Merge ../linux-2.6 by hand

88 files changed, 1919 insertions, 1125 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index 48f5422cb19a..01a295232f75 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -810,7 +810,7 @@ config TMPFS
 
 config HUGETLBFS
         bool "HugeTLB file system support"
-        depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || X86_64 || BROKEN
+        depends X86 || IA64 || PPC64 || SPARC64 || SUPERH || BROKEN
 
 config HUGETLB_PAGE
         def_bool HUGETLBFS
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 434c19d076ac..175b2e8177c1 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -57,7 +57,7 @@ config BINFMT_SHARED_FLAT
 
 config BINFMT_AOUT
         tristate "Kernel support for a.out and ECOFF binaries"
-        depends on (X86 && !X86_64) || ALPHA || ARM || M68K || SPARC32
+        depends on X86_32 || ALPHA || ARM || M68K || SPARC32
         ---help---
           A.out (Assembler.OUTput) is a set of formats for libraries and
           executables used in the earliest versions of UNIX.  Linux used
diff --git a/fs/afs/file.c b/fs/afs/file.c
index 23c125128024..4975c9c193dd 100644
--- a/fs/afs/file.c
+++ b/fs/afs/file.c
@@ -29,7 +29,7 @@ static int afs_file_release(struct inode *inode, struct file *file);
 
 static int afs_file_readpage(struct file *file, struct page *page);
 static int afs_file_invalidatepage(struct page *page, unsigned long offset);
-static int afs_file_releasepage(struct page *page, int gfp_flags);
+static int afs_file_releasepage(struct page *page, gfp_t gfp_flags);
 
 static ssize_t afs_file_write(struct file *file, const char __user *buf,
                               size_t size, loff_t *off);
@@ -279,7 +279,7 @@ static int afs_file_invalidatepage(struct page *page, unsigned long offset)
 /*
  * release a page and cleanup its private data
  */
-static int afs_file_releasepage(struct page *page, int gfp_flags)
+static int afs_file_releasepage(struct page *page, gfp_t gfp_flags)
 {
         struct cachefs_page *pageio;
 
@@ -291,8 +291,8 @@ static int afs_file_releasepage(struct page *page, int gfp_flags)
                 cachefs_uncache_page(vnode->cache, page);
 #endif
 
-                pageio = (struct cachefs_page *) page->private;
-                page->private = 0;
+                pageio = (struct cachefs_page *) page_private(page);
+                set_page_private(page, 0);
                 ClearPagePrivate(page);
 
                 if (pageio)
diff --git a/fs/attr.c b/fs/attr.c
index b1796fb9e524..67bcd9b14ea5 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -117,9 +117,6 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
         struct timespec now;
         unsigned int ia_valid = attr->ia_valid;
 
-        if (!inode)
-                BUG();
-
         mode = inode->i_mode;
         now = current_fs_time(inode->i_sb);
 
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index dd9baabaf016..72011826f0cb 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -318,7 +318,6 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs)
         current->mm->free_area_cache = current->mm->mmap_base;
         current->mm->cached_hole_size = 0;
 
-        set_mm_counter(current->mm, rss, 0);
         current->mm->mmap = NULL;
         compute_creds(bprm);
         current->flags &= ~PF_FORKNOEXEC;
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index d4b15576e584..6fa6adc40972 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -773,7 +773,6 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 
         /* Do this so that we can load the interpreter, if need be.  We will
            change some of these later */
-        set_mm_counter(current->mm, rss, 0);
         current->mm->free_area_cache = current->mm->mmap_base;
         current->mm->cached_hole_size = 0;
         retval = setup_arg_pages(bprm, randomize_stack_top(STACK_TOP),
@@ -1503,9 +1502,7 @@ static int elf_core_dump(long signr, struct pt_regs * regs, struct file * file)
         fill_psinfo(psinfo, current->group_leader, current->mm);
         fill_note(notes +1, "CORE", NT_PRPSINFO, sizeof(*psinfo), psinfo);
         
-        fill_note(notes +2, "CORE", NT_TASKSTRUCT, sizeof(*current), current);
-  
-        numnote = 3;
+        numnote = 2;
 
         auxv = (elf_addr_t *) current->mm->saved_auxv;
 
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 134c9c0d1f54..dda87c4c82a3 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -294,14 +294,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, struct pt_regs *regs
                                   &interp_params,
                                   &current->mm->start_stack,
                                   &current->mm->start_brk);
-#endif
-
-        /* do this so that we can load the interpreter, if need be
-         * - we will change some of these later
-         */
-        set_mm_counter(current->mm, rss, 0);
 
-#ifdef CONFIG_MMU
         retval = setup_arg_pages(bprm, current->mm->start_stack, executable_stack);
         if (retval < 0) {
                 send_sig(SIGKILL, current, 0);
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 7974efa107bc..9d6625829b99 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -650,7 +650,6 @@ static int load_flat_file(struct linux_binprm * bprm,
                 current->mm->start_brk = datapos + data_len + bss_len;
                 current->mm->brk = (current->mm->start_brk + 3) & ~3;
                 current->mm->context.end_brk = memp + ksize((void *) memp) - stack_len;
-                set_mm_counter(current->mm, rss, 0);
         }
 
         if (flags & FLAT_FLAG_KTRACE)
diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c
index 227a2682d2bf..00a91dc25d16 100644
--- a/fs/binfmt_som.c
+++ b/fs/binfmt_som.c
@@ -259,7 +259,6 @@ load_som_binary(struct linux_binprm * bprm, struct pt_regs * regs)
         create_som_tables(bprm);
 
         current->mm->start_stack = bprm->p;
-        set_mm_counter(current->mm, rss, 0);
 
 #if 0
         printk("(start_brk) %08lx\n" , (unsigned long) current->mm->start_brk);
diff --git a/fs/bio.c b/fs/bio.c
index 7d81a93afd48..460554b07ff9 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -778,7 +778,7 @@ static int bio_map_kern_endio(struct bio *bio, unsigned int bytes_done, int err)
 
 
 static struct bio *__bio_map_kern(request_queue_t *q, void *data,
-                                  unsigned int len, unsigned int gfp_mask)
+                                  unsigned int len, gfp_t gfp_mask)
 {
         unsigned long kaddr = (unsigned long)data;
         unsigned long end = (kaddr + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
@@ -825,7 +825,7 @@ static struct bio *__bio_map_kern(request_queue_t *q, void *data,
  *      device. Returns an error pointer in case of error.
  */
 struct bio *bio_map_kern(request_queue_t *q, void *data, unsigned int len,
-                         unsigned int gfp_mask)
+                         gfp_t gfp_mask)
 {
         struct bio *bio;
 
diff --git a/fs/buffer.c b/fs/buffer.c
index 1216c0d3c8ce..35fa34977e81 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -96,7 +96,7 @@ static void
 __clear_page_buffers(struct page *page)
 {
         ClearPagePrivate(page);
-        page->private = 0;
+        set_page_private(page, 0);
         page_cache_release(page);
 }
 
@@ -502,7 +502,7 @@ static void free_more_memory(void)
         yield();
 
         for_each_pgdat(pgdat) {
-                zones = pgdat->node_zonelists[GFP_NOFS&GFP_ZONEMASK].zones;
+                zones = pgdat->node_zonelists[gfp_zone(GFP_NOFS)].zones;
                 if (*zones)
                         try_to_free_pages(zones, GFP_NOFS);
         }
@@ -1478,8 +1478,10 @@ EXPORT_SYMBOL(__getblk);
 void __breadahead(struct block_device *bdev, sector_t block, int size)
 {
         struct buffer_head *bh = __getblk(bdev, block, size);
-        ll_rw_block(READA, 1, &bh);
-        brelse(bh);
+        if (likely(bh)) {
+                ll_rw_block(READA, 1, &bh);
+                brelse(bh);
+        }
 }
 EXPORT_SYMBOL(__breadahead);
 
@@ -1497,7 +1499,7 @@ __bread(struct block_device *bdev, sector_t block, int size)
 {
         struct buffer_head *bh = __getblk(bdev, block, size);
 
-        if (!buffer_uptodate(bh))
+        if (likely(bh) && !buffer_uptodate(bh))
                 bh = __bread_slow(bh);
         return bh;
 }
@@ -1571,7 +1573,7 @@ static inline void discard_buffer(struct buffer_head * bh)
  *
  * NOTE: @gfp_mask may go away, and this function may become non-blocking.
  */
-int try_to_release_page(struct page *page, int gfp_mask)
+int try_to_release_page(struct page *page, gfp_t gfp_mask)
 {
         struct address_space * const mapping = page->mapping;
 
@@ -1637,6 +1639,15 @@ out:
 }
 EXPORT_SYMBOL(block_invalidatepage);
 
+int do_invalidatepage(struct page *page, unsigned long offset)
+{
+        int (*invalidatepage)(struct page *, unsigned long);
+        invalidatepage = page->mapping->a_ops->invalidatepage;
+        if (invalidatepage == NULL)
+                invalidatepage = block_invalidatepage;
+        return (*invalidatepage)(page, offset);
+}
+
 /*
  * We attach and possibly dirty the buffers atomically wrt
  * __set_page_dirty_buffers() via private_lock.  try_to_free_buffers
@@ -2696,7 +2707,7 @@ int block_write_full_page(struct page *page, get_block_t *get_block,
                  * they may have been added in ext3_writepage().  Make them
                  * freeable here, so the page does not leak.
                  */
-                block_invalidatepage(page, 0);
+                do_invalidatepage(page, 0);
                 unlock_page(page);
                 return 0; /* don't care */
         }
diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c
index 3d1cce3653b8..6a3df88accfe 100644
--- a/fs/coda/psdev.c
+++ b/fs/coda/psdev.c
@@ -370,8 +370,8 @@ static int init_coda_psdev(void)
         }               
         devfs_mk_dir ("coda");
         for (i = 0; i < MAX_CODADEVS; i++) {
-                class_device_create(coda_psdev_class, MKDEV(CODA_PSDEV_MAJOR,i),
-                                NULL, "cfs%d", i);
+                class_device_create(coda_psdev_class, NULL,
+                                MKDEV(CODA_PSDEV_MAJOR,i), NULL, "cfs%d", i);
                 err = devfs_mk_cdev(MKDEV(CODA_PSDEV_MAJOR, i),
                                 S_IFCHR|S_IRUSR|S_IWUSR, "coda/%d", i);
                 if (err)
diff --git a/fs/compat.c b/fs/compat.c
index a719e158e002..8e71cdbecc7c 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1490,7 +1490,6 @@ int compat_do_execve(char * filename,
                 /* execve success */
                 security_bprm_free(bprm);
                 acct_update_integrals(current);
-                update_mem_hiwater(current);
                 kfree(bprm);
                 return retval;
         }
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index e28a74203f3b..43dbcb0b21eb 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -3046,10 +3046,15 @@ HANDLE_IOCTL(RAW_GETBIND, raw_ioctl)
 /* Serial */
 HANDLE_IOCTL(TIOCGSERIAL, serial_struct_ioctl)
 HANDLE_IOCTL(TIOCSSERIAL, serial_struct_ioctl)
+#ifdef TIOCGLTC
+COMPATIBLE_IOCTL(TIOCGLTC)
+COMPATIBLE_IOCTL(TIOCSLTC)
+#endif
 /* Usbdevfs */
 HANDLE_IOCTL(USBDEVFS_CONTROL32, do_usbdevfs_control)
 HANDLE_IOCTL(USBDEVFS_BULK32, do_usbdevfs_bulk)
 HANDLE_IOCTL(USBDEVFS_DISCSIGNAL32, do_usbdevfs_discsignal)
+COMPATIBLE_IOCTL(USBDEVFS_IOCTL32)
 /* i2c */
 HANDLE_IOCTL(I2C_FUNCS, w_long)
 HANDLE_IOCTL(I2C_RDWR, do_i2c_rdwr_ioctl)
diff --git a/fs/dcache.c b/fs/dcache.c
index fb10386c59be..e90512ed35a4 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -689,7 +689,7 @@ void shrink_dcache_anon(struct hlist_head *head)
  *
  * In this case we return -1 to tell the caller that we baled.
  */
-static int shrink_dcache_memory(int nr, unsigned int gfp_mask)
+static int shrink_dcache_memory(int nr, gfp_t gfp_mask)
 {
         if (nr) {
                 if (!(gfp_mask & __GFP_FS))
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 0d06097bc995..3931e7f1e6bf 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -162,6 +162,7 @@ static int dio_refill_pages(struct dio *dio)
         up_read(&current->mm->mmap_sem);
 
         if (ret < 0 && dio->blocks_available && (dio->rw == WRITE)) {
+                struct page *page = ZERO_PAGE(dio->curr_user_address);
                 /*
                  * A memory fault, but the filesystem has some outstanding
                  * mapped blocks.  We need to use those blocks up to avoid
@@ -169,7 +170,8 @@ static int dio_refill_pages(struct dio *dio)
                  */
                 if (dio->page_errors == 0)
                         dio->page_errors = ret;
-                dio->pages[0] = ZERO_PAGE(dio->curr_user_address);
+                page_cache_get(page);
+                dio->pages[0] = page;
                 dio->head = 0;
                 dio->tail = 1;
                 ret = 0;
diff --git a/fs/dquot.c b/fs/dquot.c
index b9732335bcdc..ea7644227a65 100644
--- a/fs/dquot.c
+++ b/fs/dquot.c
@@ -500,7 +500,7 @@ static void prune_dqcache(int count)
  * more memory
  */
 
-static int shrink_dqcache_memory(int nr, unsigned int gfp_mask)
+static int shrink_dqcache_memory(int nr, gfp_t gfp_mask)
 {
         if (nr) {
                 spin_lock(&dq_list_lock);
@@ -662,7 +662,7 @@ static void add_dquot_ref(struct super_block *sb, int type)
 restart:
         file_list_lock();
         list_for_each(p, &sb->s_files) {
-                struct file *filp = list_entry(p, struct file, f_list);
+                struct file *filp = list_entry(p, struct file, f_u.fu_list);
                 struct inode *inode = filp->f_dentry->d_inode;
                 if (filp->f_mode & FMODE_WRITE && dqinit_needed(inode, type)) {
                         struct dentry *dentry = dget(filp->f_dentry);
diff --git a/fs/exec.c b/fs/exec.c
index a04a575ad433..10d493fea7ce 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -126,8 +126,7 @@ asmlinkage long sys_uselib(const char __user * library)
         struct nameidata nd;
         int error;
 
-        nd.intent.open.flags = FMODE_READ;
-        error = __user_walk(library, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
+        error = __user_path_lookup_open(library, LOOKUP_FOLLOW, &nd, FMODE_READ);
         if (error)
                 goto out;
 
@@ -139,7 +138,7 @@ asmlinkage long sys_uselib(const char __user * library)
         if (error)
                 goto exit;
 
-        file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+        file = nameidata_to_filp(&nd, O_RDONLY);
         error = PTR_ERR(file);
         if (IS_ERR(file))
                 goto out;
@@ -167,6 +166,7 @@ asmlinkage long sys_uselib(const char __user * library)
 out:
         return error;
 exit:
+        release_open_intent(&nd);
         path_release(&nd);
         goto out;
 }
@@ -309,40 +309,36 @@ void install_arg_page(struct vm_area_struct *vma,
         pud_t * pud;
         pmd_t * pmd;
         pte_t * pte;
+        spinlock_t *ptl;
 
         if (unlikely(anon_vma_prepare(vma)))
-                goto out_sig;
+                goto out;
 
         flush_dcache_page(page);
         pgd = pgd_offset(mm, address);
-
-        spin_lock(&mm->page_table_lock);
         pud = pud_alloc(mm, pgd, address);
         if (!pud)
                 goto out;
         pmd = pmd_alloc(mm, pud, address);
         if (!pmd)
                 goto out;
-        pte = pte_alloc_map(mm, pmd, address);
+        pte = pte_alloc_map_lock(mm, pmd, address, &ptl);
         if (!pte)
                 goto out;
         if (!pte_none(*pte)) {
-                pte_unmap(pte);
+                pte_unmap_unlock(pte, ptl);
                 goto out;
         }
-        inc_mm_counter(mm, rss);
+        inc_mm_counter(mm, anon_rss);
         lru_cache_add_active(page);
         set_pte_at(mm, address, pte, pte_mkdirty(pte_mkwrite(mk_pte(
                                         page, vma->vm_page_prot))));
         page_add_anon_rmap(page, vma, address);
-        pte_unmap(pte);
-        spin_unlock(&mm->page_table_lock);
+        pte_unmap_unlock(pte, ptl);
 
         /* no need for flush_tlb */
         return;
 out:
-        spin_unlock(&mm->page_table_lock);
-out_sig:
         __free_page(page);
         force_sig(SIGKILL, current);
 }
@@ -490,8 +486,7 @@ struct file *open_exec(const char *name)
         int err;
         struct file *file;
 
-        nd.intent.open.flags = FMODE_READ;
-        err = path_lookup(name, LOOKUP_FOLLOW|LOOKUP_OPEN, &nd);
+        err = path_lookup_open(name, LOOKUP_FOLLOW, &nd, FMODE_READ);
         file = ERR_PTR(err);
 
         if (!err) {
@@ -504,7 +499,7 @@ struct file *open_exec(const char *name)
                                 err = -EACCES;
                         file = ERR_PTR(err);
                         if (!err) {
-                                file = dentry_open(nd.dentry, nd.mnt, O_RDONLY);
+                                file = nameidata_to_filp(&nd, O_RDONLY);
                                 if (!IS_ERR(file)) {
                                         err = deny_write_access(file);
                                         if (err) {
@@ -516,6 +511,7 @@ out:
                                 return file;
                         }
                 }
+                release_open_intent(&nd);
                 path_release(&nd);
         }
         goto out;
@@ -634,10 +630,9 @@ static inline int de_thread(struct task_struct *tsk)
         /*
          * Account for the thread group leader hanging around:
          */
-        count = 2;
-        if (thread_group_leader(current))
-                count = 1;
-        else {
+        count = 1;
+        if (!thread_group_leader(current)) {
+                count = 2;
                 /*
                  * The SIGALRM timer survives the exec, but needs to point
                  * at us as the new group leader now.  We have a race with
@@ -646,8 +641,10 @@ static inline int de_thread(struct task_struct *tsk)
                  * before we can safely let the old group leader die.
                  */
                 sig->real_timer.data = (unsigned long)current;
+                spin_unlock_irq(lock);
                 if (del_timer_sync(&sig->real_timer))
                         add_timer(&sig->real_timer);
+                spin_lock_irq(lock);
         }
         while (atomic_read(&sig->count) > count) {
                 sig->group_exit_task = current;
@@ -659,7 +656,6 @@ static inline int de_thread(struct task_struct *tsk)
         }
         sig->group_exit_task = NULL;
         sig->notify_count = 0;
-        sig->real_timer.data = (unsigned long)current;
         spin_unlock_irq(lock);
 
         /*
@@ -1207,7 +1203,6 @@ int do_execve(char * filename,
                 /* execve success */
                 security_bprm_free(bprm);
                 acct_update_integrals(current);
-                update_mem_hiwater(current);
                 kfree(bprm);
                 return retval;
         }
@@ -1422,19 +1417,16 @@ static void zap_threads (struct mm_struct *mm)
 static void coredump_wait(struct mm_struct *mm)
 {
         DECLARE_COMPLETION(startup_done);
+        int core_waiters;
 
-        mm->core_waiters++; /* let other threads block */
         mm->core_startup_done = &startup_done;
 
-        /* give other threads a chance to run: */
-        yield();
-
         zap_threads(mm);
-        if (--mm->core_waiters) {
-                up_write(&mm->mmap_sem);
+        core_waiters = mm->core_waiters;
+        up_write(&mm->mmap_sem);
+
+        if (core_waiters)
                 wait_for_completion(&startup_done);
-        } else
-                up_write(&mm->mmap_sem);
         BUG_ON(mm->core_waiters);
 }
 
@@ -1468,11 +1460,21 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
                 current->fsuid = 0;     /* Dump root private */
         }
         mm->dumpable = 0;
-        init_completion(&mm->core_done);
+
+        retval = -EAGAIN;
         spin_lock_irq(&current->sighand->siglock);
-        current->signal->flags = SIGNAL_GROUP_EXIT;
-        current->signal->group_exit_code = exit_code;
+        if (!(current->signal->flags & SIGNAL_GROUP_EXIT)) {
+                current->signal->flags = SIGNAL_GROUP_EXIT;
+                current->signal->group_exit_code = exit_code;
+                retval = 0;
+        }
         spin_unlock_irq(&current->sighand->siglock);
+        if (retval) {
+                up_write(&mm->mmap_sem);
+                goto fail;
+        }
+
+        init_completion(&mm->core_done);
         coredump_wait(mm);
 
         /*
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index fdba4d1d3c60..e7d3f0522d01 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -440,6 +440,10 @@ static int ext2_alloc_branch(struct inode *inode,
                  * the pointer to new one, then send parent to disk.
                  */
                 bh = sb_getblk(inode->i_sb, parent);
+                if (!bh) {
+                        err = -EIO;
+                        break;
+                }
                 lock_buffer(bh);
                 memset(bh->b_data, 0, blocksize);
                 branch[n].bh = bh;
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 0213db4911a2..7992d21e0e09 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -20,6 +20,8 @@
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 
+#include "bitmap.h"
+
 /*
  * balloc.c contains the blocks allocation and deallocation routines
  */
@@ -1010,7 +1012,7 @@ retry:
  * allocation within the reservation window.
  *
  * This will avoid keeping on searching the reservation list again and
- * again when someboday is looking for a free block (without
+ * again when somebody is looking for a free block (without
  * reservation), and there are lots of free blocks, but they are all
  * being reserved.
  *
@@ -1416,12 +1418,12 @@ unsigned long ext3_count_free_blocks(struct super_block *sb)
         unsigned long bitmap_count, x;
         struct buffer_head *bitmap_bh = NULL;
 
-        lock_super(sb);
         es = EXT3_SB(sb)->s_es;
         desc_count = 0;
         bitmap_count = 0;
         gdp = NULL;
 
+        smp_rmb();
         for (i = 0; i < ngroups; i++) {
                 gdp = ext3_get_group_desc(sb, i, NULL);
                 if (!gdp)
@@ -1440,7 +1442,6 @@ unsigned long ext3_count_free_blocks(struct super_block *sb)
         brelse(bitmap_bh);
         printk("ext3_count_free_blocks: stored = %u, computed = %lu, %lu\n",
                le32_to_cpu(es->s_free_blocks_count), desc_count, bitmap_count);
-        unlock_super(sb);
         return bitmap_count;
 #else
         desc_count = 0;
diff --git a/fs/ext3/bitmap.c b/fs/ext3/bitmap.c
index 6c419b9ab0e8..5b4ba3e246e6 100644
--- a/fs/ext3/bitmap.c
+++ b/fs/ext3/bitmap.c
@@ -8,7 +8,7 @@
  */
 
 #include <linux/buffer_head.h>
-
+#include "bitmap.h"
 
 static int nibblemap[] = {4, 3, 3, 2, 3, 2, 2, 1, 3, 2, 2, 1, 2, 1, 1, 0};
 
diff --git a/fs/ext3/bitmap.h b/fs/ext3/bitmap.h
new file mode 100644
index 000000000000..6ee503a6bb4e
--- /dev/null
+++ b/fs/ext3/bitmap.h
@@ -0,0 +1,8 @@
+/*  linux/fs/ext3/bitmap.c
+ *
+ * Copyright (C) 2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+*/
+
+extern unsigned long ext3_count_free (struct buffer_head *, unsigned int );
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 6549945f9ac1..df3f517c54ac 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -26,6 +26,7 @@
 
 #include <asm/byteorder.h>
 
+#include "bitmap.h"
 #include "xattr.h"
 #include "acl.h"
 
@@ -704,7 +705,6 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
         unsigned long bitmap_count, x;
         struct buffer_head *bitmap_bh = NULL;
 
-        lock_super (sb);
         es = EXT3_SB(sb)->s_es;
         desc_count = 0;
         bitmap_count = 0;
@@ -727,7 +727,6 @@ unsigned long ext3_count_free_inodes (struct super_block * sb)
         brelse(bitmap_bh);
         printk("ext3_count_free_inodes: stored = %u, computed = %lu, %lu\n",
                 le32_to_cpu(es->s_free_inodes_count), desc_count, bitmap_count);
-        unlock_super(sb);
         return desc_count;
 #else
         desc_count = 0;
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index b5177c90d6f1..5d9b00e28837 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -491,7 +491,7 @@ static unsigned long ext3_find_goal(struct inode *inode, long block,
  *      the same format as ext3_get_branch() would do. We are calling it after
  *      we had read the existing part of chain and partial points to the last
  *      triple of that (one with zero ->key). Upon the exit we have the same
- *      picture as after the successful ext3_get_block(), excpet that in one
+ *      picture as after the successful ext3_get_block(), except that in one
  *      place chain is disconnected - *branch->p is still zero (we did not
  *      set the last link), but branch->key contains the number that should
  *      be placed into *branch->p to fill that gap.
@@ -523,7 +523,6 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
                         if (!nr)
                                 break;
                         branch[n].key = cpu_to_le32(nr);
-                        keys = n+1;
 
                         /*
                          * Get buffer_head for parent block, zero it out
@@ -531,6 +530,9 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
                          * parent to disk.  
                          */
                         bh = sb_getblk(inode->i_sb, parent);
+                        if (!bh)
+                                break;
+                        keys = n+1;
                         branch[n].bh = bh;
                         lock_buffer(bh);
                         BUFFER_TRACE(bh, "call get_create_access");
@@ -864,6 +866,10 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode * inode,
         if (!*errp && buffer_mapped(&dummy)) {
                 struct buffer_head *bh;
                 bh = sb_getblk(inode->i_sb, dummy.b_blocknr);
+                if (!bh) {
+                        *errp = -EIO;
+                        goto err;
+                }
                 if (buffer_new(&dummy)) {
                         J_ASSERT(create != 0);
                         J_ASSERT(handle != 0);
@@ -896,6 +902,7 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode * inode,
                 }
                 return bh;
         }
+err:
         return NULL;
 }
 
@@ -1434,7 +1441,7 @@ static int ext3_invalidatepage(struct page *page, unsigned long offset)
         return journal_invalidatepage(journal, page, offset);
 }
 
-static int ext3_releasepage(struct page *page, int wait)
+static int ext3_releasepage(struct page *page, gfp_t wait)
 {
         journal_t *journal = EXT3_JOURNAL(page->mapping->host);
 
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 50378d8ff84b..b3c690a3b54a 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -36,6 +36,8 @@
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
 #include <linux/smp_lock.h>
+
+#include "namei.h"
 #include "xattr.h"
 #include "acl.h"
 
diff --git a/fs/ext3/namei.h b/fs/ext3/namei.h
new file mode 100644
index 000000000000..f2ce2b0065c9
--- /dev/null
+++ b/fs/ext3/namei.h
@@ -0,0 +1,8 @@
+/*  linux/fs/ext3/namei.h
+ *
+ * Copyright (C) 2005 Simtec Electronics
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+*/
+
+extern struct dentry *ext3_get_parent(struct dentry *child);
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 57f79106267d..1be78b4b4de9 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -118,6 +118,8 @@ static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
         int err;
 
         bh = sb_getblk(sb, blk);
+        if (!bh)
+                return ERR_PTR(-EIO);
         if ((err = ext3_journal_get_write_access(handle, bh))) {
                 brelse(bh);
                 bh = ERR_PTR(err);
@@ -202,6 +204,10 @@ static int setup_new_group_blocks(struct super_block *sb,
                 ext3_debug("update backup group %#04lx (+%d)\n", block, bit);
 
                 gdb = sb_getblk(sb, block);
+                if (!gdb) {
+                        err = -EIO;
+                        goto exit_bh;
+                }
                 if ((err = ext3_journal_get_write_access(handle, gdb))) {
                         brelse(gdb);
                         goto exit_bh;
@@ -643,6 +649,10 @@ static void update_backups(struct super_block *sb,
                         break;
 
                 bh = sb_getblk(sb, group * bpg + blk_off);
+                if (!bh) {
+                        err = -EIO;
+                        break;
+                }
                 ext3_debug("update metadata backup %#04lx\n",
                           (unsigned long)bh->b_blocknr);
                 if ((err = ext3_journal_get_write_access(handle, bh)))
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 9e24ceb019fe..f594989ccb7a 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -36,9 +36,12 @@
 #include <linux/namei.h>
 #include <linux/quotaops.h>
 #include <linux/seq_file.h>
+
 #include <asm/uaccess.h>
+
 #include "xattr.h"
 #include "acl.h"
+#include "namei.h"
 
 static int ext3_load_journal(struct super_block *, struct ext3_super_block *);
 static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
@@ -510,19 +513,11 @@ static void ext3_clear_inode(struct inode *inode)
         kfree(rsv);
 }
 
-static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
+static inline void ext3_show_quota_options(struct seq_file *seq, struct super_block *sb)
 {
-        struct super_block *sb = vfs->mnt_sb;
+#if defined(CONFIG_QUOTA)
         struct ext3_sb_info *sbi = EXT3_SB(sb);
 
-        if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
-                seq_puts(seq, ",data=journal");
-        else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
-                seq_puts(seq, ",data=ordered");
-        else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
-                seq_puts(seq, ",data=writeback");
-
-#if defined(CONFIG_QUOTA)
         if (sbi->s_jquota_fmt)
                 seq_printf(seq, ",jqfmt=%s",
                 (sbi->s_jquota_fmt == QFMT_VFS_OLD) ? "vfsold": "vfsv0");
@@ -539,6 +534,20 @@ static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
         if (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)
                 seq_puts(seq, ",grpquota");
 #endif
+}
+
+static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
+{
+        struct super_block *sb = vfs->mnt_sb;
+
+        if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
+                seq_puts(seq, ",data=journal");
+        else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
+                seq_puts(seq, ",data=ordered");
+        else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
+                seq_puts(seq, ",data=writeback");
+
+        ext3_show_quota_options(seq, sb);
 
         return 0;
 }
@@ -609,7 +618,6 @@ static struct super_operations ext3_sops = {
 #endif
 };
 
-struct dentry *ext3_get_parent(struct dentry *child);
 static struct export_operations ext3_export_ops = {
         .get_parent = ext3_get_parent,
 };
diff --git a/fs/ext3/xattr.c b/fs/ext3/xattr.c
index 269c7b92db9a..430de9f63be3 100644
--- a/fs/ext3/xattr.c
+++ b/fs/ext3/xattr.c
@@ -210,7 +210,7 @@ ext3_xattr_find_entry(struct ext3_xattr_entry **pentry, int name_index,
         return cmp ? -ENODATA : 0;
 }
 
-int
+static int
 ext3_xattr_block_get(struct inode *inode, int name_index, const char *name,
                      void *buffer, size_t buffer_size)
 {
@@ -354,7 +354,7 @@ ext3_xattr_list_entries(struct inode *inode, struct ext3_xattr_entry *entry,
         return buffer_size - rest;
 }
 
-int
+static int
 ext3_xattr_block_list(struct inode *inode, char *buffer, size_t buffer_size)
 {
         struct buffer_head *bh = NULL;
@@ -626,7 +626,7 @@ struct ext3_xattr_block_find {
         struct buffer_head *bh;
 };
 
-int
+static int
 ext3_xattr_block_find(struct inode *inode, struct ext3_xattr_info *i,
                       struct ext3_xattr_block_find *bs)
 {
@@ -859,7 +859,7 @@ struct ext3_xattr_ibody_find {
         struct ext3_iloc iloc;
 };
 
-int
+static int
 ext3_xattr_ibody_find(struct inode *inode, struct ext3_xattr_info *i,
                       struct ext3_xattr_ibody_find *is)
 {
diff --git a/fs/fat/dir.c b/fs/fat/dir.c
index 895049b2ac9c..ba824964b9bb 100644
--- a/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@ -222,6 +222,80 @@ fat_shortname2uni(struct nls_table *nls, unsigned char *buf, int buf_size,
         return len;
 }
 
+enum { PARSE_INVALID = 1, PARSE_NOT_LONGNAME, PARSE_EOF, };
+
+/**
+ * fat_parse_long - Parse extended directory entry.
+ *
+ * This function returns zero on success, negative value on error, or one of
+ * the following:
+ *
+ * %PARSE_INVALID - Directory entry is invalid.
+ * %PARSE_NOT_LONGNAME - Directory entry does not contain longname.
+ * %PARSE_EOF - Directory has no more entries.
+ */
+static int fat_parse_long(struct inode *dir, loff_t *pos,
+                          struct buffer_head **bh, struct msdos_dir_entry **de,
+                          wchar_t **unicode, unsigned char *nr_slots)
+{
+        struct msdos_dir_slot *ds;
+        unsigned char id, slot, slots, alias_checksum;
+
+        if (!*unicode) {
+                *unicode = (wchar_t *)__get_free_page(GFP_KERNEL);
+                if (!*unicode) {
+                        brelse(*bh);
+                        return -ENOMEM;
+                }
+        }
+parse_long:
+        slots = 0;
+        ds = (struct msdos_dir_slot *)*de;
+        id = ds->id;
+        if (!(id & 0x40))
+                return PARSE_INVALID;
+        slots = id & ~0x40;
+        if (slots > 20 || !slots)       /* ceil(256 * 2 / 26) */
+                return PARSE_INVALID;
+        *nr_slots = slots;
+        alias_checksum = ds->alias_checksum;
+
+        slot = slots;
+        while (1) {
+                int offset;
+
+                slot--;
+                offset = slot * 13;
+                fat16_towchar(*unicode + offset, ds->name0_4, 5);
+                fat16_towchar(*unicode + offset + 5, ds->name5_10, 6);
+                fat16_towchar(*unicode + offset + 11, ds->name11_12, 2);
+
+                if (ds->id & 0x40)
+                        (*unicode)[offset + 13] = 0;
+                if (fat_get_entry(dir, pos, bh, de) < 0)
+                        return PARSE_EOF;
+                if (slot == 0)
+                        break;
+                ds = (struct msdos_dir_slot *)*de;
+                if (ds->attr != ATTR_EXT)
+                        return PARSE_NOT_LONGNAME;
+                if ((ds->id & ~0x40) != slot)
+                        goto parse_long;
+                if (ds->alias_checksum != alias_checksum)
+                        goto parse_long;
+        }
+        if ((*de)->name[0] == DELETED_FLAG)
+                return PARSE_INVALID;
+        if ((*de)->attr == ATTR_EXT)
+                goto parse_long;
+        if (IS_FREE((*de)->name) || ((*de)->attr & ATTR_VOLUME))
+                return PARSE_INVALID;
+        if (fat_checksum((*de)->name) != alias_checksum)
+                *nr_slots = 0;
+
+        return 0;
+}
+
 /*
  * Return values: negative -> error, 0 -> not found, positive -> found,
  * value is the total amount of slots, including the shortname entry.
@@ -259,68 +333,16 @@ parse_record:
                 if (de->attr != ATTR_EXT && IS_FREE(de->name))
                         continue;
                 if (de->attr == ATTR_EXT) {
-                        struct msdos_dir_slot *ds;
-                        unsigned char id;
-                        unsigned char slot;
-                        unsigned char slots;
-                        unsigned char sum;
-                        unsigned char alias_checksum;
-
-                        if (!unicode) {
-                                unicode = (wchar_t *)
-                                        __get_free_page(GFP_KERNEL);
-                                if (!unicode) {
-                                        brelse(bh);
-                                        return -ENOMEM;
-                                }
-                        }
-parse_long:
-                        slots = 0;
-                        ds = (struct msdos_dir_slot *) de;
-                        id = ds->id;
-                        if (!(id & 0x40))
-                                continue;
-                        slots = id & ~0x40;
-                        if (slots > 20 || !slots)       /* ceil(256 * 2 / 26) */
-                                continue;
-                        nr_slots = slots;
-                        alias_checksum = ds->alias_checksum;
-
-                        slot = slots;
-                        while (1) {
-                                int offset;
-
-                                slot--;
-                                offset = slot * 13;
-                                fat16_towchar(unicode + offset, ds->name0_4, 5);
-                                fat16_towchar(unicode + offset + 5, ds->name5_10, 6);
-                                fat16_towchar(unicode + offset + 11, ds->name11_12, 2);
-
-                                if (ds->id & 0x40) {
-                                        unicode[offset + 13] = 0;
-                                }
-                                if (fat_get_entry(inode, &cpos, &bh, &de) < 0)
-                                        goto EODir;
-                                if (slot == 0)
-                                        break;
-                                ds = (struct msdos_dir_slot *) de;
-                                if (ds->attr !=  ATTR_EXT)
-                                        goto parse_record;
-                                if ((ds->id & ~0x40) != slot)
-                                        goto parse_long;
-                                if (ds->alias_checksum != alias_checksum)
-                                        goto parse_long;
-                        }
-                        if (de->name[0] == DELETED_FLAG)
-                                continue;
-                        if (de->attr ==  ATTR_EXT)
-                                goto parse_long;
-                        if (IS_FREE(de->name) || (de->attr & ATTR_VOLUME))
+                        int status = fat_parse_long(inode, &cpos, &bh, &de,
+                                                    &unicode, &nr_slots);
+                        if (status < 0)
+                                return status;
+                        else if (status == PARSE_INVALID)
                                 continue;
-                        for (sum = 0, i = 0; i < 11; i++)
-                                sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + de->name[i];
-                        if (sum != alias_checksum)
-                                nr_slots = 0;
+                        else if (status == PARSE_NOT_LONGNAME)
+                                goto parse_record;
+                        else if (status == PARSE_EOF)
+                                goto EODir;
                 }
 
                 memcpy(work, de->name, sizeof(de->name));
@@ -408,8 +430,8 @@ struct fat_ioctl_filldir_callback {
         int short_len;
 };
 
-static int fat_readdirx(struct inode *inode, struct file *filp, void *dirent,
-                        filldir_t filldir, int short_only, int both)
+static int __fat_readdir(struct inode *inode, struct file *filp, void *dirent,
+                         filldir_t filldir, int short_only, int both)
 {
         struct super_block *sb = inode->i_sb;
         struct msdos_sb_info *sbi = MSDOS_SB(sb);
@@ -458,9 +480,10 @@ static int fat_readdirx(struct inode *inode, struct file *filp, void *dirent,
 
         bh = NULL;
 GetNew:
-        long_slots = 0;
         if (fat_get_entry(inode, &cpos, &bh, &de) == -1)
                 goto EODir;
+parse_record:
+        long_slots = 0;
         /* Check for long filename entry */
         if (isvfat) {
                 if (de->name[0] == DELETED_FLAG)
@@ -475,69 +498,18 @@ GetNew:
         }
 
         if (isvfat && de->attr == ATTR_EXT) {
-                struct msdos_dir_slot *ds;
-                unsigned char id;
-                unsigned char slot;
-                unsigned char slots;
-                unsigned char sum;
-                unsigned char alias_checksum;
-
-                if (!unicode) {
-                        unicode = (wchar_t *)__get_free_page(GFP_KERNEL);
-                        if (!unicode) {
-                                filp->f_pos = cpos;
-                                brelse(bh);
-                                ret = -ENOMEM;
-                                goto out;
-                        }
-                }
-ParseLong:
-                slots = 0;
-                ds = (struct msdos_dir_slot *) de;
-                id = ds->id;
-                if (!(id & 0x40))
-                        goto RecEnd;
-                slots = id & ~0x40;
-                if (slots > 20 || !slots)       /* ceil(256 * 2 / 26) */
+                int status = fat_parse_long(inode, &cpos, &bh, &de,
+                                            &unicode, &long_slots);
+                if (status < 0) {
+                        filp->f_pos = cpos;
+                        ret = status;
+                        goto out;
+                } else if (status == PARSE_INVALID)
                         goto RecEnd;
-                long_slots = slots;
-                alias_checksum = ds->alias_checksum;
-
-                slot = slots;
-                while (1) {
-                        int offset;
-
-                        slot--;
-                        offset = slot * 13;
-                        fat16_towchar(unicode + offset, ds->name0_4, 5);
-                        fat16_towchar(unicode + offset + 5, ds->name5_10, 6);
-                        fat16_towchar(unicode + offset + 11, ds->name11_12, 2);
-
-                        if (ds->id & 0x40) {
-                                unicode[offset + 13] = 0;
-                        }
-                        if (fat_get_entry(inode, &cpos, &bh, &de) == -1)
-                                goto EODir;
-                        if (slot == 0)
-                                break;
-                        ds = (struct msdos_dir_slot *) de;
-                        if (ds->attr !=  ATTR_EXT)
-                                goto RecEnd;    /* XXX */
-                        if ((ds->id & ~0x40) != slot)
-                                goto ParseLong;
-                        if (ds->alias_checksum != alias_checksum)
-                                goto ParseLong;
-                }
-                if (de->name[0] == DELETED_FLAG)
-                        goto RecEnd;
-                if (de->attr ==  ATTR_EXT)
-                        goto ParseLong;
-                if (IS_FREE(de->name) || (de->attr & ATTR_VOLUME))
-                        goto RecEnd;
-                for (sum = 0, i = 0; i < 11; i++)
-                        sum = (((sum&1)<<7)|((sum&0xfe)>>1)) + de->name[i];
-                if (sum != alias_checksum)
-                        long_slots = 0;
+                else if (status == PARSE_NOT_LONGNAME)
+                        goto parse_record;
+                else if (status == PARSE_EOF)
+                        goto EODir;
         }
 
         if (sbi->options.dotsOK) {
@@ -671,7 +643,7 @@ out:
 static int fat_readdir(struct file *filp, void *dirent, filldir_t filldir)
 {
         struct inode *inode = filp->f_dentry->d_inode;
-        return fat_readdirx(inode, filp, dirent, filldir, 0, 0);
+        return __fat_readdir(inode, filp, dirent, filldir, 0, 0);
 }
 
 static int fat_ioctl_filldir(void *__buf, const char *name, int name_len,
@@ -760,8 +732,8 @@ static int fat_dir_ioctl(struct inode * inode, struct file * filp,
         down(&inode->i_sem);
         ret = -ENOENT;
         if (!IS_DEADDIR(inode)) {
-                ret = fat_readdirx(inode, filp, &buf, fat_ioctl_filldir,
-                                   short_only, both);
+                ret = __fat_readdir(inode, filp, &buf, fat_ioctl_filldir,
+                                    short_only, both);
         }
         up(&inode->i_sem);
         if (ret >= 0)
diff --git a/fs/file_table.c b/fs/file_table.c
index 86ec8ae985b4..4dc205546547 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -56,13 +56,13 @@ void filp_dtor(void * objp, struct kmem_cache_s *cachep, unsigned long dflags)
 
 static inline void file_free_rcu(struct rcu_head *head)
 {
-        struct file *f =  container_of(head, struct file, f_rcuhead);
+        struct file *f =  container_of(head, struct file, f_u.fu_rcuhead);
         kmem_cache_free(filp_cachep, f);
 }
 
 static inline void file_free(struct file *f)
 {
-        call_rcu(&f->f_rcuhead, file_free_rcu);
+        call_rcu(&f->f_u.fu_rcuhead, file_free_rcu);
 }
 
 /* Find an unused file structure and return a pointer to it.
@@ -95,7 +95,7 @@ struct file *get_empty_filp(void)
         f->f_gid = current->fsgid;
         rwlock_init(&f->f_owner.lock);
         /* f->f_version: 0 */
-        INIT_LIST_HEAD(&f->f_list);
+        INIT_LIST_HEAD(&f->f_u.fu_list);
         return f;
 
 over:
@@ -225,15 +225,15 @@ void file_move(struct file *file, struct list_head *list)
         if (!list)
                 return;
         file_list_lock();
-        list_move(&file->f_list, list);
+        list_move(&file->f_u.fu_list, list);
         file_list_unlock();
 }
 
 void file_kill(struct file *file)
 {
-        if (!list_empty(&file->f_list)) {
+        if (!list_empty(&file->f_u.fu_list)) {
                 file_list_lock();
-                list_del_init(&file->f_list);
+                list_del_init(&file->f_u.fu_list);
                 file_list_unlock();
         }
 }
@@ -245,7 +245,7 @@ int fs_may_remount_ro(struct super_block *sb)
         /* Check that no files are currently opened for writing. */
         file_list_lock();
         list_for_each(p, &sb->s_files) {
-                struct file *file = list_entry(p, struct file, f_list);
+                struct file *file = list_entry(p, struct file, f_u.fu_list);
                 struct inode *inode = file->f_dentry->d_inode;
 
                 /* File with pending delete? */
diff --git a/fs/filesystems.c b/fs/filesystems.c
index 44082bfdfec9..9f1072836c8e 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -12,6 +12,7 @@
 #include <linux/kmod.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/sched.h>        /* for 'current' */
 #include <asm/uaccess.h>
 
 /*
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e94ab398b717..ffab4783ac64 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -230,7 +230,6 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
                          * The inode is clean, unused
                          */
                         list_move(&inode->i_list, &inode_unused);
-                        inodes_stat.nr_unused++;
                 }
         }
         wake_up_inode(inode);
@@ -238,14 +237,20 @@ __sync_single_inode(struct inode *inode, struct writeback_control *wbc)
 }
 
 /*
- * Write out an inode's dirty pages.  Called under inode_lock.
+ * Write out an inode's dirty pages.  Called under inode_lock.  Either the
+ * caller has ref on the inode (either via __iget or via syscall against an fd)
+ * or the inode has I_WILL_FREE set (via generic_forget_inode)
  */
 static int
-__writeback_single_inode(struct inode *inode,
-                        struct writeback_control *wbc)
+__writeback_single_inode(struct inode *inode, struct writeback_control *wbc)
 {
         wait_queue_head_t *wqh;
 
+        if (!atomic_read(&inode->i_count))
+                WARN_ON(!(inode->i_state & I_WILL_FREE));
+        else
+                WARN_ON(inode->i_state & I_WILL_FREE);
+
         if ((wbc->sync_mode != WB_SYNC_ALL) && (inode->i_state & I_LOCK)) {
                 list_move(&inode->i_list, &inode->i_sb->s_dirty);
                 return 0;
@@ -259,11 +264,9 @@ __writeback_single_inode(struct inode *inode,
 
                 wqh = bit_waitqueue(&inode->i_state, __I_LOCK);
                 do {
-                        __iget(inode);
                         spin_unlock(&inode_lock);
                         __wait_on_bit(wqh, &wq, inode_wait,
                                                         TASK_UNINTERRUPTIBLE);
-                        iput(inode);
                         spin_lock(&inode_lock);
                 } while (inode->i_state & I_LOCK);
         }
@@ -541,14 +544,15 @@ void sync_inodes(int wait)
 }
 
 /**
- *      write_inode_now -       write an inode to disk
- *      @inode: inode to write to disk
- *      @sync: whether the write should be synchronous or not
+ * write_inode_now      -       write an inode to disk
+ * @inode: inode to write to disk
+ * @sync: whether the write should be synchronous or not
+ *
+ * This function commits an inode to disk immediately if it is dirty. This is
+ * primarily needed by knfsd.
  *
- *      This function commits an inode to disk immediately if it is
- *      dirty. This is primarily needed by knfsd.
+ * The caller must either have a ref on the inode or must have set I_WILL_FREE.
  */
- 
 int write_inode_now(struct inode *inode, int sync)
 {
         int ret;
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index d4c869c6d01b..a6f90a6c754a 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -151,9 +151,9 @@ void fuse_release_background(struct fuse_req *req)
 /*
  * This function is called when a request is finished.  Either a reply
  * has arrived or it was interrupted (and not yet sent) or some error
- * occured during communication with userspace, or the device file was
- * closed.  It decreases the referece count for the request.  In case
- * of a background request the referece to the stored objects are
+ * occurred during communication with userspace, or the device file was
+ * closed.  It decreases the reference count for the request.  In case
+ * of a background request the reference to the stored objects are
  * released.  The requester thread is woken up (if still waiting), and
  * finally the request is either freed or put on the unused_list
  *
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 29f1e9f6e85c..70dba721acab 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -741,13 +741,14 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
         if (inode && S_ISDIR(inode->i_mode)) {
                 /* Don't allow creating an alias to a directory  */
                 struct dentry *alias = d_find_alias(inode);
-                if (alias && !(alias->d_flags & DCACHE_DISCONNECTED)) {
+                if (alias) {
                         dput(alias);
                         iput(inode);
                         return ERR_PTR(-EIO);
                 }
         }
-        return d_splice_alias(inode, entry);
+        d_add(entry, inode);
+        return NULL;
 }
 
 static int fuse_setxattr(struct dentry *entry, const char *name,
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 24d761518d86..5cb456f572c1 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -349,22 +349,22 @@ int fuse_fsync_common(struct file *file, struct dentry *de, int datasync,
                       int isdir);
 
 /**
- * Initialise file operations on a regular file
+ * Initialize file operations on a regular file
  */
 void fuse_init_file_inode(struct inode *inode);
 
 /**
- * Initialise inode operations on regular files and special files
+ * Initialize inode operations on regular files and special files
  */
 void fuse_init_common(struct inode *inode);
 
 /**
- * Initialise inode and file operations on a directory
+ * Initialize inode and file operations on a directory
  */
 void fuse_init_dir(struct inode *inode);
 
 /**
- * Initialise inode operations on a symlink
+ * Initialize inode operations on a symlink
  */
 void fuse_init_symlink(struct inode *inode);
 
@@ -411,7 +411,7 @@ struct fuse_req *fuse_get_request(struct fuse_conn *fc);
 
 /**
  * Decrement reference count of a request.  If count goes to zero put
- * on unused list (preallocated) or free reqest (not preallocated).
+ * on unused list (preallocated) or free request (not preallocated).
  */
 void fuse_put_request(struct fuse_conn *fc, struct fuse_req *req);
 
@@ -431,7 +431,7 @@ void request_send_noreply(struct fuse_conn *fc, struct fuse_req *req);
 void request_send_background(struct fuse_conn *fc, struct fuse_req *req);
 
 /**
- * Release inodes and file assiciated with background request
+ * Release inodes and file associated with background request
  */
 void fuse_release_background(struct fuse_req *req);
 
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index f1570b9f9de3..3f680c5675bf 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -46,7 +46,7 @@ static sector_t hfs_bmap(struct address_space *mapping, sector_t block)
         return generic_block_bmap(mapping, block, hfs_get_block);
 }
 
-static int hfs_releasepage(struct page *page, int mask)
+static int hfs_releasepage(struct page *page, gfp_t mask)
 {
         struct inode *inode = page->mapping->host;
         struct super_block *sb = inode->i_sb;
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index d5642705f633..f205773ddfbe 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -40,7 +40,7 @@ static sector_t hfsplus_bmap(struct address_space *mapping, sector_t block)
         return generic_block_bmap(mapping, block, hfsplus_get_block);
 }
 
-static int hfsplus_releasepage(struct page *page, int mask)
+static int hfsplus_releasepage(struct page *page, gfp_t mask)
 {
         struct inode *inode = page->mapping->host;
         struct super_block *sb = inode->i_sb;
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 3a9b6d179cbd..e026c807e6b3 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -45,10 +45,58 @@ static struct backing_dev_info hugetlbfs_backing_dev_info = {
 
 int sysctl_hugetlb_shm_group;
 
+static void huge_pagevec_release(struct pagevec *pvec)
+{
+        int i;
+
+        for (i = 0; i < pagevec_count(pvec); ++i)
+                put_page(pvec->pages[i]);
+
+        pagevec_reinit(pvec);
+}
+
+/*
+ * huge_pages_needed tries to determine the number of new huge pages that
+ * will be required to fully populate this VMA.  This will be equal to
+ * the size of the VMA in huge pages minus the number of huge pages
+ * (covered by this VMA) that are found in the page cache.
+ *
+ * Result is in bytes to be compatible with is_hugepage_mem_enough()
+ */
+unsigned long
+huge_pages_needed(struct address_space *mapping, struct vm_area_struct *vma)
+{
+        int i;
+        struct pagevec pvec;
+        unsigned long start = vma->vm_start;
+        unsigned long end = vma->vm_end;
+        unsigned long hugepages = (end - start) >> HPAGE_SHIFT;
+        pgoff_t next = vma->vm_pgoff;
+        pgoff_t endpg = next + ((end - start) >> PAGE_SHIFT);
+
+        pagevec_init(&pvec, 0);
+        while (next < endpg) {
+                if (!pagevec_lookup(&pvec, mapping, next, PAGEVEC_SIZE))
+                        break;
+                for (i = 0; i < pagevec_count(&pvec); i++) {
+                        struct page *page = pvec.pages[i];
+                        if (page->index > next)
+                                next = page->index;
+                        if (page->index >= endpg)
+                                break;
+                        next++;
+                        hugepages--;
+                }
+                huge_pagevec_release(&pvec);
+        }
+        return hugepages << HPAGE_SHIFT;
+}
+
 static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
 {
         struct inode *inode = file->f_dentry->d_inode;
         struct address_space *mapping = inode->i_mapping;
+        unsigned long bytes;
         loff_t len, vma_len;
         int ret;
 
@@ -67,6 +115,10 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
         if (vma->vm_end - vma->vm_start < HPAGE_SIZE)
                 return -EINVAL;
 
+        bytes = huge_pages_needed(mapping, vma);
+        if (!is_hugepage_mem_enough(bytes))
+                return -ENOMEM;
+
         vma_len = (loff_t)(vma->vm_end - vma->vm_start);
 
         down(&inode->i_sem);
@@ -79,10 +131,8 @@ static int hugetlbfs_file_mmap(struct file *file, struct vm_area_struct *vma)
         if (!(vma->vm_flags & VM_WRITE) && len > inode->i_size)
                 goto out;
 
-        ret = hugetlb_prefault(mapping, vma);
-        if (ret)
-                goto out;
-
+        ret = 0;
+        hugetlb_prefault_arch_hook(vma->vm_mm);
         if (inode->i_size < len)
                 inode->i_size = len;
 out:
@@ -92,7 +142,7 @@ out:
 }
 
 /*
- * Called under down_write(mmap_sem), page_table_lock is not held
+ * Called under down_write(mmap_sem).
  */
 
 #ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA
@@ -171,16 +221,6 @@ static int hugetlbfs_commit_write(struct file *file,
         return -EINVAL;
 }
 
-static void huge_pagevec_release(struct pagevec *pvec)
-{
-        int i;
-
-        for (i = 0; i < pagevec_count(pvec); ++i)
-                put_page(pvec->pages[i]);
-
-        pagevec_reinit(pvec);
-}
-
 static void truncate_huge_page(struct page *page)
 {
         clear_page_dirty(page);
@@ -224,52 +264,35 @@ static void truncate_hugepages(struct address_space *mapping, loff_t lstart)
 
 static void hugetlbfs_delete_inode(struct inode *inode)
 {
-        struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(inode->i_sb);
-
-        hlist_del_init(&inode->i_hash);
-        list_del_init(&inode->i_list);
-        list_del_init(&inode->i_sb_list);
-        inode->i_state |= I_FREEING;
-        inodes_stat.nr_inodes--;
-        spin_unlock(&inode_lock);
-
         if (inode->i_data.nrpages)
                 truncate_hugepages(&inode->i_data, 0);
-
-        security_inode_delete(inode);
-
-        if (sbinfo->free_inodes >= 0) {
-                spin_lock(&sbinfo->stat_lock);
-                sbinfo->free_inodes++;
-                spin_unlock(&sbinfo->stat_lock);
-        }
-
         clear_inode(inode);
-        destroy_inode(inode);
 }
 
 static void hugetlbfs_forget_inode(struct inode *inode)
 {
-        struct super_block *super_block = inode->i_sb;
-        struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(super_block);
+        struct super_block *sb = inode->i_sb;
 
-        if (hlist_unhashed(&inode->i_hash))
-                goto out_truncate;
-
-        if (!(inode->i_state & (I_DIRTY|I_LOCK))) {
-                list_del(&inode->i_list);
-                list_add(&inode->i_list, &inode_unused);
-        }
-        inodes_stat.nr_unused++;
-        if (!super_block || (super_block->s_flags & MS_ACTIVE)) {
+        if (!hlist_unhashed(&inode->i_hash)) {
+                if (!(inode->i_state & (I_DIRTY|I_LOCK)))
+                        list_move(&inode->i_list, &inode_unused);
+                inodes_stat.nr_unused++;
+                if (!sb || (sb->s_flags & MS_ACTIVE)) {
+                        spin_unlock(&inode_lock);
+                        return;
+                }
+                inode->i_state |= I_WILL_FREE;
                 spin_unlock(&inode_lock);
-                return;
+                /*
+                 * write_inode_now is a noop as we set BDI_CAP_NO_WRITEBACK
+                 * in our backing_dev_info.
+                 */
+                write_inode_now(inode, 1);
+                spin_lock(&inode_lock);
+                inode->i_state &= ~I_WILL_FREE;
+                inodes_stat.nr_unused--;
+                hlist_del_init(&inode->i_hash);
         }
-
-        /* write_inode_now() ? */
-        inodes_stat.nr_unused--;
-        hlist_del_init(&inode->i_hash);
-out_truncate:
         list_del_init(&inode->i_list);
         list_del_init(&inode->i_sb_list);
         inode->i_state |= I_FREEING;
@@ -277,13 +300,6 @@ out_truncate:
         spin_unlock(&inode_lock);
         if (inode->i_data.nrpages)
                 truncate_hugepages(&inode->i_data, 0);
-
-        if (sbinfo->free_inodes >= 0) {
-                spin_lock(&sbinfo->stat_lock);
-                sbinfo->free_inodes++;
-                spin_unlock(&sbinfo->stat_lock);
-        }
-
         clear_inode(inode);
         destroy_inode(inode);
 }
@@ -291,7 +307,7 @@ out_truncate:
 static void hugetlbfs_drop_inode(struct inode *inode)
 {
         if (!inode->i_nlink)
-                hugetlbfs_delete_inode(inode);
+                generic_delete_inode(inode);
         else
                 hugetlbfs_forget_inode(inode);
 }
@@ -308,7 +324,6 @@ hugetlb_vmtruncate_list(struct prio_tree_root *root, unsigned long h_pgoff)
 
         vma_prio_tree_foreach(vma, &iter, root, h_pgoff, ULONG_MAX) {
                 unsigned long h_vm_pgoff;
-                unsigned long v_length;
                 unsigned long v_offset;
 
                 h_vm_pgoff = vma->vm_pgoff >> (HPAGE_SHIFT - PAGE_SHIFT);
@@ -319,11 +334,8 @@ hugetlb_vmtruncate_list(struct prio_tree_root *root, unsigned long h_pgoff)
                 if (h_vm_pgoff >= h_pgoff)
                         v_offset = 0;
 
-                v_length = vma->vm_end - vma->vm_start;
-
-                zap_hugepage_range(vma,
-                                vma->vm_start + v_offset,
-                                v_length - v_offset);
+                unmap_hugepage_range(vma,
+                                vma->vm_start + v_offset, vma->vm_end);
         }
 }
 
@@ -379,17 +391,6 @@ static struct inode *hugetlbfs_get_inode(struct super_block *sb, uid_t uid,
                                         gid_t gid, int mode, dev_t dev)
 {
         struct inode *inode;
-        struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(sb);
-
-        if (sbinfo->free_inodes >= 0) {
-                spin_lock(&sbinfo->stat_lock);
-                if (!sbinfo->free_inodes) {
-                        spin_unlock(&sbinfo->stat_lock);
-                        return NULL;
-                }
-                sbinfo->free_inodes--;
-                spin_unlock(&sbinfo->stat_lock);
-        }
 
         inode = new_inode(sb);
         if (inode) {
@@ -531,29 +532,51 @@ static void hugetlbfs_put_super(struct super_block *sb)
         }
 }
 
+static inline int hugetlbfs_dec_free_inodes(struct hugetlbfs_sb_info *sbinfo)
+{
+        if (sbinfo->free_inodes >= 0) {
+                spin_lock(&sbinfo->stat_lock);
+                if (unlikely(!sbinfo->free_inodes)) {
+                        spin_unlock(&sbinfo->stat_lock);
+                        return 0;
+                }
+                sbinfo->free_inodes--;
+                spin_unlock(&sbinfo->stat_lock);
+        }
+
+        return 1;
+}
+
+static void hugetlbfs_inc_free_inodes(struct hugetlbfs_sb_info *sbinfo)
+{
+        if (sbinfo->free_inodes >= 0) {
+                spin_lock(&sbinfo->stat_lock);
+                sbinfo->free_inodes++;
+                spin_unlock(&sbinfo->stat_lock);
+        }
+}
+
+
 static kmem_cache_t *hugetlbfs_inode_cachep;
 
 static struct inode *hugetlbfs_alloc_inode(struct super_block *sb)
 {
+        struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(sb);
         struct hugetlbfs_inode_info *p;
 
+        if (unlikely(!hugetlbfs_dec_free_inodes(sbinfo)))
+                return NULL;
         p = kmem_cache_alloc(hugetlbfs_inode_cachep, SLAB_KERNEL);
-        if (!p)
+        if (unlikely(!p)) {
+                hugetlbfs_inc_free_inodes(sbinfo);
                 return NULL;
+        }
         return &p->vfs_inode;
 }
 
-static void init_once(void *foo, kmem_cache_t *cachep, unsigned long flags)
-{
-        struct hugetlbfs_inode_info *ei = (struct hugetlbfs_inode_info *)foo;
-
-        if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
-            SLAB_CTOR_CONSTRUCTOR)
-                inode_init_once(&ei->vfs_inode);
-}
-
 static void hugetlbfs_destroy_inode(struct inode *inode)
 {
+        hugetlbfs_inc_free_inodes(HUGETLBFS_SB(inode->i_sb));
         mpol_free_shared_policy(&HUGETLBFS_I(inode)->policy);
         kmem_cache_free(hugetlbfs_inode_cachep, HUGETLBFS_I(inode));
 }
@@ -565,6 +588,16 @@ static struct address_space_operations hugetlbfs_aops = {
         .set_page_dirty = hugetlbfs_set_page_dirty,
 };
 
+
+static void init_once(void *foo, kmem_cache_t *cachep, unsigned long flags)
+{
+        struct hugetlbfs_inode_info *ei = (struct hugetlbfs_inode_info *)foo;
+
+        if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
+            SLAB_CTOR_CONSTRUCTOR)
+                inode_init_once(&ei->vfs_inode);
+}
+
 struct file_operations hugetlbfs_file_operations = {
         .mmap                   = hugetlbfs_file_mmap,
         .fsync                  = simple_sync_file,
@@ -592,6 +625,7 @@ static struct super_operations hugetlbfs_ops = {
         .alloc_inode    = hugetlbfs_alloc_inode,
         .destroy_inode  = hugetlbfs_destroy_inode,
         .statfs         = hugetlbfs_statfs,
+        .delete_inode   = hugetlbfs_delete_inode,
         .drop_inode     = hugetlbfs_drop_inode,
         .put_super      = hugetlbfs_put_super,
 };
diff --git a/fs/inode.c b/fs/inode.c
index f80a79ff156b..d8d04bd72b59 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -475,7 +475,7 @@ static void prune_icache(int nr_to_scan)
  * This function is passed the number of inodes to scan, and it returns the
  * total number of remaining possibly-reclaimable inodes.
  */
-static int shrink_icache_memory(int nr, unsigned int gfp_mask)
+static int shrink_icache_memory(int nr, gfp_t gfp_mask)
 {
         if (nr) {
                 /*
@@ -1088,6 +1088,7 @@ static void generic_forget_inode(struct inode *inode)
         if (inode->i_data.nrpages)
                 truncate_inode_pages(&inode->i_data, 0);
         clear_inode(inode);
+        wake_up_inode(inode);
         destroy_inode(inode);
 }
 
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 7ae2c4fe506b..e4b516ac4989 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1606,7 +1606,7 @@ int journal_blocks_per_page(struct inode *inode)
  * Simple support for retrying memory allocations.  Introduced to help to
  * debug different VM deadlock avoidance strategies. 
  */
-void * __jbd_kmalloc (const char *where, size_t size, int flags, int retry)
+void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry)
 {
         return kmalloc(size, flags | (retry ? __GFP_NOFAIL : 0));
 }
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 49bbc2be3d72..13cb05bf6048 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -1621,7 +1621,7 @@ out:
  * while the data is part of a transaction.  Yes?
  */
 int journal_try_to_free_buffers(journal_t *journal, 
-                                struct page *page, int unused_gfp_mask)
+                                struct page *page, gfp_t unused_gfp_mask)
 {
         struct buffer_head *head;
         struct buffer_head *bh;
diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c
index 0f224384f176..8210ac16a368 100644
--- a/fs/jffs2/background.c
+++ b/fs/jffs2/background.c
@@ -15,6 +15,7 @@
 #include <linux/jffs2.h>
 #include <linux/mtd/mtd.h>
 #include <linux/completion.h>
+#include <linux/sched.h>
 #include "nodelist.h"
 
 
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 996d922e503e..316133c626b7 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -18,6 +18,8 @@
 #include <linux/mtd/mtd.h>
 #include <linux/crc32.h>
 #include <linux/mtd/nand.h>
+#include <linux/jiffies.h>
+
 #include "nodelist.h"
 
 /* For testing write failures */
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index eadf319bee22..68000a50ceb6 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -74,7 +74,7 @@
 static void dbAllocBits(struct bmap * bmp, struct dmap * dp, s64 blkno,
                         int nblocks);
 static void dbSplit(dmtree_t * tp, int leafno, int splitsz, int newval);
-static void dbBackSplit(dmtree_t * tp, int leafno);
+static int dbBackSplit(dmtree_t * tp, int leafno);
 static int dbJoin(dmtree_t * tp, int leafno, int newval);
 static void dbAdjTree(dmtree_t * tp, int leafno, int newval);
 static int dbAdjCtl(struct bmap * bmp, s64 blkno, int newval, int alloc,
@@ -305,7 +305,6 @@ int dbSync(struct inode *ipbmap)
         filemap_fdatawrite(ipbmap->i_mapping);
         filemap_fdatawait(ipbmap->i_mapping);
 
-        ipbmap->i_state |= I_DIRTY;
         diWriteSpecial(ipbmap, 0);
 
         return (0);
@@ -2467,7 +2466,9 @@ dbAdjCtl(struct bmap * bmp, s64 blkno, int newval, int alloc, int level)
                  * that it is at the front of a binary buddy system.
                  */
                 if (oldval == NOFREE) {
-                        dbBackSplit((dmtree_t *) dcp, leafno);
+                        rc = dbBackSplit((dmtree_t *) dcp, leafno);
+                        if (rc)
+                                return rc;
                         oldval = dcp->stree[ti];
                 }
                 dbSplit((dmtree_t *) dcp, leafno, dcp->budmin, newval);
@@ -2627,7 +2628,7 @@ static void dbSplit(dmtree_t * tp, int leafno, int splitsz, int newval)
  *
  * serialization: IREAD_LOCK(ipbmap) or IWRITE_LOCK(ipbmap) held on entry/exit;
  */
-static void dbBackSplit(dmtree_t * tp, int leafno)
+static int dbBackSplit(dmtree_t * tp, int leafno)
 {
         int budsz, bud, w, bsz, size;
         int cursz;
@@ -2662,7 +2663,10 @@ static void dbBackSplit(dmtree_t * tp, int leafno)
                  */
                 for (w = leafno, bsz = budsz;; bsz <<= 1,
                      w = (w < bud) ? w : bud) {
-                        assert(bsz < le32_to_cpu(tp->dmt_nleafs));
+                        if (bsz >= le32_to_cpu(tp->dmt_nleafs)) {
+                                jfs_err("JFS: block map error in dbBackSplit");
+                                return -EIO;
+                        }
 
                         /* determine the buddy.
                          */
@@ -2681,7 +2685,11 @@ static void dbBackSplit(dmtree_t * tp, int leafno)
                 }
         }
 
-        assert(leaf[leafno] == size);
+        if (leaf[leafno] != size) {
+                jfs_err("JFS: wrong leaf value in dbBackSplit");
+                return -EIO;
+        }
+        return 0;
 }
 
 
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 4021d46da7e3..28201b194f53 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -57,6 +57,12 @@
 #include "jfs_debug.h"
 
 /*
+ * __mark_inode_dirty expects inodes to be hashed.  Since we don't want
+ * special inodes in the fileset inode space, we hash them to a dummy head
+ */
+static HLIST_HEAD(aggregate_hash);
+
+/*
  * imap locks
  */
 /* iag free list lock */
@@ -491,6 +497,8 @@ struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
         /* release the page */
         release_metapage(mp);
 
+        hlist_add_head(&ip->i_hash, &aggregate_hash);
+
         return (ip);
 }
 
@@ -514,8 +522,6 @@ void diWriteSpecial(struct inode *ip, int secondary)
         ino_t inum = ip->i_ino;
         struct metapage *mp;
 
-        ip->i_state &= ~I_DIRTY;
-
         if (secondary)
                 address = addressPXD(&sbi->ait2) >> sbi->l2nbperpage;
         else
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 13d7e3f1feb4..8a53981f9f27 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -86,7 +86,7 @@ struct meta_anchor {
         atomic_t io_count;
         struct metapage *mp[MPS_PER_PAGE];
 };
-#define mp_anchor(page) ((struct meta_anchor *)page->private)
+#define mp_anchor(page) ((struct meta_anchor *)page_private(page))
 
 static inline struct metapage *page_to_mp(struct page *page, uint offset)
 {
@@ -108,7 +108,7 @@ static inline int insert_metapage(struct page *page, struct metapage *mp)
                 if (!a)
                         return -ENOMEM;
                 memset(a, 0, sizeof(struct meta_anchor));
-                page->private = (unsigned long)a;
+                set_page_private(page, (unsigned long)a);
                 SetPagePrivate(page);
                 kmap(page);
         }
@@ -136,7 +136,7 @@ static inline void remove_metapage(struct page *page, struct metapage *mp)
         a->mp[index] = NULL;
         if (--a->mp_count == 0) {
                 kfree(a);
-                page->private = 0;
+                set_page_private(page, 0);
                 ClearPagePrivate(page);
                 kunmap(page);
         }
@@ -156,13 +156,13 @@ static inline void dec_io(struct page *page, void (*handler) (struct page *))
 #else
 static inline struct metapage *page_to_mp(struct page *page, uint offset)
 {
-        return PagePrivate(page) ? (struct metapage *)page->private : NULL;
+        return PagePrivate(page) ? (struct metapage *)page_private(page) : NULL;
 }
 
 static inline int insert_metapage(struct page *page, struct metapage *mp)
 {
         if (mp) {
-                page->private = (unsigned long)mp;
+                set_page_private(page, (unsigned long)mp);
                 SetPagePrivate(page);
                 kmap(page);
         }
@@ -171,7 +171,7 @@ static inline int insert_metapage(struct page *page, struct metapage *mp)
 
 static inline void remove_metapage(struct page *page, struct metapage *mp)
 {
-        page->private = 0;
+        set_page_private(page, 0);
         ClearPagePrivate(page);
         kunmap(page);
 }
@@ -198,7 +198,7 @@ static void init_once(void *foo, kmem_cache_t *cachep, unsigned long flags)
         }
 }
 
-static inline struct metapage *alloc_metapage(unsigned int gfp_mask)
+static inline struct metapage *alloc_metapage(gfp_t gfp_mask)
 {
         return mempool_alloc(metapage_mempool, gfp_mask);
 }
@@ -395,6 +395,12 @@ static int metapage_writepage(struct page *page, struct writeback_control *wbc)
 
                 if (mp->nohomeok && !test_bit(META_forcewrite, &mp->flag)) {
                         redirty = 1;
+                        /*
+                         * Make sure this page isn't blocked indefinitely.
+                         * If the journal isn't undergoing I/O, push it
+                         */
+                        if (mp->log && !(mp->log->cflag & logGC_PAGEOUT))
+                                jfs_flush_journal(mp->log, 0);
                         continue;
                 }
 
@@ -534,7 +540,7 @@ add_failed:
         return -EIO;
 }
 
-static int metapage_releasepage(struct page *page, int gfp_mask)
+static int metapage_releasepage(struct page *page, gfp_t gfp_mask)
 {
         struct metapage *mp;
         int busy = 0;
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index 9b71ed2674fe..b660c93c92de 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -2396,7 +2396,6 @@ static void txUpdateMap(struct tblock * tblk)
          */
         if (tblk->xflag & COMMIT_CREATE) {
                 diUpdatePMap(ipimap, tblk->ino, FALSE, tblk);
-                ipimap->i_state |= I_DIRTY;
                 /* update persistent block allocation map
                  * for the allocation of inode extent;
                  */
@@ -2407,7 +2406,6 @@ static void txUpdateMap(struct tblock * tblk)
         } else if (tblk->xflag & COMMIT_DELETE) {
                 ip = tblk->u.ip;
                 diUpdatePMap(ipimap, ip->i_ino, TRUE, tblk);
-                ipimap->i_state |= I_DIRTY;
                 iput(ip);
         }
 }
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
index a7fe2f2b969f..e72f4ebb6e9c 100644
--- a/fs/jfs/jfs_xtree.c
+++ b/fs/jfs/jfs_xtree.c
@@ -3516,16 +3516,10 @@ s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
         /* process entries backward from last index */
         index = le16_to_cpu(p->header.nextindex) - 1;
 
-        if (p->header.flag & BT_INTERNAL)
-                goto getChild;
-
-        /*
-         *      leaf page
-         */
 
-        /* Since this is the rightmost leaf, and we may have already freed
-         * a page that was formerly to the right, let's make sure that the
-         * next pointer is zero.
+        /* Since this is the rightmost page at this level, and we may have
+         * already freed a page that was formerly to the right, let's make
+         * sure that the next pointer is zero.
          */
         if (p->header.next) {
                 if (log)
@@ -3539,6 +3533,12 @@ s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
                 p->header.next = 0;
         }
 
+        if (p->header.flag & BT_INTERNAL)
+                goto getChild;
+
+        /*
+         *      leaf page
+         */
         freed = 0;
 
         /* does region covered by leaf page precede Teof ? */
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 71bc34b96b2b..4226af3ea91b 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -442,6 +442,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
         inode->i_nlink = 1;
         inode->i_size = sb->s_bdev->bd_inode->i_size;
         inode->i_mapping->a_ops = &jfs_metapage_aops;
+        insert_inode_hash(inode);
         mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
 
         sbi->direct_inode = inode;
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index 82c77df81c5f..c4c8601096e0 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -173,11 +173,10 @@ nlm_bind_host(struct nlm_host *host)
 
         /* If we've already created an RPC client, check whether
          * RPC rebind is required
-         * Note: why keep rebinding if we're on a tcp connection?
          */
         if ((clnt = host->h_rpcclnt) != NULL) {
                 xprt = clnt->cl_xprt;
-                if (!xprt->stream && time_after_eq(jiffies, host->h_nextrebind)) {
+                if (time_after_eq(jiffies, host->h_nextrebind)) {
                         clnt->cl_port = 0;
                         host->h_nextrebind = jiffies + NLM_HOST_REBIND;
                         dprintk("lockd: next rebind in %ld jiffies\n",
@@ -189,7 +188,6 @@ nlm_bind_host(struct nlm_host *host)
                         goto forgetit;
 
                 xprt_set_timeout(&xprt->timeout, 5, nlmsvc_timeout);
-                xprt->nocong = 1;       /* No congestion control for NLM */
                 xprt->resvport = 1;     /* NLM requires a reserved port */
 
                 /* Existing NLM servers accept AUTH_UNIX only */
diff --git a/fs/locks.c b/fs/locks.c
index f7daa5f48949..a1e8b2248014 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -316,21 +316,22 @@ static int flock_to_posix_lock(struct file *filp, struct file_lock *fl,
         /* POSIX-1996 leaves the case l->l_len < 0 undefined;
            POSIX-2001 defines it. */
         start += l->l_start;
-        end = start + l->l_len - 1;
-        if (l->l_len < 0) {
+        if (start < 0)
+                return -EINVAL;
+        fl->fl_end = OFFSET_MAX;
+        if (l->l_len > 0) {
+                end = start + l->l_len - 1;
+                fl->fl_end = end;
+        } else if (l->l_len < 0) {
                 end = start - 1;
+                fl->fl_end = end;
                 start += l->l_len;
+                if (start < 0)
+                        return -EINVAL;
         }
-
-        if (start < 0)
-                return -EINVAL;
-        if (l->l_len > 0 && end < 0)
-                return -EOVERFLOW;
-
         fl->fl_start = start;   /* we record the absolute position */
-        fl->fl_end = end;
-        if (l->l_len == 0)
-                fl->fl_end = OFFSET_MAX;
+        if (fl->fl_end < fl->fl_start)
+                return -EOVERFLOW;
         
         fl->fl_owner = current->files;
         fl->fl_pid = current->tgid;
@@ -362,14 +363,21 @@ static int flock64_to_posix_lock(struct file *filp, struct file_lock *fl,
                 return -EINVAL;
         }
 
-        if (((start += l->l_start) < 0) || (l->l_len < 0))
+        start += l->l_start;
+        if (start < 0)
                 return -EINVAL;
-        fl->fl_end = start + l->l_len - 1;
-        if (l->l_len > 0 && fl->fl_end < 0)
-                return -EOVERFLOW;
+        fl->fl_end = OFFSET_MAX;
+        if (l->l_len > 0) {
+                fl->fl_end = start + l->l_len - 1;
+        } else if (l->l_len < 0) {
+                fl->fl_end = start - 1;
+                start += l->l_len;
+                if (start < 0)
+                        return -EINVAL;
+        }
         fl->fl_start = start;   /* we record the absolute position */
-        if (l->l_len == 0)
-                fl->fl_end = OFFSET_MAX;
+        if (fl->fl_end < fl->fl_start)
+                return -EOVERFLOW;
         
         fl->fl_owner = current->files;
         fl->fl_pid = current->tgid;
@@ -829,12 +837,16 @@ static int __posix_lock_file(struct inode *inode, struct file_lock *request)
                 /* Detect adjacent or overlapping regions (if same lock type)
                  */
                 if (request->fl_type == fl->fl_type) {
+                        /* In all comparisons of start vs end, use
+                         * "start - 1" rather than "end + 1". If end
+                         * is OFFSET_MAX, end + 1 will become negative.
+                         */
                         if (fl->fl_end < request->fl_start - 1)
                                 goto next_lock;
                         /* If the next lock in the list has entirely bigger
                          * addresses than the new one, insert the lock here.
                          */
-                        if (fl->fl_start > request->fl_end + 1)
+                        if (fl->fl_start - 1 > request->fl_end)
                                 break;
 
                         /* If we come here, the new and old lock are of the
diff --git a/fs/mbcache.c b/fs/mbcache.c
index b002a088857d..298997f17475 100644
--- a/fs/mbcache.c
+++ b/fs/mbcache.c
@@ -116,7 +116,7 @@ mb_cache_indexes(struct mb_cache *cache)
  * What the mbcache registers as to get shrunk dynamically.
  */
 
-static int mb_cache_shrink_fn(int nr_to_scan, unsigned int gfp_mask);
+static int mb_cache_shrink_fn(int nr_to_scan, gfp_t gfp_mask);
 
 
 static inline int
@@ -140,7 +140,7 @@ __mb_cache_entry_unhash(struct mb_cache_entry *ce)
 
 
 static inline void
-__mb_cache_entry_forget(struct mb_cache_entry *ce, int gfp_mask)
+__mb_cache_entry_forget(struct mb_cache_entry *ce, gfp_t gfp_mask)
 {
         struct mb_cache *cache = ce->e_cache;
 
@@ -193,7 +193,7 @@ forget:
  * Returns the number of objects which are present in the cache.
  */
 static int
-mb_cache_shrink_fn(int nr_to_scan, unsigned int gfp_mask)
+mb_cache_shrink_fn(int nr_to_scan, gfp_t gfp_mask)
 {
         LIST_HEAD(free_list);
         struct list_head *l, *ltmp;
diff --git a/fs/msdos/namei.c b/fs/msdos/namei.c
index 154f511c7245..626a367bcd81 100644
--- a/fs/msdos/namei.c
+++ b/fs/msdos/namei.c
@@ -454,10 +454,10 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
 {
         struct buffer_head *dotdot_bh;
         struct msdos_dir_entry *dotdot_de;
-        loff_t dotdot_i_pos;
         struct inode *old_inode, *new_inode;
         struct fat_slot_info old_sinfo, sinfo;
         struct timespec ts;
+        loff_t dotdot_i_pos, new_i_pos;
         int err, old_attrs, is_dir, update_dotdot, corrupt = 0;
 
         old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
@@ -516,28 +516,24 @@ static int do_msdos_rename(struct inode *old_dir, unsigned char *old_name,
         if (new_inode) {
                 if (err)
                         goto out;
-                if (MSDOS_I(new_inode)->i_pos != sinfo.i_pos) {
-                        /* WTF??? Cry and fail. */
-                        printk(KERN_WARNING "msdos_rename: fs corrupted\n");
-                        goto out;
-                }
-
                 if (is_dir) {
                         err = fat_dir_empty(new_inode);
                         if (err)
                                 goto out;
                 }
+                new_i_pos = MSDOS_I(new_inode)->i_pos;
                 fat_detach(new_inode);
         } else {
                 err = msdos_add_entry(new_dir, new_name, is_dir, is_hid, 0,
                                       &ts, &sinfo);
                 if (err)
                         goto out;
+                new_i_pos = sinfo.i_pos;
         }
         new_dir->i_version++;
 
         fat_detach(old_inode);
-        fat_attach(old_inode, sinfo.i_pos);
+        fat_attach(old_inode, new_i_pos);
         if (is_hid)
                 MSDOS_I(old_inode)->i_attrs |= ATTR_HIDDEN;
         else
@@ -604,7 +600,7 @@ error_inode:
         fat_attach(old_inode, old_sinfo.i_pos);
         MSDOS_I(old_inode)->i_attrs = old_attrs;
         if (new_inode) {
-                fat_attach(new_inode, sinfo.i_pos);
+                fat_attach(new_inode, new_i_pos);
                 if (corrupt)
                         corrupt |= fat_sync_inode(new_inode);
         } else {
diff --git a/fs/namei.c b/fs/namei.c
index aa62dbda93ac..c5769c4fcab1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -28,6 +28,7 @@
 #include <linux/syscalls.h>
 #include <linux/mount.h>
 #include <linux/audit.h>
+#include <linux/file.h>
 #include <asm/namei.h>
 #include <asm/uaccess.h>
 
@@ -317,6 +318,18 @@ void path_release_on_umount(struct nameidata *nd)
         mntput_no_expire(nd->mnt);
 }
 
+/**
+ * release_open_intent - free up open intent resources
+ * @nd: pointer to nameidata
+ */
+void release_open_intent(struct nameidata *nd)
+{
+        if (nd->intent.open.file->f_dentry == NULL)
+                put_filp(nd->intent.open.file);
+        else
+                fput(nd->intent.open.file);
+}
+
 /*
  * Internal lookup() using the new generic dcache.
  * SMP-safe
@@ -750,6 +763,7 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
                 struct qstr this;
                 unsigned int c;
 
+                nd->flags |= LOOKUP_CONTINUE;
                 err = exec_permission_lite(inode, nd);
                 if (err == -EAGAIN) { 
                         err = permission(inode, MAY_EXEC, nd);
@@ -802,7 +816,6 @@ static fastcall int __link_path_walk(const char * name, struct nameidata *nd)
                         if (err < 0)
                                 break;
                 }
-                nd->flags |= LOOKUP_CONTINUE;
                 /* This does the actual lookups.. */
                 err = do_lookup(nd, &this, &next);
                 if (err)
@@ -1052,6 +1065,70 @@ out:
         return retval;
 }
 
+static int __path_lookup_intent_open(const char *name, unsigned int lookup_flags,
+                struct nameidata *nd, int open_flags, int create_mode)
+{
+        struct file *filp = get_empty_filp();
+        int err;
+
+        if (filp == NULL)
+                return -ENFILE;
+        nd->intent.open.file = filp;
+        nd->intent.open.flags = open_flags;
+        nd->intent.open.create_mode = create_mode;
+        err = path_lookup(name, lookup_flags|LOOKUP_OPEN, nd);
+        if (IS_ERR(nd->intent.open.file)) {
+                if (err == 0) {
+                        err = PTR_ERR(nd->intent.open.file);
+                        path_release(nd);
+                }
+        } else if (err != 0)
+                release_open_intent(nd);
+        return err;
+}
+
+/**
+ * path_lookup_open - lookup a file path with open intent
+ * @name: pointer to file name
+ * @lookup_flags: lookup intent flags
+ * @nd: pointer to nameidata
+ * @open_flags: open intent flags
+ */
+int path_lookup_open(const char *name, unsigned int lookup_flags,
+                struct nameidata *nd, int open_flags)
+{
+        return __path_lookup_intent_open(name, lookup_flags, nd,
+                        open_flags, 0);
+}
+
+/**
+ * path_lookup_create - lookup a file path with open + create intent
+ * @name: pointer to file name
+ * @lookup_flags: lookup intent flags
+ * @nd: pointer to nameidata
+ * @open_flags: open intent flags
+ * @create_mode: create intent flags
+ */
+int path_lookup_create(const char *name, unsigned int lookup_flags,
+                struct nameidata *nd, int open_flags, int create_mode)
+{
+        return __path_lookup_intent_open(name, lookup_flags|LOOKUP_CREATE, nd,
+                        open_flags, create_mode);
+}
+
+int __user_path_lookup_open(const char __user *name, unsigned int lookup_flags,
+                struct nameidata *nd, int open_flags)
+{
+        char *tmp = getname(name);
+        int err = PTR_ERR(tmp);
+
+        if (!IS_ERR(tmp)) {
+                err = __path_lookup_intent_open(tmp, lookup_flags, nd, open_flags, 0);
+                putname(tmp);
+        }
+        return err;
+}
+
 /*
  * Restricted form of lookup. Doesn't follow links, single-component only,
  * needs parent already locked. Doesn't follow mounts.
@@ -1234,9 +1311,6 @@ static inline int may_create(struct inode *dir, struct dentry *child,
 }
 
 /* 
- * Special case: O_CREAT|O_EXCL implies O_NOFOLLOW for security
- * reasons.
- *
  * O_DIRECTORY translates into forcing a directory lookup.
  */
 static inline int lookup_flags(unsigned int f)
@@ -1246,9 +1320,6 @@ static inline int lookup_flags(unsigned int f)
         if (f & O_NOFOLLOW)
                 retval &= ~LOOKUP_FOLLOW;
         
-        if ((f & (O_CREAT|O_EXCL)) == (O_CREAT|O_EXCL))
-                retval &= ~LOOKUP_FOLLOW;
-        
         if (f & O_DIRECTORY)
                 retval |= LOOKUP_DIRECTORY;
 
@@ -1416,27 +1487,27 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
  */
 int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
 {
-        int acc_mode, error = 0;
+        int acc_mode, error;
         struct path path;
         struct dentry *dir;
         int count = 0;
 
         acc_mode = ACC_MODE(flag);
 
+        /* O_TRUNC implies we need access checks for write permissions */
+        if (flag & O_TRUNC)
+                acc_mode |= MAY_WRITE;
+
         /* Allow the LSM permission hook to distinguish append 
            access from general write access. */
         if (flag & O_APPEND)
                 acc_mode |= MAY_APPEND;
 
-        /* Fill in the open() intent data */
-        nd->intent.open.flags = flag;
-        nd->intent.open.create_mode = mode;
-
         /*
          * The simplest case - just a plain lookup.
          */
         if (!(flag & O_CREAT)) {
-                error = path_lookup(pathname, lookup_flags(flag)|LOOKUP_OPEN, nd);
+                error = path_lookup_open(pathname, lookup_flags(flag), nd, flag);
                 if (error)
                         return error;
                 goto ok;
@@ -1445,7 +1516,7 @@ int open_namei(const char * pathname, int flag, int mode, struct nameidata *nd)
         /*
          * Create - we need to know the parent.
          */
-        error = path_lookup(pathname, LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE, nd);
+        error = path_lookup_create(pathname, LOOKUP_PARENT, nd, flag, mode);
         if (error)
                 return error;
 
@@ -1520,6 +1591,8 @@ ok:
 exit_dput:
         dput_path(&path, nd);
 exit:
+        if (!IS_ERR(nd->intent.open.file))
+                release_open_intent(nd);
         path_release(nd);
         return error;
 
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 4a36839f0bbd..44135af9894c 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -142,7 +142,7 @@ static void nfs_msync_inode(struct inode *inode)
 /*
  * Basic procedure for returning a delegation to the server
  */
-int nfs_inode_return_delegation(struct inode *inode)
+int __nfs_inode_return_delegation(struct inode *inode)
 {
         struct nfs4_client *clp = NFS_SERVER(inode)->nfs4_state;
         struct nfs_inode *nfsi = NFS_I(inode);
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index 3f6c45a29d6a..8017846b561f 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -25,7 +25,7 @@ struct nfs_delegation {
 
 int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
 void nfs_inode_reclaim_delegation(struct inode *inode, struct rpc_cred *cred, struct nfs_openres *res);
-int nfs_inode_return_delegation(struct inode *inode);
+int __nfs_inode_return_delegation(struct inode *inode);
 int nfs_async_inode_return_delegation(struct inode *inode, const nfs4_stateid *stateid);
 
 struct inode *nfs_delegation_find_inode(struct nfs4_client *clp, const struct nfs_fh *fhandle);
@@ -47,11 +47,25 @@ static inline int nfs_have_delegation(struct inode *inode, int flags)
                 return 1;
         return 0;
 }
+
+static inline int nfs_inode_return_delegation(struct inode *inode)
+{
+        int err = 0;
+
+        if (NFS_I(inode)->delegation != NULL)
+                err = __nfs_inode_return_delegation(inode);
+        return err;
+}
 #else
 static inline int nfs_have_delegation(struct inode *inode, int flags)
 {
         return 0;
 }
+
+static inline int nfs_inode_return_delegation(struct inode *inode)
+{
+        return 0;
+}
 #endif
 
 #endif
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 2df639f143e8..8272ed3fc707 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -532,6 +532,7 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
         my_entry.eof = 0;
         my_entry.fh = &fh;
         my_entry.fattr = &fattr;
+        nfs_fattr_init(&fattr);
         desc->entry = &my_entry;
 
         while(!desc->entry->eof) {
@@ -565,8 +566,6 @@ static int nfs_readdir(struct file *filp, void *dirent, filldir_t filldir)
                 }
         }
         unlock_kernel();
-        if (desc->error < 0)
-                return desc->error;
         if (res < 0)
                 return res;
         return 0;
@@ -803,6 +802,7 @@ static int nfs_dentry_delete(struct dentry *dentry)
  */
 static void nfs_dentry_iput(struct dentry *dentry, struct inode *inode)
 {
+        nfs_inode_return_delegation(inode);
         if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
                 lock_kernel();
                 inode->i_nlink--;
@@ -853,12 +853,6 @@ static struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, stru
         dentry->d_op = NFS_PROTO(dir)->dentry_ops;
 
         lock_kernel();
-        /* Revalidate parent directory attribute cache */
-        error = nfs_revalidate_inode(NFS_SERVER(dir), dir);
-        if (error < 0) {
-                res = ERR_PTR(error);
-                goto out_unlock;
-        }
 
         /* If we're doing an exclusive create, optimize away the lookup */
         if (nfs_is_exclusive_create(dir, nd))
@@ -916,7 +910,6 @@ static int is_atomic_open(struct inode *dir, struct nameidata *nd)
 static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
         struct dentry *res = NULL;
-        struct inode *inode = NULL;
         int error;
 
         /* Check that we are indeed trying to open this file */
@@ -930,8 +923,10 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
         dentry->d_op = NFS_PROTO(dir)->dentry_ops;
 
         /* Let vfs_create() deal with O_EXCL */
-        if (nd->intent.open.flags & O_EXCL)
-                goto no_entry;
+        if (nd->intent.open.flags & O_EXCL) {
+                d_add(dentry, NULL);
+                goto out;
+        }
 
         /* Open the file on the server */
         lock_kernel();
@@ -945,32 +940,30 @@ static struct dentry *nfs_atomic_lookup(struct inode *dir, struct dentry *dentry
 
         if (nd->intent.open.flags & O_CREAT) {
                 nfs_begin_data_update(dir);
-                inode = nfs4_atomic_open(dir, dentry, nd);
+                res = nfs4_atomic_open(dir, dentry, nd);
                 nfs_end_data_update(dir);
         } else
-                inode = nfs4_atomic_open(dir, dentry, nd);
+                res = nfs4_atomic_open(dir, dentry, nd);
         unlock_kernel();
-        if (IS_ERR(inode)) {
-                error = PTR_ERR(inode);
+        if (IS_ERR(res)) {
+                error = PTR_ERR(res);
                 switch (error) {
                         /* Make a negative dentry */
                         case -ENOENT:
-                                inode = NULL;
-                                break;
+                                res = NULL;
+                                goto out;
                         /* This turned out not to be a regular file */
+                        case -EISDIR:
+                        case -ENOTDIR:
+                                goto no_open;
                         case -ELOOP:
                                 if (!(nd->intent.open.flags & O_NOFOLLOW))
                                         goto no_open;
-                        /* case -EISDIR: */
                         /* case -EINVAL: */
                         default:
-                                res = ERR_PTR(error);
                                 goto out;
                 }
-        }
-no_entry:
-        res = d_add_unique(dentry, inode);
-        if (res != NULL)
+        } else if (res != NULL)
                 dentry = res;
         nfs_renew_times(dentry);
         nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
@@ -1014,7 +1007,7 @@ static int nfs_open_revalidate(struct dentry *dentry, struct nameidata *nd)
          */
         lock_kernel();
         verifier = nfs_save_change_attribute(dir);
-        ret = nfs4_open_revalidate(dir, dentry, openflags);
+        ret = nfs4_open_revalidate(dir, dentry, openflags, nd);
         if (!ret)
                 nfs_set_verifier(dentry, verifier);
         unlock_kernel();
@@ -1137,7 +1130,7 @@ static int nfs_create(struct inode *dir, struct dentry *dentry, int mode,
 
         lock_kernel();
         nfs_begin_data_update(dir);
-        error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags);
+        error = NFS_PROTO(dir)->create(dir, dentry, &attr, open_flags, nd);
         nfs_end_data_update(dir);
         if (error != 0)
                 goto out_err;
@@ -1332,6 +1325,7 @@ static int nfs_safe_remove(struct dentry *dentry)
 
         nfs_begin_data_update(dir);
         if (inode != NULL) {
+                nfs_inode_return_delegation(inode);
                 nfs_begin_data_update(inode);
                 error = NFS_PROTO(dir)->remove(dir, &dentry->d_name);
                 /* The VFS may want to delete this inode */
@@ -1438,17 +1432,14 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
                 old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
                 dentry->d_parent->d_name.name, dentry->d_name.name);
 
-        /*
-         * Drop the dentry in advance to force a new lookup.
-         * Since nfs_proc_link doesn't return a file handle,
-         * we can't use the existing dentry.
-         */
         lock_kernel();
-        d_drop(dentry);
-
         nfs_begin_data_update(dir);
         nfs_begin_data_update(inode);
         error = NFS_PROTO(dir)->link(inode, dir, &dentry->d_name);
+        if (error == 0) {
+                atomic_inc(&inode->i_count);
+                d_instantiate(dentry, inode);
+        }
         nfs_end_data_update(inode);
         nfs_end_data_update(dir);
         unlock_kernel();
@@ -1512,9 +1503,11 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
          */
         if (!new_inode)
                 goto go_ahead;
-        if (S_ISDIR(new_inode->i_mode))
-                goto out;
-        else if (atomic_read(&new_dentry->d_count) > 2) {
+        if (S_ISDIR(new_inode->i_mode)) {
+                error = -EISDIR;
+                if (!S_ISDIR(old_inode->i_mode))
+                        goto out;
+        } else if (atomic_read(&new_dentry->d_count) > 2) {
                 int err;
                 /* copy the target dentry's name */
                 dentry = d_alloc(new_dentry->d_parent,
@@ -1539,7 +1532,8 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 #endif
                         goto out;
                 }
-        }
+        } else
+                new_inode->i_nlink--;
 
 go_ahead:
         /*
@@ -1549,6 +1543,7 @@ go_ahead:
                 nfs_wb_all(old_inode);
                 shrink_dcache_parent(old_dentry);
         }
+        nfs_inode_return_delegation(old_inode);
 
         if (new_inode)
                 d_delete(new_dentry);
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 6bdcfa95de94..57d3e77d97ee 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -205,8 +205,8 @@ nfs_file_flush(struct file *file)
         if (!status) {
                 status = ctx->error;
                 ctx->error = 0;
-                if (!status && !nfs_have_delegation(inode, FMODE_READ))
-                        __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+                if (!status)
+                        nfs_revalidate_inode(NFS_SERVER(inode), inode);
         }
         unlock_kernel();
         return status;
@@ -376,22 +376,31 @@ out_swapfile:
 
 static int do_getlk(struct file *filp, int cmd, struct file_lock *fl)
 {
+        struct file_lock *cfl;
         struct inode *inode = filp->f_mapping->host;
         int status = 0;
 
         lock_kernel();
-        /* Use local locking if mounted with "-onolock" */
-        if (!(NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM))
-                status = NFS_PROTO(inode)->lock(filp, cmd, fl);
-        else {
-                struct file_lock *cfl = posix_test_lock(filp, fl);
-
-                fl->fl_type = F_UNLCK;
-                if (cfl != NULL)
-                        memcpy(fl, cfl, sizeof(*fl));
+        /* Try local locking first */
+        cfl = posix_test_lock(filp, fl);
+        if (cfl != NULL) {
+                locks_copy_lock(fl, cfl);
+                goto out;
         }
+
+        if (nfs_have_delegation(inode, FMODE_READ))
+                goto out_noconflict;
+
+        if (NFS_SERVER(inode)->flags & NFS_MOUNT_NONLM)
+                goto out_noconflict;
+
+        status = NFS_PROTO(inode)->lock(filp, cmd, fl);
+out:
         unlock_kernel();
         return status;
+out_noconflict:
+        fl->fl_type = F_UNLCK;
+        goto out;
 }
 
 static int do_vfs_lock(struct file *file, struct file_lock *fl)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index d4eadeea128e..fc0f12ba89cc 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -358,6 +358,35 @@ out_no_root:
         return no_root_error;
 }
 
+static void nfs_init_timeout_values(struct rpc_timeout *to, int proto, unsigned int timeo, unsigned int retrans)
+{
+        to->to_initval = timeo * HZ / 10;
+        to->to_retries = retrans;
+        if (!to->to_retries)
+                to->to_retries = 2;
+
+        switch (proto) {
+        case IPPROTO_TCP:
+                if (!to->to_initval)
+                        to->to_initval = 60 * HZ;
+                if (to->to_initval > NFS_MAX_TCP_TIMEOUT)
+                        to->to_initval = NFS_MAX_TCP_TIMEOUT;
+                to->to_increment = to->to_initval;
+                to->to_maxval = to->to_initval + (to->to_increment * to->to_retries);
+                to->to_exponential = 0;
+                break;
+        case IPPROTO_UDP:
+        default:
+                if (!to->to_initval)
+                        to->to_initval = 11 * HZ / 10;
+                if (to->to_initval > NFS_MAX_UDP_TIMEOUT)
+                        to->to_initval = NFS_MAX_UDP_TIMEOUT;
+                to->to_maxval = NFS_MAX_UDP_TIMEOUT;
+                to->to_exponential = 1;
+                break;
+        }
+}
+
 /*
  * Create an RPC client handle.
  */
@@ -367,22 +396,12 @@ nfs_create_client(struct nfs_server *server, const struct nfs_mount_data *data)
         struct rpc_timeout      timeparms;
         struct rpc_xprt         *xprt = NULL;
         struct rpc_clnt         *clnt = NULL;
-        int                     tcp   = (data->flags & NFS_MOUNT_TCP);
+        int                     proto = (data->flags & NFS_MOUNT_TCP) ? IPPROTO_TCP : IPPROTO_UDP;
 
-        /* Initialize timeout values */
-        timeparms.to_initval = data->timeo * HZ / 10;
-        timeparms.to_retries = data->retrans;
-        timeparms.to_maxval  = tcp ? RPC_MAX_TCP_TIMEOUT : RPC_MAX_UDP_TIMEOUT;
-        timeparms.to_exponential = 1;
-
-        if (!timeparms.to_initval)
-                timeparms.to_initval = (tcp ? 600 : 11) * HZ / 10;
-        if (!timeparms.to_retries)
-                timeparms.to_retries = 5;
+        nfs_init_timeout_values(&timeparms, proto, data->timeo, data->retrans);
 
         /* create transport and client */
-        xprt = xprt_create_proto(tcp ? IPPROTO_TCP : IPPROTO_UDP,
-                                 &server->addr, &timeparms);
+        xprt = xprt_create_proto(proto, &server->addr, &timeparms);
         if (IS_ERR(xprt)) {
                 dprintk("%s: cannot create RPC transport. Error = %ld\n",
                                 __FUNCTION__, PTR_ERR(xprt));
@@ -576,7 +595,6 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
                 { NFS_MOUNT_SOFT, ",soft", ",hard" },
                 { NFS_MOUNT_INTR, ",intr", "" },
                 { NFS_MOUNT_POSIX, ",posix", "" },
-                { NFS_MOUNT_TCP, ",tcp", ",udp" },
                 { NFS_MOUNT_NOCTO, ",nocto", "" },
                 { NFS_MOUNT_NOAC, ",noac", "" },
                 { NFS_MOUNT_NONLM, ",nolock", ",lock" },
@@ -585,6 +603,8 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
         };
         struct proc_nfs_info *nfs_infop;
         struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+        char buf[12];
+        char *proto;
 
         seq_printf(m, ",v%d", nfss->rpc_ops->version);
         seq_printf(m, ",rsize=%d", nfss->rsize);
@@ -603,6 +623,18 @@ static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
                 else
                         seq_puts(m, nfs_infop->nostr);
         }
+        switch (nfss->client->cl_xprt->prot) {
+                case IPPROTO_TCP:
+                        proto = "tcp";
+                        break;
+                case IPPROTO_UDP:
+                        proto = "udp";
+                        break;
+                default:
+                        snprintf(buf, sizeof(buf), "%u", nfss->client->cl_xprt->prot);
+                        proto = buf;
+        }
+        seq_printf(m, ",proto=%s", proto);
         seq_puts(m, ",addr=");
         seq_escape(m, nfss->hostname, " \t\n\\");
         return 0;
@@ -753,7 +785,8 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
                 else
                         init_special_inode(inode, inode->i_mode, fattr->rdev);
 
-                nfsi->read_cache_jiffies = fattr->timestamp;
+                nfsi->read_cache_jiffies = fattr->time_start;
+                nfsi->last_updated = jiffies;
                 inode->i_atime = fattr->atime;
                 inode->i_mtime = fattr->mtime;
                 inode->i_ctime = fattr->ctime;
@@ -821,6 +854,11 @@ nfs_setattr(struct dentry *dentry, struct iattr *attr)
                         filemap_fdatawait(inode->i_mapping);
                 nfs_wb_all(inode);
         }
+        /*
+         * Return any delegations if we're going to change ACLs
+         */
+        if ((attr->ia_valid & (ATTR_MODE|ATTR_UID|ATTR_GID)) != 0)
+                nfs_inode_return_delegation(inode);
         error = NFS_PROTO(inode)->setattr(dentry, &fattr, attr);
         if (error == 0)
                 nfs_refresh_inode(inode, &fattr);
@@ -1019,15 +1057,11 @@ int nfs_open(struct inode *inode, struct file *filp)
         ctx->mode = filp->f_mode;
         nfs_file_set_open_context(filp, ctx);
         put_nfs_open_context(ctx);
-        if ((filp->f_mode & FMODE_WRITE) != 0)
-                nfs_begin_data_update(inode);
         return 0;
 }
 
 int nfs_release(struct inode *inode, struct file *filp)
 {
-        if ((filp->f_mode & FMODE_WRITE) != 0)
-                nfs_end_data_update(inode);
         nfs_file_clear_open_context(filp);
         return 0;
 }
@@ -1083,14 +1117,15 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
                 goto out;
         }
 
+        spin_lock(&inode->i_lock);
         status = nfs_update_inode(inode, &fattr, verifier);
         if (status) {
+                spin_unlock(&inode->i_lock);
                 dfprintk(PAGECACHE, "nfs_revalidate_inode: (%s/%Ld) refresh failed, error=%d\n",
                          inode->i_sb->s_id,
                          (long long)NFS_FILEID(inode), status);
                 goto out;
         }
-        spin_lock(&inode->i_lock);
         cache_validity = nfsi->cache_validity;
         nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
 
@@ -1098,7 +1133,7 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
          * We may need to keep the attributes marked as invalid if
          * we raced with nfs_end_attr_update().
          */
-        if (verifier == nfsi->cache_change_attribute)
+        if (time_after_eq(verifier, nfsi->cache_change_attribute))
                 nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
         spin_unlock(&inode->i_lock);
 
@@ -1165,7 +1200,7 @@ void nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
                 if (S_ISDIR(inode->i_mode)) {
                         memset(nfsi->cookieverf, 0, sizeof(nfsi->cookieverf));
                         /* This ensures we revalidate child dentries */
-                        nfsi->cache_change_attribute++;
+                        nfsi->cache_change_attribute = jiffies;
                 }
                 spin_unlock(&inode->i_lock);
 
@@ -1197,20 +1232,19 @@ void nfs_end_data_update(struct inode *inode)
         struct nfs_inode *nfsi = NFS_I(inode);
 
         if (!nfs_have_delegation(inode, FMODE_READ)) {
-                /* Mark the attribute cache for revalidation */
-                spin_lock(&inode->i_lock);
-                nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
-                /* Directories and symlinks: invalidate page cache too */
-                if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode))
+                /* Directories and symlinks: invalidate page cache */
+                if (S_ISDIR(inode->i_mode) || S_ISLNK(inode->i_mode)) {
+                        spin_lock(&inode->i_lock);
                         nfsi->cache_validity |= NFS_INO_INVALID_DATA;
-                spin_unlock(&inode->i_lock);
+                        spin_unlock(&inode->i_lock);
+                }
         }
-        nfsi->cache_change_attribute ++;
+        nfsi->cache_change_attribute = jiffies;
         atomic_dec(&nfsi->data_updates);
 }
 
 /**
- * nfs_refresh_inode - verify consistency of the inode attribute cache
+ * nfs_check_inode_attributes - verify consistency of the inode attribute cache
  * @inode - pointer to inode
  * @fattr - updated attributes
  *
@@ -1218,13 +1252,12 @@ void nfs_end_data_update(struct inode *inode)
  * so that fattr carries weak cache consistency data, then it may
  * also update the ctime/mtime/change_attribute.
  */
-int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
+static int nfs_check_inode_attributes(struct inode *inode, struct nfs_fattr *fattr)
 {
         struct nfs_inode *nfsi = NFS_I(inode);
         loff_t cur_size, new_isize;
         int data_unstable;
 
-        spin_lock(&inode->i_lock);
 
         /* Are we in the process of updating data on the server? */
         data_unstable = nfs_caches_unstable(inode);
@@ -1241,14 +1274,12 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
         }
 
         if ((fattr->valid & NFS_ATTR_FATTR) == 0) {
-                spin_unlock(&inode->i_lock);
                 return 0;
         }
 
         /* Has the inode gone and changed behind our back? */
         if (nfsi->fileid != fattr->fileid
                         || (inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
-                spin_unlock(&inode->i_lock);
                 return -EIO;
         }
 
@@ -1288,11 +1319,67 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
         if (!timespec_equal(&inode->i_atime, &fattr->atime))
                 nfsi->cache_validity |= NFS_INO_INVALID_ATIME;
 
-        nfsi->read_cache_jiffies = fattr->timestamp;
-        spin_unlock(&inode->i_lock);
+        nfsi->read_cache_jiffies = fattr->time_start;
         return 0;
 }
 
+/**
+ * nfs_refresh_inode - try to update the inode attribute cache
+ * @inode - pointer to inode
+ * @fattr - updated attributes
+ *
+ * Check that an RPC call that returned attributes has not overlapped with
+ * other recent updates of the inode metadata, then decide whether it is
+ * safe to do a full update of the inode attributes, or whether just to
+ * call nfs_check_inode_attributes.
+ */
+int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
+{
+        struct nfs_inode *nfsi = NFS_I(inode);
+        int status;
+
+        if ((fattr->valid & NFS_ATTR_FATTR) == 0)
+                return 0;
+        spin_lock(&inode->i_lock);
+        nfsi->cache_validity &= ~NFS_INO_REVAL_PAGECACHE;
+        if (nfs_verify_change_attribute(inode, fattr->time_start))
+                nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME);
+        if (time_after(fattr->time_start, nfsi->last_updated))
+                status = nfs_update_inode(inode, fattr, fattr->time_start);
+        else
+                status = nfs_check_inode_attributes(inode, fattr);
+
+        spin_unlock(&inode->i_lock);
+        return status;
+}
+
+/**
+ * nfs_post_op_update_inode - try to update the inode attribute cache
+ * @inode - pointer to inode
+ * @fattr - updated attributes
+ *
+ * After an operation that has changed the inode metadata, mark the
+ * attribute cache as being invalid, then try to update it.
+ */
+int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr)
+{
+        struct nfs_inode *nfsi = NFS_I(inode);
+        int status = 0;
+
+        spin_lock(&inode->i_lock);
+        if (unlikely((fattr->valid & NFS_ATTR_FATTR) == 0)) {
+                nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
+                goto out;
+        }
+        status = nfs_update_inode(inode, fattr, fattr->time_start);
+        if (time_after_eq(fattr->time_start, nfsi->cache_change_attribute))
+                nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ATIME|NFS_INO_REVAL_PAGECACHE);
+        nfsi->cache_change_attribute = jiffies;
+out:
+        spin_unlock(&inode->i_lock);
+        return status;
+}
+
 /*
  * Many nfs protocol calls return the new file attributes after
  * an operation.  Here we update the inode to reflect the state
@@ -1328,20 +1415,17 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
                 goto out_err;
         }
 
-        spin_lock(&inode->i_lock);
-
         /*
          * Make sure the inode's type hasn't changed.
          */
-        if ((inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT)) {
-                spin_unlock(&inode->i_lock);
+        if ((inode->i_mode & S_IFMT) != (fattr->mode & S_IFMT))
                 goto out_changed;
-        }
 
         /*
          * Update the read time so we don't revalidate too often.
          */
-        nfsi->read_cache_jiffies = fattr->timestamp;
+        nfsi->read_cache_jiffies = fattr->time_start;
+        nfsi->last_updated = jiffies;
 
         /* Are we racing with known updates of the metadata on the server? */
         data_unstable = ! (nfs_verify_change_attribute(inode, verifier) ||
@@ -1354,7 +1438,7 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
                 /* Do we perhaps have any outstanding writes? */
                 if (nfsi->npages == 0) {
                         /* No, but did we race with nfs_end_data_update()? */
-                        if (verifier  ==  nfsi->cache_change_attribute) {
+                        if (time_after_eq(verifier,  nfsi->cache_change_attribute)) {
                                 inode->i_size = new_isize;
                                 invalid |= NFS_INO_INVALID_DATA;
                         }
@@ -1430,7 +1514,6 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
         if (!nfs_have_delegation(inode, FMODE_READ))
                 nfsi->cache_validity |= invalid;
 
-        spin_unlock(&inode->i_lock);
         return 0;
  out_changed:
         /*
@@ -1639,8 +1722,7 @@ static void nfs4_clear_inode(struct inode *inode)
         struct nfs_inode *nfsi = NFS_I(inode);
 
         /* If we are holding a delegation, return it! */
-        if (nfsi->delegation != NULL)
-                nfs_inode_return_delegation(inode);
+        nfs_inode_return_delegation(inode);
         /* First call standard NFS clear_inode() code */
         nfs_clear_inode(inode);
         /* Now clear out any remaining state */
@@ -1669,7 +1751,7 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
         struct rpc_clnt *clnt = NULL;
         struct rpc_timeout timeparms;
         rpc_authflavor_t authflavour;
-        int proto, err = -EIO;
+        int err = -EIO;
 
         sb->s_blocksize_bits = 0;
         sb->s_blocksize = 0;
@@ -1687,30 +1769,8 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
         server->acdirmax = data->acdirmax*HZ;
 
         server->rpc_ops = &nfs_v4_clientops;
-        /* Initialize timeout values */
-
-        timeparms.to_initval = data->timeo * HZ / 10;
-        timeparms.to_retries = data->retrans;
-        timeparms.to_exponential = 1;
-        if (!timeparms.to_retries)
-                timeparms.to_retries = 5;
 
-        proto = data->proto;
-        /* Which IP protocol do we use? */
-        switch (proto) {
-        case IPPROTO_TCP:
-                timeparms.to_maxval  = RPC_MAX_TCP_TIMEOUT;
-                if (!timeparms.to_initval)
-                        timeparms.to_initval = 600 * HZ / 10;
-                break;
-        case IPPROTO_UDP:
-                timeparms.to_maxval  = RPC_MAX_UDP_TIMEOUT;
-                if (!timeparms.to_initval)
-                        timeparms.to_initval = 11 * HZ / 10;
-                break;
-        default:
-                return -EINVAL;
-        }
+        nfs_init_timeout_values(&timeparms, data->proto, data->timeo, data->retrans);
 
         clp = nfs4_get_client(&server->addr.sin_addr);
         if (!clp) {
@@ -1735,7 +1795,7 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
 
         down_write(&clp->cl_sem);
         if (IS_ERR(clp->cl_rpcclient)) {
-                xprt = xprt_create_proto(proto, &server->addr, &timeparms);
+                xprt = xprt_create_proto(data->proto, &server->addr, &timeparms);
                 if (IS_ERR(xprt)) {
                         up_write(&clp->cl_sem);
                         err = PTR_ERR(xprt);
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index d91b69044a4d..59049e864ca7 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -143,7 +143,6 @@ xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
                 fattr->mode = (fattr->mode & ~S_IFMT) | S_IFIFO;
                 fattr->rdev = 0;
         }
-        fattr->timestamp = jiffies;
         return p;
 }
 
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index edc95514046d..92c870d19ccd 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -78,7 +78,7 @@ nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("%s: call  fsinfo\n", __FUNCTION__);
-        info->fattr->valid = 0;
+        nfs_fattr_init(info->fattr);
         status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0);
         dprintk("%s: reply fsinfo: %d\n", __FUNCTION__, status);
         if (!(info->fattr->valid & NFS_ATTR_FATTR)) {
@@ -98,7 +98,7 @@ nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("NFS call  getattr\n");
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call(server->client, NFS3PROC_GETATTR,
                           fhandle, fattr, 0);
         dprintk("NFS reply getattr: %d\n", status);
@@ -117,7 +117,7 @@ nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
         int     status;
 
         dprintk("NFS call  setattr\n");
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call(NFS_CLIENT(inode), NFS3PROC_SETATTR, &arg, fattr, 0);
         if (status == 0)
                 nfs_setattr_update_inode(inode, sattr);
@@ -143,8 +143,8 @@ nfs3_proc_lookup(struct inode *dir, struct qstr *name,
         int                     status;
 
         dprintk("NFS call  lookup %s\n", name->name);
-        dir_attr.valid = 0;
-        fattr->valid = 0;
+        nfs_fattr_init(&dir_attr);
+        nfs_fattr_init(fattr);
         status = rpc_call(NFS_CLIENT(dir), NFS3PROC_LOOKUP, &arg, &res, 0);
         if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR))
                 status = rpc_call(NFS_CLIENT(dir), NFS3PROC_GETATTR,
@@ -174,7 +174,6 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
         int status;
 
         dprintk("NFS call  access\n");
-        fattr.valid = 0;
 
         if (mode & MAY_READ)
                 arg.access |= NFS3_ACCESS_READ;
@@ -189,6 +188,7 @@ static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
                 if (mode & MAY_EXEC)
                         arg.access |= NFS3_ACCESS_EXECUTE;
         }
+        nfs_fattr_init(&fattr);
         status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
         nfs_refresh_inode(inode, &fattr);
         if (status == 0) {
@@ -217,7 +217,7 @@ static int nfs3_proc_readlink(struct inode *inode, struct page *page,
         int                     status;
 
         dprintk("NFS call  readlink\n");
-        fattr.valid = 0;
+        nfs_fattr_init(&fattr);
         status = rpc_call(NFS_CLIENT(inode), NFS3PROC_READLINK,
                           &args, &fattr, 0);
         nfs_refresh_inode(inode, &fattr);
@@ -240,7 +240,7 @@ static int nfs3_proc_read(struct nfs_read_data *rdata)
 
         dprintk("NFS call  read %d @ %Ld\n", rdata->args.count,
                         (long long) rdata->args.offset);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
         if (status >= 0)
                 nfs_refresh_inode(inode, fattr);
@@ -263,10 +263,10 @@ static int nfs3_proc_write(struct nfs_write_data *wdata)
 
         dprintk("NFS call  write %d @ %Ld\n", wdata->args.count,
                         (long long) wdata->args.offset);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(NFS_CLIENT(inode), &msg, rpcflags);
         if (status >= 0)
-                nfs_refresh_inode(inode, fattr);
+                nfs_post_op_update_inode(inode, fattr);
         dprintk("NFS reply write: %d\n", status);
         return status < 0? status : wdata->res.count;
 }
@@ -285,10 +285,10 @@ static int nfs3_proc_commit(struct nfs_write_data *cdata)
 
         dprintk("NFS call  commit %d @ %Ld\n", cdata->args.count,
                         (long long) cdata->args.offset);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
         if (status >= 0)
-                nfs_refresh_inode(inode, fattr);
+                nfs_post_op_update_inode(inode, fattr);
         dprintk("NFS reply commit: %d\n", status);
         return status;
 }
@@ -299,7 +299,7 @@ static int nfs3_proc_commit(struct nfs_write_data *cdata)
  */
 static int
 nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
-                 int flags)
+                 int flags, struct nameidata *nd)
 {
         struct nfs_fh           fhandle;
         struct nfs_fattr        fattr;
@@ -329,10 +329,10 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         sattr->ia_mode &= ~current->fs->umask;
 
 again:
-        dir_attr.valid = 0;
-        fattr.valid = 0;
+        nfs_fattr_init(&dir_attr);
+        nfs_fattr_init(&fattr);
         status = rpc_call(NFS_CLIENT(dir), NFS3PROC_CREATE, &arg, &res, 0);
-        nfs_refresh_inode(dir, &dir_attr);
+        nfs_post_op_update_inode(dir, &dir_attr);
 
         /* If the server doesn't support the exclusive creation semantics,
          * try again with simple 'guarded' mode. */
@@ -401,9 +401,9 @@ nfs3_proc_remove(struct inode *dir, struct qstr *name)
         int                     status;
 
         dprintk("NFS call  remove %s\n", name->name);
-        dir_attr.valid = 0;
+        nfs_fattr_init(&dir_attr);
         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
-        nfs_refresh_inode(dir, &dir_attr);
+        nfs_post_op_update_inode(dir, &dir_attr);
         dprintk("NFS reply remove: %d\n", status);
         return status;
 }
@@ -422,7 +422,7 @@ nfs3_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir, struct qstr
         ptr->arg.fh = NFS_FH(dir->d_inode);
         ptr->arg.name = name->name;
         ptr->arg.len = name->len;
-        ptr->res.valid = 0;
+        nfs_fattr_init(&ptr->res);
         msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
         msg->rpc_argp = &ptr->arg;
         msg->rpc_resp = &ptr->res;
@@ -439,7 +439,7 @@ nfs3_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
                 return 1;
         if (msg->rpc_argp) {
                 dir_attr = (struct nfs_fattr*)msg->rpc_resp;
-                nfs_refresh_inode(dir->d_inode, dir_attr);
+                nfs_post_op_update_inode(dir->d_inode, dir_attr);
                 kfree(msg->rpc_argp);
         }
         return 0;
@@ -465,11 +465,11 @@ nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name,
         int                     status;
 
         dprintk("NFS call  rename %s -> %s\n", old_name->name, new_name->name);
-        old_dir_attr.valid = 0;
-        new_dir_attr.valid = 0;
+        nfs_fattr_init(&old_dir_attr);
+        nfs_fattr_init(&new_dir_attr);
         status = rpc_call(NFS_CLIENT(old_dir), NFS3PROC_RENAME, &arg, &res, 0);
-        nfs_refresh_inode(old_dir, &old_dir_attr);
-        nfs_refresh_inode(new_dir, &new_dir_attr);
+        nfs_post_op_update_inode(old_dir, &old_dir_attr);
+        nfs_post_op_update_inode(new_dir, &new_dir_attr);
         dprintk("NFS reply rename: %d\n", status);
         return status;
 }
@@ -491,11 +491,11 @@ nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
         int                     status;
 
         dprintk("NFS call  link %s\n", name->name);
-        dir_attr.valid = 0;
-        fattr.valid = 0;
+        nfs_fattr_init(&dir_attr);
+        nfs_fattr_init(&fattr);
         status = rpc_call(NFS_CLIENT(inode), NFS3PROC_LINK, &arg, &res, 0);
-        nfs_refresh_inode(dir, &dir_attr);
-        nfs_refresh_inode(inode, &fattr);
+        nfs_post_op_update_inode(dir, &dir_attr);
+        nfs_post_op_update_inode(inode, &fattr);
         dprintk("NFS reply link: %d\n", status);
         return status;
 }
@@ -524,10 +524,10 @@ nfs3_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
         if (path->len > NFS3_MAXPATHLEN)
                 return -ENAMETOOLONG;
         dprintk("NFS call  symlink %s -> %s\n", name->name, path->name);
-        dir_attr.valid = 0;
-        fattr->valid = 0;
+        nfs_fattr_init(&dir_attr);
+        nfs_fattr_init(fattr);
         status = rpc_call(NFS_CLIENT(dir), NFS3PROC_SYMLINK, &arg, &res, 0);
-        nfs_refresh_inode(dir, &dir_attr);
+        nfs_post_op_update_inode(dir, &dir_attr);
         dprintk("NFS reply symlink: %d\n", status);
         return status;
 }
@@ -552,13 +552,13 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
         int status;
 
         dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
-        dir_attr.valid = 0;
-        fattr.valid = 0;
 
         sattr->ia_mode &= ~current->fs->umask;
 
+        nfs_fattr_init(&dir_attr);
+        nfs_fattr_init(&fattr);
         status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKDIR, &arg, &res, 0);
-        nfs_refresh_inode(dir, &dir_attr);
+        nfs_post_op_update_inode(dir, &dir_attr);
         if (status != 0)
                 goto out;
         status = nfs_instantiate(dentry, &fhandle, &fattr);
@@ -582,9 +582,9 @@ nfs3_proc_rmdir(struct inode *dir, struct qstr *name)
         int                     status;
 
         dprintk("NFS call  rmdir %s\n", name->name);
-        dir_attr.valid = 0;
+        nfs_fattr_init(&dir_attr);
         status = rpc_call(NFS_CLIENT(dir), NFS3PROC_RMDIR, &arg, &dir_attr, 0);
-        nfs_refresh_inode(dir, &dir_attr);
+        nfs_post_op_update_inode(dir, &dir_attr);
         dprintk("NFS reply rmdir: %d\n", status);
         return status;
 }
@@ -634,7 +634,7 @@ nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
         dprintk("NFS call  readdir%s %d\n",
                         plus? "plus" : "", (unsigned int) cookie);
 
-        dir_attr.valid = 0;
+        nfs_fattr_init(&dir_attr);
         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
         nfs_refresh_inode(dir, &dir_attr);
         dprintk("NFS reply readdir: %d\n", status);
@@ -676,10 +676,10 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 
         sattr->ia_mode &= ~current->fs->umask;
 
-        dir_attr.valid = 0;
-        fattr.valid = 0;
+        nfs_fattr_init(&dir_attr);
+        nfs_fattr_init(&fattr);
         status = rpc_call(NFS_CLIENT(dir), NFS3PROC_MKNOD, &arg, &res, 0);
-        nfs_refresh_inode(dir, &dir_attr);
+        nfs_post_op_update_inode(dir, &dir_attr);
         if (status != 0)
                 goto out;
         status = nfs_instantiate(dentry, &fh, &fattr);
@@ -698,7 +698,7 @@ nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("NFS call  fsstat\n");
-        stat->fattr->valid = 0;
+        nfs_fattr_init(stat->fattr);
         status = rpc_call(server->client, NFS3PROC_FSSTAT, fhandle, stat, 0);
         dprintk("NFS reply statfs: %d\n", status);
         return status;
@@ -711,7 +711,7 @@ nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("NFS call  fsinfo\n");
-        info->fattr->valid = 0;
+        nfs_fattr_init(info->fattr);
         status = rpc_call(server->client_sys, NFS3PROC_FSINFO, fhandle, info, 0);
         dprintk("NFS reply fsinfo: %d\n", status);
         return status;
@@ -724,7 +724,7 @@ nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("NFS call  pathconf\n");
-        info->fattr->valid = 0;
+        nfs_fattr_init(info->fattr);
         status = rpc_call(server->client, NFS3PROC_PATHCONF, fhandle, info, 0);
         dprintk("NFS reply pathconf: %d\n", status);
         return status;
@@ -735,7 +735,7 @@ extern u32 *nfs3_decode_dirent(u32 *, struct nfs_entry *, int);
 static void
 nfs3_read_done(struct rpc_task *task)
 {
-        struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata;
+        struct nfs_read_data *data = (struct nfs_read_data *) task->tk_calldata;
 
         if (nfs3_async_handle_jukebox(task))
                 return;
@@ -775,7 +775,7 @@ nfs3_write_done(struct rpc_task *task)
                 return;
         data = (struct nfs_write_data *)task->tk_calldata;
         if (task->tk_status >= 0)
-                nfs_refresh_inode(data->inode, data->res.fattr);
+                nfs_post_op_update_inode(data->inode, data->res.fattr);
         nfs_writeback_done(task);
 }
 
@@ -819,7 +819,7 @@ nfs3_commit_done(struct rpc_task *task)
                 return;
         data = (struct nfs_write_data *)task->tk_calldata;
         if (task->tk_status >= 0)
-                nfs_refresh_inode(data->inode, data->res.fattr);
+                nfs_post_op_update_inode(data->inode, data->res.fattr);
         nfs_commit_done(task);
 }
 
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index db4a904810a4..0498bd36602c 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -174,7 +174,6 @@ xdr_decode_fattr(u32 *p, struct nfs_fattr *fattr)
 
         /* Update the mode bits */
         fattr->valid |= (NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3);
-        fattr->timestamp = jiffies;
         return p;
 }
 
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index ec1a22d7b876..78a53f5a9f18 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -93,25 +93,50 @@ struct nfs4_client {
 };
 
 /*
+ * struct rpc_sequence ensures that RPC calls are sent in the exact
+ * order that they appear on the list.
+ */
+struct rpc_sequence {
+        struct rpc_wait_queue   wait;   /* RPC call delay queue */
+        spinlock_t lock;                /* Protects the list */
+        struct list_head list;          /* Defines sequence of RPC calls */
+};
+
+#define NFS_SEQID_CONFIRMED 1
+struct nfs_seqid_counter {
+        struct rpc_sequence *sequence;
+        int flags;
+        u32 counter;
+};
+
+struct nfs_seqid {
+        struct nfs_seqid_counter *sequence;
+        struct list_head list;
+};
+
+static inline void nfs_confirm_seqid(struct nfs_seqid_counter *seqid, int status)
+{
+        if (seqid_mutating_err(-status))
+                seqid->flags |= NFS_SEQID_CONFIRMED;
+}
+
+/*
  * NFS4 state_owners and lock_owners are simply labels for ordered
  * sequences of RPC calls. Their sole purpose is to provide once-only
  * semantics by allowing the server to identify replayed requests.
- *
- * The ->so_sema is held during all state_owner seqid-mutating operations:
- * OPEN, OPEN_DOWNGRADE, and CLOSE. Its purpose is to properly serialize
- * so_seqid.
  */
 struct nfs4_state_owner {
+        spinlock_t           so_lock;
         struct list_head     so_list;    /* per-clientid list of state_owners */
         struct nfs4_client   *so_client;
         u32                  so_id;      /* 32-bit identifier, unique */
-        struct semaphore     so_sema;
-        u32                  so_seqid;   /* protected by so_sema */
         atomic_t             so_count;
 
         struct rpc_cred      *so_cred;   /* Associated cred */
         struct list_head     so_states;
         struct list_head     so_delegations;
+        struct nfs_seqid_counter so_seqid;
+        struct rpc_sequence  so_sequence;
 };
 
 /*
@@ -132,7 +157,7 @@ struct nfs4_lock_state {
         fl_owner_t              ls_owner;       /* POSIX lock owner */
 #define NFS_LOCK_INITIALIZED 1
         int                     ls_flags;
-        u32                     ls_seqid;
+        struct nfs_seqid_counter        ls_seqid;
         u32                     ls_id;
         nfs4_stateid            ls_stateid;
         atomic_t                ls_count;
@@ -153,7 +178,6 @@ struct nfs4_state {
         struct inode *inode;            /* Pointer to the inode */
 
         unsigned long flags;            /* Do we hold any locks? */
-        struct semaphore lock_sema;     /* Serializes file locking operations */
         spinlock_t state_lock;          /* Protects the lock_states list */
 
         nfs4_stateid stateid;
@@ -191,8 +215,8 @@ extern int nfs4_proc_setclientid_confirm(struct nfs4_client *);
 extern int nfs4_proc_async_renew(struct nfs4_client *);
 extern int nfs4_proc_renew(struct nfs4_client *);
 extern int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode);
-extern struct inode *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
-extern int nfs4_open_revalidate(struct inode *, struct dentry *, int);
+extern struct dentry *nfs4_atomic_open(struct inode *, struct dentry *, struct nameidata *);
+extern int nfs4_open_revalidate(struct inode *, struct dentry *, int, struct nameidata *);
 
 extern struct nfs4_state_recovery_ops nfs4_reboot_recovery_ops;
 extern struct nfs4_state_recovery_ops nfs4_network_partition_recovery_ops;
@@ -224,12 +248,17 @@ extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state
 extern void nfs4_put_open_state(struct nfs4_state *);
 extern void nfs4_close_state(struct nfs4_state *, mode_t);
 extern struct nfs4_state *nfs4_find_state(struct inode *, struct rpc_cred *, mode_t mode);
-extern void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp);
 extern void nfs4_schedule_state_recovery(struct nfs4_client *);
+extern void nfs4_put_lock_state(struct nfs4_lock_state *lsp);
 extern int nfs4_set_lock_state(struct nfs4_state *state, struct file_lock *fl);
-extern void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *ls);
 extern void nfs4_copy_stateid(nfs4_stateid *, struct nfs4_state *, fl_owner_t);
 
+extern struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter);
+extern int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task);
+extern void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid);
+extern void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid);
+extern void nfs_free_seqid(struct nfs_seqid *seqid);
+
 extern const nfs4_stateid zero_stateid;
 
 /* nfs4xdr.c */
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 9701ca8c9428..933e13b383f8 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -47,6 +47,7 @@
 #include <linux/nfs_page.h>
 #include <linux/smp_lock.h>
 #include <linux/namei.h>
+#include <linux/mount.h>
 
 #include "nfs4_fs.h"
 #include "delegation.h"
@@ -56,10 +57,11 @@
 #define NFS4_POLL_RETRY_MIN     (1*HZ)
 #define NFS4_POLL_RETRY_MAX     (15*HZ)
 
+static int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid, struct nfs_seqid *seqid);
 static int nfs4_do_fsinfo(struct nfs_server *, struct nfs_fh *, struct nfs_fsinfo *);
-static int nfs4_async_handle_error(struct rpc_task *, struct nfs_server *);
+static int nfs4_async_handle_error(struct rpc_task *, const struct nfs_server *);
 static int _nfs4_proc_access(struct inode *inode, struct nfs_access_entry *entry);
-static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
+static int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception);
 extern u32 *nfs4_decode_dirent(u32 *p, struct nfs_entry *entry, int plus);
 extern struct rpc_procinfo nfs4_procedures[];
 
@@ -185,8 +187,26 @@ static void update_changeattr(struct inode *inode, struct nfs4_change_info *cinf
 {
         struct nfs_inode *nfsi = NFS_I(inode);
 
+        spin_lock(&inode->i_lock);
+        nfsi->cache_validity |= NFS_INO_INVALID_ATTR;
         if (cinfo->before == nfsi->change_attr && cinfo->atomic)
                 nfsi->change_attr = cinfo->after;
+        spin_unlock(&inode->i_lock);
+}
+
+/* Helper for asynchronous RPC calls */
+static int nfs4_call_async(struct rpc_clnt *clnt, rpc_action tk_begin,
+                rpc_action tk_exit, void *calldata)
+{
+        struct rpc_task *task;
+
+        if (!(task = rpc_new_task(clnt, tk_exit, RPC_TASK_ASYNC)))
+                return -ENOMEM;
+
+        task->tk_calldata = calldata;
+        task->tk_action = tk_begin;
+        rpc_execute(task);
+        return 0;
 }
 
 static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid, int open_flags)
@@ -195,6 +215,7 @@ static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid,
 
         open_flags &= (FMODE_READ|FMODE_WRITE);
         /* Protect against nfs4_find_state() */
+        spin_lock(&state->owner->so_lock);
         spin_lock(&inode->i_lock);
         state->state |= open_flags;
         /* NB! List reordering - see the reclaim code for why.  */
@@ -204,12 +225,12 @@ static void update_open_stateid(struct nfs4_state *state, nfs4_stateid *stateid,
                 state->nreaders++;
         memcpy(&state->stateid, stateid, sizeof(state->stateid));
         spin_unlock(&inode->i_lock);
+        spin_unlock(&state->owner->so_lock);
 }
 
 /*
  * OPEN_RECLAIM:
  *      reclaim state on the server after a reboot.
- *      Assumes caller is holding the sp->so_sem
  */
 static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *state)
 {
@@ -218,7 +239,6 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
         struct nfs_delegation *delegation = NFS_I(inode)->delegation;
         struct nfs_openargs o_arg = {
                 .fh = NFS_FH(inode),
-                .seqid = sp->so_seqid,
                 .id = sp->so_id,
                 .open_flags = state->state,
                 .clientid = server->nfs4_state->cl_clientid,
@@ -245,8 +265,13 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
                 }
                 o_arg.u.delegation_type = delegation->type;
         }
+        o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+        if (o_arg.seqid == NULL)
+                return -ENOMEM;
         status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
-        nfs4_increment_seqid(status, sp);
+        /* Confirm the sequence as being established */
+        nfs_confirm_seqid(&sp->so_seqid, status);
+        nfs_increment_open_seqid(status, o_arg.seqid);
         if (status == 0) {
                 memcpy(&state->stateid, &o_res.stateid, sizeof(state->stateid));
                 if (o_res.delegation_type != 0) {
@@ -256,6 +281,7 @@ static int _nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *st
                                 nfs_async_inode_return_delegation(inode, &o_res.stateid);
                 }
         }
+        nfs_free_seqid(o_arg.seqid);
         clear_bit(NFS_DELEGATED_STATE, &state->flags);
         /* Ensure we update the inode attributes */
         NFS_CACHEINV(inode);
@@ -302,23 +328,35 @@ static int _nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state
         };
         int status = 0;
 
-        down(&sp->so_sema);
         if (!test_bit(NFS_DELEGATED_STATE, &state->flags))
                 goto out;
         if (state->state == 0)
                 goto out;
-        arg.seqid = sp->so_seqid;
+        arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+        status = -ENOMEM;
+        if (arg.seqid == NULL)
+                goto out;
         arg.open_flags = state->state;
         memcpy(arg.u.delegation.data, state->stateid.data, sizeof(arg.u.delegation.data));
         status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
-        nfs4_increment_seqid(status, sp);
+        nfs_increment_open_seqid(status, arg.seqid);
+        if (status != 0)
+                goto out_free;
+        if(res.rflags & NFS4_OPEN_RESULT_CONFIRM) {
+                status = _nfs4_proc_open_confirm(server->client, NFS_FH(inode),
+                                sp, &res.stateid, arg.seqid);
+                if (status != 0)
+                        goto out_free;
+        }
+        nfs_confirm_seqid(&sp->so_seqid, 0);
         if (status >= 0) {
                 memcpy(state->stateid.data, res.stateid.data,
                                 sizeof(state->stateid.data));
                 clear_bit(NFS_DELEGATED_STATE, &state->flags);
         }
+out_free:
+        nfs_free_seqid(arg.seqid);
 out:
-        up(&sp->so_sema);
         dput(parent);
         return status;
 }
@@ -345,11 +383,11 @@ int nfs4_open_delegation_recall(struct dentry *dentry, struct nfs4_state *state)
         return err;
 }
 
-static inline int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid)
+static int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nfs_fh *fh, struct nfs4_state_owner *sp, nfs4_stateid *stateid, struct nfs_seqid *seqid)
 {
         struct nfs_open_confirmargs arg = {
                 .fh             = fh,
-                .seqid          = sp->so_seqid,
+                .seqid          = seqid,
                 .stateid        = *stateid,
         };
         struct nfs_open_confirmres res;
@@ -362,7 +400,9 @@ static inline int _nfs4_proc_open_confirm(struct rpc_clnt *clnt, const struct nf
         int status;
 
         status = rpc_call_sync(clnt, &msg, RPC_TASK_NOINTR);
-        nfs4_increment_seqid(status, sp);
+        /* Confirm the sequence as being established */
+        nfs_confirm_seqid(&sp->so_seqid, status);
+        nfs_increment_open_seqid(status, seqid);
         if (status >= 0)
                 memcpy(stateid, &res.stateid, sizeof(*stateid));
         return status;
@@ -380,21 +420,41 @@ static int _nfs4_proc_open(struct inode *dir, struct nfs4_state_owner  *sp, stru
         int status;
 
         /* Update sequence id. The caller must serialize! */
-        o_arg->seqid = sp->so_seqid;
         o_arg->id = sp->so_id;
         o_arg->clientid = sp->so_client->cl_clientid;
 
         status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
-        nfs4_increment_seqid(status, sp);
+        if (status == 0) {
+                /* OPEN on anything except a regular file is disallowed in NFSv4 */
+                switch (o_res->f_attr->mode & S_IFMT) {
+                        case S_IFREG:
+                                break;
+                        case S_IFLNK:
+                                status = -ELOOP;
+                                break;
+                        case S_IFDIR:
+                                status = -EISDIR;
+                                break;
+                        default:
+                                status = -ENOTDIR;
+                }
+        }
+
+        nfs_increment_open_seqid(status, o_arg->seqid);
         if (status != 0)
                 goto out;
-        update_changeattr(dir, &o_res->cinfo);
+        if (o_arg->open_flags & O_CREAT) {
+                update_changeattr(dir, &o_res->cinfo);
+                nfs_post_op_update_inode(dir, o_res->dir_attr);
+        } else
+                nfs_refresh_inode(dir, o_res->dir_attr);
         if(o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
                 status = _nfs4_proc_open_confirm(server->client, &o_res->fh,
-                                sp, &o_res->stateid);
+                                sp, &o_res->stateid, o_arg->seqid);
                 if (status != 0)
                         goto out;
         }
+        nfs_confirm_seqid(&sp->so_seqid, 0);
         if (!(o_res->f_attr->valid & NFS_ATTR_FATTR))
                 status = server->rpc_ops->getattr(server, &o_res->fh, o_res->f_attr);
 out:
@@ -441,9 +501,7 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
         struct inode *inode = state->inode;
         struct nfs_server *server = NFS_SERVER(dir);
         struct nfs_delegation *delegation = NFS_I(inode)->delegation;
-        struct nfs_fattr        f_attr = {
-                .valid = 0,
-        };
+        struct nfs_fattr f_attr, dir_attr;
         struct nfs_openargs o_arg = {
                 .fh = NFS_FH(dir),
                 .open_flags = state->state,
@@ -453,6 +511,7 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
         };
         struct nfs_openres o_res = {
                 .f_attr = &f_attr,
+                .dir_attr = &dir_attr,
                 .server = server,
         };
         int status = 0;
@@ -465,6 +524,12 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
                 set_bit(NFS_DELEGATED_STATE, &state->flags);
                 goto out;
         }
+        o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+        status = -ENOMEM;
+        if (o_arg.seqid == NULL)
+                goto out;
+        nfs_fattr_init(&f_attr);
+        nfs_fattr_init(&dir_attr);
         status = _nfs4_proc_open(dir, sp, &o_arg, &o_res);
         if (status != 0)
                 goto out_nodeleg;
@@ -490,6 +555,7 @@ static int _nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
                         nfs_inode_reclaim_delegation(inode, sp->so_cred, &o_res);
         }
 out_nodeleg:
+        nfs_free_seqid(o_arg.seqid);
         clear_bit(NFS_DELEGATED_STATE, &state->flags);
 out:
         dput(parent);
@@ -564,7 +630,6 @@ static int _nfs4_open_delegated(struct inode *inode, int flags, struct rpc_cred
                 dprintk("%s: nfs4_get_state_owner failed!\n", __FUNCTION__);
                 goto out_err;
         }
-        down(&sp->so_sema);
         state = nfs4_get_open_state(inode, sp);
         if (state == NULL)
                 goto out_err;
@@ -589,7 +654,6 @@ static int _nfs4_open_delegated(struct inode *inode, int flags, struct rpc_cred
         set_bit(NFS_DELEGATED_STATE, &state->flags);
         update_open_stateid(state, &delegation->stateid, open_flags);
 out_ok:
-        up(&sp->so_sema);
         nfs4_put_state_owner(sp);
         up_read(&nfsi->rwsem);
         up_read(&clp->cl_sem);
@@ -600,11 +664,12 @@ out_err:
         if (sp != NULL) {
                 if (state != NULL)
                         nfs4_put_open_state(state);
-                up(&sp->so_sema);
                 nfs4_put_state_owner(sp);
         }
         up_read(&nfsi->rwsem);
         up_read(&clp->cl_sem);
+        if (err != -EACCES)
+                nfs_inode_return_delegation(inode);
         return err;
 }
 
@@ -635,9 +700,7 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
         struct nfs4_client *clp = server->nfs4_state;
         struct inode *inode = NULL;
         int                     status;
-        struct nfs_fattr        f_attr = {
-                .valid          = 0,
-        };
+        struct nfs_fattr f_attr, dir_attr;
         struct nfs_openargs o_arg = {
                 .fh             = NFS_FH(dir),
                 .open_flags     = flags,
@@ -648,6 +711,7 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
         };
         struct nfs_openres o_res = {
                 .f_attr         = &f_attr,
+                .dir_attr       = &dir_attr,
                 .server         = server,
         };
 
@@ -665,8 +729,12 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
         } else
                 o_arg.u.attrs = sattr;
         /* Serialization for the sequence id */
-        down(&sp->so_sema);
 
+        o_arg.seqid = nfs_alloc_seqid(&sp->so_seqid);
+        if (o_arg.seqid == NULL)
+                return -ENOMEM;
+        nfs_fattr_init(&f_attr);
+        nfs_fattr_init(&dir_attr);
         status = _nfs4_proc_open(dir, sp, &o_arg, &o_res);
         if (status != 0)
                 goto out_err;
@@ -681,7 +749,7 @@ static int _nfs4_do_open(struct inode *dir, struct dentry *dentry, int flags, st
         update_open_stateid(state, &o_res.stateid, flags);
         if (o_res.delegation_type != 0)
                 nfs_inode_set_delegation(inode, cred, &o_res);
-        up(&sp->so_sema);
+        nfs_free_seqid(o_arg.seqid);
         nfs4_put_state_owner(sp);
         up_read(&clp->cl_sem);
         *res = state;
@@ -690,7 +758,7 @@ out_err:
         if (sp != NULL) {
                 if (state != NULL)
                         nfs4_put_open_state(state);
-                up(&sp->so_sema);
+                nfs_free_seqid(o_arg.seqid);
                 nfs4_put_state_owner(sp);
         }
         /* Note: clp->cl_sem must be released before nfs4_put_open_state()! */
@@ -718,7 +786,7 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
                  * It is actually a sign of a bug on the client or on the server.
                  *
                  * If we receive a BAD_SEQID error in the particular case of
-                 * doing an OPEN, we assume that nfs4_increment_seqid() will
+                 * doing an OPEN, we assume that nfs_increment_open_seqid() will
                  * have unhashed the old state_owner for us, and that we can
                  * therefore safely retry using a new one. We should still warn
                  * the user though...
@@ -728,6 +796,16 @@ static struct nfs4_state *nfs4_do_open(struct inode *dir, struct dentry *dentry,
                         exception.retry = 1;
                         continue;
                 }
+                /*
+                 * BAD_STATEID on OPEN means that the server cancelled our
+                 * state before it received the OPEN_CONFIRM.
+                 * Recover by retrying the request as per the discussion
+                 * on Page 181 of RFC3530.
+                 */
+                if (status == -NFS4ERR_BAD_STATEID) {
+                        exception.retry = 1;
+                        continue;
+                }
                 res = ERR_PTR(nfs4_handle_exception(NFS_SERVER(dir),
                                         status, &exception));
         } while (exception.retry);
@@ -755,7 +833,7 @@ static int _nfs4_do_setattr(struct nfs_server *server, struct nfs_fattr *fattr,
         };
         int status;
 
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
 
         if (state != NULL) {
                 msg.rpc_cred = state->owner->so_cred;
@@ -787,19 +865,30 @@ struct nfs4_closedata {
         struct nfs4_state *state;
         struct nfs_closeargs arg;
         struct nfs_closeres res;
+        struct nfs_fattr fattr;
 };
 
+static void nfs4_free_closedata(struct nfs4_closedata *calldata)
+{
+        struct nfs4_state *state = calldata->state;
+        struct nfs4_state_owner *sp = state->owner;
+
+        nfs4_put_open_state(calldata->state);
+        nfs_free_seqid(calldata->arg.seqid);
+        nfs4_put_state_owner(sp);
+        kfree(calldata);
+}
+
 static void nfs4_close_done(struct rpc_task *task)
 {
         struct nfs4_closedata *calldata = (struct nfs4_closedata *)task->tk_calldata;
         struct nfs4_state *state = calldata->state;
-        struct nfs4_state_owner *sp = state->owner;
         struct nfs_server *server = NFS_SERVER(calldata->inode);
 
         /* hmm. we are done with the inode, and in the process of freeing
          * the state_owner. we keep this around to process errors
          */
-        nfs4_increment_seqid(task->tk_status, sp);
+        nfs_increment_open_seqid(task->tk_status, calldata->arg.seqid);
         switch (task->tk_status) {
                 case 0:
                         memcpy(&state->stateid, &calldata->res.stateid,
@@ -816,25 +905,49 @@ static void nfs4_close_done(struct rpc_task *task)
                                 return;
                         }
         }
+        nfs_refresh_inode(calldata->inode, calldata->res.fattr);
         state->state = calldata->arg.open_flags;
-        nfs4_put_open_state(state);
-        up(&sp->so_sema);
-        nfs4_put_state_owner(sp);
-        up_read(&server->nfs4_state->cl_sem);
-        kfree(calldata);
+        nfs4_free_closedata(calldata);
 }
 
-static inline int nfs4_close_call(struct rpc_clnt *clnt, struct nfs4_closedata *calldata)
+static void nfs4_close_begin(struct rpc_task *task)
 {
+        struct nfs4_closedata *calldata = (struct nfs4_closedata *)task->tk_calldata;
+        struct nfs4_state *state = calldata->state;
         struct rpc_message msg = {
                 .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CLOSE],
                 .rpc_argp = &calldata->arg,
                 .rpc_resp = &calldata->res,
-                .rpc_cred = calldata->state->owner->so_cred,
+                .rpc_cred = state->owner->so_cred,
         };
-        if (calldata->arg.open_flags != 0)
+        int mode = 0;
+        int status;
+
+        status = nfs_wait_on_sequence(calldata->arg.seqid, task);
+        if (status != 0)
+                return;
+        /* Don't reorder reads */
+        smp_rmb();
+        /* Recalculate the new open mode in case someone reopened the file
+         * while we were waiting in line to be scheduled.
+         */
+        if (state->nreaders != 0)
+                mode |= FMODE_READ;
+        if (state->nwriters != 0)
+                mode |= FMODE_WRITE;
+        if (test_bit(NFS_DELEGATED_STATE, &state->flags))
+                state->state = mode;
+        if (mode == state->state) {
+                nfs4_free_closedata(calldata);
+                task->tk_exit = NULL;
+                rpc_exit(task, 0);
+                return;
+        }
+        nfs_fattr_init(calldata->res.fattr);
+        if (mode != 0)
                 msg.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_OPEN_DOWNGRADE];
-        return rpc_call_async(clnt, &msg, 0, nfs4_close_done, calldata);
+        calldata->arg.open_flags = mode;
+        rpc_call_setup(task, &msg, 0);
 }
 
 /* 
@@ -850,40 +963,57 @@ static inline int nfs4_close_call(struct rpc_clnt *clnt, struct nfs4_closedata *
  */
 int nfs4_do_close(struct inode *inode, struct nfs4_state *state, mode_t mode) 
 {
+        struct nfs_server *server = NFS_SERVER(inode);
         struct nfs4_closedata *calldata;
-        int status;
+        int status = -ENOMEM;
 
-        /* Tell caller we're done */
-        if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
-                state->state = mode;
-                return 0;
-        }
-        calldata = (struct nfs4_closedata *)kmalloc(sizeof(*calldata), GFP_KERNEL);
+        calldata = kmalloc(sizeof(*calldata), GFP_KERNEL);
         if (calldata == NULL)
-                return -ENOMEM;
+                goto out;
         calldata->inode = inode;
         calldata->state = state;
         calldata->arg.fh = NFS_FH(inode);
+        calldata->arg.stateid = &state->stateid;
         /* Serialization for the sequence id */
-        calldata->arg.seqid = state->owner->so_seqid;
-        calldata->arg.open_flags = mode;
-        memcpy(&calldata->arg.stateid, &state->stateid,
-                        sizeof(calldata->arg.stateid));
-        status = nfs4_close_call(NFS_SERVER(inode)->client, calldata);
-        /*
-         * Return -EINPROGRESS on success in order to indicate to the
-         * caller that an asynchronous RPC call has been launched, and
-         * that it will release the semaphores on completion.
-         */
-        return (status == 0) ? -EINPROGRESS : status;
+        calldata->arg.seqid = nfs_alloc_seqid(&state->owner->so_seqid);
+        if (calldata->arg.seqid == NULL)
+                goto out_free_calldata;
+        calldata->arg.bitmask = server->attr_bitmask;
+        calldata->res.fattr = &calldata->fattr;
+        calldata->res.server = server;
+
+        status = nfs4_call_async(server->client, nfs4_close_begin,
+                        nfs4_close_done, calldata);
+        if (status == 0)
+                goto out;
+
+        nfs_free_seqid(calldata->arg.seqid);
+out_free_calldata:
+        kfree(calldata);
+out:
+        return status;
 }
 
-struct inode *
+static void nfs4_intent_set_file(struct nameidata *nd, struct dentry *dentry, struct nfs4_state *state)
+{
+        struct file *filp;
+
+        filp = lookup_instantiate_filp(nd, dentry, NULL);
+        if (!IS_ERR(filp)) {
+                struct nfs_open_context *ctx;
+                ctx = (struct nfs_open_context *)filp->private_data;
+                ctx->state = state;
+        } else
+                nfs4_close_state(state, nd->intent.open.flags);
+}
+
+struct dentry *
 nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
         struct iattr attr;
         struct rpc_cred *cred;
         struct nfs4_state *state;
+        struct dentry *res;
 
         if (nd->flags & LOOKUP_CREATE) {
                 attr.ia_mode = nd->intent.open.create_mode;
@@ -897,16 +1027,23 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 
         cred = rpcauth_lookupcred(NFS_SERVER(dir)->client->cl_auth, 0);
         if (IS_ERR(cred))
-                return (struct inode *)cred;
+                return (struct dentry *)cred;
         state = nfs4_do_open(dir, dentry, nd->intent.open.flags, &attr, cred);
         put_rpccred(cred);
-        if (IS_ERR(state))
-                return (struct inode *)state;
-        return state->inode;
+        if (IS_ERR(state)) {
+                if (PTR_ERR(state) == -ENOENT)
+                        d_add(dentry, NULL);
+                return (struct dentry *)state;
+        }
+        res = d_add_unique(dentry, state->inode);
+        if (res != NULL)
+                dentry = res;
+        nfs4_intent_set_file(nd, dentry, state);
+        return res;
 }
 
 int
-nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags)
+nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, struct nameidata *nd)
 {
         struct rpc_cred *cred;
         struct nfs4_state *state;
@@ -919,18 +1056,30 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags)
         if (IS_ERR(state))
                 state = nfs4_do_open(dir, dentry, openflags, NULL, cred);
         put_rpccred(cred);
-        if (state == ERR_PTR(-ENOENT) && dentry->d_inode == 0)
-                return 1;
-        if (IS_ERR(state))
-                return 0;
+        if (IS_ERR(state)) {
+                switch (PTR_ERR(state)) {
+                        case -EPERM:
+                        case -EACCES:
+                        case -EDQUOT:
+                        case -ENOSPC:
+                        case -EROFS:
+                                lookup_instantiate_filp(nd, (struct dentry *)state, NULL);
+                                return 1;
+                        case -ENOENT:
+                                if (dentry->d_inode == NULL)
+                                        return 1;
+                }
+                goto out_drop;
+        }
         inode = state->inode;
+        iput(inode);
         if (inode == dentry->d_inode) {
-                iput(inode);
+                nfs4_intent_set_file(nd, dentry, state);
                 return 1;
         }
-        d_drop(dentry);
         nfs4_close_state(state, openflags);
-        iput(inode);
+out_drop:
+        d_drop(dentry);
         return 0;
 }
 
@@ -974,13 +1123,12 @@ static int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fh
 static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
                 struct nfs_fsinfo *info)
 {
-        struct nfs_fattr *      fattr = info->fattr;
         struct nfs4_lookup_root_arg args = {
                 .bitmask = nfs4_fattr_bitmap,
         };
         struct nfs4_lookup_res res = {
                 .server = server,
-                .fattr = fattr,
+                .fattr = info->fattr,
                 .fh = fhandle,
         };
         struct rpc_message msg = {
@@ -988,7 +1136,7 @@ static int _nfs4_lookup_root(struct nfs_server *server, struct nfs_fh *fhandle,
                 .rpc_argp = &args,
                 .rpc_resp = &res,
         };
-        fattr->valid = 0;
+        nfs_fattr_init(info->fattr);
         return rpc_call_sync(server->client, &msg, 0);
 }
 
@@ -1051,7 +1199,7 @@ static int nfs4_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
                 q.len = p - q.name;
 
                 do {
-                        fattr->valid = 0;
+                        nfs_fattr_init(fattr);
                         status = nfs4_handle_exception(server,
                                         rpc_call_sync(server->client, &msg, 0),
                                         &exception);
@@ -1088,7 +1236,7 @@ static int _nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
                 .rpc_resp = &res,
         };
         
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         return rpc_call_sync(server->client, &msg, 0);
 }
 
@@ -1130,7 +1278,7 @@ nfs4_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
         struct nfs4_state *state;
         int status;
 
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         
         cred = rpcauth_lookupcred(NFS_SERVER(inode)->client->cl_auth, 0);
         if (IS_ERR(cred))
@@ -1176,7 +1324,7 @@ static int _nfs4_proc_lookup(struct inode *dir, struct qstr *name,
                 .rpc_resp = &res,
         };
         
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         
         dprintk("NFS call  lookup %s\n", name->name);
         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
@@ -1325,7 +1473,7 @@ static int _nfs4_proc_read(struct nfs_read_data *rdata)
         dprintk("NFS call  read %d @ %Ld\n", rdata->args.count,
                         (long long) rdata->args.offset);
 
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(server->client, &msg, flags);
         if (!status)
                 renew_lease(server, timestamp);
@@ -1362,7 +1510,7 @@ static int _nfs4_proc_write(struct nfs_write_data *wdata)
         dprintk("NFS call  write %d @ %Ld\n", wdata->args.count,
                         (long long) wdata->args.offset);
 
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(server->client, &msg, rpcflags);
         dprintk("NFS reply write: %d\n", status);
         return status;
@@ -1396,7 +1544,7 @@ static int _nfs4_proc_commit(struct nfs_write_data *cdata)
         dprintk("NFS call  commit %d @ %Ld\n", cdata->args.count,
                         (long long) cdata->args.offset);
 
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(server->client, &msg, 0);
         dprintk("NFS reply commit: %d\n", status);
         return status;
@@ -1431,7 +1579,7 @@ static int nfs4_proc_commit(struct nfs_write_data *cdata)
 
 static int
 nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
-                 int flags)
+                 int flags, struct nameidata *nd)
 {
         struct nfs4_state *state;
         struct rpc_cred *cred;
@@ -1453,24 +1601,30 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
                 struct nfs_fattr fattr;
                 status = nfs4_do_setattr(NFS_SERVER(dir), &fattr,
                                      NFS_FH(state->inode), sattr, state);
-                if (status == 0) {
+                if (status == 0)
                         nfs_setattr_update_inode(state->inode, sattr);
-                        goto out;
-                }
-        } else if (flags != 0)
-                goto out;
-        nfs4_close_state(state, flags);
+        }
+        if (status == 0 && nd != NULL && (nd->flags & LOOKUP_OPEN))
+                nfs4_intent_set_file(nd, dentry, state);
+        else
+                nfs4_close_state(state, flags);
 out:
         return status;
 }
 
 static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
 {
+        struct nfs_server *server = NFS_SERVER(dir);
         struct nfs4_remove_arg args = {
                 .fh = NFS_FH(dir),
                 .name = name,
+                .bitmask = server->attr_bitmask,
+        };
+        struct nfs_fattr dir_attr;
+        struct nfs4_remove_res  res = {
+                .server = server,
+                .dir_attr = &dir_attr,
         };
-        struct nfs4_change_info res;
         struct rpc_message msg = {
                 .rpc_proc       = &nfs4_procedures[NFSPROC4_CLNT_REMOVE],
                 .rpc_argp       = &args,
@@ -1478,9 +1632,12 @@ static int _nfs4_proc_remove(struct inode *dir, struct qstr *name)
         };
         int                     status;
 
-        status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
-        if (status == 0)
-                update_changeattr(dir, &res);
+        nfs_fattr_init(res.dir_attr);
+        status = rpc_call_sync(server->client, &msg, 0);
+        if (status == 0) {
+                update_changeattr(dir, &res.cinfo);
+                nfs_post_op_update_inode(dir, res.dir_attr);
+        }
         return status;
 }
 
@@ -1498,12 +1655,14 @@ static int nfs4_proc_remove(struct inode *dir, struct qstr *name)
 
 struct unlink_desc {
         struct nfs4_remove_arg  args;
-        struct nfs4_change_info res;
+        struct nfs4_remove_res  res;
+        struct nfs_fattr dir_attr;
 };
 
 static int nfs4_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir,
                 struct qstr *name)
 {
+        struct nfs_server *server = NFS_SERVER(dir->d_inode);
         struct unlink_desc *up;
 
         up = (struct unlink_desc *) kmalloc(sizeof(*up), GFP_KERNEL);
@@ -1512,6 +1671,9 @@ static int nfs4_proc_unlink_setup(struct rpc_message *msg, struct dentry *dir,
         
         up->args.fh = NFS_FH(dir->d_inode);
         up->args.name = name;
+        up->args.bitmask = server->attr_bitmask;
+        up->res.server = server;
+        up->res.dir_attr = &up->dir_attr;
         
         msg->rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_REMOVE];
         msg->rpc_argp = &up->args;
@@ -1526,7 +1688,8 @@ static int nfs4_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
         
         if (msg->rpc_resp != NULL) {
                 up = container_of(msg->rpc_resp, struct unlink_desc, res);
-                update_changeattr(dir->d_inode, &up->res);
+                update_changeattr(dir->d_inode, &up->res.cinfo);
+                nfs_post_op_update_inode(dir->d_inode, up->res.dir_attr);
                 kfree(up);
                 msg->rpc_resp = NULL;
                 msg->rpc_argp = NULL;
@@ -1537,13 +1700,20 @@ static int nfs4_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
 static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
                 struct inode *new_dir, struct qstr *new_name)
 {
+        struct nfs_server *server = NFS_SERVER(old_dir);
         struct nfs4_rename_arg arg = {
                 .old_dir = NFS_FH(old_dir),
                 .new_dir = NFS_FH(new_dir),
                 .old_name = old_name,
                 .new_name = new_name,
+                .bitmask = server->attr_bitmask,
+        };
+        struct nfs_fattr old_fattr, new_fattr;
+        struct nfs4_rename_res res = {
+                .server = server,
+                .old_fattr = &old_fattr,
+                .new_fattr = &new_fattr,
         };
-        struct nfs4_rename_res res = { };
         struct rpc_message msg = {
                 .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_RENAME],
                 .rpc_argp = &arg,
@@ -1551,11 +1721,15 @@ static int _nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
         };
         int                     status;
         
-        status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
+        nfs_fattr_init(res.old_fattr);
+        nfs_fattr_init(res.new_fattr);
+        status = rpc_call_sync(server->client, &msg, 0);
 
         if (!status) {
                 update_changeattr(old_dir, &res.old_cinfo);
+                nfs_post_op_update_inode(old_dir, res.old_fattr);
                 update_changeattr(new_dir, &res.new_cinfo);
+                nfs_post_op_update_inode(new_dir, res.new_fattr);
         }
         return status;
 }
@@ -1576,22 +1750,34 @@ static int nfs4_proc_rename(struct inode *old_dir, struct qstr *old_name,
 
 static int _nfs4_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
 {
+        struct nfs_server *server = NFS_SERVER(inode);
         struct nfs4_link_arg arg = {
                 .fh     = NFS_FH(inode),
                 .dir_fh = NFS_FH(dir),
                 .name   = name,
+                .bitmask = server->attr_bitmask,
+        };
+        struct nfs_fattr fattr, dir_attr;
+        struct nfs4_link_res res = {
+                .server = server,
+                .fattr = &fattr,
+                .dir_attr = &dir_attr,
         };
-        struct nfs4_change_info cinfo = { };
         struct rpc_message msg = {
                 .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_LINK],
                 .rpc_argp = &arg,
-                .rpc_resp = &cinfo,
+                .rpc_resp = &res,
         };
         int                     status;
 
-        status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
-        if (!status)
-                update_changeattr(dir, &cinfo);
+        nfs_fattr_init(res.fattr);
+        nfs_fattr_init(res.dir_attr);
+        status = rpc_call_sync(server->client, &msg, 0);
+        if (!status) {
+                update_changeattr(dir, &res.cinfo);
+                nfs_post_op_update_inode(dir, res.dir_attr);
+                nfs_refresh_inode(inode, res.fattr);
+        }
 
         return status;
 }
@@ -1613,6 +1799,7 @@ static int _nfs4_proc_symlink(struct inode *dir, struct qstr *name,
                 struct nfs_fattr *fattr)
 {
         struct nfs_server *server = NFS_SERVER(dir);
+        struct nfs_fattr dir_fattr;
         struct nfs4_create_arg arg = {
                 .dir_fh = NFS_FH(dir),
                 .server = server,
@@ -1625,6 +1812,7 @@ static int _nfs4_proc_symlink(struct inode *dir, struct qstr *name,
                 .server = server,
                 .fh = fhandle,
                 .fattr = fattr,
+                .dir_fattr = &dir_fattr,
         };
         struct rpc_message msg = {
                 .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SYMLINK],
@@ -1636,11 +1824,13 @@ static int _nfs4_proc_symlink(struct inode *dir, struct qstr *name,
         if (path->len > NFS4_MAXPATHLEN)
                 return -ENAMETOOLONG;
         arg.u.symlink = path;
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
+        nfs_fattr_init(&dir_fattr);
         
         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
         if (!status)
                 update_changeattr(dir, &res.dir_cinfo);
+        nfs_post_op_update_inode(dir, res.dir_fattr);
         return status;
 }
 
@@ -1664,7 +1854,7 @@ static int _nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
 {
         struct nfs_server *server = NFS_SERVER(dir);
         struct nfs_fh fhandle;
-        struct nfs_fattr fattr;
+        struct nfs_fattr fattr, dir_fattr;
         struct nfs4_create_arg arg = {
                 .dir_fh = NFS_FH(dir),
                 .server = server,
@@ -1677,6 +1867,7 @@ static int _nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
                 .server = server,
                 .fh = &fhandle,
                 .fattr = &fattr,
+                .dir_fattr = &dir_fattr,
         };
         struct rpc_message msg = {
                 .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE],
@@ -1685,11 +1876,13 @@ static int _nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
         };
         int                     status;
 
-        fattr.valid = 0;
+        nfs_fattr_init(&fattr);
+        nfs_fattr_init(&dir_fattr);
         
         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
         if (!status) {
                 update_changeattr(dir, &res.dir_cinfo);
+                nfs_post_op_update_inode(dir, res.dir_fattr);
                 status = nfs_instantiate(dentry, &fhandle, &fattr);
         }
         return status;
@@ -1762,7 +1955,7 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
 {
         struct nfs_server *server = NFS_SERVER(dir);
         struct nfs_fh fh;
-        struct nfs_fattr fattr;
+        struct nfs_fattr fattr, dir_fattr;
         struct nfs4_create_arg arg = {
                 .dir_fh = NFS_FH(dir),
                 .server = server,
@@ -1774,6 +1967,7 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
                 .server = server,
                 .fh = &fh,
                 .fattr = &fattr,
+                .dir_fattr = &dir_fattr,
         };
         struct rpc_message msg = {
                 .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_CREATE],
@@ -1783,7 +1977,8 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
         int                     status;
         int                     mode = sattr->ia_mode;
 
-        fattr.valid = 0;
+        nfs_fattr_init(&fattr);
+        nfs_fattr_init(&dir_fattr);
 
         BUG_ON(!(sattr->ia_valid & ATTR_MODE));
         BUG_ON(!S_ISFIFO(mode) && !S_ISBLK(mode) && !S_ISCHR(mode) && !S_ISSOCK(mode));
@@ -1805,6 +2000,7 @@ static int _nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
         if (status == 0) {
                 update_changeattr(dir, &res.dir_cinfo);
+                nfs_post_op_update_inode(dir, res.dir_fattr);
                 status = nfs_instantiate(dentry, &fh, &fattr);
         }
         return status;
@@ -1836,7 +2032,7 @@ static int _nfs4_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
                 .rpc_resp = fsstat,
         };
 
-        fsstat->fattr->valid = 0;
+        nfs_fattr_init(fsstat->fattr);
         return rpc_call_sync(server->client, &msg, 0);
 }
 
@@ -1883,7 +2079,7 @@ static int nfs4_do_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, str
 
 static int nfs4_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, struct nfs_fsinfo *fsinfo)
 {
-        fsinfo->fattr->valid = 0;
+        nfs_fattr_init(fsinfo->fattr);
         return nfs4_do_fsinfo(server, fhandle, fsinfo);
 }
 
@@ -1906,7 +2102,7 @@ static int _nfs4_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle
                 return 0;
         }
 
-        pathconf->fattr->valid = 0;
+        nfs_fattr_init(pathconf->fattr);
         return rpc_call_sync(server->client, &msg, 0);
 }
 
@@ -1973,8 +2169,10 @@ nfs4_write_done(struct rpc_task *task)
                 rpc_restart_call(task);
                 return;
         }
-        if (task->tk_status >= 0)
+        if (task->tk_status >= 0) {
                 renew_lease(NFS_SERVER(inode), data->timestamp);
+                nfs_post_op_update_inode(inode, data->res.fattr);
+        }
         /* Call back common NFS writeback processing */
         nfs_writeback_done(task);
 }
@@ -1990,6 +2188,7 @@ nfs4_proc_write_setup(struct nfs_write_data *data, int how)
                 .rpc_cred = data->cred,
         };
         struct inode *inode = data->inode;
+        struct nfs_server *server = NFS_SERVER(inode);
         int stable;
         int flags;
         
@@ -2001,6 +2200,8 @@ nfs4_proc_write_setup(struct nfs_write_data *data, int how)
         } else
                 stable = NFS_UNSTABLE;
         data->args.stable = stable;
+        data->args.bitmask = server->attr_bitmask;
+        data->res.server = server;
 
         data->timestamp   = jiffies;
 
@@ -2022,6 +2223,8 @@ nfs4_commit_done(struct rpc_task *task)
                 rpc_restart_call(task);
                 return;
         }
+        if (task->tk_status >= 0)
+                nfs_post_op_update_inode(inode, data->res.fattr);
         /* Call back common NFS writeback processing */
         nfs_commit_done(task);
 }
@@ -2037,8 +2240,12 @@ nfs4_proc_commit_setup(struct nfs_write_data *data, int how)
                 .rpc_cred = data->cred,
         };      
         struct inode *inode = data->inode;
+        struct nfs_server *server = NFS_SERVER(inode);
         int flags;
         
+        data->args.bitmask = server->attr_bitmask;
+        data->res.server = server;
+
         /* Set the initial flags for the task.  */
         flags = (how & FLUSH_SYNC) ? 0 : RPC_TASK_ASYNC;
 
@@ -2106,65 +2313,6 @@ nfs4_proc_renew(struct nfs4_client *clp)
         return 0;
 }
 
-/*
- * We will need to arrange for the VFS layer to provide an atomic open.
- * Until then, this open method is prone to inefficiency and race conditions
- * due to the lookup, potential create, and open VFS calls from sys_open()
- * placed on the wire.
- */
-static int
-nfs4_proc_file_open(struct inode *inode, struct file *filp)
-{
-        struct dentry *dentry = filp->f_dentry;
-        struct nfs_open_context *ctx;
-        struct nfs4_state *state = NULL;
-        struct rpc_cred *cred;
-        int status = -ENOMEM;
-
-        dprintk("nfs4_proc_file_open: starting on (%.*s/%.*s)\n",
-                               (int)dentry->d_parent->d_name.len,
-                               dentry->d_parent->d_name.name,
-                               (int)dentry->d_name.len, dentry->d_name.name);
-
-
-        /* Find our open stateid */
-        cred = rpcauth_lookupcred(NFS_SERVER(inode)->client->cl_auth, 0);
-        if (IS_ERR(cred))
-                return PTR_ERR(cred);
-        ctx = alloc_nfs_open_context(dentry, cred);
-        put_rpccred(cred);
-        if (unlikely(ctx == NULL))
-                return -ENOMEM;
-        status = -EIO; /* ERACE actually */
-        state = nfs4_find_state(inode, cred, filp->f_mode);
-        if (unlikely(state == NULL))
-                goto no_state;
-        ctx->state = state;
-        nfs4_close_state(state, filp->f_mode);
-        ctx->mode = filp->f_mode;
-        nfs_file_set_open_context(filp, ctx);
-        put_nfs_open_context(ctx);
-        if (filp->f_mode & FMODE_WRITE)
-                nfs_begin_data_update(inode);
-        return 0;
-no_state:
-        printk(KERN_WARNING "NFS: v4 raced in function %s\n", __FUNCTION__);
-        put_nfs_open_context(ctx);
-        return status;
-}
-
-/*
- * Release our state
- */
-static int
-nfs4_proc_file_release(struct inode *inode, struct file *filp)
-{
-        if (filp->f_mode & FMODE_WRITE)
-                nfs_end_data_update(inode);
-        nfs_file_clear_open_context(filp);
-        return 0;
-}
-
 static inline int nfs4_server_supports_acls(struct nfs_server *server)
 {
         return (server->caps & NFS_CAP_ACLS)
@@ -2285,7 +2433,7 @@ static inline ssize_t nfs4_get_acl_uncached(struct inode *inode, void *buf, size
                         return -ENOMEM;
                 args.acl_pages[0] = localpage;
                 args.acl_pgbase = 0;
-                args.acl_len = PAGE_SIZE;
+                resp_len = args.acl_len = PAGE_SIZE;
         } else {
                 resp_buf = buf;
                 buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);
@@ -2345,6 +2493,7 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
 
         if (!nfs4_server_supports_acls(server))
                 return -EOPNOTSUPP;
+        nfs_inode_return_delegation(inode);
         buf_to_pages(buf, buflen, arg.acl_pages, &arg.acl_pgbase);
         ret = rpc_call_sync(NFS_SERVER(inode)->client, &msg, 0);
         if (ret == 0)
@@ -2353,7 +2502,7 @@ static int nfs4_proc_set_acl(struct inode *inode, const void *buf, size_t buflen
 }
 
 static int
-nfs4_async_handle_error(struct rpc_task *task, struct nfs_server *server)
+nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server)
 {
         struct nfs4_client *clp = server->nfs4_state;
 
@@ -2431,7 +2580,7 @@ static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
 /* This is the error handling routine for processes that are allowed
  * to sleep.
  */
-int nfs4_handle_exception(struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
+int nfs4_handle_exception(const struct nfs_server *server, int errorcode, struct nfs4_exception *exception)
 {
         struct nfs4_client *clp = server->nfs4_state;
         int ret = errorcode;
@@ -2632,7 +2781,6 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
 
         down_read(&clp->cl_sem);
         nlo.clientid = clp->cl_clientid;
-        down(&state->lock_sema);
         status = nfs4_set_lock_state(state, request);
         if (status != 0)
                 goto out;
@@ -2659,7 +2807,6 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
                 status = 0;
         }
 out:
-        up(&state->lock_sema);
         up_read(&clp->cl_sem);
         return status;
 }
@@ -2696,79 +2843,149 @@ static int do_vfs_lock(struct file *file, struct file_lock *fl)
         return res;
 }
 
-static int _nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
+struct nfs4_unlockdata {
+        struct nfs_lockargs arg;
+        struct nfs_locku_opargs luargs;
+        struct nfs_lockres res;
+        struct nfs4_lock_state *lsp;
+        struct nfs_open_context *ctx;
+        atomic_t refcount;
+        struct completion completion;
+};
+
+static void nfs4_locku_release_calldata(struct nfs4_unlockdata *calldata)
 {
-        struct inode *inode = state->inode;
-        struct nfs_server *server = NFS_SERVER(inode);
-        struct nfs4_client *clp = server->nfs4_state;
-        struct nfs_lockargs arg = {
-                .fh = NFS_FH(inode),
-                .type = nfs4_lck_type(cmd, request),
-                .offset = request->fl_start,
-                .length = nfs4_lck_length(request),
-        };
-        struct nfs_lockres res = {
-                .server = server,
-        };
+        if (atomic_dec_and_test(&calldata->refcount)) {
+                nfs_free_seqid(calldata->luargs.seqid);
+                nfs4_put_lock_state(calldata->lsp);
+                put_nfs_open_context(calldata->ctx);
+                kfree(calldata);
+        }
+}
+
+static void nfs4_locku_complete(struct nfs4_unlockdata *calldata)
+{
+        complete(&calldata->completion);
+        nfs4_locku_release_calldata(calldata);
+}
+
+static void nfs4_locku_done(struct rpc_task *task)
+{
+        struct nfs4_unlockdata *calldata = (struct nfs4_unlockdata *)task->tk_calldata;
+
+        nfs_increment_lock_seqid(task->tk_status, calldata->luargs.seqid);
+        switch (task->tk_status) {
+                case 0:
+                        memcpy(calldata->lsp->ls_stateid.data,
+                                        calldata->res.u.stateid.data,
+                                        sizeof(calldata->lsp->ls_stateid.data));
+                        break;
+                case -NFS4ERR_STALE_STATEID:
+                case -NFS4ERR_EXPIRED:
+                        nfs4_schedule_state_recovery(calldata->res.server->nfs4_state);
+                        break;
+                default:
+                        if (nfs4_async_handle_error(task, calldata->res.server) == -EAGAIN) {
+                                rpc_restart_call(task);
+                                return;
+                        }
+        }
+        nfs4_locku_complete(calldata);
+}
+
+static void nfs4_locku_begin(struct rpc_task *task)
+{
+        struct nfs4_unlockdata *calldata = (struct nfs4_unlockdata *)task->tk_calldata;
         struct rpc_message msg = {
                 .rpc_proc       = &nfs4_procedures[NFSPROC4_CLNT_LOCKU],
-                .rpc_argp       = &arg,
-                .rpc_resp       = &res,
-                .rpc_cred       = state->owner->so_cred,
+                .rpc_argp       = &calldata->arg,
+                .rpc_resp       = &calldata->res,
+                .rpc_cred       = calldata->lsp->ls_state->owner->so_cred,
         };
+        int status;
+
+        status = nfs_wait_on_sequence(calldata->luargs.seqid, task);
+        if (status != 0)
+                return;
+        if ((calldata->lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0) {
+                nfs4_locku_complete(calldata);
+                task->tk_exit = NULL;
+                rpc_exit(task, 0);
+                return;
+        }
+        rpc_call_setup(task, &msg, 0);
+}
+
+static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
+{
+        struct nfs4_unlockdata *calldata;
+        struct inode *inode = state->inode;
+        struct nfs_server *server = NFS_SERVER(inode);
         struct nfs4_lock_state *lsp;
-        struct nfs_locku_opargs luargs;
         int status;
-                        
-        down_read(&clp->cl_sem);
-        down(&state->lock_sema);
+
         status = nfs4_set_lock_state(state, request);
         if (status != 0)
-                goto out;
+                return status;
         lsp = request->fl_u.nfs4_fl.owner;
         /* We might have lost the locks! */
         if ((lsp->ls_flags & NFS_LOCK_INITIALIZED) == 0)
-                goto out;
-        luargs.seqid = lsp->ls_seqid;
-        memcpy(&luargs.stateid, &lsp->ls_stateid, sizeof(luargs.stateid));
-        arg.u.locku = &luargs;
-        status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
-        nfs4_increment_lock_seqid(status, lsp);
-
-        if (status == 0)
-                memcpy(&lsp->ls_stateid,  &res.u.stateid, 
-                                sizeof(lsp->ls_stateid));
-out:
-        up(&state->lock_sema);
+                return 0;
+        calldata = kmalloc(sizeof(*calldata), GFP_KERNEL);
+        if (calldata == NULL)
+                return -ENOMEM;
+        calldata->luargs.seqid = nfs_alloc_seqid(&lsp->ls_seqid);
+        if (calldata->luargs.seqid == NULL) {
+                kfree(calldata);
+                return -ENOMEM;
+        }
+        calldata->luargs.stateid = &lsp->ls_stateid;
+        calldata->arg.fh = NFS_FH(inode);
+        calldata->arg.type = nfs4_lck_type(cmd, request);
+        calldata->arg.offset = request->fl_start;
+        calldata->arg.length = nfs4_lck_length(request);
+        calldata->arg.u.locku = &calldata->luargs;
+        calldata->res.server = server;
+        calldata->lsp = lsp;
+        atomic_inc(&lsp->ls_count);
+
+        /* Ensure we don't close file until we're done freeing locks! */
+        calldata->ctx = get_nfs_open_context((struct nfs_open_context*)request->fl_file->private_data);
+
+        atomic_set(&calldata->refcount, 2);
+        init_completion(&calldata->completion);
+
+        status = nfs4_call_async(NFS_SERVER(inode)->client, nfs4_locku_begin,
+                        nfs4_locku_done, calldata);
         if (status == 0)
-                do_vfs_lock(request->fl_file, request);
-        up_read(&clp->cl_sem);
+                wait_for_completion_interruptible(&calldata->completion);
+        do_vfs_lock(request->fl_file, request);
+        nfs4_locku_release_calldata(calldata);
         return status;
 }
 
-static int nfs4_proc_unlck(struct nfs4_state *state, int cmd, struct file_lock *request)
-{
-        struct nfs4_exception exception = { };
-        int err;
-
-        do {
-                err = nfs4_handle_exception(NFS_SERVER(state->inode),
-                                _nfs4_proc_unlck(state, cmd, request),
-                                &exception);
-        } while (exception.retry);
-        return err;
-}
-
 static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *request, int reclaim)
 {
         struct inode *inode = state->inode;
         struct nfs_server *server = NFS_SERVER(inode);
         struct nfs4_lock_state *lsp = request->fl_u.nfs4_fl.owner;
+        struct nfs_lock_opargs largs = {
+                .lock_stateid = &lsp->ls_stateid,
+                .open_stateid = &state->stateid,
+                .lock_owner = {
+                        .clientid = server->nfs4_state->cl_clientid,
+                        .id = lsp->ls_id,
+                },
+                .reclaim = reclaim,
+        };
         struct nfs_lockargs arg = {
                 .fh = NFS_FH(inode),
                 .type = nfs4_lck_type(cmd, request),
                 .offset = request->fl_start,
                 .length = nfs4_lck_length(request),
+                .u = {
+                        .lock = &largs,
+                },
         };
         struct nfs_lockres res = {
                 .server = server,
@@ -2779,53 +2996,39 @@ static int _nfs4_do_setlk(struct nfs4_state *state, int cmd, struct file_lock *r
                 .rpc_resp       = &res,
                 .rpc_cred       = state->owner->so_cred,
         };
-        struct nfs_lock_opargs largs = {
-                .reclaim = reclaim,
-                .new_lock_owner = 0,
-        };
-        int status;
+        int status = -ENOMEM;
 
-        if (!(lsp->ls_flags & NFS_LOCK_INITIALIZED)) {
+        largs.lock_seqid = nfs_alloc_seqid(&lsp->ls_seqid);
+        if (largs.lock_seqid == NULL)
+                return -ENOMEM;
+        if (!(lsp->ls_seqid.flags & NFS_SEQID_CONFIRMED)) {
                 struct nfs4_state_owner *owner = state->owner;
-                struct nfs_open_to_lock otl = {
-                        .lock_owner = {
-                                .clientid = server->nfs4_state->cl_clientid,
-                        },
-                };
-
-                otl.lock_seqid = lsp->ls_seqid;
-                otl.lock_owner.id = lsp->ls_id;
-                memcpy(&otl.open_stateid, &state->stateid, sizeof(otl.open_stateid));
-                largs.u.open_lock = &otl;
+
+                largs.open_seqid = nfs_alloc_seqid(&owner->so_seqid);
+                if (largs.open_seqid == NULL)
+                        goto out;
                 largs.new_lock_owner = 1;
-                arg.u.lock = &largs;
-                down(&owner->so_sema);
-                otl.open_seqid = owner->so_seqid;
                 status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
-                /* increment open_owner seqid on success, and 
-                * seqid mutating errors */
-                nfs4_increment_seqid(status, owner);
-                up(&owner->so_sema);
-                if (status == 0) {
-                        lsp->ls_flags |= NFS_LOCK_INITIALIZED;
-                        lsp->ls_seqid++;
+                /* increment open seqid on success, and seqid mutating errors */
+                if (largs.new_lock_owner != 0) {
+                        nfs_increment_open_seqid(status, largs.open_seqid);
+                        if (status == 0)
+                                nfs_confirm_seqid(&lsp->ls_seqid, 0);
                 }
-        } else {
-                struct nfs_exist_lock el = {
-                        .seqid = lsp->ls_seqid,
-                };
-                memcpy(&el.stateid, &lsp->ls_stateid, sizeof(el.stateid));
-                largs.u.exist_lock = &el;
-                arg.u.lock = &largs;
+                nfs_free_seqid(largs.open_seqid);
+        } else
                 status = rpc_call_sync(server->client, &msg, RPC_TASK_NOINTR);
-                /* increment seqid on success, and * seqid mutating errors*/
-                nfs4_increment_lock_seqid(status, lsp);
-        }
+        /* increment lock seqid on success, and seqid mutating errors*/
+        nfs_increment_lock_seqid(status, largs.lock_seqid);
         /* save the returned stateid. */
-        if (status == 0)
-                memcpy(&lsp->ls_stateid, &res.u.stateid, sizeof(nfs4_stateid));
-        else if (status == -NFS4ERR_DENIED)
+        if (status == 0) {
+                memcpy(lsp->ls_stateid.data, res.u.stateid.data,
+                                sizeof(lsp->ls_stateid.data));
+                lsp->ls_flags |= NFS_LOCK_INITIALIZED;
+        } else if (status == -NFS4ERR_DENIED)
                 status = -EAGAIN;
+out:
+        nfs_free_seqid(largs.lock_seqid);
         return status;
 }
 
@@ -2865,11 +3068,9 @@ static int _nfs4_proc_setlk(struct nfs4_state *state, int cmd, struct file_lock
         int status;
 
         down_read(&clp->cl_sem);
-        down(&state->lock_sema);
         status = nfs4_set_lock_state(state, request);
         if (status == 0)
                 status = _nfs4_do_setlk(state, cmd, request, 0);
-        up(&state->lock_sema);
         if (status == 0) {
                 /* Note: we always want to sleep here! */
                 request->fl_flags |= FL_SLEEP;
@@ -3024,8 +3225,8 @@ struct nfs_rpc_ops	nfs_v4_clientops = {
         .read_setup     = nfs4_proc_read_setup,
         .write_setup    = nfs4_proc_write_setup,
         .commit_setup   = nfs4_proc_commit_setup,
-        .file_open      = nfs4_proc_file_open,
-        .file_release   = nfs4_proc_file_release,
+        .file_open      = nfs_open,
+        .file_release   = nfs_release,
         .lock           = nfs4_proc_lock,
         .clear_acl_cache = nfs4_zap_acl_attr,
 };
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index afe587d82f1e..2d5a6a2b9dec 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -264,13 +264,16 @@ nfs4_alloc_state_owner(void)
 {
         struct nfs4_state_owner *sp;
 
-        sp = kmalloc(sizeof(*sp),GFP_KERNEL);
+        sp = kzalloc(sizeof(*sp),GFP_KERNEL);
         if (!sp)
                 return NULL;
-        init_MUTEX(&sp->so_sema);
-        sp->so_seqid = 0;                 /* arbitrary */
+        spin_lock_init(&sp->so_lock);
         INIT_LIST_HEAD(&sp->so_states);
         INIT_LIST_HEAD(&sp->so_delegations);
+        rpc_init_wait_queue(&sp->so_sequence.wait, "Seqid_waitqueue");
+        sp->so_seqid.sequence = &sp->so_sequence;
+        spin_lock_init(&sp->so_sequence.lock);
+        INIT_LIST_HEAD(&sp->so_sequence.list);
         atomic_set(&sp->so_count, 1);
         return sp;
 }
@@ -359,7 +362,6 @@ nfs4_alloc_open_state(void)
         memset(state->stateid.data, 0, sizeof(state->stateid.data));
         atomic_set(&state->count, 1);
         INIT_LIST_HEAD(&state->lock_states);
-        init_MUTEX(&state->lock_sema);
         spin_lock_init(&state->state_lock);
         return state;
 }
@@ -437,21 +439,23 @@ nfs4_get_open_state(struct inode *inode, struct nfs4_state_owner *owner)
         if (state)
                 goto out;
         new = nfs4_alloc_open_state();
+        spin_lock(&owner->so_lock);
         spin_lock(&inode->i_lock);
         state = __nfs4_find_state_byowner(inode, owner);
         if (state == NULL && new != NULL) {
                 state = new;
-                /* Caller *must* be holding owner->so_sem */
-                /* Note: The reclaim code dictates that we add stateless
-                 * and read-only stateids to the end of the list */
-                list_add_tail(&state->open_states, &owner->so_states);
                 state->owner = owner;
                 atomic_inc(&owner->so_count);
                 list_add(&state->inode_states, &nfsi->open_states);
                 state->inode = igrab(inode);
                 spin_unlock(&inode->i_lock);
+                /* Note: The reclaim code dictates that we add stateless
+                 * and read-only stateids to the end of the list */
+                list_add_tail(&state->open_states, &owner->so_states);
+                spin_unlock(&owner->so_lock);
         } else {
                 spin_unlock(&inode->i_lock);
+                spin_unlock(&owner->so_lock);
                 if (new)
                         nfs4_free_open_state(new);
         }
@@ -461,19 +465,21 @@ out:
 
 /*
  * Beware! Caller must be holding exactly one
- * reference to clp->cl_sem and owner->so_sema!
+ * reference to clp->cl_sem!
  */
 void nfs4_put_open_state(struct nfs4_state *state)
 {
         struct inode *inode = state->inode;
         struct nfs4_state_owner *owner = state->owner;
 
-        if (!atomic_dec_and_lock(&state->count, &inode->i_lock))
+        if (!atomic_dec_and_lock(&state->count, &owner->so_lock))
                 return;
+        spin_lock(&inode->i_lock);
         if (!list_empty(&state->inode_states))
                 list_del(&state->inode_states);
-        spin_unlock(&inode->i_lock);
         list_del(&state->open_states);
+        spin_unlock(&inode->i_lock);
+        spin_unlock(&owner->so_lock);
         iput(inode);
         BUG_ON (state->state != 0);
         nfs4_free_open_state(state);
@@ -481,20 +487,17 @@ void nfs4_put_open_state(struct nfs4_state *state)
 }
 
 /*
- * Beware! Caller must be holding no references to clp->cl_sem!
- * of owner->so_sema!
+ * Close the current file.
  */
 void nfs4_close_state(struct nfs4_state *state, mode_t mode)
 {
         struct inode *inode = state->inode;
         struct nfs4_state_owner *owner = state->owner;
-        struct nfs4_client *clp = owner->so_client;
         int newstate;
 
         atomic_inc(&owner->so_count);
-        down_read(&clp->cl_sem);
-        down(&owner->so_sema);
         /* Protect against nfs4_find_state() */
+        spin_lock(&owner->so_lock);
         spin_lock(&inode->i_lock);
         if (mode & FMODE_READ)
                 state->nreaders--;
@@ -507,6 +510,7 @@ void nfs4_close_state(struct nfs4_state *state, mode_t mode)
                 list_move_tail(&state->open_states, &owner->so_states);
         }
         spin_unlock(&inode->i_lock);
+        spin_unlock(&owner->so_lock);
         newstate = 0;
         if (state->state != 0) {
                 if (state->nreaders)
@@ -515,14 +519,16 @@ void nfs4_close_state(struct nfs4_state *state, mode_t mode)
                         newstate |= FMODE_WRITE;
                 if (state->state == newstate)
                         goto out;
-                if (nfs4_do_close(inode, state, newstate) == -EINPROGRESS)
+                if (test_bit(NFS_DELEGATED_STATE, &state->flags)) {
+                        state->state = newstate;
+                        goto out;
+                }
+                if (nfs4_do_close(inode, state, newstate) == 0)
                         return;
         }
 out:
         nfs4_put_open_state(state);
-        up(&owner->so_sema);
         nfs4_put_state_owner(owner);
-        up_read(&clp->cl_sem);
 }
 
 /*
@@ -546,19 +552,16 @@ __nfs4_find_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
  * Return a compatible lock_state. If no initialized lock_state structure
  * exists, return an uninitialized one.
  *
- * The caller must be holding state->lock_sema
  */
 static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, fl_owner_t fl_owner)
 {
         struct nfs4_lock_state *lsp;
         struct nfs4_client *clp = state->owner->so_client;
 
-        lsp = kmalloc(sizeof(*lsp), GFP_KERNEL);
+        lsp = kzalloc(sizeof(*lsp), GFP_KERNEL);
         if (lsp == NULL)
                 return NULL;
-        lsp->ls_flags = 0;
-        lsp->ls_seqid = 0;      /* arbitrary */
-        memset(lsp->ls_stateid.data, 0, sizeof(lsp->ls_stateid.data));
+        lsp->ls_seqid.sequence = &state->owner->so_sequence;
         atomic_set(&lsp->ls_count, 1);
         lsp->ls_owner = fl_owner;
         spin_lock(&clp->cl_lock);
@@ -572,7 +575,7 @@ static struct nfs4_lock_state *nfs4_alloc_lock_state(struct nfs4_state *state, f
  * Return a compatible lock_state. If no initialized lock_state structure
  * exists, return an uninitialized one.
  *
- * The caller must be holding state->lock_sema and clp->cl_sem
+ * The caller must be holding clp->cl_sem
  */
 static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_owner_t owner)
 {
@@ -605,7 +608,7 @@ static struct nfs4_lock_state *nfs4_get_lock_state(struct nfs4_state *state, fl_
  * Release reference to lock_state, and free it if we see that
  * it is no longer in use
  */
-static void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
+void nfs4_put_lock_state(struct nfs4_lock_state *lsp)
 {
         struct nfs4_state *state;
 
@@ -673,29 +676,94 @@ void nfs4_copy_stateid(nfs4_stateid *dst, struct nfs4_state *state, fl_owner_t f
         nfs4_put_lock_state(lsp);
 }
 
-/*
-* Called with state->lock_sema and clp->cl_sem held.
-*/
-void nfs4_increment_lock_seqid(int status, struct nfs4_lock_state *lsp)
+struct nfs_seqid *nfs_alloc_seqid(struct nfs_seqid_counter *counter)
 {
-        if (status == NFS_OK || seqid_mutating_err(-status))
-                lsp->ls_seqid++;
+        struct nfs_seqid *new;
+
+        new = kmalloc(sizeof(*new), GFP_KERNEL);
+        if (new != NULL) {
+                new->sequence = counter;
+                INIT_LIST_HEAD(&new->list);
+        }
+        return new;
+}
+
+void nfs_free_seqid(struct nfs_seqid *seqid)
+{
+        struct rpc_sequence *sequence = seqid->sequence->sequence;
+
+        if (!list_empty(&seqid->list)) {
+                spin_lock(&sequence->lock);
+                list_del(&seqid->list);
+                spin_unlock(&sequence->lock);
+        }
+        rpc_wake_up_next(&sequence->wait);
+        kfree(seqid);
 }
 
 /*
-* Called with sp->so_sema and clp->cl_sem held.
-*
-* Increment the seqid if the OPEN/OPEN_DOWNGRADE/CLOSE succeeded, or
-* failed with a seqid incrementing error -
-* see comments nfs_fs.h:seqid_mutating_error()
-*/
-void nfs4_increment_seqid(int status, struct nfs4_state_owner *sp)
-{
-        if (status == NFS_OK || seqid_mutating_err(-status))
-                sp->so_seqid++;
-        /* If the server returns BAD_SEQID, unhash state_owner here */
-        if (status == -NFS4ERR_BAD_SEQID)
+ * Increment the seqid if the OPEN/OPEN_DOWNGRADE/CLOSE succeeded, or
+ * failed with a seqid incrementing error -
+ * see comments nfs_fs.h:seqid_mutating_error()
+ */
+static inline void nfs_increment_seqid(int status, struct nfs_seqid *seqid)
+{
+        switch (status) {
+                case 0:
+                        break;
+                case -NFS4ERR_BAD_SEQID:
+                case -NFS4ERR_STALE_CLIENTID:
+                case -NFS4ERR_STALE_STATEID:
+                case -NFS4ERR_BAD_STATEID:
+                case -NFS4ERR_BADXDR:
+                case -NFS4ERR_RESOURCE:
+                case -NFS4ERR_NOFILEHANDLE:
+                        /* Non-seqid mutating errors */
+                        return;
+        };
+        /*
+         * Note: no locking needed as we are guaranteed to be first
+         * on the sequence list
+         */
+        seqid->sequence->counter++;
+}
+
+void nfs_increment_open_seqid(int status, struct nfs_seqid *seqid)
+{
+        if (status == -NFS4ERR_BAD_SEQID) {
+                struct nfs4_state_owner *sp = container_of(seqid->sequence,
+                                struct nfs4_state_owner, so_seqid);
                 nfs4_drop_state_owner(sp);
+        }
+        return nfs_increment_seqid(status, seqid);
+}
+
+/*
+ * Increment the seqid if the LOCK/LOCKU succeeded, or
+ * failed with a seqid incrementing error -
+ * see comments nfs_fs.h:seqid_mutating_error()
+ */
+void nfs_increment_lock_seqid(int status, struct nfs_seqid *seqid)
+{
+        return nfs_increment_seqid(status, seqid);
+}
+
+int nfs_wait_on_sequence(struct nfs_seqid *seqid, struct rpc_task *task)
+{
+        struct rpc_sequence *sequence = seqid->sequence->sequence;
+        int status = 0;
+
+        if (sequence->list.next == &seqid->list)
+                goto out;
+        spin_lock(&sequence->lock);
+        if (!list_empty(&sequence->list)) {
+                rpc_sleep_on(&sequence->wait, task, NULL, NULL);
+                status = -EAGAIN;
+        } else
+                list_add(&seqid->list, &sequence->list);
+        spin_unlock(&sequence->lock);
+out:
+        return status;
 }
 
 static int reclaimer(void *);
@@ -791,8 +859,6 @@ static int nfs4_reclaim_open_state(struct nfs4_state_recovery_ops *ops, struct n
                 if (state->state == 0)
                         continue;
                 status = ops->recover_open(sp, state);
-                list_for_each_entry(lock, &state->lock_states, ls_locks)
-                        lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
                 if (status >= 0) {
                         status = nfs4_reclaim_locks(ops, state);
                         if (status < 0)
@@ -831,6 +897,28 @@ out_err:
         return status;
 }
 
+static void nfs4_state_mark_reclaim(struct nfs4_client *clp)
+{
+        struct nfs4_state_owner *sp;
+        struct nfs4_state *state;
+        struct nfs4_lock_state *lock;
+
+        /* Reset all sequence ids to zero */
+        list_for_each_entry(sp, &clp->cl_state_owners, so_list) {
+                sp->so_seqid.counter = 0;
+                sp->so_seqid.flags = 0;
+                spin_lock(&sp->so_lock);
+                list_for_each_entry(state, &sp->so_states, open_states) {
+                        list_for_each_entry(lock, &state->lock_states, ls_locks) {
+                                lock->ls_seqid.counter = 0;
+                                lock->ls_seqid.flags = 0;
+                                lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
+                        }
+                }
+                spin_unlock(&sp->so_lock);
+        }
+}
+
 static int reclaimer(void *ptr)
 {
         struct reclaimer_args *args = (struct reclaimer_args *)ptr;
@@ -864,6 +952,7 @@ restart_loop:
                 default:
                         ops = &nfs4_network_partition_recovery_ops;
         };
+        nfs4_state_mark_reclaim(clp);
         status = __nfs4_init_client(clp);
         if (status)
                 goto out_error;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6c564ef9489e..fbbace8a30c4 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -95,6 +95,8 @@ static int nfs_stat_to_errno(int);
 #define decode_getattr_maxsz    (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
 #define encode_savefh_maxsz     (op_encode_hdr_maxsz)
 #define decode_savefh_maxsz     (op_decode_hdr_maxsz)
+#define encode_restorefh_maxsz  (op_encode_hdr_maxsz)
+#define decode_restorefh_maxsz  (op_decode_hdr_maxsz)
 #define encode_fsinfo_maxsz     (op_encode_hdr_maxsz + 2)
 #define decode_fsinfo_maxsz     (op_decode_hdr_maxsz + 11)
 #define encode_renew_maxsz      (op_encode_hdr_maxsz + 3)
@@ -157,16 +159,20 @@ static int nfs_stat_to_errno(int);
                                 op_decode_hdr_maxsz + 2)
 #define NFS4_enc_write_sz       (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
-                                op_encode_hdr_maxsz + 8)
+                                op_encode_hdr_maxsz + 8 + \
+                                encode_getattr_maxsz)
 #define NFS4_dec_write_sz       (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
-                                op_decode_hdr_maxsz + 4)
+                                op_decode_hdr_maxsz + 4 + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_commit_sz      (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
-                                op_encode_hdr_maxsz + 3)
+                                op_encode_hdr_maxsz + 3 + \
+                                encode_getattr_maxsz)
 #define NFS4_dec_commit_sz      (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
-                                op_decode_hdr_maxsz + 2)
+                                op_decode_hdr_maxsz + 2 + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_open_sz        (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
                                 op_encode_hdr_maxsz + \
@@ -196,17 +202,21 @@ static int nfs_stat_to_errno(int);
 #define NFS4_enc_open_downgrade_sz \
                                 (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
-                                op_encode_hdr_maxsz + 7)
+                                op_encode_hdr_maxsz + 7 + \
+                                encode_getattr_maxsz)
 #define NFS4_dec_open_downgrade_sz \
                                 (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
-                                op_decode_hdr_maxsz + 4)
+                                op_decode_hdr_maxsz + 4 + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_close_sz       (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
-                                op_encode_hdr_maxsz + 5)
+                                op_encode_hdr_maxsz + 5 + \
+                                encode_getattr_maxsz)
 #define NFS4_dec_close_sz       (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
-                                op_decode_hdr_maxsz + 4)
+                                op_decode_hdr_maxsz + 4 + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_setattr_sz     (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
                                 op_encode_hdr_maxsz + 4 + \
@@ -300,30 +310,44 @@ static int nfs_stat_to_errno(int);
                                 decode_getfh_maxsz)
 #define NFS4_enc_remove_sz      (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
-                                encode_remove_maxsz)
+                                encode_remove_maxsz + \
+                                encode_getattr_maxsz)
 #define NFS4_dec_remove_sz      (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
-                                op_decode_hdr_maxsz + 5)
+                                op_decode_hdr_maxsz + 5 + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_rename_sz      (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
                                 encode_savefh_maxsz + \
                                 encode_putfh_maxsz + \
-                                encode_rename_maxsz)
+                                encode_rename_maxsz + \
+                                encode_getattr_maxsz + \
+                                encode_restorefh_maxsz + \
+                                encode_getattr_maxsz)
 #define NFS4_dec_rename_sz      (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
                                 decode_savefh_maxsz + \
                                 decode_putfh_maxsz + \
-                                decode_rename_maxsz)
+                                decode_rename_maxsz + \
+                                decode_getattr_maxsz + \
+                                decode_restorefh_maxsz + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_link_sz        (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
                                 encode_savefh_maxsz + \
                                 encode_putfh_maxsz + \
-                                encode_link_maxsz)
+                                encode_link_maxsz + \
+                                decode_getattr_maxsz + \
+                                encode_restorefh_maxsz + \
+                                decode_getattr_maxsz)
 #define NFS4_dec_link_sz        (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
                                 decode_savefh_maxsz + \
                                 decode_putfh_maxsz + \
-                                decode_link_maxsz)
+                                decode_link_maxsz + \
+                                decode_getattr_maxsz + \
+                                decode_restorefh_maxsz + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_symlink_sz     (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
                                 encode_symlink_maxsz + \
@@ -336,14 +360,20 @@ static int nfs_stat_to_errno(int);
                                 decode_getfh_maxsz)
 #define NFS4_enc_create_sz      (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
+                                encode_savefh_maxsz + \
                                 encode_create_maxsz + \
+                                encode_getfh_maxsz + \
                                 encode_getattr_maxsz + \
-                                encode_getfh_maxsz)
+                                encode_restorefh_maxsz + \
+                                encode_getattr_maxsz)
 #define NFS4_dec_create_sz      (compound_decode_hdr_maxsz + \
                                 decode_putfh_maxsz + \
+                                decode_savefh_maxsz + \
                                 decode_create_maxsz + \
+                                decode_getfh_maxsz + \
                                 decode_getattr_maxsz + \
-                                decode_getfh_maxsz)
+                                decode_restorefh_maxsz + \
+                                decode_getattr_maxsz)
 #define NFS4_enc_pathconf_sz    (compound_encode_hdr_maxsz + \
                                 encode_putfh_maxsz + \
                                 encode_getattr_maxsz)
@@ -602,10 +632,10 @@ static int encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg)
 {
         uint32_t *p;
 
-        RESERVE_SPACE(8+sizeof(arg->stateid.data));
+        RESERVE_SPACE(8+sizeof(arg->stateid->data));
         WRITE32(OP_CLOSE);
-        WRITE32(arg->seqid);
-        WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
+        WRITE32(arg->seqid->sequence->counter);
+        WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
         
         return 0;
 }
@@ -729,22 +759,18 @@ static int encode_lock(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
         WRITE64(arg->length);
         WRITE32(opargs->new_lock_owner);
         if (opargs->new_lock_owner){
-                struct nfs_open_to_lock *ol = opargs->u.open_lock;
-
                 RESERVE_SPACE(40);
-                WRITE32(ol->open_seqid);
-                WRITEMEM(&ol->open_stateid, sizeof(ol->open_stateid));
-                WRITE32(ol->lock_seqid);
-                WRITE64(ol->lock_owner.clientid);
+                WRITE32(opargs->open_seqid->sequence->counter);
+                WRITEMEM(opargs->open_stateid->data, sizeof(opargs->open_stateid->data));
+                WRITE32(opargs->lock_seqid->sequence->counter);
+                WRITE64(opargs->lock_owner.clientid);
                 WRITE32(4);
-                WRITE32(ol->lock_owner.id);
+                WRITE32(opargs->lock_owner.id);
         }
         else {
-                struct nfs_exist_lock *el = opargs->u.exist_lock;
-
                 RESERVE_SPACE(20);
-                WRITEMEM(&el->stateid, sizeof(el->stateid));
-                WRITE32(el->seqid);
+                WRITEMEM(opargs->lock_stateid->data, sizeof(opargs->lock_stateid->data));
+                WRITE32(opargs->lock_seqid->sequence->counter);
         }
 
         return 0;
@@ -775,8 +801,8 @@ static int encode_locku(struct xdr_stream *xdr, const struct nfs_lockargs *arg)
         RESERVE_SPACE(44);
         WRITE32(OP_LOCKU);
         WRITE32(arg->type);
-        WRITE32(opargs->seqid);
-        WRITEMEM(&opargs->stateid, sizeof(opargs->stateid));
+        WRITE32(opargs->seqid->sequence->counter);
+        WRITEMEM(opargs->stateid->data, sizeof(opargs->stateid->data));
         WRITE64(arg->offset);
         WRITE64(arg->length);
 
@@ -826,7 +852,7 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena
  */
         RESERVE_SPACE(8);
         WRITE32(OP_OPEN);
-        WRITE32(arg->seqid);
+        WRITE32(arg->seqid->sequence->counter);
         encode_share_access(xdr, arg->open_flags);
         RESERVE_SPACE(16);
         WRITE64(arg->clientid);
@@ -941,7 +967,7 @@ static int encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_con
         RESERVE_SPACE(8+sizeof(arg->stateid.data));
         WRITE32(OP_OPEN_CONFIRM);
         WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
-        WRITE32(arg->seqid);
+        WRITE32(arg->seqid->sequence->counter);
 
         return 0;
 }
@@ -950,10 +976,10 @@ static int encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_closea
 {
         uint32_t *p;
 
-        RESERVE_SPACE(8+sizeof(arg->stateid.data));
+        RESERVE_SPACE(8+sizeof(arg->stateid->data));
         WRITE32(OP_OPEN_DOWNGRADE);
-        WRITEMEM(arg->stateid.data, sizeof(arg->stateid.data));
-        WRITE32(arg->seqid);
+        WRITEMEM(arg->stateid->data, sizeof(arg->stateid->data));
+        WRITE32(arg->seqid->sequence->counter);
         encode_share_access(xdr, arg->open_flags);
         return 0;
 }
@@ -1117,6 +1143,17 @@ static int encode_renew(struct xdr_stream *xdr, const struct nfs4_client *client
 }
 
 static int
+encode_restorefh(struct xdr_stream *xdr)
+{
+        uint32_t *p;
+
+        RESERVE_SPACE(4);
+        WRITE32(OP_RESTOREFH);
+
+        return 0;
+}
+
+static int
 encode_setacl(struct xdr_stream *xdr, struct nfs_setaclargs *arg)
 {
         uint32_t *p;
@@ -1296,14 +1333,18 @@ static int nfs4_xdr_enc_remove(struct rpc_rqst *req, uint32_t *p, const struct n
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops = 2,
+                .nops = 3,
         };
         int status;
 
         xdr_init_encode(&xdr, &req->rq_snd_buf, p);
         encode_compound_hdr(&xdr, &hdr);
-        if ((status = encode_putfh(&xdr, args->fh)) == 0)
-                status = encode_remove(&xdr, args->name);
+        if ((status = encode_putfh(&xdr, args->fh)) != 0)
+                goto out;
+        if ((status = encode_remove(&xdr, args->name)) != 0)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
+out:
         return status;
 }
 
@@ -1314,7 +1355,7 @@ static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct n
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops = 4,
+                .nops = 7,
         };
         int status;
 
@@ -1326,7 +1367,13 @@ static int nfs4_xdr_enc_rename(struct rpc_rqst *req, uint32_t *p, const struct n
                 goto out;
         if ((status = encode_putfh(&xdr, args->new_dir)) != 0)
                 goto out;
-        status = encode_rename(&xdr, args->old_name, args->new_name);
+        if ((status = encode_rename(&xdr, args->old_name, args->new_name)) != 0)
+                goto out;
+        if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+                goto out;
+        if ((status = encode_restorefh(&xdr)) != 0)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
 }
@@ -1338,7 +1385,7 @@ static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops = 4,
+                .nops = 7,
         };
         int status;
 
@@ -1350,7 +1397,13 @@ static int nfs4_xdr_enc_link(struct rpc_rqst *req, uint32_t *p, const struct nfs
                 goto out;
         if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
                 goto out;
-        status = encode_link(&xdr, args->name);
+        if ((status = encode_link(&xdr, args->name)) != 0)
+                goto out;
+        if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+                goto out;
+        if ((status = encode_restorefh(&xdr)) != 0)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
 }
@@ -1362,7 +1415,7 @@ static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct n
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops = 4,
+                .nops = 7,
         };
         int status;
 
@@ -1370,10 +1423,16 @@ static int nfs4_xdr_enc_create(struct rpc_rqst *req, uint32_t *p, const struct n
         encode_compound_hdr(&xdr, &hdr);
         if ((status = encode_putfh(&xdr, args->dir_fh)) != 0)
                 goto out;
+        if ((status = encode_savefh(&xdr)) != 0)
+                goto out;
         if ((status = encode_create(&xdr, args)) != 0)
                 goto out;
         if ((status = encode_getfh(&xdr)) != 0)
                 goto out;
+        if ((status = encode_getfattr(&xdr, args->bitmask)) != 0)
+                goto out;
+        if ((status = encode_restorefh(&xdr)) != 0)
+                goto out;
         status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
@@ -1412,7 +1471,7 @@ static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_clos
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops   = 2,
+                .nops   = 3,
         };
         int status;
 
@@ -1422,6 +1481,9 @@ static int nfs4_xdr_enc_close(struct rpc_rqst *req, uint32_t *p, struct nfs_clos
         if(status)
                 goto out;
         status = encode_close(&xdr, args);
+        if (status != 0)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
 }
@@ -1433,15 +1495,21 @@ static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_opena
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops = 4,
+                .nops = 7,
         };
         int status;
 
+        status = nfs_wait_on_sequence(args->seqid, req->rq_task);
+        if (status != 0)
+                goto out;
         xdr_init_encode(&xdr, &req->rq_snd_buf, p);
         encode_compound_hdr(&xdr, &hdr);
         status = encode_putfh(&xdr, args->fh);
         if (status)
                 goto out;
+        status = encode_savefh(&xdr);
+        if (status)
+                goto out;
         status = encode_open(&xdr, args);
         if (status)
                 goto out;
@@ -1449,6 +1517,12 @@ static int nfs4_xdr_enc_open(struct rpc_rqst *req, uint32_t *p, struct nfs_opena
         if (status)
                 goto out;
         status = encode_getfattr(&xdr, args->bitmask);
+        if (status)
+                goto out;
+        status = encode_restorefh(&xdr);
+        if (status)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
 }
@@ -1464,6 +1538,9 @@ static int nfs4_xdr_enc_open_confirm(struct rpc_rqst *req, uint32_t *p, struct n
         };
         int status;
 
+        status = nfs_wait_on_sequence(args->seqid, req->rq_task);
+        if (status != 0)
+                goto out;
         xdr_init_encode(&xdr, &req->rq_snd_buf, p);
         encode_compound_hdr(&xdr, &hdr);
         status = encode_putfh(&xdr, args->fh);
@@ -1485,6 +1562,9 @@ static int nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, uint32_t *p, struct nf
         };
         int status;
 
+        status = nfs_wait_on_sequence(args->seqid, req->rq_task);
+        if (status != 0)
+                goto out;
         xdr_init_encode(&xdr, &req->rq_snd_buf, p);
         encode_compound_hdr(&xdr, &hdr);
         status = encode_putfh(&xdr, args->fh);
@@ -1502,7 +1582,7 @@ static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops   = 2,
+                .nops   = 3,
         };
         int status;
 
@@ -1512,6 +1592,9 @@ static int nfs4_xdr_enc_open_downgrade(struct rpc_rqst *req, uint32_t *p, struct
         if (status)
                 goto out;
         status = encode_open_downgrade(&xdr, args);
+        if (status != 0)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
 }
@@ -1525,8 +1608,15 @@ static int nfs4_xdr_enc_lock(struct rpc_rqst *req, uint32_t *p, struct nfs_locka
         struct compound_hdr hdr = {
                 .nops   = 2,
         };
+        struct nfs_lock_opargs *opargs = args->u.lock;
         int status;
 
+        status = nfs_wait_on_sequence(opargs->lock_seqid, req->rq_task);
+        if (status != 0)
+                goto out;
+        /* Do we need to do an open_to_lock_owner? */
+        if (opargs->lock_seqid->sequence->flags & NFS_SEQID_CONFIRMED)
+                opargs->new_lock_owner = 0;
         xdr_init_encode(&xdr, &req->rq_snd_buf, p);
         encode_compound_hdr(&xdr, &hdr);
         status = encode_putfh(&xdr, args->fh);
@@ -1713,7 +1803,7 @@ static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writ
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops = 2,
+                .nops = 3,
         };
         int status;
 
@@ -1723,6 +1813,9 @@ static int nfs4_xdr_enc_write(struct rpc_rqst *req, uint32_t *p, struct nfs_writ
         if (status)
                 goto out;
         status = encode_write(&xdr, args);
+        if (status)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
 }
@@ -1734,7 +1827,7 @@ static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_wri
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr = {
-                .nops = 2,
+                .nops = 3,
         };
         int status;
 
@@ -1744,6 +1837,9 @@ static int nfs4_xdr_enc_commit(struct rpc_rqst *req, uint32_t *p, struct nfs_wri
         if (status)
                 goto out;
         status = encode_commit(&xdr, args);
+        if (status)
+                goto out;
+        status = encode_getfattr(&xdr, args->bitmask);
 out:
         return status;
 }
@@ -2670,8 +2766,7 @@ static int decode_server_caps(struct xdr_stream *xdr, struct nfs4_server_caps_re
                 goto xdr_error;
         status = verify_attr_len(xdr, savep, attrlen);
 xdr_error:
-        if (status != 0)
-                printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+        dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
         return status;
 }
         
@@ -2704,8 +2799,7 @@ static int decode_statfs(struct xdr_stream *xdr, struct nfs_fsstat *fsstat)
 
         status = verify_attr_len(xdr, savep, attrlen);
 xdr_error:
-        if (status != 0)
-                printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+        dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
         return status;
 }
 
@@ -2730,8 +2824,7 @@ static int decode_pathconf(struct xdr_stream *xdr, struct nfs_pathconf *pathconf
 
         status = verify_attr_len(xdr, savep, attrlen);
 xdr_error:
-        if (status != 0)
-                printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+        dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
         return status;
 }
 
@@ -2787,13 +2880,10 @@ static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, cons
                 goto xdr_error;
         if ((status = decode_attr_time_modify(xdr, bitmap, &fattr->mtime)) != 0)
                 goto xdr_error;
-        if ((status = verify_attr_len(xdr, savep, attrlen)) == 0) {
+        if ((status = verify_attr_len(xdr, savep, attrlen)) == 0)
                 fattr->valid = NFS_ATTR_FATTR | NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4;
-                fattr->timestamp = jiffies;
-        }
 xdr_error:
-        if (status != 0)
-                printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+        dprintk("%s: xdr returned %d\n", __FUNCTION__, -status);
         return status;
 }
 
@@ -2826,8 +2916,7 @@ static int decode_fsinfo(struct xdr_stream *xdr, struct nfs_fsinfo *fsinfo)
 
         status = verify_attr_len(xdr, savep, attrlen);
 xdr_error:
-        if (status != 0)
-                printk(KERN_NOTICE "%s: xdr error %d!\n", __FUNCTION__, -status);
+        dprintk("%s: xdr returned %d!\n", __FUNCTION__, -status);
         return status;
 }
 
@@ -2890,8 +2979,8 @@ static int decode_lock(struct xdr_stream *xdr, struct nfs_lockres *res)
 
         status = decode_op_hdr(xdr, OP_LOCK);
         if (status == 0) {
-                READ_BUF(sizeof(nfs4_stateid));
-                COPYMEM(&res->u.stateid, sizeof(res->u.stateid));
+                READ_BUF(sizeof(res->u.stateid.data));
+                COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
         } else if (status == -NFS4ERR_DENIED)
                 return decode_lock_denied(xdr, &res->u.denied);
         return status;
@@ -2913,8 +3002,8 @@ static int decode_locku(struct xdr_stream *xdr, struct nfs_lockres *res)
 
         status = decode_op_hdr(xdr, OP_LOCKU);
         if (status == 0) {
-                READ_BUF(sizeof(nfs4_stateid));
-                COPYMEM(&res->u.stateid, sizeof(res->u.stateid));
+                READ_BUF(sizeof(res->u.stateid.data));
+                COPYMEM(res->u.stateid.data, sizeof(res->u.stateid.data));
         }
         return status;
 }
@@ -2994,7 +3083,7 @@ static int decode_open(struct xdr_stream *xdr, struct nfs_openres *res)
         p += bmlen;
         return decode_delegation(xdr, res);
 xdr_error:
-        printk(KERN_NOTICE "%s: xdr error!\n", __FUNCTION__);
+        dprintk("%s: Bitmap too large! Length = %u\n", __FUNCTION__, bmlen);
         return -EIO;
 }
 
@@ -3208,6 +3297,12 @@ static int decode_renew(struct xdr_stream *xdr)
         return decode_op_hdr(xdr, OP_RENEW);
 }
 
+static int
+decode_restorefh(struct xdr_stream *xdr)
+{
+        return decode_op_hdr(xdr, OP_RESTOREFH);
+}
+
 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
                 size_t *acl_len)
 {
@@ -3243,7 +3338,8 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
                 if (attrlen <= *acl_len)
                         xdr_read_pages(xdr, attrlen);
                 *acl_len = attrlen;
-        }
+        } else
+                status = -EOPNOTSUPP;
 
 out:
         return status;
@@ -3352,6 +3448,9 @@ static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp, uint32_t *p, stru
         if (status)
                 goto out;
         status = decode_open_downgrade(&xdr, res);
+        if (status != 0)
+                goto out;
+        decode_getfattr(&xdr, res->fattr, res->server);
 out:
         return status;
 }
@@ -3424,7 +3523,7 @@ out:
 /*
  * Decode REMOVE response
  */
-static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo)
+static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_remove_res *res)
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr;
@@ -3433,8 +3532,11 @@ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_
         xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
         if ((status = decode_compound_hdr(&xdr, &hdr)) != 0)
                 goto out;
-        if ((status = decode_putfh(&xdr)) == 0)
-                status = decode_remove(&xdr, cinfo);
+        if ((status = decode_putfh(&xdr)) != 0)
+                goto out;
+        if ((status = decode_remove(&xdr, &res->cinfo)) != 0)
+                goto out;
+        decode_getfattr(&xdr, res->dir_attr, res->server);
 out:
         return status;
 }
@@ -3457,7 +3559,14 @@ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_
                 goto out;
         if ((status = decode_putfh(&xdr)) != 0)
                 goto out;
-        status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo);
+        if ((status = decode_rename(&xdr, &res->old_cinfo, &res->new_cinfo)) != 0)
+                goto out;
+        /* Current FH is target directory */
+        if (decode_getfattr(&xdr, res->new_fattr, res->server) != 0)
+                goto out;
+        if ((status = decode_restorefh(&xdr)) != 0)
+                goto out;
+        decode_getfattr(&xdr, res->old_fattr, res->server);
 out:
         return status;
 }
@@ -3465,7 +3574,7 @@ out:
 /*
  * Decode LINK response
  */
-static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_change_info *cinfo)
+static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_link_res *res)
 {
         struct xdr_stream xdr;
         struct compound_hdr hdr;
@@ -3480,7 +3589,17 @@ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_ch
                 goto out;
         if ((status = decode_putfh(&xdr)) != 0)
                 goto out;
-        status = decode_link(&xdr, cinfo);
+        if ((status = decode_link(&xdr, &res->cinfo)) != 0)
+                goto out;
+        /*
+         * Note order: OP_LINK leaves the directory as the current
+         *             filehandle.
+         */
+        if (decode_getfattr(&xdr, res->dir_attr, res->server) != 0)
+                goto out;
+        if ((status = decode_restorefh(&xdr)) != 0)
+                goto out;
+        decode_getfattr(&xdr, res->fattr, res->server);
 out:
         return status;
 }
@@ -3499,13 +3618,17 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_
                 goto out;
         if ((status = decode_putfh(&xdr)) != 0)
                 goto out;
+        if ((status = decode_savefh(&xdr)) != 0)
+                goto out;
         if ((status = decode_create(&xdr,&res->dir_cinfo)) != 0)
                 goto out;
         if ((status = decode_getfh(&xdr, res->fh)) != 0)
                 goto out;
-        status = decode_getfattr(&xdr, res->fattr, res->server);
-        if (status == NFS4ERR_DELAY)
-                status = 0;
+        if (decode_getfattr(&xdr, res->fattr, res->server) != 0)
+                goto out;
+        if ((status = decode_restorefh(&xdr)) != 0)
+                goto out;
+        decode_getfattr(&xdr, res->dir_fattr, res->server);
 out:
         return status;
 }
@@ -3623,6 +3746,15 @@ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_cl
         if (status)
                 goto out;
         status = decode_close(&xdr, res);
+        if (status != 0)
+                goto out;
+        /*
+         * Note: Server may do delete on close for this file
+         *      in which case the getattr call will fail with
+         *      an ESTALE error. Shouldn't be a problem,
+         *      though, since fattr->valid will remain unset.
+         */
+        decode_getfattr(&xdr, res->fattr, res->server);
 out:
         return status;
 }
@@ -3643,15 +3775,20 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_ope
         status = decode_putfh(&xdr);
         if (status)
                 goto out;
+        status = decode_savefh(&xdr);
+        if (status)
+                goto out;
         status = decode_open(&xdr, res);
         if (status)
                 goto out;
         status = decode_getfh(&xdr, &res->fh);
         if (status)
                 goto out;
-        status = decode_getfattr(&xdr, res->f_attr, res->server);
-        if (status == NFS4ERR_DELAY)
-                status = 0;
+        if (decode_getfattr(&xdr, res->f_attr, res->server) != 0)
+                goto out;
+        if ((status = decode_restorefh(&xdr)) != 0)
+                goto out;
+        decode_getfattr(&xdr, res->dir_attr, res->server);
 out:
         return status;
 }
@@ -3869,6 +4006,9 @@ static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_wr
         if (status)
                 goto out;
         status = decode_write(&xdr, res);
+        if (status)
+                goto out;
+        decode_getfattr(&xdr, res->fattr, res->server);
         if (!status)
                 status = res->count;
 out:
@@ -3892,6 +4032,9 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, uint32_t *p, struct nfs_w
         if (status)
                 goto out;
         status = decode_commit(&xdr, res);
+        if (status)
+                goto out;
+        decode_getfattr(&xdr, res->fattr, res->server);
 out:
         return status;
 }
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index be23c3fb9260..a48a003242c0 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -61,7 +61,7 @@ nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
         int status;
 
         dprintk("%s: call getattr\n", __FUNCTION__);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call(server->client_sys, NFSPROC_GETATTR, fhandle, fattr, 0);
         dprintk("%s: reply getattr: %d\n", __FUNCTION__, status);
         if (status)
@@ -93,7 +93,7 @@ nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("NFS call  getattr\n");
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call(server->client, NFSPROC_GETATTR,
                                 fhandle, fattr, 0);
         dprintk("NFS reply getattr: %d\n", status);
@@ -112,7 +112,7 @@ nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
         int     status;
 
         dprintk("NFS call  setattr\n");
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call(NFS_CLIENT(inode), NFSPROC_SETATTR, &arg, fattr, 0);
         if (status == 0)
                 nfs_setattr_update_inode(inode, sattr);
@@ -136,7 +136,7 @@ nfs_proc_lookup(struct inode *dir, struct qstr *name,
         int                     status;
 
         dprintk("NFS call  lookup %s\n", name->name);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call(NFS_CLIENT(dir), NFSPROC_LOOKUP, &arg, &res, 0);
         dprintk("NFS reply lookup: %d\n", status);
         return status;
@@ -174,7 +174,7 @@ static int nfs_proc_read(struct nfs_read_data *rdata)
 
         dprintk("NFS call  read %d @ %Ld\n", rdata->args.count,
                         (long long) rdata->args.offset);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
         if (status >= 0) {
                 nfs_refresh_inode(inode, fattr);
@@ -203,10 +203,10 @@ static int nfs_proc_write(struct nfs_write_data *wdata)
 
         dprintk("NFS call  write %d @ %Ld\n", wdata->args.count,
                         (long long) wdata->args.offset);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         status = rpc_call_sync(NFS_CLIENT(inode), &msg, flags);
         if (status >= 0) {
-                nfs_refresh_inode(inode, fattr);
+                nfs_post_op_update_inode(inode, fattr);
                 wdata->res.count = wdata->args.count;
                 wdata->verf.committed = NFS_FILE_SYNC;
         }
@@ -216,7 +216,7 @@ static int nfs_proc_write(struct nfs_write_data *wdata)
 
 static int
 nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
-                int flags)
+                int flags, struct nameidata *nd)
 {
         struct nfs_fh           fhandle;
         struct nfs_fattr        fattr;
@@ -232,7 +232,7 @@ nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         };
         int                     status;
 
-        fattr.valid = 0;
+        nfs_fattr_init(&fattr);
         dprintk("NFS call  create %s\n", dentry->d_name.name);
         status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
         if (status == 0)
@@ -273,12 +273,13 @@ nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
                 sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */
         }
 
-        fattr.valid = 0;
+        nfs_fattr_init(&fattr);
         status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
+        nfs_mark_for_revalidate(dir);
 
         if (status == -EINVAL && S_ISFIFO(mode)) {
                 sattr->ia_mode = mode;
-                fattr.valid = 0;
+                nfs_fattr_init(&fattr);
                 status = rpc_call(NFS_CLIENT(dir), NFSPROC_CREATE, &arg, &res, 0);
         }
         if (status == 0)
@@ -305,6 +306,7 @@ nfs_proc_remove(struct inode *dir, struct qstr *name)
 
         dprintk("NFS call  remove %s\n", name->name);
         status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
+        nfs_mark_for_revalidate(dir);
 
         dprintk("NFS reply remove: %d\n", status);
         return status;
@@ -331,8 +333,10 @@ nfs_proc_unlink_done(struct dentry *dir, struct rpc_task *task)
 {
         struct rpc_message *msg = &task->tk_msg;
         
-        if (msg->rpc_argp)
+        if (msg->rpc_argp) {
+                nfs_mark_for_revalidate(dir->d_inode);
                 kfree(msg->rpc_argp);
+        }
         return 0;
 }
 
@@ -352,6 +356,8 @@ nfs_proc_rename(struct inode *old_dir, struct qstr *old_name,
 
         dprintk("NFS call  rename %s -> %s\n", old_name->name, new_name->name);
         status = rpc_call(NFS_CLIENT(old_dir), NFSPROC_RENAME, &arg, NULL, 0);
+        nfs_mark_for_revalidate(old_dir);
+        nfs_mark_for_revalidate(new_dir);
         dprintk("NFS reply rename: %d\n", status);
         return status;
 }
@@ -369,6 +375,7 @@ nfs_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
 
         dprintk("NFS call  link %s\n", name->name);
         status = rpc_call(NFS_CLIENT(inode), NFSPROC_LINK, &arg, NULL, 0);
+        nfs_mark_for_revalidate(dir);
         dprintk("NFS reply link: %d\n", status);
         return status;
 }
@@ -391,9 +398,10 @@ nfs_proc_symlink(struct inode *dir, struct qstr *name, struct qstr *path,
         if (path->len > NFS2_MAXPATHLEN)
                 return -ENAMETOOLONG;
         dprintk("NFS call  symlink %s -> %s\n", name->name, path->name);
-        fattr->valid = 0;
+        nfs_fattr_init(fattr);
         fhandle->size = 0;
         status = rpc_call(NFS_CLIENT(dir), NFSPROC_SYMLINK, &arg, NULL, 0);
+        nfs_mark_for_revalidate(dir);
         dprintk("NFS reply symlink: %d\n", status);
         return status;
 }
@@ -416,8 +424,9 @@ nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
         int                     status;
 
         dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
-        fattr.valid = 0;
+        nfs_fattr_init(&fattr);
         status = rpc_call(NFS_CLIENT(dir), NFSPROC_MKDIR, &arg, &res, 0);
+        nfs_mark_for_revalidate(dir);
         if (status == 0)
                 status = nfs_instantiate(dentry, &fhandle, &fattr);
         dprintk("NFS reply mkdir: %d\n", status);
@@ -436,6 +445,7 @@ nfs_proc_rmdir(struct inode *dir, struct qstr *name)
 
         dprintk("NFS call  rmdir %s\n", name->name);
         status = rpc_call(NFS_CLIENT(dir), NFSPROC_RMDIR, &arg, NULL, 0);
+        nfs_mark_for_revalidate(dir);
         dprintk("NFS reply rmdir: %d\n", status);
         return status;
 }
@@ -484,7 +494,7 @@ nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("NFS call  statfs\n");
-        stat->fattr->valid = 0;
+        nfs_fattr_init(stat->fattr);
         status = rpc_call(server->client, NFSPROC_STATFS, fhandle, &fsinfo, 0);
         dprintk("NFS reply statfs: %d\n", status);
         if (status)
@@ -507,7 +517,7 @@ nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
         int     status;
 
         dprintk("NFS call  fsinfo\n");
-        info->fattr->valid = 0;
+        nfs_fattr_init(info->fattr);
         status = rpc_call(server->client, NFSPROC_STATFS, fhandle, &fsinfo, 0);
         dprintk("NFS reply fsinfo: %d\n", status);
         if (status)
@@ -579,7 +589,7 @@ nfs_write_done(struct rpc_task *task)
         struct nfs_write_data *data = (struct nfs_write_data *) task->tk_calldata;
 
         if (task->tk_status >= 0)
-                nfs_refresh_inode(data->inode, data->res.fattr);
+                nfs_post_op_update_inode(data->inode, data->res.fattr);
         nfs_writeback_done(task);
 }
 
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 9758ebd49905..43b03b19731b 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -215,6 +215,7 @@ static void nfs_read_rpcsetup(struct nfs_page *req, struct nfs_read_data *data,
         data->res.fattr   = &data->fattr;
         data->res.count   = count;
         data->res.eof     = 0;
+        nfs_fattr_init(&data->fattr);
 
         NFS_PROTO(inode)->read_setup(data);
 
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 5130eda231d7..819a65f5071f 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -870,6 +870,7 @@ static void nfs_write_rpcsetup(struct nfs_page *req,
         data->res.fattr   = &data->fattr;
         data->res.count   = count;
         data->res.verf    = &data->verf;
+        nfs_fattr_init(&data->fattr);
 
         NFS_PROTO(inode)->write_setup(data, how);
 
@@ -1237,6 +1238,7 @@ static void nfs_commit_rpcsetup(struct list_head *head,
         data->res.count   = 0;
         data->res.fattr   = &data->fattr;
         data->res.verf    = &data->verf;
+        nfs_fattr_init(&data->fattr);
         
         NFS_PROTO(inode)->commit_setup(data, how);
 
diff --git a/fs/open.c b/fs/open.c
index f0d90cf0495c..8d06ec911fd9 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -739,7 +739,8 @@ asmlinkage long sys_fchown(unsigned int fd, uid_t user, gid_t group)
 }
 
 static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
-                                        int flags, struct file *f)
+                                        int flags, struct file *f,
+                                        int (*open)(struct inode *, struct file *))
 {
         struct inode *inode;
         int error;
@@ -761,11 +762,14 @@ static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
         f->f_op = fops_get(inode->i_fop);
         file_move(f, &inode->i_sb->s_files);
 
-        if (f->f_op && f->f_op->open) {
-                error = f->f_op->open(inode,f);
+        if (!open && f->f_op)
+                open = f->f_op->open;
+        if (open) {
+                error = open(inode, f);
                 if (error)
                         goto cleanup_all;
         }
+
         f->f_flags &= ~(O_CREAT | O_EXCL | O_NOCTTY | O_TRUNC);
 
         file_ra_state_init(&f->f_ra, f->f_mapping->host->i_mapping);
@@ -814,28 +818,75 @@ struct file *filp_open(const char * filename, int flags, int mode)
 {
         int namei_flags, error;
         struct nameidata nd;
-        struct file *f;
 
         namei_flags = flags;
         if ((namei_flags+1) & O_ACCMODE)
                 namei_flags++;
-        if (namei_flags & O_TRUNC)
-                namei_flags |= 2;
-
-        error = -ENFILE;
-        f = get_empty_filp();
-        if (f == NULL)
-                return ERR_PTR(error);
 
         error = open_namei(filename, namei_flags, mode, &nd);
         if (!error)
-                return __dentry_open(nd.dentry, nd.mnt, flags, f);
+                return nameidata_to_filp(&nd, flags);
 
-        put_filp(f);
         return ERR_PTR(error);
 }
 EXPORT_SYMBOL(filp_open);
 
+/**
+ * lookup_instantiate_filp - instantiates the open intent filp
+ * @nd: pointer to nameidata
+ * @dentry: pointer to dentry
+ * @open: open callback
+ *
+ * Helper for filesystems that want to use lookup open intents and pass back
+ * a fully instantiated struct file to the caller.
+ * This function is meant to be called from within a filesystem's
+ * lookup method.
+ * Note that in case of error, nd->intent.open.file is destroyed, but the
+ * path information remains valid.
+ * If the open callback is set to NULL, then the standard f_op->open()
+ * filesystem callback is substituted.
+ */
+struct file *lookup_instantiate_filp(struct nameidata *nd, struct dentry *dentry,
+                int (*open)(struct inode *, struct file *))
+{
+        if (IS_ERR(nd->intent.open.file))
+                goto out;
+        if (IS_ERR(dentry))
+                goto out_err;
+        nd->intent.open.file = __dentry_open(dget(dentry), mntget(nd->mnt),
+                                             nd->intent.open.flags - 1,
+                                             nd->intent.open.file,
+                                             open);
+out:
+        return nd->intent.open.file;
+out_err:
+        release_open_intent(nd);
+        nd->intent.open.file = (struct file *)dentry;
+        goto out;
+}
+EXPORT_SYMBOL_GPL(lookup_instantiate_filp);
+
+/**
+ * nameidata_to_filp - convert a nameidata to an open filp.
+ * @nd: pointer to nameidata
+ * @flags: open flags
+ *
+ * Note that this function destroys the original nameidata
+ */
+struct file *nameidata_to_filp(struct nameidata *nd, int flags)
+{
+        struct file *filp;
+
+        /* Pick up the filp from the open intent */
+        filp = nd->intent.open.file;
+        /* Has the filesystem initialised the file for us? */
+        if (filp->f_dentry == NULL)
+                filp = __dentry_open(nd->dentry, nd->mnt, flags, filp, NULL);
+        else
+                path_release(nd);
+        return filp;
+}
+
 struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
 {
         int error;
@@ -846,7 +897,7 @@ struct file *dentry_open(struct dentry *dentry, struct vfsmount *mnt, int flags)
         if (f == NULL)
                 return ERR_PTR(error);
 
-        return __dentry_open(dentry, mnt, flags, f);
+        return __dentry_open(dentry, mnt, flags, f, NULL);
 }
 EXPORT_SYMBOL(dentry_open);
 
diff --git a/fs/partitions/check.c b/fs/partitions/check.c
index 77e178f13162..9c06c5434ec4 100644
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -192,6 +192,7 @@ check_partition(struct gendisk *hd, struct block_device *bdev)
 struct part_attribute {
         struct attribute attr;
         ssize_t (*show)(struct hd_struct *,char *);
+        ssize_t (*store)(struct hd_struct *,const char *, size_t);
 };
 
 static ssize_t 
@@ -201,14 +202,33 @@ part_attr_show(struct kobject * kobj, struct attribute * attr, char * page)
         struct part_attribute * part_attr = container_of(attr,struct part_attribute,attr);
         ssize_t ret = 0;
         if (part_attr->show)
-                ret = part_attr->show(p,page);
+                ret = part_attr->show(p, page);
+        return ret;
+}
+static ssize_t
+part_attr_store(struct kobject * kobj, struct attribute * attr,
+                const char *page, size_t count)
+{
+        struct hd_struct * p = container_of(kobj,struct hd_struct,kobj);
+        struct part_attribute * part_attr = container_of(attr,struct part_attribute,attr);
+        ssize_t ret = 0;
+
+        if (part_attr->store)
+                ret = part_attr->store(p, page, count);
         return ret;
 }
 
 static struct sysfs_ops part_sysfs_ops = {
         .show   =       part_attr_show,
+        .store  =       part_attr_store,
 };
 
+static ssize_t part_uevent_store(struct hd_struct * p,
+                                 const char *page, size_t count)
+{
+        kobject_hotplug(&p->kobj, KOBJ_ADD);
+        return count;
+}
 static ssize_t part_dev_read(struct hd_struct * p, char *page)
 {
         struct gendisk *disk = container_of(p->kobj.parent,struct gendisk,kobj);
@@ -229,6 +249,10 @@ static ssize_t part_stat_read(struct hd_struct * p, char *page)
                        p->reads, (unsigned long long)p->read_sectors,
                        p->writes, (unsigned long long)p->write_sectors);
 }
+static struct part_attribute part_attr_uevent = {
+        .attr = {.name = "uevent", .mode = S_IWUSR },
+        .store  = part_uevent_store
+};
 static struct part_attribute part_attr_dev = {
         .attr = {.name = "dev", .mode = S_IRUGO },
         .show   = part_dev_read
@@ -247,6 +271,7 @@ static struct part_attribute part_attr_stat = {
 };
 
 static struct attribute * default_attrs[] = {
+        &part_attr_uevent.attr,
         &part_attr_dev.attr,
         &part_attr_start.attr,
         &part_attr_size.attr,
@@ -430,7 +455,7 @@ void del_gendisk(struct gendisk *disk)
         disk->flags &= ~GENHD_FL_UP;
         unlink_gendisk(disk);
         disk_stat_set_all(disk, 0);
-        disk->stamp = disk->stamp_idle = 0;
+        disk->stamp = 0;
 
         devfs_remove_disk(disk);
 
diff --git a/fs/proc/array.c b/fs/proc/array.c
index d84eecacbeaf..3e1239e4b303 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -438,7 +438,7 @@ static int do_task_stat(struct task_struct *task, char * buffer, int whole)
                 jiffies_to_clock_t(it_real_value),
                 start_time,
                 vsize,
-                mm ? get_mm_counter(mm, rss) : 0, /* you might want to shift this left 3 */
+                mm ? get_mm_rss(mm) : 0,
                 rsslim,
                 mm ? mm->start_code : 0,
                 mm ? mm->end_code : 0,
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 8a8c34461d48..b638fb500743 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -533,7 +533,7 @@ static void proc_kill_inodes(struct proc_dir_entry *de)
          */
         file_list_lock();
         list_for_each(p, &sb->s_files) {
-                struct file * filp = list_entry(p, struct file, f_list);
+                struct file * filp = list_entry(p, struct file, f_u.fu_list);
                 struct dentry * dentry = filp->f_dentry;
                 struct inode * inode;
                 struct file_operations *fops;
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index effa6c0c467a..e6a818a93f3d 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -156,10 +156,13 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
 
         WARN_ON(de && de->deleted);
 
+        if (de != NULL && !try_module_get(de->owner))
+                goto out_mod;
+
         inode = iget(sb, ino);
         if (!inode)
-                goto out_fail;
-        
+                goto out_ino;
+
         PROC_I(inode)->pde = de;
         if (de) {
                 if (de->mode) {
@@ -171,20 +174,20 @@ struct inode *proc_get_inode(struct super_block *sb, unsigned int ino,
                         inode->i_size = de->size;
                 if (de->nlink)
                         inode->i_nlink = de->nlink;
-                if (!try_module_get(de->owner))
-                        goto out_fail;
                 if (de->proc_iops)
                         inode->i_op = de->proc_iops;
                 if (de->proc_fops)
                         inode->i_fop = de->proc_fops;
         }
 
-out:
         return inode;
 
-out_fail:
+out_ino:
+        if (de != NULL)
+                module_put(de->owner);
+out_mod:
         de_put(de);
-        goto out;
+        return NULL;
 }                       
 
 int proc_fill_super(struct super_block *s, void *data, int silent)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index c7ef3e48e35b..d2fa42006d8f 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -14,22 +14,41 @@
 char *task_mem(struct mm_struct *mm, char *buffer)
 {
         unsigned long data, text, lib;
+        unsigned long hiwater_vm, total_vm, hiwater_rss, total_rss;
+
+        /*
+         * Note: to minimize their overhead, mm maintains hiwater_vm and
+         * hiwater_rss only when about to *lower* total_vm or rss.  Any
+         * collector of these hiwater stats must therefore get total_vm
+         * and rss too, which will usually be the higher.  Barriers? not
+         * worth the effort, such snapshots can always be inconsistent.
+         */
+        hiwater_vm = total_vm = mm->total_vm;
+        if (hiwater_vm < mm->hiwater_vm)
+                hiwater_vm = mm->hiwater_vm;
+        hiwater_rss = total_rss = get_mm_rss(mm);
+        if (hiwater_rss < mm->hiwater_rss)
+                hiwater_rss = mm->hiwater_rss;
 
         data = mm->total_vm - mm->shared_vm - mm->stack_vm;
         text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK)) >> 10;
         lib = (mm->exec_vm << (PAGE_SHIFT-10)) - text;
         buffer += sprintf(buffer,
+                "VmPeak:\t%8lu kB\n"
                 "VmSize:\t%8lu kB\n"
                 "VmLck:\t%8lu kB\n"
+                "VmHWM:\t%8lu kB\n"
                 "VmRSS:\t%8lu kB\n"
                 "VmData:\t%8lu kB\n"
                 "VmStk:\t%8lu kB\n"
                 "VmExe:\t%8lu kB\n"
                 "VmLib:\t%8lu kB\n"
                 "VmPTE:\t%8lu kB\n",
-                (mm->total_vm - mm->reserved_vm) << (PAGE_SHIFT-10),
+                hiwater_vm << (PAGE_SHIFT-10),
+                (total_vm - mm->reserved_vm) << (PAGE_SHIFT-10),
                 mm->locked_vm << (PAGE_SHIFT-10),
-                get_mm_counter(mm, rss) << (PAGE_SHIFT-10),
+                hiwater_rss << (PAGE_SHIFT-10),
+                total_rss << (PAGE_SHIFT-10),
                 data << (PAGE_SHIFT-10),
                 mm->stack_vm << (PAGE_SHIFT-10), text, lib,
                 (PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10);
@@ -44,13 +63,11 @@ unsigned long task_vsize(struct mm_struct *mm)
 int task_statm(struct mm_struct *mm, int *shared, int *text,
                int *data, int *resident)
 {
-        int rss = get_mm_counter(mm, rss);
-
-        *shared = rss - get_mm_counter(mm, anon_rss);
+        *shared = get_mm_counter(mm, file_rss);
         *text = (PAGE_ALIGN(mm->end_code) - (mm->start_code & PAGE_MASK))
                                                                 >> PAGE_SHIFT;
         *data = mm->total_vm - mm->shared_vm;
-        *resident = rss;
+        *resident = *shared + get_mm_counter(mm, anon_rss);
         return mm->total_vm;
 }
 
@@ -186,13 +203,14 @@ static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
                                 struct mem_size_stats *mss)
 {
         pte_t *pte, ptent;
+        spinlock_t *ptl;
         unsigned long pfn;
         struct page *page;
 
-        pte = pte_offset_map(pmd, addr);
+        pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
         do {
                 ptent = *pte;
-                if (pte_none(ptent) || !pte_present(ptent))
+                if (!pte_present(ptent))
                         continue;
 
                 mss->resident += PAGE_SIZE;
@@ -213,8 +231,8 @@ static void smaps_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
                                 mss->private_clean += PAGE_SIZE;
                 }
         } while (pte++, addr += PAGE_SIZE, addr != end);
-        pte_unmap(pte - 1);
-        cond_resched_lock(&vma->vm_mm->page_table_lock);
+        pte_unmap_unlock(pte - 1, ptl);
+        cond_resched();
 }
 
 static inline void smaps_pmd_range(struct vm_area_struct *vma, pud_t *pud,
@@ -268,17 +286,11 @@ static inline void smaps_pgd_range(struct vm_area_struct *vma,
 static int show_smap(struct seq_file *m, void *v)
 {
         struct vm_area_struct *vma = v;
-        struct mm_struct *mm = vma->vm_mm;
         struct mem_size_stats mss;
 
         memset(&mss, 0, sizeof mss);
-
-        if (mm) {
-                spin_lock(&mm->page_table_lock);
+        if (vma->vm_mm)
                 smaps_pgd_range(vma, vma->vm_start, vma->vm_end, &mss);
-                spin_unlock(&mm->page_table_lock);
-        }
-
         return show_map_internal(m, v, &mss);
 }
 
@@ -407,7 +419,6 @@ static struct numa_maps *get_numa_maps(const struct vm_area_struct *vma)
         for_each_node(i)
                 md->node[i] =0;
 
-        spin_lock(&mm->page_table_lock);
         for (vaddr = vma->vm_start; vaddr < vma->vm_end; vaddr += PAGE_SIZE) {
                 page = follow_page(mm, vaddr, 0);
                 if (page) {
@@ -422,8 +433,8 @@ static struct numa_maps *get_numa_maps(const struct vm_area_struct *vma)
                                 md->anon++;
                         md->node[page_to_nid(page)]++;
                 }
+                cond_resched();
         }
-        spin_unlock(&mm->page_table_lock);
         return md;
 }
 
@@ -469,7 +480,7 @@ static int show_numa_map(struct seq_file *m, void *v)
                 seq_printf(m, " interleave={");
                 first = 1;
                 for_each_node(n) {
-                        if (test_bit(n, pol->v.nodes)) {
+                        if (node_isset(n, pol->v.nodes)) {
                                 if (!first)
                                         seq_putc(m,',');
                                 else
diff --git a/fs/reiserfs/fix_node.c b/fs/reiserfs/fix_node.c
index 2706e2adffab..45829889dcdc 100644
--- a/fs/reiserfs/fix_node.c
+++ b/fs/reiserfs/fix_node.c
@@ -2022,7 +2022,7 @@ static int get_neighbors(struct tree_balance *p_s_tb, int n_h)
 }
 
 #ifdef CONFIG_REISERFS_CHECK
-void *reiserfs_kmalloc(size_t size, int flags, struct super_block *s)
+void *reiserfs_kmalloc(size_t size, gfp_t flags, struct super_block *s)
 {
         void *vp;
         static size_t malloced;
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index d76ee6c4f9b8..5f82352b97e1 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2842,7 +2842,7 @@ static int reiserfs_set_page_dirty(struct page *page)
  * even in -o notail mode, we can't be sure an old mount without -o notail
  * didn't create files with tails.
  */
-static int reiserfs_releasepage(struct page *page, int unused_gfp_flags)
+static int reiserfs_releasepage(struct page *page, gfp_t unused_gfp_flags)
 {
         struct inode *inode = page->mapping->host;
         struct reiserfs_journal *j = SB_JOURNAL(inode->i_sb);
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 44b02fc02ebe..42afb5bef111 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -1024,12 +1024,8 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                                 strcpy(REISERFS_SB(s)->s_qf_names[qtype], arg);
                                 *mount_options |= 1 << REISERFS_QUOTA;
                         } else {
-                                if (REISERFS_SB(s)->s_qf_names[qtype]) {
-                                        kfree(REISERFS_SB(s)->
-                                              s_qf_names[qtype]);
-                                        REISERFS_SB(s)->s_qf_names[qtype] =
-                                            NULL;
-                                }
+                                kfree(REISERFS_SB(s)->s_qf_names[qtype]);
+                                REISERFS_SB(s)->s_qf_names[qtype] = NULL;
                         }
                 }
                 if (c == 'f') {
@@ -1158,11 +1154,10 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
         if (!reiserfs_parse_options
             (s, arg, &mount_options, &blocks, NULL, &commit_max_age)) {
 #ifdef CONFIG_QUOTA
-                for (i = 0; i < MAXQUOTAS; i++)
-                        if (REISERFS_SB(s)->s_qf_names[i]) {
-                                kfree(REISERFS_SB(s)->s_qf_names[i]);
-                                REISERFS_SB(s)->s_qf_names[i] = NULL;
-                        }
+                for (i = 0; i < MAXQUOTAS; i++) {
+                        kfree(REISERFS_SB(s)->s_qf_names[i]);
+                        REISERFS_SB(s)->s_qf_names[i] = NULL;
+                }
 #endif
                 return -EINVAL;
         }
@@ -1940,13 +1935,11 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
                 brelse(SB_BUFFER_WITH_SB(s));
 #ifdef CONFIG_QUOTA
         for (j = 0; j < MAXQUOTAS; j++) {
-                if (sbi->s_qf_names[j])
-                        kfree(sbi->s_qf_names[j]);
+                kfree(sbi->s_qf_names[j]);
+                sbi->s_qf_names[j] = NULL;
         }
 #endif
-        if (sbi != NULL) {
-                kfree(sbi);
-        }
+        kfree(sbi);
 
         s->s_fs_info = NULL;
         return errval;
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index 87ac9dc8b381..72e120798677 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -453,7 +453,7 @@ static struct page *reiserfs_get_page(struct inode *dir, unsigned long n)
         struct page *page;
         /* We can deadlock if we try to free dentries,
            and an unlink/rmdir has just occured - GFP_NOFS avoids this */
-        mapping->flags = (mapping->flags & ~__GFP_BITS_MASK) | GFP_NOFS;
+        mapping_set_gfp_mask(mapping, GFP_NOFS);
         page = read_cache_page(mapping, n,
                                (filler_t *) mapping->a_ops->readpage, NULL);
         if (!IS_ERR(page)) {
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 6703efa3c430..a47ac9aac8b2 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -296,8 +296,7 @@ reiserfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
                 }
         }
 
-        if (value)
-                kfree(value);
+        kfree(value);
 
         if (!error) {
                 /* Release the old one */
diff --git a/fs/super.c b/fs/super.c
index 6e57ee252e14..f60155ec7780 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -513,7 +513,7 @@ static void mark_files_ro(struct super_block *sb)
         struct file *f;
 
         file_list_lock();
-        list_for_each_entry(f, &sb->s_files, f_list) {
+        list_for_each_entry(f, &sb->s_files, f_u.fu_list) {
                 if (S_ISREG(f->f_dentry->d_inode->i_mode) && file_count(f))
                         f->f_mode &= ~FMODE_WRITE;
         }
diff --git a/fs/vfat/namei.c b/fs/vfat/namei.c
index 1c6f6b57ef1c..ef46939c0c1a 100644
--- a/fs/vfat/namei.c
+++ b/fs/vfat/namei.c
@@ -621,8 +621,7 @@ static int vfat_build_slots(struct inode *dir, const unsigned char *name,
         }
 
         /* build the entry of long file name */
-        for (cksum = i = 0; i < 11; i++)
-                cksum = (((cksum&1)<<7)|((cksum&0xfe)>>1)) + msdos_name[i];
+        cksum = fat_checksum(msdos_name);
 
         *nr_slots = usize / 13;
         for (ps = slots, i = *nr_slots; i > 0; i--, ps++) {
@@ -888,10 +887,10 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
 {
         struct buffer_head *dotdot_bh;
         struct msdos_dir_entry *dotdot_de;
-        loff_t dotdot_i_pos;
         struct inode *old_inode, *new_inode;
         struct fat_slot_info old_sinfo, sinfo;
         struct timespec ts;
+        loff_t dotdot_i_pos, new_i_pos;
         int err, is_dir, update_dotdot, corrupt = 0;
 
         old_sinfo.bh = sinfo.bh = dotdot_bh = NULL;
@@ -914,31 +913,24 @@ static int vfat_rename(struct inode *old_dir, struct dentry *old_dentry,
 
         ts = CURRENT_TIME_SEC;
         if (new_inode) {
-                err = vfat_find(new_dir, &new_dentry->d_name, &sinfo);
-                if (err)
-                        goto out;
-                if (MSDOS_I(new_inode)->i_pos != sinfo.i_pos) {
-                        /* WTF??? Cry and fail. */
-                        printk(KERN_WARNING "vfat_rename: fs corrupted\n");
-                        goto out;
-                }
-
                 if (is_dir) {
                         err = fat_dir_empty(new_inode);
                         if (err)
                                 goto out;
                 }
+                new_i_pos = MSDOS_I(new_inode)->i_pos;
                 fat_detach(new_inode);
         } else {
                 err = vfat_add_entry(new_dir, &new_dentry->d_name, is_dir, 0,
                                      &ts, &sinfo);
                 if (err)
                         goto out;
+                new_i_pos = sinfo.i_pos;
         }
         new_dir->i_version++;
 
         fat_detach(old_inode);
-        fat_attach(old_inode, sinfo.i_pos);
+        fat_attach(old_inode, new_i_pos);
         if (IS_DIRSYNC(new_dir)) {
                 err = fat_sync_inode(old_inode);
                 if (err)
@@ -1002,7 +994,7 @@ error_inode:
         fat_detach(old_inode);
         fat_attach(old_inode, old_sinfo.i_pos);
         if (new_inode) {
-                fat_attach(new_inode, sinfo.i_pos);
+                fat_attach(new_inode, new_i_pos);
                 if (corrupt)
                         corrupt |= fat_sync_inode(new_inode);
         } else {
diff --git a/fs/xattr.c b/fs/xattr.c
index 3f9c64bea151..f6e00c0e114f 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -143,7 +143,7 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size)
         if (size) {
                 if (size > XATTR_SIZE_MAX)
                         size = XATTR_SIZE_MAX;
-                kvalue = kmalloc(size, GFP_KERNEL);
+                kvalue = kzalloc(size, GFP_KERNEL);
                 if (!kvalue)
                         return -ENOMEM;
         }
@@ -154,11 +154,15 @@ getxattr(struct dentry *d, char __user *name, void __user *value, size_t size)
         error = -EOPNOTSUPP;
         if (d->d_inode->i_op && d->d_inode->i_op->getxattr)
                 error = d->d_inode->i_op->getxattr(d, kname, kvalue, size);
-        else if (!strncmp(kname, XATTR_SECURITY_PREFIX,
-                          sizeof XATTR_SECURITY_PREFIX - 1)) {
+
+        if (!strncmp(kname, XATTR_SECURITY_PREFIX,
+                     sizeof XATTR_SECURITY_PREFIX - 1)) {
                 const char *suffix = kname + sizeof XATTR_SECURITY_PREFIX - 1;
-                error = security_inode_getsecurity(d->d_inode, suffix, kvalue,
-                                                   size);
+                int rv = security_inode_getsecurity(d->d_inode, suffix, kvalue,
+                                                    size, error);
+                /* Security module active: overwrite error value */
+                if (rv != -EOPNOTSUPP)
+                        error = rv;
         }
         if (error > 0) {
                 if (size && copy_to_user(value, kvalue, error))
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index d2653b589b1c..3c92162dc728 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -45,11 +45,11 @@
 
 
 void *
-kmem_alloc(size_t size, gfp_t flags)
+kmem_alloc(size_t size, unsigned int __nocast flags)
 {
-        int             retries = 0;
-        unsigned int    lflags = kmem_flags_convert(flags);
-        void            *ptr;
+        int     retries = 0;
+        gfp_t   lflags = kmem_flags_convert(flags);
+        void    *ptr;
 
         do {
                 if (size < MAX_SLAB_SIZE || retries > MAX_VMALLOCS)
@@ -67,7 +67,7 @@ kmem_alloc(size_t size, gfp_t flags)
 }
 
 void *
-kmem_zalloc(size_t size, gfp_t flags)
+kmem_zalloc(size_t size, unsigned int __nocast flags)
 {
         void    *ptr;
 
@@ -90,7 +90,7 @@ kmem_free(void *ptr, size_t size)
 
 void *
 kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
-             gfp_t flags)
+             unsigned int __nocast flags)
 {
         void    *new;
 
@@ -105,11 +105,11 @@ kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
 }
 
 void *
-kmem_zone_alloc(kmem_zone_t *zone, gfp_t flags)
+kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
 {
-        int             retries = 0;
-        unsigned int    lflags = kmem_flags_convert(flags);
-        void            *ptr;
+        int     retries = 0;
+        gfp_t   lflags = kmem_flags_convert(flags);
+        void    *ptr;
 
         do {
                 ptr = kmem_cache_alloc(zone, lflags);
@@ -124,7 +124,7 @@ kmem_zone_alloc(kmem_zone_t *zone, gfp_t flags)
 }
 
 void *
-kmem_zone_zalloc(kmem_zone_t *zone, gfp_t flags)
+kmem_zone_zalloc(kmem_zone_t *zone, unsigned int __nocast flags)
 {
         void    *ptr;
 
diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h
index ee7010f085bc..f4bb78c268c0 100644
--- a/fs/xfs/linux-2.6/kmem.h
+++ b/fs/xfs/linux-2.6/kmem.h
@@ -81,9 +81,9 @@ typedef unsigned long xfs_pflags_t;
         *(NSTATEP) = *(OSTATEP);        \
 } while (0)
 
-static __inline unsigned int kmem_flags_convert(gfp_t flags)
+static __inline gfp_t kmem_flags_convert(unsigned int __nocast flags)
 {
-        unsigned int    lflags = __GFP_NOWARN;  /* we'll report problems, if need be */
+        gfp_t lflags = __GFP_NOWARN;    /* we'll report problems, if need be */
 
 #ifdef DEBUG
         if (unlikely(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL))) {
@@ -125,16 +125,16 @@ kmem_zone_destroy(kmem_zone_t *zone)
                 BUG();
 }
 
-extern void         *kmem_zone_zalloc(kmem_zone_t *, gfp_t);
-extern void         *kmem_zone_alloc(kmem_zone_t *, gfp_t);
+extern void         *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);
+extern void         *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
 
-extern void         *kmem_alloc(size_t, gfp_t);
-extern void         *kmem_realloc(void *, size_t, size_t, gfp_t);
-extern void         *kmem_zalloc(size_t, gfp_t);
+extern void         *kmem_alloc(size_t, unsigned int __nocast);
+extern void         *kmem_realloc(void *, size_t, size_t, unsigned int __nocast);
+extern void         *kmem_zalloc(size_t, unsigned int __nocast);
 extern void         kmem_free(void *, size_t);
 
 typedef struct shrinker *kmem_shaker_t;
-typedef int (*kmem_shake_func_t)(int, unsigned int);
+typedef int (*kmem_shake_func_t)(int, gfp_t);
 
 static __inline kmem_shaker_t
 kmem_shake_register(kmem_shake_func_t sfunc)
@@ -149,7 +149,7 @@ kmem_shake_deregister(kmem_shaker_t shrinker)
 }
 
 static __inline int
-kmem_shake_allow(unsigned int gfp_mask)
+kmem_shake_allow(gfp_t gfp_mask)
 {
         return (gfp_mask & __GFP_WAIT);
 }
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index c6c077978fe3..7aa398724706 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -1296,7 +1296,7 @@ linvfs_invalidate_page(
 STATIC int
 linvfs_release_page(
         struct page             *page,
-        int                     gfp_mask)
+        gfp_t                   gfp_mask)
 {
         struct inode            *inode = page->mapping->host;
         int                     dirty, delalloc, unmapped, unwritten;
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index e82cf72ac599..4cd46abe8434 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -64,7 +64,7 @@
 
 STATIC kmem_cache_t *pagebuf_zone;
 STATIC kmem_shaker_t pagebuf_shake;
-STATIC int xfsbufd_wakeup(int, unsigned int);
+STATIC int xfsbufd_wakeup(int, gfp_t);
 STATIC void pagebuf_delwri_queue(xfs_buf_t *, int);
 
 STATIC struct workqueue_struct *xfslogd_workqueue;
@@ -181,8 +181,9 @@ set_page_region(
         size_t          offset,
         size_t          length)
 {
-        page->private |= page_region_mask(offset, length);
-        if (page->private == ~0UL)
+        set_page_private(page,
+                page_private(page) | page_region_mask(offset, length));
+        if (page_private(page) == ~0UL)
                 SetPageUptodate(page);
 }
 
@@ -194,7 +195,7 @@ test_page_region(
 {
         unsigned long   mask = page_region_mask(offset, length);
 
-        return (mask && (page->private & mask) == mask);
+        return (mask && (page_private(page) & mask) == mask);
 }
 
 /*
@@ -383,7 +384,7 @@ _pagebuf_lookup_pages(
         size_t                  blocksize = bp->pb_target->pbr_bsize;
         size_t                  size = bp->pb_count_desired;
         size_t                  nbytes, offset;
-        int                     gfp_mask = pb_to_gfp(flags);
+        gfp_t                   gfp_mask = pb_to_gfp(flags);
         unsigned short          page_count, i;
         pgoff_t                 first;
         loff_t                  end;
@@ -1749,8 +1750,8 @@ STATIC int xfsbufd_force_sleep;
 
 STATIC int
 xfsbufd_wakeup(
-        int                     priority,
-        unsigned int            mask)
+        int             priority,
+        gfp_t           mask)
 {
         if (xfsbufd_force_sleep)
                 return 0;