Merge branch 'upstream'

17 files changed, 114 insertions, 174 deletions

diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index a4799e971d1c..bbc3cc63854f 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -175,16 +175,16 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl)
 }
 
 /**
- * v9fs_read - read from a file (internal)
+ * v9fs_file_read - read from a file
  * @filep: file pointer to read
  * @data: data buffer to read data into
  * @count: size of buffer
  * @offset: offset at which to read data
  *
  */
-
 static ssize_t
-v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
+v9fs_file_read(struct file *filp, char __user * data, size_t count,
+               loff_t * offset)
 {
         struct inode *inode = filp->f_dentry->d_inode;
         struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
@@ -194,6 +194,7 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
         int rsize = 0;
         int result = 0;
         int total = 0;
+        int n;
 
         dprintk(DEBUG_VFS, "\n");
 
@@ -216,10 +217,15 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
                 } else
                         *offset += result;
 
-                /* XXX - extra copy */
-                memcpy(buffer, fcall->params.rread.data, result);
+                n = copy_to_user(data, fcall->params.rread.data, result);
+                if (n) {
+                        dprintk(DEBUG_ERROR, "Problem copying to user %d\n", n);
+                        kfree(fcall);
+                        return -EFAULT;
+                }
+
                 count -= result;
-                buffer += result;
+                data += result;
                 total += result;
 
                 kfree(fcall);
@@ -232,42 +238,7 @@ v9fs_read(struct file *filp, char *buffer, size_t count, loff_t * offset)
 }
 
 /**
- * v9fs_file_read - read from a file
- * @filep: file pointer to read
- * @data: data buffer to read data into
- * @count: size of buffer
- * @offset: offset at which to read data
- *
- */
-
-static ssize_t
-v9fs_file_read(struct file *filp, char __user * data, size_t count,
-               loff_t * offset)
-{
-        int retval = -1;
-        int ret = 0;
-        char *buffer;
-
-        buffer = kmalloc(count, GFP_KERNEL);
-        if (!buffer)
-                return -ENOMEM;
-
-        retval = v9fs_read(filp, buffer, count, offset);
-        if (retval > 0) {
-                if ((ret = copy_to_user(data, buffer, retval)) != 0) {
-                        dprintk(DEBUG_ERROR, "Problem copying to user %d\n",
-                                ret);
-                        retval = ret;
-                }
-        }
-
-        kfree(buffer);
-
-        return retval;
-}
-
-/**
- * v9fs_write - write to a file
+ * v9fs_file_write - write to a file
  * @filep: file pointer to write
  * @data: data buffer to write data from
  * @count: size of buffer
@@ -276,7 +247,8 @@ v9fs_file_read(struct file *filp, char __user * data, size_t count,
  */
 
 static ssize_t
-v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
+v9fs_file_write(struct file *filp, const char __user * data,
+                size_t count, loff_t * offset)
 {
         struct inode *inode = filp->f_dentry->d_inode;
         struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
@@ -286,30 +258,42 @@ v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
         int result = -EIO;
         int rsize = 0;
         int total = 0;
+        char *buf;
 
-        dprintk(DEBUG_VFS, "data %p count %d offset %x\n", buffer, (int)count,
+        dprintk(DEBUG_VFS, "data %p count %d offset %x\n", data, (int)count,
                 (int)*offset);
         rsize = v9ses->maxdata - V9FS_IOHDRSZ;
         if (v9fid->iounit != 0 && rsize > v9fid->iounit)
                 rsize = v9fid->iounit;
 
-        dump_data(buffer, count);
+        buf = kmalloc(v9ses->maxdata - V9FS_IOHDRSZ, GFP_KERNEL);
+        if (!buf)
+                return -ENOMEM;
 
         do {
                 if (count < rsize)
                         rsize = count;
 
-                result =
-                    v9fs_t_write(v9ses, fid, *offset, rsize, buffer, &fcall);
+                result = copy_from_user(buf, data, rsize);
+                if (result) {
+                        dprintk(DEBUG_ERROR, "Problem copying from user\n");
+                        kfree(buf);
+                        return -EFAULT;
+                }
+
+                dump_data(buf, rsize);
+                result = v9fs_t_write(v9ses, fid, *offset, rsize, buf, &fcall);
                 if (result < 0) {
                         eprintk(KERN_ERR, "error while writing: %s(%d)\n",
                                 FCALL_ERROR(fcall), result);
                         kfree(fcall);
+                        kfree(buf);
                         return result;
                 } else
                         *offset += result;
 
                 kfree(fcall);
+                fcall = NULL;
 
                 if (result != rsize) {
                         eprintk(KERN_ERR,
@@ -319,46 +303,14 @@ v9fs_write(struct file *filp, char *buffer, size_t count, loff_t * offset)
                 }
 
                 count -= result;
-                buffer += result;
+                data += result;
                 total += result;
         } while (count);
 
+        kfree(buf);
         return total;
 }
 
-/**
- * v9fs_file_write - write to a file
- * @filep: file pointer to write
- * @data: data buffer to write data from
- * @count: size of buffer
- * @offset: offset at which to write data
- *
- */
-
-static ssize_t
-v9fs_file_write(struct file *filp, const char __user * data,
-                size_t count, loff_t * offset)
-{
-        int ret = -1;
-        char *buffer;
-
-        buffer = kmalloc(count, GFP_KERNEL);
-        if (buffer == NULL)
-                return -ENOMEM;
-
-        ret = copy_from_user(buffer, data, count);
-        if (ret) {
-                dprintk(DEBUG_ERROR, "Problem copying from user\n");
-                ret = -EFAULT;
-        } else {
-                ret = v9fs_write(filp, buffer, count, offset);
-        }
-
-        kfree(buffer);
-
-        return ret;
-}
-
 struct file_operations v9fs_file_operations = {
         .llseek = generic_file_llseek,
         .read = v9fs_file_read,
diff --git a/fs/aio.c b/fs/aio.c
index d6b1551342b7..9fe7216457d8 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -398,7 +398,7 @@ static struct kiocb fastcall *__aio_get_req(struct kioctx *ctx)
         if (unlikely(!req))
                 return NULL;
 
-        req->ki_flags = 1 << KIF_LOCKED;
+        req->ki_flags = 0;
         req->ki_users = 2;
         req->ki_key = 0;
         req->ki_ctx = ctx;
@@ -547,25 +547,6 @@ struct kioctx *lookup_ioctx(unsigned long ctx_id)
         return ioctx;
 }
 
-static int lock_kiocb_action(void *param)
-{
-        schedule();
-        return 0;
-}
-
-static inline void lock_kiocb(struct kiocb *iocb)
-{
-        wait_on_bit_lock(&iocb->ki_flags, KIF_LOCKED, lock_kiocb_action,
-                         TASK_UNINTERRUPTIBLE);
-}
-
-static inline void unlock_kiocb(struct kiocb *iocb)
-{
-        kiocbClearLocked(iocb);
-        smp_mb__after_clear_bit();
-        wake_up_bit(&iocb->ki_flags, KIF_LOCKED);
-}
-
 /*
  * use_mm
  *      Makes the calling kernel thread take on the specified
@@ -796,9 +777,7 @@ static int __aio_run_iocbs(struct kioctx *ctx)
                  * Hold an extra reference while retrying i/o.
                  */
                 iocb->ki_users++;       /* grab extra reference */
-                lock_kiocb(iocb);
                 aio_run_iocb(iocb);
-                unlock_kiocb(iocb);
                 if (__aio_put_req(ctx, iocb))  /* drop extra ref */
                         put_ioctx(ctx);
         }
@@ -1542,7 +1521,6 @@ int fastcall io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
 
         spin_lock_irq(&ctx->ctx_lock);
         aio_run_iocb(req);
-        unlock_kiocb(req);
         if (!list_empty(&ctx->run_list)) {
                 /* drain the run list */
                 while (__aio_run_iocbs(ctx))
@@ -1674,7 +1652,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
         if (NULL != cancel) {
                 struct io_event tmp;
                 pr_debug("calling cancel\n");
-                lock_kiocb(kiocb);
                 memset(&tmp, 0, sizeof(tmp));
                 tmp.obj = (u64)(unsigned long)kiocb->ki_obj.user;
                 tmp.data = kiocb->ki_user_data;
@@ -1686,7 +1663,6 @@ asmlinkage long sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb,
                         if (copy_to_user(result, &tmp, sizeof(tmp)))
                                 ret = -EFAULT;
                 }
-                unlock_kiocb(kiocb);
         } else
                 ret = -EINVAL;
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 7976a238f0a3..d4b15576e584 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -905,7 +905,7 @@ static int load_elf_binary(struct linux_binprm * bprm, struct pt_regs * regs)
                 send_sig(SIGKILL, current, 0);
                 goto out_free_dentry;
         }
-        if (padzero(elf_bss)) {
+        if (likely(elf_bss != elf_brk) && unlikely(padzero(elf_bss))) {
                 send_sig(SIGSEGV, current, 0);
                 retval = -EFAULT; /* Nobody gets to see this, but.. */
                 goto out_free_dentry;
diff --git a/fs/bio.c b/fs/bio.c
index 83a349574567..7d81a93afd48 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -75,7 +75,7 @@ struct bio_set {
  */
 static struct bio_set *fs_bio_set;
 
-static inline struct bio_vec *bvec_alloc_bs(unsigned int __nocast gfp_mask, int nr, unsigned long *idx, struct bio_set *bs)
+static inline struct bio_vec *bvec_alloc_bs(gfp_t gfp_mask, int nr, unsigned long *idx, struct bio_set *bs)
 {
         struct bio_vec *bvl;
         struct biovec_slab *bp;
@@ -155,7 +155,7 @@ inline void bio_init(struct bio *bio)
  *   allocate bio and iovecs from the memory pools specified by the
  *   bio_set structure.
  **/
-struct bio *bio_alloc_bioset(unsigned int __nocast gfp_mask, int nr_iovecs, struct bio_set *bs)
+struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 {
         struct bio *bio = mempool_alloc(bs->bio_pool, gfp_mask);
 
@@ -181,7 +181,7 @@ out:
         return bio;
 }
 
-struct bio *bio_alloc(unsigned int __nocast gfp_mask, int nr_iovecs)
+struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs)
 {
         struct bio *bio = bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);
 
@@ -277,7 +277,7 @@ inline void __bio_clone(struct bio *bio, struct bio *bio_src)
  *
  *      Like __bio_clone, only also allocates the returned bio
  */
-struct bio *bio_clone(struct bio *bio, unsigned int __nocast gfp_mask)
+struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
 {
         struct bio *b = bio_alloc_bioset(gfp_mask, bio->bi_max_vecs, fs_bio_set);
 
@@ -1078,7 +1078,7 @@ struct bio_pair *bio_split(struct bio *bi, mempool_t *pool, int first_sectors)
         return bp;
 }
 
-static void *bio_pair_alloc(unsigned int __nocast gfp_flags, void *data)
+static void *bio_pair_alloc(gfp_t gfp_flags, void *data)
 {
         return kmalloc(sizeof(struct bio_pair), gfp_flags);
 }
diff --git a/fs/buffer.c b/fs/buffer.c
index 6cbfceabd95d..1216c0d3c8ce 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -3045,7 +3045,7 @@ static void recalc_bh_state(void)
         buffer_heads_over_limit = (tot > max_buffer_heads);
 }
         
-struct buffer_head *alloc_buffer_head(unsigned int __nocast gfp_flags)
+struct buffer_head *alloc_buffer_head(gfp_t gfp_flags)
 {
         struct buffer_head *ret = kmem_cache_alloc(bh_cachep, gfp_flags);
         if (ret) {
diff --git a/fs/mpage.c b/fs/mpage.c
index bb9aebe93862..c5adcdddf3cc 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -102,7 +102,7 @@ static struct bio *mpage_bio_submit(int rw, struct bio *bio)
 static struct bio *
 mpage_alloc(struct block_device *bdev,
                 sector_t first_sector, int nr_vecs,
-                unsigned int __nocast gfp_flags)
+                gfp_t gfp_flags)
 {
         struct bio *bio;
 
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index d7f7eb669d03..4a36839f0bbd 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -85,6 +85,10 @@ int nfs_inode_set_delegation(struct inode *inode, struct rpc_cred *cred, struct
         struct nfs_delegation *delegation;
         int status = 0;
 
+        /* Ensure we first revalidate the attributes and page cache! */
+        if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR)))
+                __nfs_revalidate_inode(NFS_SERVER(inode), inode);
+
         delegation = nfs_alloc_delegation();
         if (delegation == NULL)
                 return -ENOMEM;
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index f6b9eda925c5..6bdcfa95de94 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -137,7 +137,8 @@ static int nfs_revalidate_file(struct inode *inode, struct file *filp)
         struct nfs_inode *nfsi = NFS_I(inode);
         int retval = 0;
 
-        if ((nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE) || nfs_attribute_timeout(inode))
+        if ((nfsi->cache_validity & (NFS_INO_REVAL_PAGECACHE|NFS_INO_INVALID_ATTR))
+                        || nfs_attribute_timeout(inode))
                 retval = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
         nfs_revalidate_mapping(inode, filp->f_mapping);
         return 0;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 6922469d6fc5..d4eadeea128e 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -877,12 +877,10 @@ static int nfs_wait_on_inode(struct inode *inode)
         sigset_t oldmask;
         int error;
 
-        atomic_inc(&inode->i_count);
         rpc_clnt_sigmask(clnt, &oldmask);
         error = wait_on_bit_lock(&nfsi->flags, NFS_INO_REVALIDATING,
                                         nfs_wait_schedule, TASK_INTERRUPTIBLE);
         rpc_clnt_sigunmask(clnt, &oldmask);
-        iput(inode);
 
         return error;
 }
@@ -1226,10 +1224,6 @@ int nfs_refresh_inode(struct inode *inode, struct nfs_fattr *fattr)
         loff_t cur_size, new_isize;
         int data_unstable;
 
-        /* Do we hold a delegation? */
-        if (nfs_have_delegation(inode, FMODE_READ))
-                return 0;
-
         spin_lock(&inode->i_lock);
 
         /* Are we in the process of updating data on the server? */
@@ -1350,7 +1344,8 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr, unsign
         nfsi->read_cache_jiffies = fattr->timestamp;
 
         /* Are we racing with known updates of the metadata on the server? */
-        data_unstable = ! nfs_verify_change_attribute(inode, verifier);
+        data_unstable = ! (nfs_verify_change_attribute(inode, verifier) ||
+                (nfsi->cache_validity & NFS_INO_REVAL_PAGECACHE));
 
         /* Check if our cached file size is stale */
         new_isize = nfs_size_to_loff_t(fattr->size);
diff --git a/fs/nfs_common/nfsacl.c b/fs/nfs_common/nfsacl.c
index 251e5a1bb1c4..0c2be8c0307d 100644
--- a/fs/nfs_common/nfsacl.c
+++ b/fs/nfs_common/nfsacl.c
@@ -48,43 +48,26 @@ xdr_nfsace_encode(struct xdr_array2_desc *desc, void *elem)
                 (struct nfsacl_encode_desc *) desc;
         u32 *p = (u32 *) elem;
 
-        if (nfsacl_desc->count < nfsacl_desc->acl->a_count) {
-                struct posix_acl_entry *entry =
-                        &nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
+        struct posix_acl_entry *entry =
+                &nfsacl_desc->acl->a_entries[nfsacl_desc->count++];
 
-                *p++ = htonl(entry->e_tag | nfsacl_desc->typeflag);
-                switch(entry->e_tag) {
-                        case ACL_USER_OBJ:
-                                *p++ = htonl(nfsacl_desc->uid);
-                                break;
-                        case ACL_GROUP_OBJ:
-                                *p++ = htonl(nfsacl_desc->gid);
-                                break;
-                        case ACL_USER:
-                        case ACL_GROUP:
-                                *p++ = htonl(entry->e_id);
-                                break;
-                        default:  /* Solaris depends on that! */
-                                *p++ = 0;
-                                break;
-                }
-                *p++ = htonl(entry->e_perm & S_IRWXO);
-        } else {
-                const struct posix_acl_entry *pa, *pe;
-                int group_obj_perm = ACL_READ|ACL_WRITE|ACL_EXECUTE;
-
-                FOREACH_ACL_ENTRY(pa, nfsacl_desc->acl, pe) {
-                        if (pa->e_tag == ACL_GROUP_OBJ) {
-                                group_obj_perm = pa->e_perm & S_IRWXO;
-                                break;
-                        }
-                }
-                /* fake up ACL_MASK entry */
-                *p++ = htonl(ACL_MASK | nfsacl_desc->typeflag);
-                *p++ = htonl(0);
-                *p++ = htonl(group_obj_perm);
+        *p++ = htonl(entry->e_tag | nfsacl_desc->typeflag);
+        switch(entry->e_tag) {
+                case ACL_USER_OBJ:
+                        *p++ = htonl(nfsacl_desc->uid);
+                        break;
+                case ACL_GROUP_OBJ:
+                        *p++ = htonl(nfsacl_desc->gid);
+                        break;
+                case ACL_USER:
+                case ACL_GROUP:
+                        *p++ = htonl(entry->e_id);
+                        break;
+                default:  /* Solaris depends on that! */
+                        *p++ = 0;
+                        break;
         }
-
+        *p++ = htonl(entry->e_perm & S_IRWXO);
         return 0;
 }
 
@@ -105,11 +88,28 @@ nfsacl_encode(struct xdr_buf *buf, unsigned int base, struct inode *inode,
                 .gid = inode->i_gid,
         };
         int err;
+        struct posix_acl *acl2 = NULL;
 
         if (entries > NFS_ACL_MAX_ENTRIES ||
             xdr_encode_word(buf, base, entries))
                 return -EINVAL;
+        if (encode_entries && acl && acl->a_count == 3) {
+                /* Fake up an ACL_MASK entry. */
+                acl2 = posix_acl_alloc(4, GFP_KERNEL);
+                if (!acl2)
+                        return -ENOMEM;
+                /* Insert entries in canonical order: other orders seem
+                 to confuse Solaris VxFS. */
+                acl2->a_entries[0] = acl->a_entries[0];  /* ACL_USER_OBJ */
+                acl2->a_entries[1] = acl->a_entries[1];  /* ACL_GROUP_OBJ */
+                acl2->a_entries[2] = acl->a_entries[1];  /* ACL_MASK */
+                acl2->a_entries[2].e_tag = ACL_MASK;
+                acl2->a_entries[3] = acl->a_entries[2];  /* ACL_OTHER */
+                nfsacl_desc.acl = acl2;
+        }
         err = xdr_encode_array2(buf, base + 4, &nfsacl_desc.desc);
+        if (acl2)
+                posix_acl_release(acl2);
         if (!err)
                 err = 8 + nfsacl_desc.desc.elem_size *
                           nfsacl_desc.desc.array_len;
diff --git a/fs/ntfs/malloc.h b/fs/ntfs/malloc.h
index 006946efca8c..590887b943f5 100644
--- a/fs/ntfs/malloc.h
+++ b/fs/ntfs/malloc.h
@@ -40,7 +40,7 @@
  * Depending on @gfp_mask the allocation may be guaranteed to succeed.
  */
 static inline void *__ntfs_malloc(unsigned long size,
-                unsigned int __nocast gfp_mask)
+                gfp_t gfp_mask)
 {
         if (likely(size <= PAGE_SIZE)) {
                 BUG_ON(!size);
diff --git a/fs/posix_acl.c b/fs/posix_acl.c
index 296480e96dd5..6c8dcf7613fd 100644
--- a/fs/posix_acl.c
+++ b/fs/posix_acl.c
@@ -35,7 +35,7 @@ EXPORT_SYMBOL(posix_acl_permission);
  * Allocate a new ACL with the specified number of entries.
  */
 struct posix_acl *
-posix_acl_alloc(int count, unsigned int __nocast flags)
+posix_acl_alloc(int count, gfp_t flags)
 {
         const size_t size = sizeof(struct posix_acl) +
                             count * sizeof(struct posix_acl_entry);
@@ -51,7 +51,7 @@ posix_acl_alloc(int count, unsigned int __nocast flags)
  * Clone an ACL.
  */
 struct posix_acl *
-posix_acl_clone(const struct posix_acl *acl, unsigned int __nocast flags)
+posix_acl_clone(const struct posix_acl *acl, gfp_t flags)
 {
         struct posix_acl *clone = NULL;
 
@@ -185,7 +185,7 @@ posix_acl_equiv_mode(const struct posix_acl *acl, mode_t *mode_p)
  * Create an ACL representing the file mode permission bits of an inode.
  */
 struct posix_acl *
-posix_acl_from_mode(mode_t mode, unsigned int __nocast flags)
+posix_acl_from_mode(mode_t mode, gfp_t flags)
 {
         struct posix_acl *acl = posix_acl_alloc(3, flags);
         if (!acl)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 3b33f94020db..a170450aadb1 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -103,7 +103,9 @@ enum pid_directory_inos {
         PROC_TGID_NUMA_MAPS,
         PROC_TGID_MOUNTS,
         PROC_TGID_WCHAN,
+#ifdef CONFIG_MMU
         PROC_TGID_SMAPS,
+#endif
 #ifdef CONFIG_SCHEDSTATS
         PROC_TGID_SCHEDSTAT,
 #endif
@@ -141,7 +143,9 @@ enum pid_directory_inos {
         PROC_TID_NUMA_MAPS,
         PROC_TID_MOUNTS,
         PROC_TID_WCHAN,
+#ifdef CONFIG_MMU
         PROC_TID_SMAPS,
+#endif
 #ifdef CONFIG_SCHEDSTATS
         PROC_TID_SCHEDSTAT,
 #endif
@@ -195,7 +199,9 @@ static struct pid_entry tgid_base_stuff[] = {
         E(PROC_TGID_ROOT,      "root",    S_IFLNK|S_IRWXUGO),
         E(PROC_TGID_EXE,       "exe",     S_IFLNK|S_IRWXUGO),
         E(PROC_TGID_MOUNTS,    "mounts",  S_IFREG|S_IRUGO),
+#ifdef CONFIG_MMU
         E(PROC_TGID_SMAPS,     "smaps",   S_IFREG|S_IRUGO),
+#endif
 #ifdef CONFIG_SECURITY
         E(PROC_TGID_ATTR,      "attr",    S_IFDIR|S_IRUGO|S_IXUGO),
 #endif
@@ -235,7 +241,9 @@ static struct pid_entry tid_base_stuff[] = {
         E(PROC_TID_ROOT,       "root",    S_IFLNK|S_IRWXUGO),
         E(PROC_TID_EXE,        "exe",     S_IFLNK|S_IRWXUGO),
         E(PROC_TID_MOUNTS,     "mounts",  S_IFREG|S_IRUGO),
+#ifdef CONFIG_MMU
         E(PROC_TID_SMAPS,      "smaps",   S_IFREG|S_IRUGO),
+#endif
 #ifdef CONFIG_SECURITY
         E(PROC_TID_ATTR,       "attr",    S_IFDIR|S_IRUGO|S_IXUGO),
 #endif
@@ -630,6 +638,7 @@ static struct file_operations proc_numa_maps_operations = {
 };
 #endif
 
+#ifdef CONFIG_MMU
 extern struct seq_operations proc_pid_smaps_op;
 static int smaps_open(struct inode *inode, struct file *file)
 {
@@ -648,6 +657,7 @@ static struct file_operations proc_smaps_operations = {
         .llseek         = seq_lseek,
         .release        = seq_release,
 };
+#endif
 
 extern struct seq_operations mounts_op;
 static int mounts_open(struct inode *inode, struct file *file)
@@ -1681,10 +1691,12 @@ static struct dentry *proc_pident_lookup(struct inode *dir,
                 case PROC_TGID_MOUNTS:
                         inode->i_fop = &proc_mounts_operations;
                         break;
+#ifdef CONFIG_MMU
                 case PROC_TID_SMAPS:
                 case PROC_TGID_SMAPS:
                         inode->i_fop = &proc_smaps_operations;
                         break;
+#endif
 #ifdef CONFIG_SECURITY
                 case PROC_TID_ATTR:
                         inode->i_nlink = 2;
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index f3bf016d5ee3..cff10ab1af63 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -91,6 +91,7 @@ static void *nommu_vma_list_start(struct seq_file *m, loff_t *_pos)
                         next = _rb;
                         break;
                 }
+                pos--;
         }
 
         return next;
diff --git a/fs/relayfs/buffers.c b/fs/relayfs/buffers.c
index 2aa8e2719999..84e21ffa5ca8 100644
--- a/fs/relayfs/buffers.c
+++ b/fs/relayfs/buffers.c
@@ -109,7 +109,7 @@ static void *relay_alloc_buf(struct rchan_buf *buf, unsigned long size)
                 if (unlikely(!buf->page_array[i]))
                         goto depopulate;
         }
-        mem = vmap(buf->page_array, n_pages, GFP_KERNEL, PAGE_KERNEL);
+        mem = vmap(buf->page_array, n_pages, VM_MAP, PAGE_KERNEL);
         if (!mem)
                 goto depopulate;
 
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c
index 4b184559f231..d2653b589b1c 100644
--- a/fs/xfs/linux-2.6/kmem.c
+++ b/fs/xfs/linux-2.6/kmem.c
@@ -45,7 +45,7 @@
 
 
 void *
-kmem_alloc(size_t size, unsigned int __nocast flags)
+kmem_alloc(size_t size, gfp_t flags)
 {
         int             retries = 0;
         unsigned int    lflags = kmem_flags_convert(flags);
@@ -67,7 +67,7 @@ kmem_alloc(size_t size, unsigned int __nocast flags)
 }
 
 void *
-kmem_zalloc(size_t size, unsigned int __nocast flags)
+kmem_zalloc(size_t size, gfp_t 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,
-             unsigned int __nocast flags)
+             gfp_t flags)
 {
         void    *new;
 
@@ -105,7 +105,7 @@ kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
 }
 
 void *
-kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
+kmem_zone_alloc(kmem_zone_t *zone, gfp_t flags)
 {
         int             retries = 0;
         unsigned int    lflags = kmem_flags_convert(flags);
@@ -124,7 +124,7 @@ kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
 }
 
 void *
-kmem_zone_zalloc(kmem_zone_t *zone, unsigned int __nocast flags)
+kmem_zone_zalloc(kmem_zone_t *zone, gfp_t flags)
 {
         void    *ptr;
 
diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h
index 109fcf27e256..ee7010f085bc 100644
--- a/fs/xfs/linux-2.6/kmem.h
+++ b/fs/xfs/linux-2.6/kmem.h
@@ -81,7 +81,7 @@ typedef unsigned long xfs_pflags_t;
         *(NSTATEP) = *(OSTATEP);        \
 } while (0)
 
-static __inline unsigned int kmem_flags_convert(unsigned int __nocast flags)
+static __inline unsigned int kmem_flags_convert(gfp_t flags)
 {
         unsigned int    lflags = __GFP_NOWARN;  /* we'll report problems, if need be */
 
@@ -125,13 +125,12 @@ kmem_zone_destroy(kmem_zone_t *zone)
                 BUG();
 }
 
-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_zone_zalloc(kmem_zone_t *, gfp_t);
+extern void         *kmem_zone_alloc(kmem_zone_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_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_free(void *, size_t);
 
 typedef struct shrinker *kmem_shaker_t;