Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (96 commits)
  no need for list_for_each_entry_safe()/resetting with superblock list
  Fix sget() race with failing mount
  vfs: don't hold s_umount over close_bdev_exclusive() call
  sysv: do not mark superblock dirty on remount
  sysv: do not mark superblock dirty on mount
  btrfs: remove junk sb_dirt change
  BFS: clean up the superblock usage
  AFFS: wait for sb synchronization when needed
  AFFS: clean up dirty flag usage
  cifs: truncate fallout
  mbcache: fix shrinker function return value
  mbcache: Remove unused features
  add f_flags to struct statfs(64)
  pass a struct path to vfs_statfs
  update VFS documentation for method changes.
  All filesystems that need invalidate_inode_buffers() are doing that explicitly
  convert remaining ->clear_inode() to ->evict_inode()
  Make ->drop_inode() just return whether inode needs to be dropped
  fs/inode.c:clear_inode() is gone
  fs/inode.c:evict() doesn't care about delete vs. non-delete paths now
  ...

Fix up trivial conflicts in fs/nilfs2/super.c

10 files changed, 62 insertions, 88 deletions

diff --git a/include/asm-generic/statfs.h b/include/asm-generic/statfs.h
index 3b4fb3e52f0d..0fd28e028de1 100644
--- a/include/asm-generic/statfs.h
+++ b/include/asm-generic/statfs.h
@@ -33,7 +33,8 @@ struct statfs {
         __kernel_fsid_t f_fsid;
         __statfs_word f_namelen;
         __statfs_word f_frsize;
-        __statfs_word f_spare[5];
+        __statfs_word f_flags;
+        __statfs_word f_spare[4];
 };
 
 /*
@@ -55,7 +56,8 @@ struct statfs64 {
         __kernel_fsid_t f_fsid;
         __statfs_word f_namelen;
         __statfs_word f_frsize;
-        __statfs_word f_spare[5];
+        __statfs_word f_flags;
+        __statfs_word f_spare[4];
 } ARCH_PACK_STATFS64;
 
 /* 
@@ -77,7 +79,8 @@ struct compat_statfs64 {
         __kernel_fsid_t f_fsid;
         __u32 f_namelen;
         __u32 f_frsize;
-        __u32 f_spare[5];
+        __u32 f_flags;
+        __u32 f_spare[4];
 } ARCH_PACK_COMPAT_STATFS64;
 
 #endif
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 2ce51fac7d3d..43e649a72529 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -203,12 +203,10 @@ int block_write_full_page_endio(struct page *page, get_block_t *get_block,
 int block_read_full_page(struct page*, get_block_t*);
 int block_is_partially_uptodate(struct page *page, read_descriptor_t *desc,
                                 unsigned long from);
-int block_write_begin_newtrunc(struct file *, struct address_space *,
-                                loff_t, unsigned, unsigned,
-                                struct page **, void **, get_block_t*);
-int block_write_begin(struct file *, struct address_space *,
-                                loff_t, unsigned, unsigned,
-                                struct page **, void **, get_block_t*);
+int block_write_begin(struct address_space *mapping, loff_t pos, unsigned len,
+                unsigned flags, struct page **pagep, get_block_t *get_block);
+int __block_write_begin(struct page *page, loff_t pos, unsigned len,
+                get_block_t *get_block);
 int block_write_end(struct file *, struct address_space *,
                                 loff_t, unsigned, unsigned,
                                 struct page *, void *);
@@ -217,9 +215,6 @@ int generic_write_end(struct file *, struct address_space *,
                                 struct page *, void *);
 void page_zero_new_buffers(struct page *page, unsigned from, unsigned to);
 int block_prepare_write(struct page*, unsigned, unsigned, get_block_t*);
-int cont_write_begin_newtrunc(struct file *, struct address_space *, loff_t,
-                        unsigned, unsigned, struct page **, void **,
-                        get_block_t *, loff_t *);
 int cont_write_begin(struct file *, struct address_space *, loff_t,
                         unsigned, unsigned, struct page **, void **,
                         get_block_t *, loff_t *);
@@ -230,12 +225,7 @@ int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
 void block_sync_page(struct page *);
 sector_t generic_block_bmap(struct address_space *, sector_t, get_block_t *);
 int block_truncate_page(struct address_space *, loff_t, get_block_t *);
-int file_fsync(struct file *, int);
-int nobh_write_begin_newtrunc(struct file *, struct address_space *,
-                                loff_t, unsigned, unsigned,
-                                struct page **, void **, get_block_t*);
-int nobh_write_begin(struct file *, struct address_space *,
-                                loff_t, unsigned, unsigned,
+int nobh_write_begin(struct address_space *, loff_t, unsigned, unsigned,
                                 struct page **, void **, get_block_t*);
 int nobh_write_end(struct file *, struct address_space *,
                                 loff_t, unsigned, unsigned,
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index eebb617c17d8..d23be0386e2d 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -315,6 +315,7 @@ extern char *dynamic_dname(struct dentry *, char *, int, const char *, ...);
 
 extern char *__d_path(const struct path *path, struct path *root, char *, int);
 extern char *d_path(const struct path *, char *, int);
+extern char *__dentry_path(struct dentry *, char *, int);
 extern char *dentry_path(struct dentry *, char *, int);
 
 /* Allocation counts.. */
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 3d3a9915dde2..6ce1bca01724 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -895,7 +895,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
 extern struct inode *ext3_iget(struct super_block *, unsigned long);
 extern int  ext3_write_inode (struct inode *, struct writeback_control *);
 extern int  ext3_setattr (struct dentry *, struct iattr *);
-extern void ext3_delete_inode (struct inode *);
+extern void ext3_evict_inode (struct inode *);
 extern int  ext3_sync_inode (handle_t *, struct inode *);
 extern void ext3_discard_reservation (struct inode *);
 extern void ext3_dirty_inode(struct inode *);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 488efec09d14..9e221016a6a9 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -210,6 +210,7 @@ struct inodes_stat_t {
 #define MS_KERNMOUNT    (1<<22) /* this is a kern_mount call */
 #define MS_I_VERSION    (1<<23) /* Update inode I_version field */
 #define MS_STRICTATIME  (1<<24) /* Always perform atime updates */
+#define MS_BORN         (1<<29)
 #define MS_ACTIVE       (1<<30)
 #define MS_NOUSER       (1<<31)
 
@@ -1564,8 +1565,8 @@ struct super_operations {
 
         void (*dirty_inode) (struct inode *);
         int (*write_inode) (struct inode *, struct writeback_control *wbc);
-        void (*drop_inode) (struct inode *);
-        void (*delete_inode) (struct inode *);
+        int (*drop_inode) (struct inode *);
+        void (*evict_inode) (struct inode *);
         void (*put_super) (struct super_block *);
         void (*write_super) (struct super_block *);
         int (*sync_fs)(struct super_block *sb, int wait);
@@ -1573,7 +1574,6 @@ struct super_operations {
         int (*unfreeze_fs) (struct super_block *);
         int (*statfs) (struct dentry *, struct kstatfs *);
         int (*remount_fs) (struct super_block *, int *, char *);
-        void (*clear_inode) (struct inode *);
         void (*umount_begin) (struct super_block *);
 
         int (*show_options)(struct seq_file *, struct vfsmount *);
@@ -1618,8 +1618,8 @@ struct super_operations {
  * I_FREEING            Set when inode is about to be freed but still has dirty
  *                      pages or buffers attached or the inode itself is still
  *                      dirty.
- * I_CLEAR              Set by clear_inode().  In this state the inode is clean
- *                      and can be destroyed.
+ * I_CLEAR              Added by end_writeback().  In this state the inode is clean
+ *                      and can be destroyed.  Inode keeps I_FREEING.
  *
  *                      Inodes that are I_WILL_FREE, I_FREEING or I_CLEAR are
  *                      prohibited for many purposes.  iget() must wait for
@@ -1816,7 +1816,8 @@ extern struct vfsmount *collect_mounts(struct path *);
 extern void drop_collected_mounts(struct vfsmount *);
 extern int iterate_mounts(int (*)(struct vfsmount *, void *), void *,
                           struct vfsmount *);
-extern int vfs_statfs(struct dentry *, struct kstatfs *);
+extern int vfs_statfs(struct path *, struct kstatfs *);
+extern int statfs_by_dentry(struct dentry *, struct kstatfs *);
 extern int freeze_super(struct super_block *super);
 extern int thaw_super(struct super_block *super);
 
@@ -2166,9 +2167,8 @@ extern void iput(struct inode *);
 extern struct inode * igrab(struct inode *);
 extern ino_t iunique(struct super_block *, ino_t);
 extern int inode_needs_sync(struct inode *inode);
-extern void generic_delete_inode(struct inode *inode);
-extern void generic_drop_inode(struct inode *inode);
-extern int generic_detach_inode(struct inode *inode);
+extern int generic_delete_inode(struct inode *inode);
+extern int generic_drop_inode(struct inode *inode);
 
 extern struct inode *ilookup5_nowait(struct super_block *sb,
                 unsigned long hashval, int (*test)(struct inode *, void *),
@@ -2185,7 +2185,7 @@ extern void unlock_new_inode(struct inode *);
 
 extern void __iget(struct inode * inode);
 extern void iget_failed(struct inode *);
-extern void clear_inode(struct inode *);
+extern void end_writeback(struct inode *);
 extern void destroy_inode(struct inode *);
 extern void __destroy_inode(struct inode *);
 extern struct inode *new_inode(struct super_block *);
@@ -2271,16 +2271,6 @@ static inline int xip_truncate_page(struct address_space *mapping, loff_t from)
 struct bio;
 typedef void (dio_submit_t)(int rw, struct bio *bio, struct inode *inode,
                             loff_t file_offset);
-void dio_end_io(struct bio *bio, int error);
-
-ssize_t __blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb, struct inode *inode,
-        struct block_device *bdev, const struct iovec *iov, loff_t offset,
-        unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
-        dio_submit_t submit_io, int lock_type);
-ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
-        struct block_device *bdev, const struct iovec *iov, loff_t offset,
-        unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
-        dio_submit_t submit_io, int lock_type);
 
 enum {
         /* need locking between buffered and direct access */
@@ -2290,24 +2280,13 @@ enum {
         DIO_SKIP_HOLES  = 0x02,
 };
 
-static inline ssize_t blockdev_direct_IO_newtrunc(int rw, struct kiocb *iocb,
-        struct inode *inode, struct block_device *bdev, const struct iovec *iov,
-        loff_t offset, unsigned long nr_segs, get_block_t get_block,
-        dio_iodone_t end_io)
-{
-        return __blockdev_direct_IO_newtrunc(rw, iocb, inode, bdev, iov, offset,
-                                    nr_segs, get_block, end_io, NULL,
-                                    DIO_LOCKING | DIO_SKIP_HOLES);
-}
+void dio_end_io(struct bio *bio, int error);
+
+ssize_t __blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
+        struct block_device *bdev, const struct iovec *iov, loff_t offset,
+        unsigned long nr_segs, get_block_t get_block, dio_iodone_t end_io,
+        dio_submit_t submit_io, int flags);
 
-static inline ssize_t blockdev_direct_IO_no_locking_newtrunc(int rw, struct kiocb *iocb,
-        struct inode *inode, struct block_device *bdev, const struct iovec *iov,
-        loff_t offset, unsigned long nr_segs, get_block_t get_block,
-        dio_iodone_t end_io)
-{
-        return __blockdev_direct_IO_newtrunc(rw, iocb, inode, bdev, iov, offset,
-                                nr_segs, get_block, end_io, NULL, 0);
-}
 static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb,
         struct inode *inode, struct block_device *bdev, const struct iovec *iov,
         loff_t offset, unsigned long nr_segs, get_block_t get_block,
@@ -2317,15 +2296,6 @@ static inline ssize_t blockdev_direct_IO(int rw, struct kiocb *iocb,
                                     nr_segs, get_block, end_io, NULL,
                                     DIO_LOCKING | DIO_SKIP_HOLES);
 }
-
-static inline ssize_t blockdev_direct_IO_no_locking(int rw, struct kiocb *iocb,
-        struct inode *inode, struct block_device *bdev, const struct iovec *iov,
-        loff_t offset, unsigned long nr_segs, get_block_t get_block,
-        dio_iodone_t end_io)
-{
-        return __blockdev_direct_IO(rw, iocb, inode, bdev, iov, offset,
-                                    nr_segs, get_block, end_io, NULL, 0);
-}
 #endif
 
 extern const struct file_operations generic_ro_fops;
@@ -2387,7 +2357,6 @@ extern int simple_link(struct dentry *, struct inode *, struct dentry *);
 extern int simple_unlink(struct inode *, struct dentry *);
 extern int simple_rmdir(struct inode *, struct dentry *);
 extern int simple_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
-extern int simple_setsize(struct inode *, loff_t);
 extern int noop_fsync(struct file *, int);
 extern int simple_empty(struct dentry *);
 extern int simple_readpage(struct file *file, struct page *page);
@@ -2424,8 +2393,7 @@ extern int buffer_migrate_page(struct address_space *,
 
 extern int inode_change_ok(const struct inode *, struct iattr *);
 extern int inode_newsize_ok(const struct inode *, loff_t offset);
-extern int __must_check inode_setattr(struct inode *, const struct iattr *);
-extern void generic_setattr(struct inode *inode, const struct iattr *attr);
+extern void setattr_copy(struct inode *inode, const struct iattr *attr);
 
 extern void file_update_time(struct file *file);
 
diff --git a/include/linux/mbcache.h b/include/linux/mbcache.h
index a09b84e4fdb4..54cbbac1e71d 100644
--- a/include/linux/mbcache.h
+++ b/include/linux/mbcache.h
@@ -4,9 +4,6 @@
   (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
 */
 
-/* Hardwire the number of additional indexes */
-#define MB_CACHE_INDEXES_COUNT 1
-
 struct mb_cache_entry {
         struct list_head                e_lru_list;
         struct mb_cache                 *e_cache;
@@ -18,17 +15,12 @@ struct mb_cache_entry {
         struct {
                 struct list_head        o_list;
                 unsigned int            o_key;
-        } e_indexes[0];
-};
-
-struct mb_cache_op {
-        int (*free)(struct mb_cache_entry *, gfp_t);
+        } e_index;
 };
 
 /* Functions on caches */
 
-struct mb_cache * mb_cache_create(const char *, struct mb_cache_op *, size_t,
-                                  int, int);
+struct mb_cache *mb_cache_create(const char *, int);
 void mb_cache_shrink(struct block_device *);
 void mb_cache_destroy(struct mb_cache *);
 
@@ -36,17 +28,15 @@ void mb_cache_destroy(struct mb_cache *);
 
 struct mb_cache_entry *mb_cache_entry_alloc(struct mb_cache *, gfp_t);
 int mb_cache_entry_insert(struct mb_cache_entry *, struct block_device *,
-                          sector_t, unsigned int[]);
+                          sector_t, unsigned int);
 void mb_cache_entry_release(struct mb_cache_entry *);
 void mb_cache_entry_free(struct mb_cache_entry *);
 struct mb_cache_entry *mb_cache_entry_get(struct mb_cache *,
                                           struct block_device *,
                                           sector_t);
-#if !defined(MB_CACHE_INDEXES_COUNT) || (MB_CACHE_INDEXES_COUNT > 0)
-struct mb_cache_entry *mb_cache_entry_find_first(struct mb_cache *cache, int,
+struct mb_cache_entry *mb_cache_entry_find_first(struct mb_cache *cache,
                                                  struct block_device *, 
                                                  unsigned int);
-struct mb_cache_entry *mb_cache_entry_find_next(struct mb_cache_entry *, int,
+struct mb_cache_entry *mb_cache_entry_find_next(struct mb_cache_entry *,
                                                 struct block_device *, 
                                                 unsigned int);
-#endif
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7a9ab7db1975..709f6728fc90 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -815,6 +815,7 @@ static inline void unmap_shared_mapping_range(struct address_space *mapping,
 }
 
 extern void truncate_pagecache(struct inode *inode, loff_t old, loff_t new);
+extern void truncate_setsize(struct inode *inode, loff_t newsize);
 extern int vmtruncate(struct inode *inode, loff_t offset);
 extern int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end);
 
diff --git a/include/linux/reiserfs_fs.h b/include/linux/reiserfs_fs.h
index ba394163dea1..91a4177e60ce 100644
--- a/include/linux/reiserfs_fs.h
+++ b/include/linux/reiserfs_fs.h
@@ -2033,7 +2033,7 @@ void reiserfs_read_locked_inode(struct inode *inode,
                                 struct reiserfs_iget_args *args);
 int reiserfs_find_actor(struct inode *inode, void *p);
 int reiserfs_init_locked_inode(struct inode *inode, void *p);
-void reiserfs_delete_inode(struct inode *inode);
+void reiserfs_evict_inode(struct inode *inode);
 int reiserfs_write_inode(struct inode *inode, struct writeback_control *wbc);
 int reiserfs_get_block(struct inode *inode, sector_t block,
                        struct buffer_head *bh_result, int create);
diff --git a/include/linux/reiserfs_fs_i.h b/include/linux/reiserfs_fs_i.h
index 89f4d3abbf5a..97959bdfe214 100644
--- a/include/linux/reiserfs_fs_i.h
+++ b/include/linux/reiserfs_fs_i.h
@@ -25,7 +25,6 @@ typedef enum {
         i_link_saved_truncate_mask = 0x0020,
         i_has_xattr_dir = 0x0040,
         i_data_log = 0x0080,
-        i_ever_mapped = 0x0100
 } reiserfs_inode_flags;
 
 struct reiserfs_inode_info {
@@ -53,7 +52,8 @@ struct reiserfs_inode_info {
          ** flushed */
         unsigned int i_trans_id;
         struct reiserfs_journal_list *i_jl;
-        struct mutex i_mmap;
+        atomic_t openers;
+        struct mutex tailpack;
 #ifdef CONFIG_REISERFS_FS_XATTR
         struct rw_semaphore i_xattr_sem;
 #endif
diff --git a/include/linux/statfs.h b/include/linux/statfs.h
index b34cc829f98d..0166d320a75d 100644
--- a/include/linux/statfs.h
+++ b/include/linux/statfs.h
@@ -2,7 +2,6 @@
 #define _LINUX_STATFS_H
 
 #include <linux/types.h>
-
 #include <asm/statfs.h>
 
 struct kstatfs {
@@ -16,7 +15,29 @@ struct kstatfs {
         __kernel_fsid_t f_fsid;
         long f_namelen;
         long f_frsize;
-        long f_spare[5];
+        long f_flags;
+        long f_spare[4];
 };
 
+/*
+ * Definitions for the flag in f_flag.
+ *
+ * Generally these flags are equivalent to the MS_ flags used in the mount
+ * ABI.  The exception is ST_VALID which has the same value as MS_REMOUNT
+ * which doesn't make any sense for statfs.
+ */
+#define ST_RDONLY       0x0001  /* mount read-only */
+#define ST_NOSUID       0x0002  /* ignore suid and sgid bits */
+#define ST_NODEV        0x0004  /* disallow access to device special files */
+#define ST_NOEXEC       0x0008  /* disallow program execution */
+#define ST_SYNCHRONOUS  0x0010  /* writes are synced at once */
+#define ST_VALID        0x0020  /* f_flags support is implemented */
+#define ST_MANDLOCK     0x0040  /* allow mandatory locks on an FS */
+/* 0x0080 used for ST_WRITE in glibc */
+/* 0x0100 used for ST_APPEND in glibc */
+/* 0x0200 used for ST_IMMUTABLE in glibc */
+#define ST_NOATIME      0x0400  /* do not update access times */
+#define ST_NODIRATIME   0x0800  /* do not update directory access times */
+#define ST_RELATIME     0x1000  /* update atime relative to mtime/ctime */
+
 #endif