Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (21 commits)
  ext3: PTR_ERR return of wrong pointer in setup_new_group_blocks()
  ext3: Fix data / filesystem corruption when write fails to copy data
  ext4: Support for 64-bit quota format
  ext3: Support for vfsv1 quota format
  quota: Implement quota format with 64-bit space and inode limits
  quota: Move definition of QFMT_OCFS2 to linux/quota.h
  ext2: fix comment in ext2_find_entry about return values
  ext3: Unify log messages in ext3
  ext2: clear uptodate flag on super block I/O error
  ext2: Unify log messages in ext2
  ext3: make "norecovery" an alias for "noload"
  ext3: Don't update the superblock in ext3_statfs()
  ext3: journal all modifications in ext3_xattr_set_handle
  ext2: Explicitly assign values to on-disk enum of filetypes
  quota: Fix WARN_ON in lookup_one_len
  const: struct quota_format_ops
  ubifs: remove manual O_SYNC handling
  afs: remove manual O_SYNC handling
  kill wait_on_page_writeback_range
  vfs: Implement proper O_SYNC semantics
  ...

5 files changed, 35 insertions, 16 deletions

diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index 495dc8af4044..681ddf3e844c 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -3,8 +3,6 @@
 
 #include <linux/types.h>
 
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
 #define O_ACCMODE       00000003
 #define O_RDONLY        00000000
 #define O_WRONLY        00000001
@@ -27,8 +25,8 @@
 #ifndef O_NONBLOCK
 #define O_NONBLOCK      00004000
 #endif
-#ifndef O_SYNC
-#define O_SYNC          00010000
+#ifndef O_DSYNC
+#define O_DSYNC         00010000        /* used to be O_SYNC, see below */
 #endif
 #ifndef FASYNC
 #define FASYNC          00020000        /* fcntl, for BSD compatibility */
@@ -51,6 +49,25 @@
 #ifndef O_CLOEXEC
 #define O_CLOEXEC       02000000        /* set close_on_exec */
 #endif
+
+/*
+ * Before Linux 2.6.32 only O_DSYNC semantics were implemented, but using
+ * the O_SYNC flag.  We continue to use the existing numerical value
+ * for O_DSYNC semantics now, but using the correct symbolic name for it.
+ * This new value is used to request true Posix O_SYNC semantics.  It is
+ * defined in this strange way to make sure applications compiled against
+ * new headers get at least O_DSYNC semantics on older kernels.
+ *
+ * This has the nice side-effect that we can simply test for O_DSYNC
+ * wherever we do not care if O_DSYNC or O_SYNC is used.
+ *
+ * Note: __O_SYNC must never be used directly.
+ */
+#ifndef O_SYNC
+#define __O_SYNC        04000000
+#define O_SYNC          (__O_SYNC|O_DSYNC)
+#endif
+
 #ifndef O_NDELAY
 #define O_NDELAY        O_NONBLOCK
 #endif
diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h
index 121720d74e15..2dfa7076e8b6 100644
--- a/include/linux/ext2_fs.h
+++ b/include/linux/ext2_fs.h
@@ -565,14 +565,14 @@ struct ext2_dir_entry_2 {
  * other bits are reserved for now.
  */
 enum {
-        EXT2_FT_UNKNOWN,
-        EXT2_FT_REG_FILE,
-        EXT2_FT_DIR,
-        EXT2_FT_CHRDEV,
-        EXT2_FT_BLKDEV,
-        EXT2_FT_FIFO,
-        EXT2_FT_SOCK,
-        EXT2_FT_SYMLINK,
+        EXT2_FT_UNKNOWN         = 0,
+        EXT2_FT_REG_FILE        = 1,
+        EXT2_FT_DIR             = 2,
+        EXT2_FT_CHRDEV          = 3,
+        EXT2_FT_BLKDEV          = 4,
+        EXT2_FT_FIFO            = 5,
+        EXT2_FT_SOCK            = 6,
+        EXT2_FT_SYMLINK         = 7,
         EXT2_FT_MAX
 };
 
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 7499b3667798..6b049030fbe6 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -918,6 +918,8 @@ extern void ext3_abort (struct super_block *, const char *, const char *, ...)
         __attribute__ ((format (printf, 3, 4)));
 extern void ext3_warning (struct super_block *, const char *, const char *, ...)
         __attribute__ ((format (printf, 3, 4)));
+extern void ext3_msg(struct super_block *, const char *, const char *, ...)
+        __attribute__ ((format (printf, 3, 4)));
 extern void ext3_update_dynamic_rev (struct super_block *sb);
 
 #define ext3_std_error(sb, errno)                               \
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 891f7d642e5c..a057f48eb156 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2091,8 +2091,6 @@ extern int filemap_fdatawait_range(struct address_space *, loff_t lstart,
 extern int filemap_write_and_wait(struct address_space *mapping);
 extern int filemap_write_and_wait_range(struct address_space *mapping,
                                         loff_t lstart, loff_t lend);
-extern int wait_on_page_writeback_range(struct address_space *mapping,
-                                pgoff_t start, pgoff_t end);
 extern int __filemap_fdatawrite_range(struct address_space *mapping,
                                 loff_t start, loff_t end, int sync_mode);
 extern int filemap_fdatawrite_range(struct address_space *mapping,
diff --git a/include/linux/quota.h b/include/linux/quota.h
index ce9a9b2e5cd4..e70e62194243 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -73,6 +73,8 @@
 /* Quota format type IDs */
 #define QFMT_VFS_OLD 1
 #define QFMT_VFS_V0 2
+#define QFMT_OCFS2 3
+#define QFMT_VFS_V1 4
 
 /* Size of block in which space limits are passed through the quota
  * interface */
@@ -334,7 +336,7 @@ struct quotactl_ops {
 
 struct quota_format_type {
         int qf_fmt_id;  /* Quota format id */
-        struct quota_format_ops *qf_ops;        /* Operations of format */
+        const struct quota_format_ops *qf_ops;  /* Operations of format */
         struct module *qf_owner;                /* Module implementing quota format */
         struct quota_format_type *qf_next;
 };
@@ -394,7 +396,7 @@ struct quota_info {
         struct rw_semaphore dqptr_sem;          /* serialize ops using quota_info struct, pointers from inode to dquots */
         struct inode *files[MAXQUOTAS];         /* inodes of quotafiles */
         struct mem_dqinfo info[MAXQUOTAS];      /* Information for each quota type */
-        struct quota_format_ops *ops[MAXQUOTAS];        /* Operations for each type */
+        const struct quota_format_ops *ops[MAXQUOTAS];  /* Operations for each type */
 };
 
 int register_quota_format(struct quota_format_type *fmt);