Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6-omap-h63xx.git] / include / linux / fs.h

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 18cfbf76ec5be8f1f20ddb2fad22f7cd6101596c..98ffb6ead434549139709be26736a85aca3b07a2 100644 (file)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1284,8 +1284,10 @@ struct super_operations {
  *
  * I_DIRTY_SYNC                Inode is dirty, but doesn't have to be written on
  *                     fdatasync().  i_atime is the usual cause.
- * I_DIRTY_DATASYNC    Inode is dirty and must be written on fdatasync(), f.e.
- *                     because i_size changed.
+ * I_DIRTY_DATASYNC    Data-related inode changes pending. We keep track of
+ *                     these changes separately from I_DIRTY_SYNC so that we
+ *                     don't have to write inode on fdatasync() when only
+ *                     mtime has changed in it.
  * I_DIRTY_PAGES       Inode has dirty pages.  Inode itself may be clean.
  * I_NEW               get_new_inode() sets i_state to I_LOCK|I_NEW.  Both
  *                     are cleared by unlock_new_inode(), called from iget().