fs: pass exact type of data dirties to ->dirty_inode

Tell the filesystem if we just updated timestamp (I_DIRTY_SYNC) or
anything else, so that the filesystem can track internally if it
needs to push out a transaction for fdatasync or not.

This is just the prototype change with no user for it yet.  I plan
to push large XFS changes for the next merge window, and getting
this trivial infrastructure in this window would help a lot to avoid
tree interdependencies.

Also remove incorrect comments that ->dirty_inode can't block.  That
has been changed a long time ago, and many implementations rely on it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig 2011-05-27 06:53:02 -04:00 committed by Al Viro
commit aa38572954
19 changed files with 21 additions and 23 deletions

View file

@ -909,7 +909,7 @@ extern int ext3_setattr (struct dentry *, struct iattr *);
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 *);
extern void ext3_dirty_inode(struct inode *, int);
extern int ext3_change_inode_journal_flag(struct inode *, int);
extern int ext3_get_inode_loc(struct inode *, struct ext3_iloc *);
extern int ext3_can_truncate(struct inode *inode);