[PATCH] reiserfs: fix journaling issue regarding fsync()

When write() extends a file(i_size is increased) and fsync() is called,
change of inode must be written to journaling area through fsync().
But,currently the i_trans_id is not correctly updated when i_size is
increased.  So fsync() does not kick the journal writer.

Reiserfs_file_write() already updates the transaction when blocks are
allocated, but the case when i_size increases and new blocks are not added
is not correctly treated.

Following patch fix this bug.

Signed-off-by: Hisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <mason@suse.com>
Cc: Hans Reiser <reiser@namesys.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/fs/reiserfs/file.c b/fs/reiserfs/file.c
index 752cea12e30fcdf0e5040feecb6b75b5ab97449e..f318b58510fd896b2b68c04fadb5ca6af5daa3fc 100644 (file)
--- a/fs/reiserfs/file.c
+++ b/fs/reiserfs/file.c
@@ -860,8 +860,12 @@ static int reiserfs_submit_file_region_for_write(struct reiserfs_transaction_han
                        // this sets the proper flags for O_SYNC to trigger a commit
                        mark_inode_dirty(inode);
                        reiserfs_write_unlock(inode->i_sb);
-               } else
+               } else {
+                       reiserfs_write_lock(inode->i_sb);
+                       reiserfs_update_inode_transaction(inode);
                        mark_inode_dirty(inode);
+                       reiserfs_write_unlock(inode->i_sb);
+               }
 
                sd_update = 1;
        }