[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 <[e-mail]>
Cc: Jeff Mahoney <[e-mail]>
Cc: Chris Mason <[e-mail]>
Cc: Hans Reiser <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

fs/reiserfs/file.c

···
 			// 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;
 	}