From 86b9c6f3f891019b26f8e5bb11a6faa96bba54a8 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Wed, 10 Dec 2014 15:41:53 -0800 Subject: [PATCH] ocfs2: remove filesize checks for sync I/O journal commit Filesize is not a good indication that the file needs to be synced. An example where this breaks is: 1. Open the file in O_SYNC|O_RDWR 2. Read a small portion of the file (say 64 bytes) 3. Lseek to starting of the file 4. Write 64 bytes If the node crashes, it is not written out to disk because this was not committed in the journal and the other node which reads the file after recovery reads stale data (even if the write on the other node was successful) Signed-off-by: Goldwyn Rodrigues Reviewed-by: Mark Fasheh Cc: Joel Becker Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ocfs2/file.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 324dc93ac896..69fb9f75b082 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2381,9 +2381,7 @@ static ssize_t ocfs2_file_write_iter(struct kiocb *iocb, if (ret < 0) written = ret; - if (!ret && ((old_size != i_size_read(inode)) || - (old_clusters != OCFS2_I(inode)->ip_clusters) || - has_refcount)) { + if (!ret) { ret = jbd2_journal_force_commit(osb->journal->j_journal); if (ret < 0) written = ret;