From 5d5e815618c4a8b53806845268c951201d14af6e Mon Sep 17 00:00:00 2001 From: Jeff Mahoney Date: Wed, 14 Dec 2005 14:38:36 -0500 Subject: [PATCH] reiserfs: skip commit on io error This should have been part of the original io error patch, but got dropped somewhere along the way. It's extremely important when handling the i/o error in the journal to not commit the transaction with corrupt data. This patch adds that code back in. Signed-off-by: Jeff Mahoney Signed-off-by: Linus Torvalds --- fs/reiserfs/journal.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) (limited to 'fs/reiserfs') diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 68b7b78638f..3f17ef844fb 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -1039,6 +1039,10 @@ static int flush_commit_list(struct super_block *s, } atomic_dec(&journal->j_async_throttle); + /* We're skipping the commit if there's an error */ + if (retval || reiserfs_is_journal_aborted(journal)) + barrier = 0; + /* wait on everything written so far before writing the commit * if we are in barrier mode, send the commit down now */ @@ -1077,10 +1081,16 @@ static int flush_commit_list(struct super_block *s, BUG_ON(atomic_read(&(jl->j_commit_left)) != 1); if (!barrier) { - if (buffer_dirty(jl->j_commit_bh)) - BUG(); - mark_buffer_dirty(jl->j_commit_bh); - sync_dirty_buffer(jl->j_commit_bh); + /* If there was a write error in the journal - we can't commit + * this transaction - it will be invalid and, if successful, + * will just end up propogating the write error out to + * the file system. */ + if (likely(!retval && !reiserfs_is_journal_aborted (journal))) { + if (buffer_dirty(jl->j_commit_bh)) + BUG(); + mark_buffer_dirty(jl->j_commit_bh) ; + sync_dirty_buffer(jl->j_commit_bh) ; + } } else wait_on_buffer(jl->j_commit_bh); -- cgit v1.2.3-18-g5258