From: Sage Weil Date: Fri, 24 Jul 2009 17:17:44 +0000 (-0400) Subject: Btrfs: make flushoncommit mount option correctly wait on ordered_extents X-Git-Tag: v2.6.31-rc5~7^2~7 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ebecd3d9d2adba144c15f1d35c78e0c26ead1bfd;p=platform%2Fupstream%2Fkernel-adaptation-pc.git Btrfs: make flushoncommit mount option correctly wait on ordered_extents The commit_transaction call to wait_ordered_extents when snap_pending passes nocow_only=1 to process only NOCOW or PREALLOC extents. This isn't correct for the 'flushoncommit' mode, as it skips extents we just started IO on in start_delalloc_inodes. So, in the flushoncommit case, wait on all ordered extents. Otherwise, only pass the nocow_only flag to wait_ordered_extents if snap_pending. Signed-off-by: Sage Weil Signed-off-by: Chris Mason --- diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index 32454d1c..e51d2bc 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -942,9 +942,11 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, mutex_unlock(&root->fs_info->trans_mutex); - if (flush_on_commit || snap_pending) { - if (flush_on_commit) - btrfs_start_delalloc_inodes(root); + if (flush_on_commit) { + btrfs_start_delalloc_inodes(root); + ret = btrfs_wait_ordered_extents(root, 0); + BUG_ON(ret); + } else if (snap_pending) { ret = btrfs_wait_ordered_extents(root, 1); BUG_ON(ret); }