From c4984eed9087d410d33f5f75d2e74bf93eb46b94 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Tue, 7 Jul 2020 18:30:06 +0200 Subject: btrfs: clear defrag status of a root if starting transaction fails commit 6819703f5a365c95488b07066a8744841bf14231 upstream. The defrag loop processes leaves in batches and starting transaction for each. The whole defragmentation on a given root is protected by a bit but in case the transaction fails, the bit is not cleared In case the transaction fails the bit would prevent starting defragmentation again, so make sure it's cleared. CC: stable@vger.kernel.org # 4.4+ Reviewed-by: Qu Wenruo Reviewed-by: Anand Jain Signed-off-by: David Sterba Signed-off-by: Greg Kroah-Hartman --- fs/btrfs/transaction.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'fs/btrfs') diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index a066ad581976..da40912fe086 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1319,8 +1319,10 @@ int btrfs_defrag_root(struct btrfs_root *root) while (1) { trans = btrfs_start_transaction(root, 0); - if (IS_ERR(trans)) - return PTR_ERR(trans); + if (IS_ERR(trans)) { + ret = PTR_ERR(trans); + break; + } ret = btrfs_defrag_leaves(trans, root); -- cgit v1.2.3