On 26/05/2021 01:08, David Sterba wrote:
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+ Signed-off-by: David Sterba dsterba@suse.com
Reviewed-by: Anand Jain anand.jain@oracle.com
Thanks.
fs/btrfs/transaction.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index e0a82aa7da89..22951621363f 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -1406,8 +1406,10 @@ 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);