On Fri, Nov 30, 2018 at 01:15:23PM +0800, Anand Jain wrote:
> @@ -3757,10 +3757,13 @@ static noinline_for_stack int
> scrub_workers_get(struct btrfs_fs_info *fs_info,
>
> static noinline_for_stack void scrub_workers_put(struct btrfs_fs_info
> *fs_info)
> {
> +
Circular locking dependency check reports warning[1], that's because
the btrfs_scrub_dev() calls the stack #0 below with, the
fs_info::scrub_lock held. The test case leading to this warning..
mkfs.btrfs -fq /dev/sdb && mount /dev/sdb /btrfs
btrfs scrub start -B /btrfs
In fact we have
