diff options
| -rw-r--r-- | fs/btrfs/scrub.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index 51c342b9f5ef..f2f8803ea79c 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -2686,10 +2686,23 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx, wait_event(sctx->list_wait, atomic_read(&sctx->bios_in_flight) == 0); - atomic_set(&sctx->wr_ctx.flush_all_writes, 0); + atomic_inc(&fs_info->scrubs_paused); + wake_up(&fs_info->scrub_pause_wait); + + /* + * must be called before we decrease @scrub_paused. + * make sure we don't block transaction commit while + * we are waiting pending workers finished. + */ wait_event(sctx->list_wait, atomic_read(&sctx->workers_pending) == 0); - scrub_blocked_if_needed(fs_info); + atomic_set(&sctx->wr_ctx.flush_all_writes, 0); + + mutex_lock(&fs_info->scrub_lock); + __scrub_blocked_if_needed(fs_info); + atomic_dec(&fs_info->scrubs_paused); + mutex_unlock(&fs_info->scrub_lock); + wake_up(&fs_info->scrub_pause_wait); btrfs_put_block_group(cache); if (ret) |