btrfs: silence warning if replace is canceled

When we successfully cancel the device replace, its scrub worker returns
-ECANCELED, which is then passed to btrfs_dev_replace_finishing.

It cleans up based on the returned status and propagates the same
-ECANCELED back the parent function. As of now only user can cancel the
replace-scrub, so its ok to silence the warning here.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 85d93bd3b27a..ead4f3803527 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -503,7 +503,7 @@ static int btrfs_dev_replace_start(struct btrfs_fs_info *fs_info,
         ret = btrfs_dev_replace_finishing(fs_info, ret);
         if (ret == -EINPROGRESS) {
                 ret = BTRFS_IOCTL_DEV_REPLACE_RESULT_SCRUB_INPROGRESS;
-        } else {
+        } else if (ret != -ECANCELED) {
                 WARN_ON(ret);
         }
 
@@ -966,7 +966,7 @@ static int btrfs_dev_replace_kthread(void *data)
                               btrfs_device_get_total_bytes(dev_replace->srcdev),
                               &dev_replace->scrub_progress, 0, 1);
         ret = btrfs_dev_replace_finishing(fs_info, ret);
-        WARN_ON(ret);
+        WARN_ON(ret && ret != -ECANCELED);
 
         clear_bit(BTRFS_FS_EXCL_OP, &fs_info->flags);
         return 0;