btrfs: remove redundant warning message in btrfs_check_uuid_tree()

If we fail to start the UUID rescan kthread, btrfs_check_uuid_tree() logs
an error message and returns the error to the single caller, open_ctree().

This however is redundant since the caller already logs an error message,
which is also more informative since it logs the error code. Some remove
the warning message from btrfs_check_uuid_tree() as it doesn't add any
value.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index de8ce9c588feace46b207aff9739e1fd0239cef5..b855e2cec2ecb143bfb17aeb41135d5bc801586a 100644 (file)
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2972,7 +2972,6 @@ static int btrfs_check_uuid_tree(struct btrfs_fs_info *fs_info)
        task = kthread_run(btrfs_uuid_rescan_kthread, fs_info, "btrfs-uuid");
        if (IS_ERR(task)) {
                /* fs_info->update_uuid_tree_gen remains 0 in all error case */
-               btrfs_warn(fs_info, "failed to start uuid_rescan task");
                up(&fs_info->uuid_tree_rescan_sem);
                return PTR_ERR(task);
        }