btrfs: sink gfp parameter to btrfs_bio_clone

All callers pass GFP_NOFS.

Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index ea99121..c10d75f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -6256,7 +6256,7 @@ int btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
 		}
 
 		if (dev_nr < total_devs - 1)
-			bio = btrfs_bio_clone(first_bio, GFP_NOFS);
+			bio = btrfs_bio_clone(first_bio);
 		else
 			bio = first_bio;