Btrfs: hardcode GFP_NOFS for btrfs_bio_clone_partial

We only pass GFP_NOFS to btrfs_bio_clone_partial, so lets hardcode it.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/extent_io.c

@@ -2721,14 +2721,13 @@ struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
 	return bio;
 }
 
-struct bio *btrfs_bio_clone_partial(struct bio *orig, gfp_t gfp_mask,
-				    int offset, int size)
+struct bio *btrfs_bio_clone_partial(struct bio *orig, int offset, int size)
 {
 	struct bio *bio;
 	struct btrfs_io_bio *btrfs_bio;
 
 	/* this will never fail when it's backed by a bioset */
-	bio = bio_clone_fast(orig, gfp_mask, btrfs_bioset);
+	bio = bio_clone_fast(orig, GFP_NOFS, btrfs_bioset);
 	ASSERT(bio);
 
 	btrfs_bio = btrfs_io_bio(bio);

fs/btrfs/extent_io.h

@@ -467,8 +467,7 @@ btrfs_bio_alloc(struct block_device *bdev, u64 first_sector, int nr_vecs,
 		gfp_t gfp_flags);
 struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs);
 struct bio *btrfs_bio_clone(struct bio *bio, gfp_t gfp_mask);
-struct bio *btrfs_bio_clone_partial(struct bio *orig, gfp_t gfp_mask,
-				    int offset, int size);
+struct bio *btrfs_bio_clone_partial(struct bio *orig, int offset, int size);
 
 struct btrfs_fs_info;
 struct btrfs_inode;

fs/btrfs/inode.c

@@ -8514,7 +8514,7 @@ static int btrfs_submit_direct_hook(struct btrfs_dio_private *dip,
 		 * This will never fail as it's passing GPF_NOFS and
 		 * the allocation is backed by btrfs_bioset.
 		 */
-		bio = btrfs_bio_clone_partial(orig_bio, GFP_NOFS, clone_offset,
+		bio = btrfs_bio_clone_partial(orig_bio, clone_offset,
 					      clone_len);
 		bio->bi_private = dip;
 		bio->bi_end_io = btrfs_end_dio_bio;