gfs2: Use bio_add_folio_nofail()

As the label says, we've just allocated a new BIO so we know
we can add this folio to it.  We now have bio_add_folio_nofail()
for this purpose.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

Author: Matthew Wilcox (Oracle)

fs/gfs2/lops.c

@@ -562,8 +562,7 @@ int gfs2_find_jhead(struct gfs2_jdesc *jd, struct gfs2_log_header_host *head)
 			bio = gfs2_log_alloc_bio(sdp, dblock, gfs2_end_log_read);
 			bio->bi_opf = REQ_OP_READ;
 add_block_to_new_bio:
-			if (!bio_add_folio(bio, folio, bsize, off))
-				BUG();
+			bio_add_folio_nofail(bio, folio, bsize, off);
 block_added:
 			off += bsize;
 			if (off == folio_size(folio))