fs: have submit_bh users pass in op and flags separately

This has submit_bh users pass in the operation and flags separately,
so submit_bh_wbc can setup the bio op and bi_rw flags on the bio that
is submitted.

Signed-off-by: Mike Christie <mchristi@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c
index eccb1c8..982d1e3 100644
--- a/fs/nilfs2/btree.c
+++ b/fs/nilfs2/btree.c
@@ -476,7 +476,8 @@
 	sector_t submit_ptr = 0;
 	int ret;
 
-	ret = nilfs_btnode_submit_block(btnc, ptr, 0, READ, &bh, &submit_ptr);
+	ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, 0, &bh,
+					&submit_ptr);
 	if (ret) {
 		if (ret != -EEXIST)
 			return ret;
@@ -492,7 +493,8 @@
 		     n > 0 && i < ra->ncmax; n--, i++) {
 			ptr2 = nilfs_btree_node_get_ptr(ra->node, i, ra->ncmax);
 
-			ret = nilfs_btnode_submit_block(btnc, ptr2, 0, READA,
+			ret = nilfs_btnode_submit_block(btnc, ptr2, 0,
+							REQ_OP_READ, REQ_RAHEAD,
 							&ra_bh, &submit_ptr);
 			if (likely(!ret || ret == -EEXIST))
 				brelse(ra_bh);