block: remove the second argument of k[un]map_atomic()

Signed-off-by: Cong Wang <amwang@redhat.com>
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index d59edea..ba66e44 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -987,14 +987,14 @@
 
 	while (copy_size > 0) {
 		struct bio_vec *src_bvl = bio_iovec_idx(src_bio, seg);
-		void *vfrom = kmap_atomic(src_bvl->bv_page, KM_USER0) +
+		void *vfrom = kmap_atomic(src_bvl->bv_page) +
 			src_bvl->bv_offset + offs;
 		void *vto = page_address(dst_page) + dst_offs;
 		int len = min_t(int, copy_size, src_bvl->bv_len - offs);
 
 		BUG_ON(len < 0);
 		memcpy(vto, vfrom, len);
-		kunmap_atomic(vfrom, KM_USER0);
+		kunmap_atomic(vfrom);
 
 		seg++;
 		offs = 0;
@@ -1019,10 +1019,10 @@
 	offs = 0;
 	for (f = 0; f < pkt->frames; f++) {
 		if (bvec[f].bv_page != pkt->pages[p]) {
-			void *vfrom = kmap_atomic(bvec[f].bv_page, KM_USER0) + bvec[f].bv_offset;
+			void *vfrom = kmap_atomic(bvec[f].bv_page) + bvec[f].bv_offset;
 			void *vto = page_address(pkt->pages[p]) + offs;
 			memcpy(vto, vfrom, CD_FRAMESIZE);
-			kunmap_atomic(vfrom, KM_USER0);
+			kunmap_atomic(vfrom);
 			bvec[f].bv_page = pkt->pages[p];
 			bvec[f].bv_offset = offs;
 		} else {