---

yaml --- r: 127879 b: refs/heads/master c: e623ddb h: refs/heads/master i: 127877: a6bf923 127875: 348c53d 127871: 262e8f9 v: v3
git-mirror · Jan 2, 2009 · 42aef75 · 42aef75
1 parent a771d0b
commit 42aef75
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Showing 2 changed files with 15 additions and 13 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4f10aae0d1a285df6b16bf6ca5abd366140fd371
+refs/heads/master: e623ddb4e940b266adc77ba1cc28a3554aa90e79
diff --git a/trunk/fs/bio.c b/trunk/fs/bio.c
@@ -815,28 +815,30 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
 
 	ret = 0;
 	i = 0;
+	if (map_data)
+		nr_pages = 1 << map_data->page_order;
 	while (len) {
-		unsigned int bytes;
-
-		if (map_data)
-			bytes = 1U << (PAGE_SHIFT + map_data->page_order);
-		else
-			bytes = PAGE_SIZE;
+		unsigned int bytes = PAGE_SIZE;
 
 		if (bytes > len)
 			bytes = len;
 
 		if (map_data) {
-			if (i == map_data->nr_entries) {
+			if (i == map_data->nr_entries * nr_pages) {
 				ret = -ENOMEM;
 				break;
 			}
-			page = map_data->pages[i++];
-		} else
+
+			page = map_data->pages[i / nr_pages];
+			page += (i % nr_pages);
+
+			i++;
+		} else {
 			page = alloc_page(q->bounce_gfp | gfp_mask);
-		if (!page) {
-			ret = -ENOMEM;
-			break;
+			if (!page) {
+				ret = -ENOMEM;
+				break;
+			}
 		}
 
 		if (bio_add_pc_page(q, bio, page, bytes, 0) < bytes)