---

yaml
---
r: 104299
b: refs/heads/master
c: d41e26b
h: refs/heads/master
i:
  104297: 6005343
  104295: bae8f69
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9980c638a666ecd88acaf0a7ab91043d4a3f44d1
+refs/heads/master: d41e26b901111f4e540aa2c27ec7a1681c782be9

trunk/drivers/md/dm-crypt.c

@@ -1216,9 +1216,24 @@ static int crypt_message(struct dm_target *ti, unsigned argc, char **argv)
 	return -EINVAL;
 }
 
+static int crypt_merge(struct dm_target *ti, struct bvec_merge_data *bvm,
+		       struct bio_vec *biovec, int max_size)
+{
+	struct crypt_config *cc = ti->private;
+	struct request_queue *q = bdev_get_queue(cc->dev->bdev);
+
+	if (!q->merge_bvec_fn)
+		return max_size;
+
+	bvm->bi_bdev = cc->dev->bdev;
+	bvm->bi_sector = cc->start + bvm->bi_sector - ti->begin;
+
+	return min(max_size, q->merge_bvec_fn(q, bvm, biovec));
+}
+
 static struct target_type crypt_target = {
 	.name   = "crypt",
-	.version= {1, 5, 0},
+	.version= {1, 6, 0},
 	.module = THIS_MODULE,
 	.ctr    = crypt_ctr,
 	.dtr    = crypt_dtr,
@@ -1228,6 +1243,7 @@ static struct target_type crypt_target = {
 	.preresume = crypt_preresume,
 	.resume = crypt_resume,
 	.message = crypt_message,
+	.merge  = crypt_merge,
 };
 
 static int __init dm_crypt_init(void)