From: Jens Axboe <jens.axboe@oracle.com>
Date: Fri, 11 Jan 2008 09:14:40 +0000 (+0100)
Subject: loop: fix bad bio_alloc() nr_iovec request
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=a24eab1ed506f3e0bcbcd3f619558935549d4ace;p=openwrt%2Fstaging%2Fblogic.git

loop: fix bad bio_alloc() nr_iovec request

Don't allocate room for an iovec when it is not needed.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 56e23042728a..b8af22e610df 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -610,7 +610,7 @@ static int loop_thread(void *data)
 static int loop_switch(struct loop_device *lo, struct file *file)
 {
 	struct switch_request w;
-	struct bio *bio = bio_alloc(GFP_KERNEL, 1);
+	struct bio *bio = bio_alloc(GFP_KERNEL, 0);
 	if (!bio)
 		return -ENOMEM;
 	init_completion(&w.wait);