From: NeilBrown <neilb@suse.de>
Date: Mon, 24 Sep 2012 06:27:20 +0000 (+1000)
Subject: md/raid5: add missing spin_lock_init.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=cb13ff69d6d61ab06285e3ef652f45ecda73e135;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

md/raid5: add missing spin_lock_init.

commit b17459c05000fdbe8d10946570a26510f86ec0f
   raid5: add a per-stripe lock

added a spin_lock to the 'stripe_head' struct.
Unfortunately there are two places where this struct is allocated
but the spin lock was only initialised in one of them.

So add the missing spin_lock_init.

Signed-off-by: NeilBrown <neilb@suse.de>
---

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 7031b865b3a0..0689173fd9f5 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1591,6 +1591,7 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 		#ifdef CONFIG_MULTICORE_RAID456
 		init_waitqueue_head(&nsh->ops.wait_for_ops);
 		#endif
+		spin_lock_init(&nsh->stripe_lock);
 
 		list_add(&nsh->lru, &newstripes);
 	}