[tip:core/rcu] md,rcu: Convert call_rcu(free_conf) to kfree_rcu()

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Commit-ID:  b119cbab3aecd19dbd748a9823c02d200b96b2f8
Gitweb:     http://git.kernel.org/tip/b119cbab3aecd19dbd748a9823c02d200b96b2f8
Author:     Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
AuthorDate: Fri, 18 Mar 2011 11:59:14 +0800
Committer:  Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Wed, 20 Jul 2011 11:05:29 -0700

md,rcu: Convert call_rcu(free_conf) to kfree_rcu()

The rcu callback free_conf() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(free_conf).

Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Acked-by: NeilBrown <neilb@xxxxxxx>
Reviewed-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx>
---
 drivers/md/linear.c |    8 +-------
 1 files changed, 1 insertions(+), 7 deletions(-)

diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index abfb59a..6cd2c31 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -213,12 +213,6 @@ static int linear_run (mddev_t *mddev)
 	return md_integrity_register(mddev);
 }
 
-static void free_conf(struct rcu_head *head)
-{
-	linear_conf_t *conf = container_of(head, linear_conf_t, rcu);
-	kfree(conf);
-}
-
 static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)
 {
 	/* Adding a drive to a linear array allows the array to grow.
@@ -247,7 +241,7 @@ static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)
 	md_set_array_sectors(mddev, linear_size(mddev, 0, 0));
 	set_capacity(mddev->gendisk, mddev->array_sectors);
 	revalidate_disk(mddev->gendisk);
-	call_rcu(&oldconf->rcu, free_conf);
+	kfree_rcu(oldconf, rcu);
 	return 0;
 }
 
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