[PATCH tip/core/rcu 80/86] md,rcu: convert call_rcu(free_conf) to kfree_rcu()

Paul E. McKenney
2011-05-01T13:27:14Z

From: Lai Jiangshan <laijs@cn.fujitsu.com>

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@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Neil Brown <neilb@suse.de>
---
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;
}

--
1.7.3.2