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block,rcu: Convert call_rcu(disk_free_ptbl_rcu_cb) to kfree_rcu() 

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

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Lai Jiangshan 2011-03-18 11:42:58 +08:00 committed by Paul E. McKenney
parent 8497a24a43
commit 57bdfbf9ee
1 changed files with 1 additions and 9 deletions
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10
block/genhd.c
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@ -1018,14 +1018,6 @@ static const struct attribute_group *disk_attr_groups[] = {
NULL
};
static void disk_free_ptbl_rcu_cb(struct rcu_head *head)
{
struct disk_part_tbl *ptbl =
container_of(head, struct disk_part_tbl, rcu_head);
kfree(ptbl);
}
/**
* disk_replace_part_tbl - replace disk->part_tbl in RCU-safe way
* @disk: disk to replace part_tbl for
@ -1046,7 +1038,7 @@ static void disk_replace_part_tbl(struct gendisk *disk,
if (old_ptbl) {
rcu_assign_pointer(old_ptbl->last_lookup, NULL);
call_rcu(&old_ptbl->rcu_head, disk_free_ptbl_rcu_cb);
kfree_rcu(old_ptbl, rcu_head);
}
}