diff mbox series

[3/6] io-cost: introduce ioc_rqos_free()

Message ID 20210923134631.105719-4-yukuai3@huawei.com (mailing list archive)
State New, archived
Headers show
Series fix uaf in rq_qos_done_io() | expand

Commit Message

Yu Kuai Sept. 23, 2021, 1:46 p.m. UTC 
Prepare to split 'kfree(ioc)' from ioc_rqos_exit(), no functional changes.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
---
 block/blk-iocost.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index b3880e4ba22a..b4a6c1f70eb0 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -2813,6 +2813,13 @@  static void ioc_rqos_exit(struct rq_qos *rqos)
 	kfree(ioc);
 }
 
+static void ioc_rqos_free(struct rq_qos *rqos)
+{
+	struct ioc *ioc = rqos_to_ioc(rqos);
+
+	kfree(ioc);
+}
+
 static struct rq_qos_ops ioc_rqos_ops = {
 	.throttle = ioc_rqos_throttle,
 	.merge = ioc_rqos_merge,
@@ -2820,6 +2827,7 @@  static struct rq_qos_ops ioc_rqos_ops = {
 	.done = ioc_rqos_done,
 	.queue_depth_changed = ioc_rqos_queue_depth_changed,
 	.exit = ioc_rqos_exit,
+	.free = ioc_rqos_free,
 };
 
 static int blk_iocost_init(struct request_queue *q)