From: Wang ShaoBo bobo.shaobowang@huawei.com
[ Upstream commit 6e7b854e4c1b02dba00760dfa79d8dbf6cce561e ]
This revert c2258ffc56f2 ("drbd: poison free'd device, resource and connection structs"), add memset is odd here for debugging, there are some methods to accurately show what happened, such as kdump.
Signed-off-by: Wang ShaoBo bobo.shaobowang@huawei.com Link: https://lore.kernel.org/r/20221124015817.2729789-2-bobo.shaobowang@huawei.co... Signed-off-by: Jens Axboe axboe@kernel.dk Stable-dep-of: 8692814b77ca ("drbd: destroy workqueue when drbd device was freed") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/block/drbd/drbd_main.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 8532b839a343..78cae4e75af1 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2217,7 +2217,6 @@ void drbd_destroy_device(struct kref *kref) kref_put(&peer_device->connection->kref, drbd_destroy_connection); kfree(peer_device); } - memset(device, 0xfd, sizeof(*device)); kfree(device); kref_put(&resource->kref, drbd_destroy_resource); } @@ -2309,7 +2308,6 @@ void drbd_destroy_resource(struct kref *kref) idr_destroy(&resource->devices); free_cpumask_var(resource->cpu_mask); kfree(resource->name); - memset(resource, 0xf2, sizeof(*resource)); kfree(resource); }
@@ -2650,7 +2648,6 @@ void drbd_destroy_connection(struct kref *kref) drbd_free_socket(&connection->data); kfree(connection->int_dig_in); kfree(connection->int_dig_vv); - memset(connection, 0xfc, sizeof(*connection)); kfree(connection); kref_put(&resource->kref, drbd_destroy_resource); }