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authorWang ShaoBo2022-11-24 09:58:17 +0800
committerGreg Kroah-Hartman2022-12-31 13:32:15 +0100
commita999525c7b69e10c7fceaa749fe6b24b9b1ec0f0 (patch)
tree2784aca56d069fa5f885517481083ea451480dbc /drivers/block/drbd
parent6c4c5d5e4a0de5d21ead41a021ce5b59813e4273 (diff)
drbd: destroy workqueue when drbd device was freed
[ Upstream commit 8692814b77ca4228a99da8a005de0acf40af6132 ] A submitter workqueue is dynamically allocated by init_submitter() called by drbd_create_device(), we should destroy it when this device is not needed or destroyed. Fixes: 113fef9e20e0 ("drbd: prepare to queue write requests on a submit worker") Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com> Link: https://lore.kernel.org/r/20221124015817.2729789-3-bobo.shaobowang@huawei.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/block/drbd')
-rw-r--r--drivers/block/drbd/drbd_main.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 78cae4e75af1..677240232684 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2217,6 +2217,8 @@ void drbd_destroy_device(struct kref *kref)
kref_put(&peer_device->connection->kref, drbd_destroy_connection);
kfree(peer_device);
}
+ if (device->submit.wq)
+ destroy_workqueue(device->submit.wq);
kfree(device);
kref_put(&resource->kref, drbd_destroy_resource);
}
@@ -2771,7 +2773,7 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
err = add_disk(disk);
if (err)
- goto out_idr_remove_from_resource;
+ goto out_destroy_workqueue;
/* inherit the connection state */
device->state.conn = first_connection(resource)->cstate;
@@ -2785,6 +2787,8 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
drbd_debugfs_device_add(device);
return NO_ERROR;
+out_destroy_workqueue:
+ destroy_workqueue(device->submit.wq);
out_idr_remove_from_resource:
for_each_connection_safe(connection, n, resource) {
peer_device = idr_remove(&connection->peer_devices, vnr);