drbd: perpare for genetlink parallel_ops
Because all administrative requests via genetlink have been globally
serialized via genl_lock(), we used to have one static struct
drbd_config_context "admin context".
Move this on-stack to the respective callback functions.
This will allow us to selectively drop the genl_lock()
(or use genl_family->parallel_ops) in the future.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 331e5cc..865fdb3 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2687,14 +2687,16 @@
return 0;
}
-enum drbd_ret_code drbd_create_device(struct drbd_resource *resource, unsigned int minor, int vnr)
+enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsigned int minor)
{
+ struct drbd_resource *resource = adm_ctx->resource;
struct drbd_connection *connection;
struct drbd_device *device;
struct drbd_peer_device *peer_device, *tmp_peer_device;
struct gendisk *disk;
struct request_queue *q;
int id;
+ int vnr = adm_ctx->volume;
enum drbd_ret_code err = ERR_NOMEM;
device = minor_to_device(minor);
@@ -2763,7 +2765,7 @@
if (id < 0) {
if (id == -ENOSPC) {
err = ERR_MINOR_EXISTS;
- drbd_msg_put_info("requested minor exists already");
+ drbd_msg_put_info(adm_ctx->reply_skb, "requested minor exists already");
}
goto out_no_minor_idr;
}
@@ -2773,7 +2775,7 @@
if (id < 0) {
if (id == -ENOSPC) {
err = ERR_MINOR_EXISTS;
- drbd_msg_put_info("requested minor exists already");
+ drbd_msg_put_info(adm_ctx->reply_skb, "requested minor exists already");
}
goto out_idr_remove_minor;
}
@@ -2794,7 +2796,7 @@
if (id < 0) {
if (id == -ENOSPC) {
err = ERR_INVALID_REQUEST;
- drbd_msg_put_info("requested volume exists already");
+ drbd_msg_put_info(adm_ctx->reply_skb, "requested volume exists already");
}
goto out_idr_remove_from_resource;
}
@@ -2803,7 +2805,7 @@
if (init_submitter(device)) {
err = ERR_NOMEM;
- drbd_msg_put_info("unable to create submit workqueue");
+ drbd_msg_put_info(adm_ctx->reply_skb, "unable to create submit workqueue");
goto out_idr_remove_vol;
}