diff options
| author |   Lars Ellenberg <lars.ellenberg@linbit.com> | 2010-11-24 10:11:14 +0100 |
|---|---|---|
| committer |   Philipp Reisner <philipp.reisner@linbit.com> | 2011-03-10 11:35:15 +0100 |
| commit | 42ff269d1022a86be4f526cf674998c47b7ab856 (patch) | |
| tree | d392b05fd0c626093b552232b26b60d21afa4d26 /drivers | |
| parent | drbd: use kzalloc and memset(,0,) to start with clean buffers in drbd_nl (diff) | |
| download | linux-dev-42ff269d1022a86be4f526cf674998c47b7ab856.tar.xz linux-dev-42ff269d1022a86be4f526cf674998c47b7ab856.zip | |
drbd: add packet_type 27 (return_code_only) to netlink api
In case we ever should add an other packet type,
we must not reuse 27, as that currently used for
"empty" return code only replies.
Document it as such.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 80a389d24cdd..6a6dde6c51c6 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2195,7 +2195,8 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms goto fail; } - if (nlp->packet_type >= P_nl_after_last_packet) { + if (nlp->packet_type >= P_nl_after_last_packet || + nlp->packet_type == P_return_code_only) { retcode = ERR_PACKET_NR; goto fail; } @@ -2219,7 +2220,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms reply = (struct drbd_nl_cfg_reply *) cn_reply->data; reply->packet_type = - cm->reply_body_size ? nlp->packet_type : P_nl_after_last_packet; + cm->reply_body_size ? nlp->packet_type : P_return_code_only; reply->minor = nlp->drbd_minor; reply->ret_code = NO_ERROR; /* Might by modified by cm->function. */ /* reply->tag_list; might be modified by cm->function. */ @@ -2525,6 +2526,7 @@ void drbd_nl_send_reply(struct cn_msg *req, int ret_code) cn_reply->len = sizeof(struct drbd_nl_cfg_reply); cn_reply->flags = 0; + reply->packet_type = P_return_code_only; reply->minor = ((struct drbd_nl_cfg_req *)req->data)->drbd_minor; reply->ret_code = ret_code; |