From: Philipp Reisner <philipp.reisner@linbit.com>
To: linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: drbd-dev@lists.linbit.com
Subject: [PATCH 08/16] drbd: Separate connection state changes from minor dev state changes #1
Date: Fri, 2 Sep 2011 12:00:40 +0200 [thread overview]
Message-ID: <1314957648-13242-9-git-send-email-philipp.reisner@linbit.com> (raw)
In-Reply-To: <1314957648-13242-1-git-send-email-philipp.reisner@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
drivers/block/drbd/drbd_receiver.c | 36 ++++++++++++++++++++++++++++--------
1 files changed, 28 insertions(+), 8 deletions(-)
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 17904f7..7e25a80 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -3334,19 +3334,39 @@ static int receive_req_state(struct drbd_conf *mdev, enum drbd_packet cmd,
mask = convert_state(mask);
val = convert_state(val);
- if (cmd == P_CONN_ST_CHG_REQ) {
- rv = conn_request_state(mdev->tconn, mask, val, CS_VERBOSE | CS_LOCAL_ONLY);
- conn_send_sr_reply(mdev->tconn, rv);
- } else {
- rv = drbd_change_state(mdev, CS_VERBOSE, mask, val);
- drbd_send_sr_reply(mdev, rv);
- }
+ rv = drbd_change_state(mdev, CS_VERBOSE, mask, val);
+ drbd_send_sr_reply(mdev, rv);
drbd_md_sync(mdev);
return true;
}
+static int receive_req_conn_state(struct drbd_tconn *tconn, enum drbd_packet cmd,
+ unsigned int data_size)
+{
+ struct p_req_state *p = &tconn->data.rbuf.req_state;
+ union drbd_state mask, val;
+ enum drbd_state_rv rv;
+
+ mask.i = be32_to_cpu(p->mask);
+ val.i = be32_to_cpu(p->val);
+
+ if (test_bit(DISCARD_CONCURRENT, &tconn->flags) &&
+ mutex_is_locked(&tconn->cstate_mutex)) {
+ conn_send_sr_reply(tconn, SS_CONCURRENT_ST_CHG);
+ return true;
+ }
+
+ mask = convert_state(mask);
+ val = convert_state(val);
+
+ rv = conn_request_state(tconn, mask, val, CS_VERBOSE | CS_LOCAL_ONLY);
+ conn_send_sr_reply(tconn, rv);
+
+ return true;
+}
+
static int receive_state(struct drbd_conf *mdev, enum drbd_packet cmd,
unsigned int data_size)
{
@@ -3894,7 +3914,7 @@ static struct data_cmd drbd_cmd_handler[] = {
[P_CSUM_RS_REQUEST] = { 1, sizeof(struct p_block_req), MDEV, { receive_DataRequest } },
[P_DELAY_PROBE] = { 0, sizeof(struct p_delay_probe93), MDEV, { receive_skip } },
[P_OUT_OF_SYNC] = { 0, sizeof(struct p_block_desc), MDEV, { receive_out_of_sync } },
- [P_CONN_ST_CHG_REQ] = { 0, sizeof(struct p_req_state), MDEV, { receive_req_state } },
+ [P_CONN_ST_CHG_REQ] = { 0, sizeof(struct p_req_state), CONN, { .conn_fn = receive_req_conn_state } },
};
/* All handler functions that expect a sub-header get that sub-heder in
--
1.7.4.1
next prev parent reply other threads:[~2011-09-02 10:03 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-02 10:00 [RFC 00/16] drbd: part 5 of adding multiple volume support to drbd Philipp Reisner
2011-09-02 10:00 ` [PATCH 01/16] drbd: process_done_ee() has to handle unconfigured devices now Philipp Reisner
2011-09-02 10:00 ` [PATCH 02/16] drbd: New minors have to intherit the connection state form their connection Philipp Reisner
2011-09-02 10:00 ` [PATCH 03/16] drbd: Allow two diskless minors to be connected Philipp Reisner
2011-09-02 10:00 ` [PATCH 04/16] drbd: Do not modify the connection state with something else that conn_request_state() Philipp Reisner
2011-09-02 10:00 ` [PATCH 05/16] drbd: Moved CONN_DRY_RUN to the per connection (tconn) flags Philipp Reisner
2011-09-02 10:00 ` [PATCH 06/16] drbd: Allow packet handler functions that take a connection Philipp Reisner
2011-09-02 10:00 ` [PATCH 07/16] drbd: Converted receive_protocol() from mdev to tconn Philipp Reisner
2011-09-02 10:00 ` Philipp Reisner [this message]
2011-09-02 10:00 ` [PATCH 09/16] drbd: Allow packet handler functions that take a connection (meta connection) Philipp Reisner
2011-09-02 10:00 ` [PATCH 10/16] drbd: Converted got_Ping() and got_PingAck() from mdev to tconn Philipp Reisner
2011-09-02 10:00 ` [PATCH 11/16] drbd: Separate connection state changes from minor dev state changes #2 Philipp Reisner
2011-09-02 10:00 ` [PATCH 12/16] drbd: fix conn_reconfig_start without conn_reconfig_done in drbd_adm_attach Philipp Reisner
2011-09-02 10:00 ` [PATCH 13/16] drbd: Allow volumes to become primary only on one side Philipp Reisner
2011-09-02 10:00 ` [PATCH 14/16] drbd: conn_khelper() for user mode callbacks for connections Philipp Reisner
2011-09-02 10:00 ` [PATCH 15/16] drbd: distribute former syncer_conf settings to disk, connection, and resource level Philipp Reisner
2011-09-02 10:00 ` [PATCH 16/16] drbd: Fixed conn_lowest_minor Philipp Reisner
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