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| author | Sage Weil <sage@newdream.net> | 2010-05-21 23:57:25 +0200 |
|---|---|---|
| committer | Sage Weil <sage@newdream.net> | 2010-05-22 01:26:11 +0200 |
| commit | 240ed68eb567d80dd6bab739341999a5ab0ad55d (patch) | |
| tree | fabd30d0897a30fa401f85e858f8aecdedb02959 /fs/ceph/mon_client.c | |
| parent | ceph: avoid resending queued message to monitor (diff) | |
| download | linux-240ed68eb567d80dd6bab739341999a5ab0ad55d.tar.xz linux-240ed68eb567d80dd6bab739341999a5ab0ad55d.zip | |
ceph: reuse mon subscribe message instead of allocated anew
Use the same message, allocated during startup. No need to reallocate a
new one each time around (and potentially ENOMEM).
Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/mon_client.c')
| -rw-r--r-- | fs/ceph/mon_client.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/ceph/mon_client.c b/fs/ceph/mon_client.c index 12d94f24ee97..f6510a476e7e 100644 --- a/fs/ceph/mon_client.c +++ b/fs/ceph/mon_client.c @@ -188,16 +188,12 @@ static void __send_subscribe(struct ceph_mon_client *monc) monc->want_next_osdmap); if ((__sub_expired(monc) && !monc->sub_sent) || monc->want_next_osdmap == 1) { - struct ceph_msg *msg; + struct ceph_msg *msg = monc->m_subscribe; struct ceph_mon_subscribe_item *i; void *p, *end; - msg = ceph_msg_new(CEPH_MSG_MON_SUBSCRIBE, 96, GFP_NOFS); - if (!msg) - return; - p = msg->front.iov_base; - end = p + msg->front.iov_len; + end = p + msg->front_max; dout("__send_subscribe to 'mdsmap' %u+\n", (unsigned)monc->have_mdsmap); @@ -227,7 +223,8 @@ static void __send_subscribe(struct ceph_mon_client *monc) msg->front.iov_len = p - msg->front.iov_base; msg->hdr.front_len = cpu_to_le32(msg->front.iov_len); - ceph_con_send(monc->con, msg); + ceph_con_revoke(monc->con, msg); + ceph_con_send(monc->con, ceph_msg_get(msg)); monc->sub_sent = jiffies | 1; /* never 0 */ } @@ -631,7 +628,7 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl) CEPH_ENTITY_TYPE_AUTH | CEPH_ENTITY_TYPE_MON | CEPH_ENTITY_TYPE_OSD | CEPH_ENTITY_TYPE_MDS; - /* msg pools */ + /* msgs */ err = -ENOMEM; monc->m_subscribe_ack = ceph_msg_new(CEPH_MSG_MON_SUBSCRIBE_ACK, sizeof(struct ceph_mon_subscribe_ack), @@ -639,9 +636,13 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl) if (!monc->m_subscribe_ack) goto out_monmap; + monc->m_subscribe = ceph_msg_new(CEPH_MSG_MON_SUBSCRIBE, 96, GFP_NOFS); + if (!monc->m_subscribe) + goto out_subscribe_ack; + monc->m_auth_reply = ceph_msg_new(CEPH_MSG_AUTH_REPLY, 4096, GFP_NOFS); if (!monc->m_auth_reply) - goto out_subscribe_ack; + goto out_subscribe; monc->m_auth = ceph_msg_new(CEPH_MSG_AUTH, 4096, GFP_NOFS); monc->pending_auth = 0; @@ -665,6 +666,8 @@ int ceph_monc_init(struct ceph_mon_client *monc, struct ceph_client *cl) out_auth_reply: ceph_msg_put(monc->m_auth_reply); +out_subscribe: + ceph_msg_put(monc->m_subscribe); out_subscribe_ack: ceph_msg_put(monc->m_subscribe_ack); out_monmap: @@ -691,6 +694,7 @@ void ceph_monc_stop(struct ceph_mon_client *monc) ceph_msg_put(monc->m_auth); ceph_msg_put(monc->m_auth_reply); + ceph_msg_put(monc->m_subscribe); ceph_msg_put(monc->m_subscribe_ack); kfree(monc->monmap); |