From: Philipp Reisner Date: Tue, 3 May 2011 11:14:15 +0000 (+0200) Subject: drbd: Renamed the net_conf_update mutex to conf_update X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a0095508cac5c413c7119076b26f536486314ef1;p=linux-beck.git drbd: Renamed the net_conf_update mutex to conf_update Preparing to use the same mutex for disk_conf updates Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 8655fcb82028..0311dfde776b 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -832,7 +832,7 @@ struct drbd_tconn { /* is a resource from the config file */ unsigned long flags; struct net_conf *net_conf; /* content protected by rcu */ - struct mutex net_conf_update; /* mutex for ready-copy-update of net_conf */ + struct mutex conf_update; /* mutex for ready-copy-update of net_conf and disk_conf */ wait_queue_head_t ping_wait; /* Woken upon reception of a ping, and a state change */ struct res_opts res_opts; diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c index 4ae3e7a99d7c..e37244485d72 100644 --- a/drivers/block/drbd/drbd_main.c +++ b/drivers/block/drbd/drbd_main.c @@ -2474,7 +2474,7 @@ struct drbd_tconn *conn_create(const char *name) tconn->cstate = C_STANDALONE; mutex_init(&tconn->cstate_mutex); spin_lock_init(&tconn->req_lock); - mutex_init(&tconn->net_conf_update); + mutex_init(&tconn->conf_update); init_waitqueue_head(&tconn->ping_wait); idr_init(&tconn->volumes); diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 8d2c3397cea8..3bad1412be69 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -597,11 +597,11 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) put_ldev(mdev); } } else { - mutex_lock(&mdev->tconn->net_conf_update); + mutex_lock(&mdev->tconn->conf_update); nc = mdev->tconn->net_conf; if (nc) nc->want_lose = 0; /* without copy; single bit op is atomic */ - mutex_unlock(&mdev->tconn->net_conf_update); + mutex_unlock(&mdev->tconn->conf_update); set_disk_ro(mdev->vdisk, false); if (get_ldev(mdev)) { @@ -1829,7 +1829,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info) conn_reconfig_start(tconn); mutex_lock(&tconn->data.mutex); - mutex_lock(&tconn->net_conf_update); + mutex_lock(&tconn->conf_update); old_conf = tconn->net_conf; if (!old_conf) { @@ -1903,7 +1903,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info) crypto_free_hash(tconn->cram_hmac_tfm); tconn->cram_hmac_tfm = crypto.cram_hmac_tfm; - mutex_unlock(&tconn->net_conf_update); + mutex_unlock(&tconn->conf_update); mutex_unlock(&tconn->data.mutex); synchronize_rcu(); kfree(old_conf); @@ -1914,7 +1914,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info) goto done; fail: - mutex_unlock(&tconn->net_conf_update); + mutex_unlock(&tconn->conf_update); mutex_unlock(&tconn->data.mutex); free_crypto(&crypto); kfree(new_conf); @@ -2010,11 +2010,11 @@ int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info) conn_flush_workqueue(tconn); - mutex_lock(&tconn->net_conf_update); + mutex_lock(&tconn->conf_update); old_conf = tconn->net_conf; if (old_conf) { retcode = ERR_NET_CONFIGURED; - mutex_unlock(&tconn->net_conf_update); + mutex_unlock(&tconn->conf_update); goto fail; } rcu_assign_pointer(tconn->net_conf, new_conf); @@ -2027,7 +2027,7 @@ int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info) tconn->csums_tfm = crypto.csums_tfm; tconn->verify_tfm = crypto.verify_tfm; - mutex_unlock(&tconn->net_conf_update); + mutex_unlock(&tconn->conf_update); rcu_read_lock(); idr_for_each_entry(&tconn->volumes, mdev, i) { diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 956cdda93430..567d64b9906c 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3221,7 +3221,7 @@ static int receive_SyncParam(struct drbd_tconn *tconn, struct packet_info *pi) p->csums_alg[SHARED_SECRET_MAX-1] = 0; } - mutex_lock(&mdev->tconn->net_conf_update); + mutex_lock(&mdev->tconn->conf_update); old_conf = mdev->tconn->net_conf; if (strcmp(old_conf->verify_alg, p->verify_alg)) { @@ -3296,7 +3296,7 @@ static int receive_SyncParam(struct drbd_tconn *tconn, struct packet_info *pi) } rcu_assign_pointer(tconn->net_conf, new_conf); } - mutex_unlock(&mdev->tconn->net_conf_update); + mutex_unlock(&mdev->tconn->conf_update); if (new_conf) { synchronize_rcu(); kfree(old_conf); @@ -3314,7 +3314,7 @@ static int receive_SyncParam(struct drbd_tconn *tconn, struct packet_info *pi) return 0; disconnect: - mutex_unlock(&mdev->tconn->net_conf_update); + mutex_unlock(&mdev->tconn->conf_update); /* just for completeness: actually not needed, * as this is not reached if csums_tfm was ok. */ crypto_free_hash(csums_tfm); @@ -3744,9 +3744,9 @@ static int receive_state(struct drbd_tconn *tconn, struct packet_info *pi) } } - mutex_lock(&mdev->tconn->net_conf_update); + mutex_lock(&mdev->tconn->conf_update); mdev->tconn->net_conf->want_lose = 0; /* without copy; single bit op is atomic */ - mutex_unlock(&mdev->tconn->net_conf_update); + mutex_unlock(&mdev->tconn->conf_update); drbd_md_sync(mdev); /* update connected indicator, la_size, ... */ diff --git a/drivers/block/drbd/drbd_state.c b/drivers/block/drbd/drbd_state.c index 523ec0940673..332781cfb556 100644 --- a/drivers/block/drbd/drbd_state.c +++ b/drivers/block/drbd/drbd_state.c @@ -1410,11 +1410,11 @@ static int w_after_conn_state_ch(struct drbd_work *w, int unused) if (oc == C_DISCONNECTING && ns_max.conn == C_STANDALONE) { struct net_conf *old_conf; - mutex_lock(&tconn->net_conf_update); + mutex_lock(&tconn->conf_update); old_conf = tconn->net_conf; rcu_assign_pointer(tconn->net_conf, NULL); conn_free_crypto(tconn); - mutex_unlock(&tconn->net_conf_update); + mutex_unlock(&tconn->conf_update); synchronize_rcu(); kfree(old_conf);