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 <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 8655fcb..0311dfd 100644 (file)
--- 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 4ae3e7a..e372444 100644 (file)
--- 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 8d2c339..3bad141 100644 (file)
--- 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 956cdda..567d64b 100644 (file)
--- 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 523ec09..332781c 100644 (file)
--- 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);