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drbd: Move conf_mutex from connection to resource

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Signed-off-by: Andreas Gruenbacher <agruen@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
This commit is contained in:
Andreas Gruenbacher
2011-07-07 14:19:42 +02:00
committed by Philipp Reisner
parent 3ab706fe52
commit 0500813fe0
8 changed files with 160 additions and 161 deletions
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drivers/block/drbd/drbd_nl.c
+25 -25
View File
@@ -443,9 +443,9 @@ bool conn_try_outdate_peer(struct drbd_connection *connection)
return false;
}
spin_lock_irq(&connection->req_lock);
spin_lock_irq(&connection->resource->req_lock);
connect_cnt = connection->connect_cnt;
spin_unlock_irq(&connection->req_lock);
spin_unlock_irq(&connection->resource->req_lock);
fp = highest_fencing_policy(connection);
switch (fp) {
@@ -510,7 +510,7 @@ bool conn_try_outdate_peer(struct drbd_connection *connection)
conn_request_state(connection, mask, val, CS_VERBOSE);
here, because we might were able to re-establish the connection in the
meantime. */
spin_lock_irq(&connection->req_lock);
spin_lock_irq(&connection->resource->req_lock);
if (connection->cstate < C_WF_REPORT_PARAMS && !test_bit(STATE_SENT, &connection->flags)) {
if (connection->connect_cnt != connect_cnt)
/* In case the connection was established and droped
@@ -519,7 +519,7 @@ bool conn_try_outdate_peer(struct drbd_connection *connection)
else
_conn_request_state(connection, mask, val, CS_VERBOSE);
}
spin_unlock_irq(&connection->req_lock);
spin_unlock_irq(&connection->resource->req_lock);
return conn_highest_pdsk(connection) <= D_OUTDATED;
}
@@ -654,11 +654,11 @@ drbd_set_role(struct drbd_device *device, enum drbd_role new_role, int force)
put_ldev(device);
}
} else {
mutex_lock(&first_peer_device(device)->connection->conf_update);
mutex_lock(&device->resource->conf_update);
nc = first_peer_device(device)->connection->net_conf;
if (nc)
nc->discard_my_data = 0; /* without copy; single bit op is atomic */
mutex_unlock(&first_peer_device(device)->connection->conf_update);
mutex_unlock(&device->resource->conf_update);
set_disk_ro(device->vdisk, false);
if (get_ldev(device)) {
@@ -1188,10 +1188,10 @@ static void conn_reconfig_start(struct drbd_connection *connection)
static void conn_reconfig_done(struct drbd_connection *connection)
{
bool stop_threads;
spin_lock_irq(&connection->req_lock);
spin_lock_irq(&connection->resource->req_lock);
stop_threads = conn_all_vols_unconf(connection) &&
connection->cstate == C_STANDALONE;
spin_unlock_irq(&connection->req_lock);
spin_unlock_irq(&connection->resource->req_lock);
if (stop_threads) {
/* asender is implicitly stopped by receiver
* in conn_disconnect() */
@@ -1211,10 +1211,10 @@ static void drbd_suspend_al(struct drbd_device *device)
}
drbd_al_shrink(device);
spin_lock_irq(&first_peer_device(device)->connection->req_lock);
spin_lock_irq(&device->resource->req_lock);
if (device->state.conn < C_CONNECTED)
s = !test_and_set_bit(AL_SUSPENDED, &device->flags);
spin_unlock_irq(&first_peer_device(device)->connection->req_lock);
spin_unlock_irq(&device->resource->req_lock);
lc_unlock(device->act_log);
if (s)
@@ -1285,7 +1285,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
goto fail;
}
mutex_lock(&first_peer_device(device)->connection->conf_update);
mutex_lock(&device->resource->conf_update);
old_disk_conf = device->ldev->disk_conf;
*new_disk_conf = *old_disk_conf;
if (should_set_defaults(info))
@@ -1348,7 +1348,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
rcu_assign_pointer(device->rs_plan_s, new_plan);
}
mutex_unlock(&first_peer_device(device)->connection->conf_update);
mutex_unlock(&device->resource->conf_update);
if (new_disk_conf->al_updates)
device->ldev->md.flags &= ~MDF_AL_DISABLED;
@@ -1374,7 +1374,7 @@ int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
goto success;
fail_unlock:
mutex_unlock(&first_peer_device(device)->connection->conf_update);
mutex_unlock(&device->resource->conf_update);
fail:
kfree(new_disk_conf);
kfree(new_plan);
@@ -1724,7 +1724,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
if (_drbd_bm_total_weight(device) == drbd_bm_bits(device))
drbd_suspend_al(device); /* IO is still suspended here... */
spin_lock_irq(&first_peer_device(device)->connection->req_lock);
spin_lock_irq(&device->resource->req_lock);
os = drbd_read_state(device);
ns = os;
/* If MDF_CONSISTENT is not set go into inconsistent state,
@@ -1776,7 +1776,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
}
rv = _drbd_set_state(device, ns, CS_VERBOSE, NULL);
spin_unlock_irq(&first_peer_device(device)->connection->req_lock);
spin_unlock_irq(&device->resource->req_lock);
if (rv < SS_SUCCESS)
goto force_diskless_dec;
@@ -2077,7 +2077,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
conn_reconfig_start(connection);
mutex_lock(&connection->data.mutex);
mutex_lock(&connection->conf_update);
mutex_lock(&connection->resource->conf_update);
old_net_conf = connection->net_conf;
if (!old_net_conf) {
@@ -2141,7 +2141,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
crypto_free_hash(connection->cram_hmac_tfm);
connection->cram_hmac_tfm = crypto.cram_hmac_tfm;
mutex_unlock(&connection->conf_update);
mutex_unlock(&connection->resource->conf_update);
mutex_unlock(&connection->data.mutex);
synchronize_rcu();
kfree(old_net_conf);
@@ -2152,7 +2152,7 @@ int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
goto done;
fail:
mutex_unlock(&connection->conf_update);
mutex_unlock(&connection->resource->conf_update);
mutex_unlock(&connection->data.mutex);
free_crypto(&crypto);
kfree(new_net_conf);
@@ -2243,11 +2243,11 @@ int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info)
conn_flush_workqueue(connection);
mutex_lock(&connection->conf_update);
mutex_lock(&adm_ctx.resource->conf_update);
old_net_conf = connection->net_conf;
if (old_net_conf) {
retcode = ERR_NET_CONFIGURED;
mutex_unlock(&connection->conf_update);
mutex_unlock(&adm_ctx.resource->conf_update);
goto fail;
}
rcu_assign_pointer(connection->net_conf, new_net_conf);
@@ -2263,7 +2263,7 @@ int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info)
connection->peer_addr_len = nla_len(adm_ctx.peer_addr);
memcpy(&connection->peer_addr, nla_data(adm_ctx.peer_addr), connection->peer_addr_len);
mutex_unlock(&connection->conf_update);
mutex_unlock(&adm_ctx.resource->conf_update);
rcu_read_lock();
idr_for_each_entry(&connection->peer_devices, peer_device, i) {
@@ -2486,12 +2486,12 @@ int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info)
device->ldev->known_size = drbd_get_capacity(device->ldev->backing_bdev);
if (new_disk_conf) {
mutex_lock(&first_peer_device(device)->connection->conf_update);
mutex_lock(&device->resource->conf_update);
old_disk_conf = device->ldev->disk_conf;
*new_disk_conf = *old_disk_conf;
new_disk_conf->disk_size = (sector_t)rs.resize_size;
rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);
mutex_unlock(&first_peer_device(device)->connection->conf_update);
mutex_unlock(&device->resource->conf_update);
synchronize_rcu();
kfree(old_disk_conf);
}
@@ -3248,10 +3248,10 @@ int drbd_adm_new_c_uuid(struct sk_buff *skb, struct genl_info *info)
drbd_send_uuids_skip_initial_sync(device);
_drbd_uuid_set(device, UI_BITMAP, 0);
drbd_print_uuids(device, "cleared bitmap UUID");
spin_lock_irq(&first_peer_device(device)->connection->req_lock);
spin_lock_irq(&device->resource->req_lock);
_drbd_set_state(_NS2(device, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE),
CS_VERBOSE, NULL);
spin_unlock_irq(&first_peer_device(device)->connection->req_lock);
spin_unlock_irq(&device->resource->req_lock);
}
}