#include <linux/blkpg.h>
#include <linux/cpumask.h>
#include "drbd_int.h"
+#include "drbd_protocol.h"
#include "drbd_req.h"
#include "drbd_wrappers.h"
#include <asm/unaligned.h>
// int drbd_adm_create_resource(struct sk_buff *skb, struct genl_info *info);
// int drbd_adm_delete_resource(struct sk_buff *skb, struct genl_info *info);
-int drbd_adm_add_minor(struct sk_buff *skb, struct genl_info *info);
-int drbd_adm_delete_minor(struct sk_buff *skb, struct genl_info *info);
+int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info);
+int drbd_adm_del_minor(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_new_resource(struct sk_buff *skb, struct genl_info *info);
int drbd_adm_del_resource(struct sk_buff *skb, struct genl_info *info);
/* pointer into reply buffer */
struct drbd_genlmsghdr *reply_dh;
/* resolved from attributes, if possible */
- struct drbd_conf *mdev;
- struct drbd_tconn *tconn;
+ struct drbd_device *device;
+ struct drbd_resource *resource;
+ struct drbd_connection *connection;
} adm_ctx;
static void drbd_adm_send_reply(struct sk_buff *skb, struct genl_info *info)
adm_ctx.my_addr = nested_attr_tb[__nla_type(T_ctx_my_addr)];
adm_ctx.peer_addr = nested_attr_tb[__nla_type(T_ctx_peer_addr)];
if ((adm_ctx.my_addr &&
- nla_len(adm_ctx.my_addr) > sizeof(adm_ctx.tconn->my_addr)) ||
+ nla_len(adm_ctx.my_addr) > sizeof(adm_ctx.connection->my_addr)) ||
(adm_ctx.peer_addr &&
- nla_len(adm_ctx.peer_addr) > sizeof(adm_ctx.tconn->peer_addr))) {
+ nla_len(adm_ctx.peer_addr) > sizeof(adm_ctx.connection->peer_addr))) {
err = -EINVAL;
goto fail;
}
}
adm_ctx.minor = d_in->minor;
- adm_ctx.mdev = minor_to_mdev(d_in->minor);
- adm_ctx.tconn = conn_get_by_name(adm_ctx.resource_name);
+ adm_ctx.device = minor_to_device(d_in->minor);
+ if (adm_ctx.resource_name) {
+ adm_ctx.resource = drbd_find_resource(adm_ctx.resource_name);
+ if (adm_ctx.resource) {
+ adm_ctx.connection = first_connection(adm_ctx.resource);
+ kref_get(&adm_ctx.connection->kref);
+ }
+ }
- if (!adm_ctx.mdev && (flags & DRBD_ADM_NEED_MINOR)) {
+ if (!adm_ctx.device && (flags & DRBD_ADM_NEED_MINOR)) {
drbd_msg_put_info("unknown minor");
return ERR_MINOR_INVALID;
}
- if (!adm_ctx.tconn && (flags & DRBD_ADM_NEED_RESOURCE)) {
+ if (!adm_ctx.resource && (flags & DRBD_ADM_NEED_RESOURCE)) {
drbd_msg_put_info("unknown resource");
+ if (adm_ctx.resource_name)
+ return ERR_RES_NOT_KNOWN;
return ERR_INVALID_REQUEST;
}
if (flags & DRBD_ADM_NEED_CONNECTION) {
- if (adm_ctx.tconn && !(flags & DRBD_ADM_NEED_RESOURCE)) {
+ if (adm_ctx.connection && !(flags & DRBD_ADM_NEED_RESOURCE)) {
drbd_msg_put_info("no resource name expected");
return ERR_INVALID_REQUEST;
}
- if (adm_ctx.mdev) {
+ if (adm_ctx.device) {
drbd_msg_put_info("no minor number expected");
return ERR_INVALID_REQUEST;
}
if (adm_ctx.my_addr && adm_ctx.peer_addr)
- adm_ctx.tconn = conn_get_by_addrs(nla_data(adm_ctx.my_addr),
+ adm_ctx.connection = conn_get_by_addrs(nla_data(adm_ctx.my_addr),
nla_len(adm_ctx.my_addr),
nla_data(adm_ctx.peer_addr),
nla_len(adm_ctx.peer_addr));
- if (!adm_ctx.tconn) {
+ if (!adm_ctx.connection) {
drbd_msg_put_info("unknown connection");
return ERR_INVALID_REQUEST;
}
}
/* some more paranoia, if the request was over-determined */
- if (adm_ctx.mdev && adm_ctx.tconn &&
- adm_ctx.mdev->tconn != adm_ctx.tconn) {
- pr_warning("request: minor=%u, resource=%s; but that minor belongs to connection %s\n",
- adm_ctx.minor, adm_ctx.resource_name,
- adm_ctx.mdev->tconn->name);
+ if (adm_ctx.device && adm_ctx.resource &&
+ adm_ctx.device->resource != adm_ctx.resource) {
+ pr_warning("request: minor=%u, resource=%s; but that minor belongs to resource %s\n",
+ adm_ctx.minor, adm_ctx.resource->name,
+ adm_ctx.device->resource->name);
drbd_msg_put_info("minor exists in different resource");
return ERR_INVALID_REQUEST;
}
- if (adm_ctx.mdev &&
+ if (adm_ctx.device &&
adm_ctx.volume != VOLUME_UNSPECIFIED &&
- adm_ctx.volume != adm_ctx.mdev->vnr) {
+ adm_ctx.volume != adm_ctx.device->vnr) {
pr_warning("request: minor=%u, volume=%u; but that minor is volume %u in %s\n",
adm_ctx.minor, adm_ctx.volume,
- adm_ctx.mdev->vnr, adm_ctx.mdev->tconn->name);
+ adm_ctx.device->vnr,
+ adm_ctx.device->resource->name);
drbd_msg_put_info("minor exists as different volume");
return ERR_INVALID_REQUEST;
}
static int drbd_adm_finish(struct genl_info *info, int retcode)
{
- if (adm_ctx.tconn) {
- kref_put(&adm_ctx.tconn->kref, &conn_destroy);
- adm_ctx.tconn = NULL;
+ if (adm_ctx.connection) {
+ kref_put(&adm_ctx.connection->kref, drbd_destroy_connection);
+ adm_ctx.connection = NULL;
+ }
+ if (adm_ctx.resource) {
+ kref_put(&adm_ctx.resource->kref, drbd_destroy_resource);
+ adm_ctx.resource = NULL;
}
if (!adm_ctx.reply_skb)
return 0;
}
-static void setup_khelper_env(struct drbd_tconn *tconn, char **envp)
+static void setup_khelper_env(struct drbd_connection *connection, char **envp)
{
char *afs;
/* FIXME: A future version will not allow this case. */
- if (tconn->my_addr_len == 0 || tconn->peer_addr_len == 0)
+ if (connection->my_addr_len == 0 || connection->peer_addr_len == 0)
return;
- switch (((struct sockaddr *)&tconn->peer_addr)->sa_family) {
+ switch (((struct sockaddr *)&connection->peer_addr)->sa_family) {
case AF_INET6:
afs = "ipv6";
snprintf(envp[4], 60, "DRBD_PEER_ADDRESS=%pI6",
- &((struct sockaddr_in6 *)&tconn->peer_addr)->sin6_addr);
+ &((struct sockaddr_in6 *)&connection->peer_addr)->sin6_addr);
break;
case AF_INET:
afs = "ipv4";
snprintf(envp[4], 60, "DRBD_PEER_ADDRESS=%pI4",
- &((struct sockaddr_in *)&tconn->peer_addr)->sin_addr);
+ &((struct sockaddr_in *)&connection->peer_addr)->sin_addr);
break;
default:
afs = "ssocks";
snprintf(envp[4], 60, "DRBD_PEER_ADDRESS=%pI4",
- &((struct sockaddr_in *)&tconn->peer_addr)->sin_addr);
+ &((struct sockaddr_in *)&connection->peer_addr)->sin_addr);
}
snprintf(envp[3], 20, "DRBD_PEER_AF=%s", afs);
}
-int drbd_khelper(struct drbd_conf *mdev, char *cmd)
+int drbd_khelper(struct drbd_device *device, char *cmd)
{
char *envp[] = { "HOME=/",
"TERM=linux",
NULL };
char mb[12];
char *argv[] = {usermode_helper, cmd, mb, NULL };
- struct drbd_tconn *tconn = mdev->tconn;
+ struct drbd_connection *connection = first_peer_device(device)->connection;
struct sib_info sib;
int ret;
- if (current == tconn->worker.task)
- set_bit(CALLBACK_PENDING, &tconn->flags);
+ if (current == connection->worker.task)
+ set_bit(CALLBACK_PENDING, &connection->flags);
- snprintf(mb, 12, "minor-%d", mdev_to_minor(mdev));
- setup_khelper_env(tconn, envp);
+ snprintf(mb, 12, "minor-%d", device_to_minor(device));
+ setup_khelper_env(connection, envp);
/* The helper may take some time.
* write out any unsynced meta data changes now */
- drbd_md_sync(mdev);
+ drbd_md_sync(device);
- dev_info(DEV, "helper command: %s %s %s\n", usermode_helper, cmd, mb);
+ drbd_info(device, "helper command: %s %s %s\n", usermode_helper, cmd, mb);
sib.sib_reason = SIB_HELPER_PRE;
sib.helper_name = cmd;
- drbd_bcast_event(mdev, &sib);
+ drbd_bcast_event(device, &sib);
ret = call_usermodehelper(usermode_helper, argv, envp, UMH_WAIT_PROC);
if (ret)
- dev_warn(DEV, "helper command: %s %s %s exit code %u (0x%x)\n",
+ drbd_warn(device, "helper command: %s %s %s exit code %u (0x%x)\n",
usermode_helper, cmd, mb,
(ret >> 8) & 0xff, ret);
else
- dev_info(DEV, "helper command: %s %s %s exit code %u (0x%x)\n",
+ drbd_info(device, "helper command: %s %s %s exit code %u (0x%x)\n",
usermode_helper, cmd, mb,
(ret >> 8) & 0xff, ret);
sib.sib_reason = SIB_HELPER_POST;
sib.helper_exit_code = ret;
- drbd_bcast_event(mdev, &sib);
+ drbd_bcast_event(device, &sib);
- if (current == tconn->worker.task)
- clear_bit(CALLBACK_PENDING, &tconn->flags);
+ if (current == connection->worker.task)
+ clear_bit(CALLBACK_PENDING, &connection->flags);
if (ret < 0) /* Ignore any ERRNOs we got. */
ret = 0;
return ret;
}
-int conn_khelper(struct drbd_tconn *tconn, char *cmd)
+static int conn_khelper(struct drbd_connection *connection, char *cmd)
{
char *envp[] = { "HOME=/",
"TERM=linux",
(char[20]) { }, /* address family */
(char[60]) { }, /* address */
NULL };
- char *argv[] = {usermode_helper, cmd, tconn->name, NULL };
+ char *resource_name = connection->resource->name;
+ char *argv[] = {usermode_helper, cmd, resource_name, NULL };
int ret;
- setup_khelper_env(tconn, envp);
- conn_md_sync(tconn);
+ setup_khelper_env(connection, envp);
+ conn_md_sync(connection);
- conn_info(tconn, "helper command: %s %s %s\n", usermode_helper, cmd, tconn->name);
+ drbd_info(connection, "helper command: %s %s %s\n", usermode_helper, cmd, resource_name);
/* TODO: conn_bcast_event() ?? */
ret = call_usermodehelper(usermode_helper, argv, envp, UMH_WAIT_PROC);
if (ret)
- conn_warn(tconn, "helper command: %s %s %s exit code %u (0x%x)\n",
- usermode_helper, cmd, tconn->name,
+ drbd_warn(connection, "helper command: %s %s %s exit code %u (0x%x)\n",
+ usermode_helper, cmd, resource_name,
(ret >> 8) & 0xff, ret);
else
- conn_info(tconn, "helper command: %s %s %s exit code %u (0x%x)\n",
- usermode_helper, cmd, tconn->name,
+ drbd_info(connection, "helper command: %s %s %s exit code %u (0x%x)\n",
+ usermode_helper, cmd, resource_name,
(ret >> 8) & 0xff, ret);
/* TODO: conn_bcast_event() ?? */
return ret;
}
-static enum drbd_fencing_p highest_fencing_policy(struct drbd_tconn *tconn)
+static enum drbd_fencing_p highest_fencing_policy(struct drbd_connection *connection)
{
enum drbd_fencing_p fp = FP_NOT_AVAIL;
- struct drbd_conf *mdev;
+ struct drbd_peer_device *peer_device;
int vnr;
rcu_read_lock();
- idr_for_each_entry(&tconn->volumes, mdev, vnr) {
- if (get_ldev_if_state(mdev, D_CONSISTENT)) {
- fp = max_t(enum drbd_fencing_p, fp,
- rcu_dereference(mdev->ldev->disk_conf)->fencing);
- put_ldev(mdev);
+ idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {
+ struct drbd_device *device = peer_device->device;
+ if (get_ldev_if_state(device, D_CONSISTENT)) {
+ struct disk_conf *disk_conf =
+ rcu_dereference(peer_device->device->ldev->disk_conf);
+ fp = max_t(enum drbd_fencing_p, fp, disk_conf->fencing);
+ put_ldev(device);
}
}
rcu_read_unlock();
return fp;
}
-bool conn_try_outdate_peer(struct drbd_tconn *tconn)
+bool conn_try_outdate_peer(struct drbd_connection *connection)
{
unsigned int connect_cnt;
union drbd_state mask = { };
char *ex_to_string;
int r;
- if (tconn->cstate >= C_WF_REPORT_PARAMS) {
- conn_err(tconn, "Expected cstate < C_WF_REPORT_PARAMS\n");
+ if (connection->cstate >= C_WF_REPORT_PARAMS) {
+ drbd_err(connection, "Expected cstate < C_WF_REPORT_PARAMS\n");
return false;
}
- spin_lock_irq(&tconn->req_lock);
- connect_cnt = tconn->connect_cnt;
- spin_unlock_irq(&tconn->req_lock);
+ spin_lock_irq(&connection->req_lock);
+ connect_cnt = connection->connect_cnt;
+ spin_unlock_irq(&connection->req_lock);
- fp = highest_fencing_policy(tconn);
+ fp = highest_fencing_policy(connection);
switch (fp) {
case FP_NOT_AVAIL:
- conn_warn(tconn, "Not fencing peer, I'm not even Consistent myself.\n");
+ drbd_warn(connection, "Not fencing peer, I'm not even Consistent myself.\n");
goto out;
case FP_DONT_CARE:
return true;
default: ;
}
- r = conn_khelper(tconn, "fence-peer");
+ r = conn_khelper(connection, "fence-peer");
switch ((r>>8) & 0xff) {
case 3: /* peer is inconsistent */
val.pdsk = D_OUTDATED;
break;
case 5: /* peer was down */
- if (conn_highest_disk(tconn) == D_UP_TO_DATE) {
+ if (conn_highest_disk(connection) == D_UP_TO_DATE) {
/* we will(have) create(d) a new UUID anyways... */
ex_to_string = "peer is unreachable, assumed to be dead";
mask.pdsk = D_MASK;
* This is useful when an unconnected R_SECONDARY is asked to
* become R_PRIMARY, but finds the other peer being active. */
ex_to_string = "peer is active";
- conn_warn(tconn, "Peer is primary, outdating myself.\n");
+ drbd_warn(connection, "Peer is primary, outdating myself.\n");
mask.disk = D_MASK;
val.disk = D_OUTDATED;
break;
case 7:
if (fp != FP_STONITH)
- conn_err(tconn, "fence-peer() = 7 && fencing != Stonith !!!\n");
+ drbd_err(connection, "fence-peer() = 7 && fencing != Stonith !!!\n");
ex_to_string = "peer was stonithed";
mask.pdsk = D_MASK;
val.pdsk = D_OUTDATED;
break;
default:
/* The script is broken ... */
- conn_err(tconn, "fence-peer helper broken, returned %d\n", (r>>8)&0xff);
+ drbd_err(connection, "fence-peer helper broken, returned %d\n", (r>>8)&0xff);
return false; /* Eventually leave IO frozen */
}
- conn_info(tconn, "fence-peer helper returned %d (%s)\n",
+ drbd_info(connection, "fence-peer helper returned %d (%s)\n",
(r>>8) & 0xff, ex_to_string);
out:
/* Not using
- conn_request_state(tconn, mask, val, CS_VERBOSE);
+ 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(&tconn->req_lock);
- if (tconn->cstate < C_WF_REPORT_PARAMS && !test_bit(STATE_SENT, &tconn->flags)) {
- if (tconn->connect_cnt != connect_cnt)
+ spin_lock_irq(&connection->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
while the fence-peer handler was running, ignore it */
- conn_info(tconn, "Ignoring fence-peer exit code\n");
+ drbd_info(connection, "Ignoring fence-peer exit code\n");
else
- _conn_request_state(tconn, mask, val, CS_VERBOSE);
+ _conn_request_state(connection, mask, val, CS_VERBOSE);
}
- spin_unlock_irq(&tconn->req_lock);
+ spin_unlock_irq(&connection->req_lock);
- return conn_highest_pdsk(tconn) <= D_OUTDATED;
+ return conn_highest_pdsk(connection) <= D_OUTDATED;
}
static int _try_outdate_peer_async(void *data)
{
- struct drbd_tconn *tconn = (struct drbd_tconn *)data;
+ struct drbd_connection *connection = (struct drbd_connection *)data;
- conn_try_outdate_peer(tconn);
+ conn_try_outdate_peer(connection);
- kref_put(&tconn->kref, &conn_destroy);
+ kref_put(&connection->kref, drbd_destroy_connection);
return 0;
}
-void conn_try_outdate_peer_async(struct drbd_tconn *tconn)
+void conn_try_outdate_peer_async(struct drbd_connection *connection)
{
struct task_struct *opa;
- kref_get(&tconn->kref);
- opa = kthread_run(_try_outdate_peer_async, tconn, "drbd_async_h");
+ kref_get(&connection->kref);
+ opa = kthread_run(_try_outdate_peer_async, connection, "drbd_async_h");
if (IS_ERR(opa)) {
- conn_err(tconn, "out of mem, failed to invoke fence-peer helper\n");
- kref_put(&tconn->kref, &conn_destroy);
+ drbd_err(connection, "out of mem, failed to invoke fence-peer helper\n");
+ kref_put(&connection->kref, drbd_destroy_connection);
}
}
enum drbd_state_rv
-drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force)
+drbd_set_role(struct drbd_device *device, enum drbd_role new_role, int force)
{
const int max_tries = 4;
enum drbd_state_rv rv = SS_UNKNOWN_ERROR;
union drbd_state mask, val;
if (new_role == R_PRIMARY)
- request_ping(mdev->tconn); /* Detect a dead peer ASAP */
+ request_ping(first_peer_device(device)->connection); /* Detect a dead peer ASAP */
- mutex_lock(mdev->state_mutex);
+ mutex_lock(device->state_mutex);
mask.i = 0; mask.role = R_MASK;
val.i = 0; val.role = new_role;
while (try++ < max_tries) {
- rv = _drbd_request_state(mdev, mask, val, CS_WAIT_COMPLETE);
+ rv = _drbd_request_state(device, mask, val, CS_WAIT_COMPLETE);
/* in case we first succeeded to outdate,
* but now suddenly could establish a connection */
}
if (rv == SS_NO_UP_TO_DATE_DISK && force &&
- (mdev->state.disk < D_UP_TO_DATE &&
- mdev->state.disk >= D_INCONSISTENT)) {
+ (device->state.disk < D_UP_TO_DATE &&
+ device->state.disk >= D_INCONSISTENT)) {
mask.disk = D_MASK;
val.disk = D_UP_TO_DATE;
forced = 1;
}
if (rv == SS_NO_UP_TO_DATE_DISK &&
- mdev->state.disk == D_CONSISTENT && mask.pdsk == 0) {
- D_ASSERT(mdev->state.pdsk == D_UNKNOWN);
+ device->state.disk == D_CONSISTENT && mask.pdsk == 0) {
+ D_ASSERT(device, device->state.pdsk == D_UNKNOWN);
- if (conn_try_outdate_peer(mdev->tconn)) {
+ if (conn_try_outdate_peer(first_peer_device(device)->connection)) {
val.disk = D_UP_TO_DATE;
mask.disk = D_MASK;
}
if (rv == SS_NOTHING_TO_DO)
goto out;
if (rv == SS_PRIMARY_NOP && mask.pdsk == 0) {
- if (!conn_try_outdate_peer(mdev->tconn) && force) {
- dev_warn(DEV, "Forced into split brain situation!\n");
+ if (!conn_try_outdate_peer(first_peer_device(device)->connection) && force) {
+ drbd_warn(device, "Forced into split brain situation!\n");
mask.pdsk = D_MASK;
val.pdsk = D_OUTDATED;
retry at most once more in this case. */
int timeo;
rcu_read_lock();
- nc = rcu_dereference(mdev->tconn->net_conf);
+ nc = rcu_dereference(first_peer_device(device)->connection->net_conf);
timeo = nc ? (nc->ping_timeo + 1) * HZ / 10 : 1;
rcu_read_unlock();
schedule_timeout_interruptible(timeo);
continue;
}
if (rv < SS_SUCCESS) {
- rv = _drbd_request_state(mdev, mask, val,
+ rv = _drbd_request_state(device, mask, val,
CS_VERBOSE + CS_WAIT_COMPLETE);
if (rv < SS_SUCCESS)
goto out;
goto out;
if (forced)
- dev_warn(DEV, "Forced to consider local data as UpToDate!\n");
+ drbd_warn(device, "Forced to consider local data as UpToDate!\n");
/* Wait until nothing is on the fly :) */
- wait_event(mdev->misc_wait, atomic_read(&mdev->ap_pending_cnt) == 0);
+ wait_event(device->misc_wait, atomic_read(&device->ap_pending_cnt) == 0);
/* FIXME also wait for all pending P_BARRIER_ACK? */
if (new_role == R_SECONDARY) {
- set_disk_ro(mdev->vdisk, true);
- if (get_ldev(mdev)) {
- mdev->ldev->md.uuid[UI_CURRENT] &= ~(u64)1;
- put_ldev(mdev);
+ set_disk_ro(device->vdisk, true);
+ if (get_ldev(device)) {
+ device->ldev->md.uuid[UI_CURRENT] &= ~(u64)1;
+ put_ldev(device);
}
} else {
- mutex_lock(&mdev->tconn->conf_update);
- nc = mdev->tconn->net_conf;
+ mutex_lock(&first_peer_device(device)->connection->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(&mdev->tconn->conf_update);
+ mutex_unlock(&first_peer_device(device)->connection->conf_update);
- set_disk_ro(mdev->vdisk, false);
- if (get_ldev(mdev)) {
- if (((mdev->state.conn < C_CONNECTED ||
- mdev->state.pdsk <= D_FAILED)
- && mdev->ldev->md.uuid[UI_BITMAP] == 0) || forced)
- drbd_uuid_new_current(mdev);
+ set_disk_ro(device->vdisk, false);
+ if (get_ldev(device)) {
+ if (((device->state.conn < C_CONNECTED ||
+ device->state.pdsk <= D_FAILED)
+ && device->ldev->md.uuid[UI_BITMAP] == 0) || forced)
+ drbd_uuid_new_current(device);
- mdev->ldev->md.uuid[UI_CURRENT] |= (u64)1;
- put_ldev(mdev);
+ device->ldev->md.uuid[UI_CURRENT] |= (u64)1;
+ put_ldev(device);
}
}
/* writeout of activity log covered areas of the bitmap
* to stable storage done in after state change already */
- if (mdev->state.conn >= C_WF_REPORT_PARAMS) {
+ if (device->state.conn >= C_WF_REPORT_PARAMS) {
/* if this was forced, we should consider sync */
if (forced)
- drbd_send_uuids(mdev);
- drbd_send_current_state(mdev);
+ drbd_send_uuids(device);
+ drbd_send_current_state(device);
}
- drbd_md_sync(mdev);
+ drbd_md_sync(device);
- kobject_uevent(&disk_to_dev(mdev->vdisk)->kobj, KOBJ_CHANGE);
+ kobject_uevent(&disk_to_dev(device->vdisk)->kobj, KOBJ_CHANGE);
out:
- mutex_unlock(mdev->state_mutex);
+ mutex_unlock(device->state_mutex);
return rv;
}
}
if (info->genlhdr->cmd == DRBD_ADM_PRIMARY)
- retcode = drbd_set_role(adm_ctx.mdev, R_PRIMARY, parms.assume_uptodate);
+ retcode = drbd_set_role(adm_ctx.device, R_PRIMARY, parms.assume_uptodate);
else
- retcode = drbd_set_role(adm_ctx.mdev, R_SECONDARY, 0);
+ retcode = drbd_set_role(adm_ctx.device, R_SECONDARY, 0);
out:
drbd_adm_finish(info, retcode);
return 0;
* Activity log size used to be fixed 32kB,
* but is about to become configurable.
*/
-static void drbd_md_set_sector_offsets(struct drbd_conf *mdev,
+static void drbd_md_set_sector_offsets(struct drbd_device *device,
struct drbd_backing_dev *bdev)
{
sector_t md_size_sect = 0;
* drbd_adm_suspend_io/drbd_adm_resume_io,
* which are (sub) state changes triggered by admin (drbdsetup),
* and can be long lived.
- * This changes an mdev->flag, is triggered by drbd internals,
+ * This changes an device->flag, is triggered by drbd internals,
* and should be short-lived. */
-void drbd_suspend_io(struct drbd_conf *mdev)
+void drbd_suspend_io(struct drbd_device *device)
{
- set_bit(SUSPEND_IO, &mdev->flags);
- if (drbd_suspended(mdev))
+ set_bit(SUSPEND_IO, &device->flags);
+ if (drbd_suspended(device))
return;
- wait_event(mdev->misc_wait, !atomic_read(&mdev->ap_bio_cnt));
+ wait_event(device->misc_wait, !atomic_read(&device->ap_bio_cnt));
}
-void drbd_resume_io(struct drbd_conf *mdev)
+void drbd_resume_io(struct drbd_device *device)
{
- clear_bit(SUSPEND_IO, &mdev->flags);
- wake_up(&mdev->misc_wait);
+ clear_bit(SUSPEND_IO, &device->flags);
+ wake_up(&device->misc_wait);
}
/**
* drbd_determine_dev_size() - Sets the right device size obeying all constraints
- * @mdev: DRBD device.
+ * @device: DRBD device.
*
* Returns 0 on success, negative return values indicate errors.
* You should call drbd_md_sync() after calling this function.
*/
enum determine_dev_size
-drbd_determine_dev_size(struct drbd_conf *mdev, enum dds_flags flags, struct resize_parms *rs) __must_hold(local)
+drbd_determine_dev_size(struct drbd_device *device, enum dds_flags flags, struct resize_parms *rs) __must_hold(local)
{
sector_t prev_first_sect, prev_size; /* previous meta location */
sector_t la_size_sect, u_size;
- struct drbd_md *md = &mdev->ldev->md;
+ struct drbd_md *md = &device->ldev->md;
u32 prev_al_stripe_size_4k;
u32 prev_al_stripes;
sector_t size;
* Suspend IO right here.
* still lock the act_log to not trigger ASSERTs there.
*/
- drbd_suspend_io(mdev);
- buffer = drbd_md_get_buffer(mdev); /* Lock meta-data IO */
+ drbd_suspend_io(device);
+ buffer = drbd_md_get_buffer(device); /* Lock meta-data IO */
if (!buffer) {
- drbd_resume_io(mdev);
+ drbd_resume_io(device);
return DS_ERROR;
}
/* no wait necessary anymore, actually we could assert that */
- wait_event(mdev->al_wait, lc_try_lock(mdev->act_log));
+ wait_event(device->al_wait, lc_try_lock(device->act_log));
- prev_first_sect = drbd_md_first_sector(mdev->ldev);
- prev_size = mdev->ldev->md.md_size_sect;
- la_size_sect = mdev->ldev->md.la_size_sect;
+ prev_first_sect = drbd_md_first_sector(device->ldev);
+ prev_size = device->ldev->md.md_size_sect;
+ la_size_sect = device->ldev->md.la_size_sect;
if (rs) {
/* rs is non NULL if we should change the AL layout only */
md->al_size_4k = (u64)rs->al_stripes * rs->al_stripe_size / 4;
}
- drbd_md_set_sector_offsets(mdev, mdev->ldev);
+ drbd_md_set_sector_offsets(device, device->ldev);
rcu_read_lock();
- u_size = rcu_dereference(mdev->ldev->disk_conf)->disk_size;
+ u_size = rcu_dereference(device->ldev->disk_conf)->disk_size;
rcu_read_unlock();
- size = drbd_new_dev_size(mdev, mdev->ldev, u_size, flags & DDSF_FORCED);
+ size = drbd_new_dev_size(device, device->ldev, u_size, flags & DDSF_FORCED);
if (size < la_size_sect) {
if (rs && u_size == 0) {
/* Remove "rs &&" later. This check should always be active, but
right now the receiver expects the permissive behavior */
- dev_warn(DEV, "Implicit shrink not allowed. "
+ drbd_warn(device, "Implicit shrink not allowed. "
"Use --size=%llus for explicit shrink.\n",
(unsigned long long)size);
rv = DS_ERROR_SHRINK;
goto err_out;
}
- if (drbd_get_capacity(mdev->this_bdev) != size ||
- drbd_bm_capacity(mdev) != size) {
+ if (drbd_get_capacity(device->this_bdev) != size ||
+ drbd_bm_capacity(device) != size) {
int err;
- err = drbd_bm_resize(mdev, size, !(flags & DDSF_NO_RESYNC));
+ err = drbd_bm_resize(device, size, !(flags & DDSF_NO_RESYNC));
if (unlikely(err)) {
/* currently there is only one error: ENOMEM! */
- size = drbd_bm_capacity(mdev)>>1;
+ size = drbd_bm_capacity(device)>>1;
if (size == 0) {
- dev_err(DEV, "OUT OF MEMORY! "
+ drbd_err(device, "OUT OF MEMORY! "
"Could not allocate bitmap!\n");
} else {
- dev_err(DEV, "BM resizing failed. "
+ drbd_err(device, "BM resizing failed. "
"Leaving size unchanged at size = %lu KB\n",
(unsigned long)size);
}
rv = DS_ERROR;
}
/* racy, see comments above. */
- drbd_set_my_capacity(mdev, size);
- mdev->ldev->md.la_size_sect = size;
- dev_info(DEV, "size = %s (%llu KB)\n", ppsize(ppb, size>>1),
+ drbd_set_my_capacity(device, size);
+ device->ldev->md.la_size_sect = size;
+ drbd_info(device, "size = %s (%llu KB)\n", ppsize(ppb, size>>1),
(unsigned long long)size>>1);
}
if (rv <= DS_ERROR)
goto err_out;
- la_size_changed = (la_size_sect != mdev->ldev->md.la_size_sect);
+ la_size_changed = (la_size_sect != device->ldev->md.la_size_sect);
- md_moved = prev_first_sect != drbd_md_first_sector(mdev->ldev)
- || prev_size != mdev->ldev->md.md_size_sect;
+ md_moved = prev_first_sect != drbd_md_first_sector(device->ldev)
+ || prev_size != device->ldev->md.md_size_sect;
if (la_size_changed || md_moved || rs) {
u32 prev_flags;
- drbd_al_shrink(mdev); /* All extents inactive. */
+ drbd_al_shrink(device); /* All extents inactive. */
prev_flags = md->flags;
md->flags &= ~MDF_PRIMARY_IND;
- drbd_md_write(mdev, buffer);
+ drbd_md_write(device, buffer);
- dev_info(DEV, "Writing the whole bitmap, %s\n",
+ drbd_info(device, "Writing the whole bitmap, %s\n",
la_size_changed && md_moved ? "size changed and md moved" :
la_size_changed ? "size changed" : "md moved");
/* next line implicitly does drbd_suspend_io()+drbd_resume_io() */
- drbd_bitmap_io(mdev, md_moved ? &drbd_bm_write_all : &drbd_bm_write,
+ drbd_bitmap_io(device, md_moved ? &drbd_bm_write_all : &drbd_bm_write,
"size changed", BM_LOCKED_MASK);
- drbd_initialize_al(mdev, buffer);
+ drbd_initialize_al(device, buffer);
md->flags = prev_flags;
- drbd_md_write(mdev, buffer);
+ drbd_md_write(device, buffer);
if (rs)
- dev_info(DEV, "Changed AL layout to al-stripes = %d, al-stripe-size-kB = %d\n",
- md->al_stripes, md->al_stripe_size_4k * 4);
+ drbd_info(device, "Changed AL layout to al-stripes = %d, al-stripe-size-kB = %d\n",
+ md->al_stripes, md->al_stripe_size_4k * 4);
}
if (size > la_size_sect)
md->al_stripe_size_4k = prev_al_stripe_size_4k;
md->al_size_4k = (u64)prev_al_stripes * prev_al_stripe_size_4k;
- drbd_md_set_sector_offsets(mdev, mdev->ldev);
+ drbd_md_set_sector_offsets(device, device->ldev);
}
}
- lc_unlock(mdev->act_log);
- wake_up(&mdev->al_wait);
- drbd_md_put_buffer(mdev);
- drbd_resume_io(mdev);
+ lc_unlock(device->act_log);
+ wake_up(&device->al_wait);
+ drbd_md_put_buffer(device);
+ drbd_resume_io(device);
return rv;
}
sector_t
-drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev,
+drbd_new_dev_size(struct drbd_device *device, struct drbd_backing_dev *bdev,
sector_t u_size, int assume_peer_has_space)
{
- sector_t p_size = mdev->p_size; /* partner's disk size. */
+ sector_t p_size = device->p_size; /* partner's disk size. */
sector_t la_size_sect = bdev->md.la_size_sect; /* last agreed size. */
sector_t m_size; /* my size */
sector_t size = 0;
m_size = drbd_get_max_capacity(bdev);
- if (mdev->state.conn < C_CONNECTED && assume_peer_has_space) {
- dev_warn(DEV, "Resize while not connected was forced by the user!\n");
+ if (device->state.conn < C_CONNECTED && assume_peer_has_space) {
+ drbd_warn(device, "Resize while not connected was forced by the user!\n");
p_size = m_size;
}
}
if (size == 0)
- dev_err(DEV, "Both nodes diskless!\n");
+ drbd_err(device, "Both nodes diskless!\n");
if (u_size) {
if (u_size > size)
- dev_err(DEV, "Requested disk size is too big (%lu > %lu)\n",
+ drbd_err(device, "Requested disk size is too big (%lu > %lu)\n",
(unsigned long)u_size>>1, (unsigned long)size>>1);
else
size = u_size;
/**
* drbd_check_al_size() - Ensures that the AL is of the right size
- * @mdev: DRBD device.
+ * @device: DRBD device.
*
* Returns -EBUSY if current al lru is still used, -ENOMEM when allocation
* failed, and 0 on success. You should call drbd_md_sync() after you called
* this function.
*/
-static int drbd_check_al_size(struct drbd_conf *mdev, struct disk_conf *dc)
+static int drbd_check_al_size(struct drbd_device *device, struct disk_conf *dc)
{
struct lru_cache *n, *t;
struct lc_element *e;
unsigned int in_use;
int i;
- if (mdev->act_log &&
- mdev->act_log->nr_elements == dc->al_extents)
+ if (device->act_log &&
+ device->act_log->nr_elements == dc->al_extents)
return 0;
in_use = 0;
- t = mdev->act_log;
+ t = device->act_log;
n = lc_create("act_log", drbd_al_ext_cache, AL_UPDATES_PER_TRANSACTION,
dc->al_extents, sizeof(struct lc_element), 0);
if (n == NULL) {
- dev_err(DEV, "Cannot allocate act_log lru!\n");
+ drbd_err(device, "Cannot allocate act_log lru!\n");
return -ENOMEM;
}
- spin_lock_irq(&mdev->al_lock);
+ spin_lock_irq(&device->al_lock);
if (t) {
for (i = 0; i < t->nr_elements; i++) {
e = lc_element_by_index(t, i);
if (e->refcnt)
- dev_err(DEV, "refcnt(%d)==%d\n",
+ drbd_err(device, "refcnt(%d)==%d\n",
e->lc_number, e->refcnt);
in_use += e->refcnt;
}
}
if (!in_use)
- mdev->act_log = n;
- spin_unlock_irq(&mdev->al_lock);
+ device->act_log = n;
+ spin_unlock_irq(&device->al_lock);
if (in_use) {
- dev_err(DEV, "Activity log still in use!\n");
+ drbd_err(device, "Activity log still in use!\n");
lc_destroy(n);
return -EBUSY;
} else {
if (t)
lc_destroy(t);
}
- drbd_md_mark_dirty(mdev); /* we changed mdev->act_log->nr_elemens */
+ drbd_md_mark_dirty(device); /* we changed device->act_log->nr_elemens */
return 0;
}
-static void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_bio_size)
+static void drbd_setup_queue_param(struct drbd_device *device, unsigned int max_bio_size)
{
- struct request_queue * const q = mdev->rq_queue;
+ struct request_queue * const q = device->rq_queue;
unsigned int max_hw_sectors = max_bio_size >> 9;
unsigned int max_segments = 0;
- if (get_ldev_if_state(mdev, D_ATTACHING)) {
- struct request_queue * const b = mdev->ldev->backing_bdev->bd_disk->queue;
+ if (get_ldev_if_state(device, D_ATTACHING)) {
+ struct request_queue * const b = device->ldev->backing_bdev->bd_disk->queue;
max_hw_sectors = min(queue_max_hw_sectors(b), max_bio_size >> 9);
rcu_read_lock();
- max_segments = rcu_dereference(mdev->ldev->disk_conf)->max_bio_bvecs;
+ max_segments = rcu_dereference(device->ldev->disk_conf)->max_bio_bvecs;
rcu_read_unlock();
- put_ldev(mdev);
+ put_ldev(device);
}
blk_queue_logical_block_size(q, 512);
blk_queue_max_segments(q, max_segments ? max_segments : BLK_MAX_SEGMENTS);
blk_queue_segment_boundary(q, PAGE_CACHE_SIZE-1);
- if (get_ldev_if_state(mdev, D_ATTACHING)) {
- struct request_queue * const b = mdev->ldev->backing_bdev->bd_disk->queue;
+ if (get_ldev_if_state(device, D_ATTACHING)) {
+ struct request_queue * const b = device->ldev->backing_bdev->bd_disk->queue;
blk_queue_stack_limits(q, b);
if (q->backing_dev_info.ra_pages != b->backing_dev_info.ra_pages) {
- dev_info(DEV, "Adjusting my ra_pages to backing device's (%lu -> %lu)\n",
+ drbd_info(device, "Adjusting my ra_pages to backing device's (%lu -> %lu)\n",
q->backing_dev_info.ra_pages,
b->backing_dev_info.ra_pages);
q->backing_dev_info.ra_pages = b->backing_dev_info.ra_pages;
}
- put_ldev(mdev);
+ put_ldev(device);
}
}
-void drbd_reconsider_max_bio_size(struct drbd_conf *mdev)
+void drbd_reconsider_max_bio_size(struct drbd_device *device)
{
unsigned int now, new, local, peer;
- now = queue_max_hw_sectors(mdev->rq_queue) << 9;
- local = mdev->local_max_bio_size; /* Eventually last known value, from volatile memory */
- peer = mdev->peer_max_bio_size; /* Eventually last known value, from meta data */
+ now = queue_max_hw_sectors(device->rq_queue) << 9;
+ local = device->local_max_bio_size; /* Eventually last known value, from volatile memory */
+ peer = device->peer_max_bio_size; /* Eventually last known value, from meta data */
- if (get_ldev_if_state(mdev, D_ATTACHING)) {
- local = queue_max_hw_sectors(mdev->ldev->backing_bdev->bd_disk->queue) << 9;
- mdev->local_max_bio_size = local;
- put_ldev(mdev);
+ if (get_ldev_if_state(device, D_ATTACHING)) {
+ local = queue_max_hw_sectors(device->ldev->backing_bdev->bd_disk->queue) << 9;
+ device->local_max_bio_size = local;
+ put_ldev(device);
}
local = min(local, DRBD_MAX_BIO_SIZE);
/* We may ignore peer limits if the peer is modern enough.
Because new from 8.3.8 onwards the peer can use multiple
BIOs for a single peer_request */
- if (mdev->state.conn >= C_WF_REPORT_PARAMS) {
- if (mdev->tconn->agreed_pro_version < 94)
- peer = min(mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET);
+ if (device->state.conn >= C_WF_REPORT_PARAMS) {
+ if (first_peer_device(device)->connection->agreed_pro_version < 94)
+ peer = min(device->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET);
/* Correct old drbd (up to 8.3.7) if it believes it can do more than 32KiB */
- else if (mdev->tconn->agreed_pro_version == 94)
+ else if (first_peer_device(device)->connection->agreed_pro_version == 94)
peer = DRBD_MAX_SIZE_H80_PACKET;
- else if (mdev->tconn->agreed_pro_version < 100)
+ else if (first_peer_device(device)->connection->agreed_pro_version < 100)
peer = DRBD_MAX_BIO_SIZE_P95; /* drbd 8.3.8 onwards, before 8.4.0 */
else
peer = DRBD_MAX_BIO_SIZE;
new = min(local, peer);
- if (mdev->state.role == R_PRIMARY && new < now)
- dev_err(DEV, "ASSERT FAILED new < now; (%u < %u)\n", new, now);
+ if (device->state.role == R_PRIMARY && new < now)
+ drbd_err(device, "ASSERT FAILED new < now; (%u < %u)\n", new, now);
if (new != now)
- dev_info(DEV, "max BIO size = %u\n", new);
+ drbd_info(device, "max BIO size = %u\n", new);
- drbd_setup_queue_param(mdev, new);
+ drbd_setup_queue_param(device, new);
}
/* Starts the worker thread */
-static void conn_reconfig_start(struct drbd_tconn *tconn)
+static void conn_reconfig_start(struct drbd_connection *connection)
{
- drbd_thread_start(&tconn->worker);
- conn_flush_workqueue(tconn);
+ drbd_thread_start(&connection->worker);
+ conn_flush_workqueue(connection);
}
/* if still unconfigured, stops worker again. */
-static void conn_reconfig_done(struct drbd_tconn *tconn)
+static void conn_reconfig_done(struct drbd_connection *connection)
{
bool stop_threads;
- spin_lock_irq(&tconn->req_lock);
- stop_threads = conn_all_vols_unconf(tconn) &&
- tconn->cstate == C_STANDALONE;
- spin_unlock_irq(&tconn->req_lock);
+ spin_lock_irq(&connection->req_lock);
+ stop_threads = conn_all_vols_unconf(connection) &&
+ connection->cstate == C_STANDALONE;
+ spin_unlock_irq(&connection->req_lock);
if (stop_threads) {
/* asender is implicitly stopped by receiver
* in conn_disconnect() */
- drbd_thread_stop(&tconn->receiver);
- drbd_thread_stop(&tconn->worker);
+ drbd_thread_stop(&connection->receiver);
+ drbd_thread_stop(&connection->worker);
}
}
/* Make sure IO is suspended before calling this function(). */
-static void drbd_suspend_al(struct drbd_conf *mdev)
+static void drbd_suspend_al(struct drbd_device *device)
{
int s = 0;
- if (!lc_try_lock(mdev->act_log)) {
- dev_warn(DEV, "Failed to lock al in drbd_suspend_al()\n");
+ if (!lc_try_lock(device->act_log)) {
+ drbd_warn(device, "Failed to lock al in drbd_suspend_al()\n");
return;
}
- drbd_al_shrink(mdev);
- spin_lock_irq(&mdev->tconn->req_lock);
- if (mdev->state.conn < C_CONNECTED)
- s = !test_and_set_bit(AL_SUSPENDED, &mdev->flags);
- spin_unlock_irq(&mdev->tconn->req_lock);
- lc_unlock(mdev->act_log);
+ drbd_al_shrink(device);
+ spin_lock_irq(&first_peer_device(device)->connection->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);
+ lc_unlock(device->act_log);
if (s)
- dev_info(DEV, "Suspended AL updates\n");
+ drbd_info(device, "Suspended AL updates\n");
}
int drbd_adm_disk_opts(struct sk_buff *skb, struct genl_info *info)
{
enum drbd_ret_code retcode;
- struct drbd_conf *mdev;
+ struct drbd_device *device;
struct disk_conf *new_disk_conf, *old_disk_conf;
struct fifo_buffer *old_plan = NULL, *new_plan = NULL;
int err, fifo_size;
if (retcode != NO_ERROR)
goto out;
- mdev = adm_ctx.mdev;
+ device = adm_ctx.device;
/* we also need a disk
* to change the options on */
- if (!get_ldev(mdev)) {
+ if (!get_ldev(device)) {
retcode = ERR_NO_DISK;
goto out;
}
goto fail;
}
- mutex_lock(&mdev->tconn->conf_update);
- old_disk_conf = mdev->ldev->disk_conf;
+ mutex_lock(&first_peer_device(device)->connection->conf_update);
+ old_disk_conf = device->ldev->disk_conf;
*new_disk_conf = *old_disk_conf;
if (should_set_defaults(info))
set_disk_conf_defaults(new_disk_conf);
if (err && err != -ENOMSG) {
retcode = ERR_MANDATORY_TAG;
drbd_msg_put_info(from_attrs_err_to_txt(err));
+ goto fail_unlock;
}
if (!expect(new_disk_conf->resync_rate >= 1))
if (new_disk_conf->al_extents < DRBD_AL_EXTENTS_MIN)
new_disk_conf->al_extents = DRBD_AL_EXTENTS_MIN;
- if (new_disk_conf->al_extents > drbd_al_extents_max(mdev->ldev))
- new_disk_conf->al_extents = drbd_al_extents_max(mdev->ldev);
+ if (new_disk_conf->al_extents > drbd_al_extents_max(device->ldev))
+ new_disk_conf->al_extents = drbd_al_extents_max(device->ldev);
if (new_disk_conf->c_plan_ahead > DRBD_C_PLAN_AHEAD_MAX)
new_disk_conf->c_plan_ahead = DRBD_C_PLAN_AHEAD_MAX;
fifo_size = (new_disk_conf->c_plan_ahead * 10 * SLEEP_TIME) / HZ;
- if (fifo_size != mdev->rs_plan_s->size) {
+ if (fifo_size != device->rs_plan_s->size) {
new_plan = fifo_alloc(fifo_size);
if (!new_plan) {
- dev_err(DEV, "kmalloc of fifo_buffer failed");
+ drbd_err(device, "kmalloc of fifo_buffer failed");
retcode = ERR_NOMEM;
goto fail_unlock;
}
}
- drbd_suspend_io(mdev);
- wait_event(mdev->al_wait, lc_try_lock(mdev->act_log));
- drbd_al_shrink(mdev);
- err = drbd_check_al_size(mdev, new_disk_conf);
- lc_unlock(mdev->act_log);
- wake_up(&mdev->al_wait);
- drbd_resume_io(mdev);
+ drbd_suspend_io(device);
+ wait_event(device->al_wait, lc_try_lock(device->act_log));
+ drbd_al_shrink(device);
+ err = drbd_check_al_size(device, new_disk_conf);
+ lc_unlock(device->act_log);
+ wake_up(&device->al_wait);
+ drbd_resume_io(device);
if (err) {
retcode = ERR_NOMEM;
}
write_lock_irq(&global_state_lock);
- retcode = drbd_resync_after_valid(mdev, new_disk_conf->resync_after);
+ retcode = drbd_resync_after_valid(device, new_disk_conf->resync_after);
if (retcode == NO_ERROR) {
- rcu_assign_pointer(mdev->ldev->disk_conf, new_disk_conf);
- drbd_resync_after_changed(mdev);
+ rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);
+ drbd_resync_after_changed(device);
}
write_unlock_irq(&global_state_lock);
goto fail_unlock;
if (new_plan) {
- old_plan = mdev->rs_plan_s;
- rcu_assign_pointer(mdev->rs_plan_s, new_plan);
+ old_plan = device->rs_plan_s;
+ rcu_assign_pointer(device->rs_plan_s, new_plan);
}
- mutex_unlock(&mdev->tconn->conf_update);
+ mutex_unlock(&first_peer_device(device)->connection->conf_update);
if (new_disk_conf->al_updates)
- mdev->ldev->md.flags &= ~MDF_AL_DISABLED;
+ device->ldev->md.flags &= ~MDF_AL_DISABLED;
else
- mdev->ldev->md.flags |= MDF_AL_DISABLED;
+ device->ldev->md.flags |= MDF_AL_DISABLED;
if (new_disk_conf->md_flushes)
- clear_bit(MD_NO_FUA, &mdev->flags);
+ clear_bit(MD_NO_FUA, &device->flags);
else
- set_bit(MD_NO_FUA, &mdev->flags);
+ set_bit(MD_NO_FUA, &device->flags);
- drbd_bump_write_ordering(mdev->tconn, WO_bdev_flush);
+ drbd_bump_write_ordering(first_peer_device(device)->connection, WO_bdev_flush);
- drbd_md_sync(mdev);
+ drbd_md_sync(device);
- if (mdev->state.conn >= C_CONNECTED)
- drbd_send_sync_param(mdev);
+ if (device->state.conn >= C_CONNECTED)
+ drbd_send_sync_param(device);
synchronize_rcu();
kfree(old_disk_conf);
kfree(old_plan);
- mod_timer(&mdev->request_timer, jiffies + HZ);
+ mod_timer(&device->request_timer, jiffies + HZ);
goto success;
fail_unlock:
- mutex_unlock(&mdev->tconn->conf_update);
+ mutex_unlock(&first_peer_device(device)->connection->conf_update);
fail:
kfree(new_disk_conf);
kfree(new_plan);
success:
- put_ldev(mdev);
+ put_ldev(device);
out:
drbd_adm_finish(info, retcode);
return 0;
int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info)
{
- struct drbd_conf *mdev;
+ struct drbd_device *device;
int err;
enum drbd_ret_code retcode;
enum determine_dev_size dd;
if (retcode != NO_ERROR)
goto finish;
- mdev = adm_ctx.mdev;
- conn_reconfig_start(mdev->tconn);
+ device = adm_ctx.device;
+ conn_reconfig_start(first_peer_device(device)->connection);
/* if you want to reconfigure, please tear down first */
- if (mdev->state.disk > D_DISKLESS) {
+ if (device->state.disk > D_DISKLESS) {
retcode = ERR_DISK_CONFIGURED;
goto fail;
}
* drbd_ldev_destroy is done already, we may end up here very fast,
* e.g. if someone calls attach from the on-io-error handler,
* to realize a "hot spare" feature (not that I'd recommend that) */
- wait_event(mdev->misc_wait, !atomic_read(&mdev->local_cnt));
+ wait_event(device->misc_wait, !atomic_read(&device->local_cnt));
/* make sure there is no leftover from previous force-detach attempts */
- clear_bit(FORCE_DETACH, &mdev->flags);
- clear_bit(WAS_IO_ERROR, &mdev->flags);
- clear_bit(WAS_READ_ERROR, &mdev->flags);
+ clear_bit(FORCE_DETACH, &device->flags);
+ clear_bit(WAS_IO_ERROR, &device->flags);
+ clear_bit(WAS_READ_ERROR, &device->flags);
/* and no leftover from previously aborted resync or verify, either */
- mdev->rs_total = 0;
- mdev->rs_failed = 0;
- atomic_set(&mdev->rs_pending_cnt, 0);
+ device->rs_total = 0;
+ device->rs_failed = 0;
+ atomic_set(&device->rs_pending_cnt, 0);
/* allocation not in the IO path, drbdsetup context */
nbc = kzalloc(sizeof(struct drbd_backing_dev), GFP_KERNEL);
}
write_lock_irq(&global_state_lock);
- retcode = drbd_resync_after_valid(mdev, new_disk_conf->resync_after);
+ retcode = drbd_resync_after_valid(device, new_disk_conf->resync_after);
write_unlock_irq(&global_state_lock);
if (retcode != NO_ERROR)
goto fail;
rcu_read_lock();
- nc = rcu_dereference(mdev->tconn->net_conf);
+ nc = rcu_dereference(first_peer_device(device)->connection->net_conf);
if (nc) {
if (new_disk_conf->fencing == FP_STONITH && nc->wire_protocol == DRBD_PROT_A) {
rcu_read_unlock();
rcu_read_unlock();
bdev = blkdev_get_by_path(new_disk_conf->backing_dev,
- FMODE_READ | FMODE_WRITE | FMODE_EXCL, mdev);
+ FMODE_READ | FMODE_WRITE | FMODE_EXCL, device);
if (IS_ERR(bdev)) {
- dev_err(DEV, "open(\"%s\") failed with %ld\n", new_disk_conf->backing_dev,
+ drbd_err(device, "open(\"%s\") failed with %ld\n", new_disk_conf->backing_dev,
PTR_ERR(bdev));
retcode = ERR_OPEN_DISK;
goto fail;
bdev = blkdev_get_by_path(new_disk_conf->meta_dev,
FMODE_READ | FMODE_WRITE | FMODE_EXCL,
(new_disk_conf->meta_dev_idx < 0) ?
- (void *)mdev : (void *)drbd_m_holder);
+ (void *)device : (void *)drbd_m_holder);
if (IS_ERR(bdev)) {
- dev_err(DEV, "open(\"%s\") failed with %ld\n", new_disk_conf->meta_dev,
+ drbd_err(device, "open(\"%s\") failed with %ld\n", new_disk_conf->meta_dev,
PTR_ERR(bdev));
retcode = ERR_OPEN_MD_DISK;
goto fail;
/* Read our meta data super block early.
* This also sets other on-disk offsets. */
- retcode = drbd_md_read(mdev, nbc);
+ retcode = drbd_md_read(device, nbc);
if (retcode != NO_ERROR)
goto fail;
new_disk_conf->al_extents = drbd_al_extents_max(nbc);
if (drbd_get_max_capacity(nbc) < new_disk_conf->disk_size) {
- dev_err(DEV, "max capacity %llu smaller than disk size %llu\n",
+ drbd_err(device, "max capacity %llu smaller than disk size %llu\n",
(unsigned long long) drbd_get_max_capacity(nbc),
(unsigned long long) new_disk_conf->disk_size);
retcode = ERR_DISK_TOO_SMALL;
if (drbd_get_capacity(nbc->md_bdev) < min_md_device_sectors) {
retcode = ERR_MD_DISK_TOO_SMALL;
- dev_warn(DEV, "refusing attach: md-device too small, "
+ drbd_warn(device, "refusing attach: md-device too small, "
"at least %llu sectors needed for this meta-disk type\n",
(unsigned long long) min_md_device_sectors);
goto fail;
/* Make sure the new disk is big enough
* (we may currently be R_PRIMARY with no local disk...) */
if (drbd_get_max_capacity(nbc) <
- drbd_get_capacity(mdev->this_bdev)) {
+ drbd_get_capacity(device->this_bdev)) {
retcode = ERR_DISK_TOO_SMALL;
goto fail;
}
nbc->known_size = drbd_get_capacity(nbc->backing_bdev);
if (nbc->known_size > max_possible_sectors) {
- dev_warn(DEV, "==> truncating very big lower level device "
+ drbd_warn(device, "==> truncating very big lower level device "
"to currently maximum possible %llu sectors <==\n",
(unsigned long long) max_possible_sectors);
if (new_disk_conf->meta_dev_idx >= 0)
- dev_warn(DEV, "==>> using internal or flexible "
+ drbd_warn(device, "==>> using internal or flexible "
"meta data may help <<==\n");
}
- drbd_suspend_io(mdev);
+ drbd_suspend_io(device);
/* also wait for the last barrier ack. */
/* FIXME see also https://daiquiri.linbit/cgi-bin/bugzilla/show_bug.cgi?id=171
* We need a way to either ignore barrier acks for barriers sent before a device
* As barriers are counted per resource,
* we'd need to suspend io on all devices of a resource.
*/
- wait_event(mdev->misc_wait, !atomic_read(&mdev->ap_pending_cnt) || drbd_suspended(mdev));
+ wait_event(device->misc_wait, !atomic_read(&device->ap_pending_cnt) || drbd_suspended(device));
/* and for any other previously queued work */
- drbd_flush_workqueue(mdev);
+ drbd_flush_workqueue(device);
- rv = _drbd_request_state(mdev, NS(disk, D_ATTACHING), CS_VERBOSE);
+ rv = _drbd_request_state(device, NS(disk, D_ATTACHING), CS_VERBOSE);
retcode = rv; /* FIXME: Type mismatch. */
- drbd_resume_io(mdev);
+ drbd_resume_io(device);
if (rv < SS_SUCCESS)
goto fail;
- if (!get_ldev_if_state(mdev, D_ATTACHING))
+ if (!get_ldev_if_state(device, D_ATTACHING))
goto force_diskless;
- if (!mdev->bitmap) {
- if (drbd_bm_init(mdev)) {
+ if (!device->bitmap) {
+ if (drbd_bm_init(device)) {
retcode = ERR_NOMEM;
goto force_diskless_dec;
}
}
- if (mdev->state.conn < C_CONNECTED &&
- mdev->state.role == R_PRIMARY &&
- (mdev->ed_uuid & ~((u64)1)) != (nbc->md.uuid[UI_CURRENT] & ~((u64)1))) {
- dev_err(DEV, "Can only attach to data with current UUID=%016llX\n",
- (unsigned long long)mdev->ed_uuid);
+ if (device->state.conn < C_CONNECTED &&
+ device->state.role == R_PRIMARY &&
+ (device->ed_uuid & ~((u64)1)) != (nbc->md.uuid[UI_CURRENT] & ~((u64)1))) {
+ drbd_err(device, "Can only attach to data with current UUID=%016llX\n",
+ (unsigned long long)device->ed_uuid);
retcode = ERR_DATA_NOT_CURRENT;
goto force_diskless_dec;
}
/* Since we are diskless, fix the activity log first... */
- if (drbd_check_al_size(mdev, new_disk_conf)) {
+ if (drbd_check_al_size(device, new_disk_conf)) {
retcode = ERR_NOMEM;
goto force_diskless_dec;
}
/* Prevent shrinking of consistent devices ! */
if (drbd_md_test_flag(nbc, MDF_CONSISTENT) &&
- drbd_new_dev_size(mdev, nbc, nbc->disk_conf->disk_size, 0) < nbc->md.la_size_sect) {
- dev_warn(DEV, "refusing to truncate a consistent device\n");
+ drbd_new_dev_size(device, nbc, nbc->disk_conf->disk_size, 0) < nbc->md.la_size_sect) {
+ drbd_warn(device, "refusing to truncate a consistent device\n");
retcode = ERR_DISK_TOO_SMALL;
goto force_diskless_dec;
}
/* Reset the "barriers don't work" bits here, then force meta data to
* be written, to ensure we determine if barriers are supported. */
if (new_disk_conf->md_flushes)
- clear_bit(MD_NO_FUA, &mdev->flags);
+ clear_bit(MD_NO_FUA, &device->flags);
else
- set_bit(MD_NO_FUA, &mdev->flags);
+ set_bit(MD_NO_FUA, &device->flags);
/* Point of no return reached.
* Devices and memory are no longer released by error cleanup below.
- * now mdev takes over responsibility, and the state engine should
+ * now device takes over responsibility, and the state engine should
* clean it up somewhere. */
- D_ASSERT(mdev->ldev == NULL);
- mdev->ldev = nbc;
- mdev->resync = resync_lru;
- mdev->rs_plan_s = new_plan;
+ D_ASSERT(device, device->ldev == NULL);
+ device->ldev = nbc;
+ device->resync = resync_lru;
+ device->rs_plan_s = new_plan;
nbc = NULL;
resync_lru = NULL;
new_disk_conf = NULL;
new_plan = NULL;
- drbd_bump_write_ordering(mdev->tconn, WO_bdev_flush);
+ drbd_bump_write_ordering(first_peer_device(device)->connection, WO_bdev_flush);
- if (drbd_md_test_flag(mdev->ldev, MDF_CRASHED_PRIMARY))
- set_bit(CRASHED_PRIMARY, &mdev->flags);
+ if (drbd_md_test_flag(device->ldev, MDF_CRASHED_PRIMARY))
+ set_bit(CRASHED_PRIMARY, &device->flags);
else
- clear_bit(CRASHED_PRIMARY, &mdev->flags);
+ clear_bit(CRASHED_PRIMARY, &device->flags);
- if (drbd_md_test_flag(mdev->ldev, MDF_PRIMARY_IND) &&
- !(mdev->state.role == R_PRIMARY && mdev->tconn->susp_nod))
- set_bit(CRASHED_PRIMARY, &mdev->flags);
+ if (drbd_md_test_flag(device->ldev, MDF_PRIMARY_IND) &&
+ !(device->state.role == R_PRIMARY &&
+ first_peer_device(device)->connection->susp_nod))
+ set_bit(CRASHED_PRIMARY, &device->flags);
- mdev->send_cnt = 0;
- mdev->recv_cnt = 0;
- mdev->read_cnt = 0;
- mdev->writ_cnt = 0;
+ device->send_cnt = 0;
+ device->recv_cnt = 0;
+ device->read_cnt = 0;
+ device->writ_cnt = 0;
- drbd_reconsider_max_bio_size(mdev);
+ drbd_reconsider_max_bio_size(device);
/* If I am currently not R_PRIMARY,
* but meta data primary indicator is set,
* so we can automatically recover from a crash of a
* degraded but active "cluster" after a certain timeout.
*/
- clear_bit(USE_DEGR_WFC_T, &mdev->flags);
- if (mdev->state.role != R_PRIMARY &&
- drbd_md_test_flag(mdev->ldev, MDF_PRIMARY_IND) &&
- !drbd_md_test_flag(mdev->ldev, MDF_CONNECTED_IND))
- set_bit(USE_DEGR_WFC_T, &mdev->flags);
+ clear_bit(USE_DEGR_WFC_T, &device->flags);
+ if (device->state.role != R_PRIMARY &&
+ drbd_md_test_flag(device->ldev, MDF_PRIMARY_IND) &&
+ !drbd_md_test_flag(device->ldev, MDF_CONNECTED_IND))
+ set_bit(USE_DEGR_WFC_T, &device->flags);
- dd = drbd_determine_dev_size(mdev, 0, NULL);
+ dd = drbd_determine_dev_size(device, 0, NULL);
if (dd <= DS_ERROR) {
retcode = ERR_NOMEM_BITMAP;
goto force_diskless_dec;
} else if (dd == DS_GREW)
- set_bit(RESYNC_AFTER_NEG, &mdev->flags);
+ set_bit(RESYNC_AFTER_NEG, &device->flags);
- if (drbd_md_test_flag(mdev->ldev, MDF_FULL_SYNC) ||
- (test_bit(CRASHED_PRIMARY, &mdev->flags) &&
- drbd_md_test_flag(mdev->ldev, MDF_AL_DISABLED))) {
- dev_info(DEV, "Assuming that all blocks are out of sync "
+ if (drbd_md_test_flag(device->ldev, MDF_FULL_SYNC) ||
+ (test_bit(CRASHED_PRIMARY, &device->flags) &&
+ drbd_md_test_flag(device->ldev, MDF_AL_DISABLED))) {
+ drbd_info(device, "Assuming that all blocks are out of sync "
"(aka FullSync)\n");
- if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write,
+ if (drbd_bitmap_io(device, &drbd_bmio_set_n_write,
"set_n_write from attaching", BM_LOCKED_MASK)) {
retcode = ERR_IO_MD_DISK;
goto force_diskless_dec;
}
} else {
- if (drbd_bitmap_io(mdev, &drbd_bm_read,
+ if (drbd_bitmap_io(device, &drbd_bm_read,
"read from attaching", BM_LOCKED_MASK)) {
retcode = ERR_IO_MD_DISK;
goto force_diskless_dec;
}
}
- if (_drbd_bm_total_weight(mdev) == drbd_bm_bits(mdev))
- drbd_suspend_al(mdev); /* IO is still suspended here... */
+ if (_drbd_bm_total_weight(device) == drbd_bm_bits(device))
+ drbd_suspend_al(device); /* IO is still suspended here... */
- spin_lock_irq(&mdev->tconn->req_lock);
- os = drbd_read_state(mdev);
+ spin_lock_irq(&first_peer_device(device)->connection->req_lock);
+ os = drbd_read_state(device);
ns = os;
/* If MDF_CONSISTENT is not set go into inconsistent state,
otherwise investigate MDF_WasUpToDate...
If MDF_WAS_UP_TO_DATE is not set go into D_OUTDATED disk state,
otherwise into D_CONSISTENT state.
*/
- if (drbd_md_test_flag(mdev->ldev, MDF_CONSISTENT)) {
- if (drbd_md_test_flag(mdev->ldev, MDF_WAS_UP_TO_DATE))
+ if (drbd_md_test_flag(device->ldev, MDF_CONSISTENT)) {
+ if (drbd_md_test_flag(device->ldev, MDF_WAS_UP_TO_DATE))
ns.disk = D_CONSISTENT;
else
ns.disk = D_OUTDATED;
ns.disk = D_INCONSISTENT;
}
- if (drbd_md_test_flag(mdev->ldev, MDF_PEER_OUT_DATED))
+ if (drbd_md_test_flag(device->ldev, MDF_PEER_OUT_DATED))
ns.pdsk = D_OUTDATED;
rcu_read_lock();
if (ns.disk == D_CONSISTENT &&
- (ns.pdsk == D_OUTDATED || rcu_dereference(mdev->ldev->disk_conf)->fencing == FP_DONT_CARE))
+ (ns.pdsk == D_OUTDATED || rcu_dereference(device->ldev->disk_conf)->fencing == FP_DONT_CARE))
ns.disk = D_UP_TO_DATE;
/* All tests on MDF_PRIMARY_IND, MDF_CONNECTED_IND,
this point, because drbd_request_state() modifies these
flags. */
- if (rcu_dereference(mdev->ldev->disk_conf)->al_updates)
- mdev->ldev->md.flags &= ~MDF_AL_DISABLED;
+ if (rcu_dereference(device->ldev->disk_conf)->al_updates)
+ device->ldev->md.flags &= ~MDF_AL_DISABLED;
else
- mdev->ldev->md.flags |= MDF_AL_DISABLED;
+ device->ldev->md.flags |= MDF_AL_DISABLED;
rcu_read_unlock();
/* In case we are C_CONNECTED postpone any decision on the new disk
state after the negotiation phase. */
- if (mdev->state.conn == C_CONNECTED) {
- mdev->new_state_tmp.i = ns.i;
+ if (device->state.conn == C_CONNECTED) {
+ device->new_state_tmp.i = ns.i;
ns.i = os.i;
ns.disk = D_NEGOTIATING;
/* We expect to receive up-to-date UUIDs soon.
To avoid a race in receive_state, free p_uuid while
holding req_lock. I.e. atomic with the state change */
- kfree(mdev->p_uuid);
- mdev->p_uuid = NULL;
+ kfree(device->p_uuid);
+ device->p_uuid = NULL;
}
- rv = _drbd_set_state(mdev, ns, CS_VERBOSE, NULL);
- spin_unlock_irq(&mdev->tconn->req_lock);
+ rv = _drbd_set_state(device, ns, CS_VERBOSE, NULL);
+ spin_unlock_irq(&first_peer_device(device)->connection->req_lock);
if (rv < SS_SUCCESS)
goto force_diskless_dec;
- mod_timer(&mdev->request_timer, jiffies + HZ);
+ mod_timer(&device->request_timer, jiffies + HZ);
- if (mdev->state.role == R_PRIMARY)
- mdev->ldev->md.uuid[UI_CURRENT] |= (u64)1;
+ if (device->state.role == R_PRIMARY)
+ device->ldev->md.uuid[UI_CURRENT] |= (u64)1;
else
- mdev->ldev->md.uuid[UI_CURRENT] &= ~(u64)1;
+ device->ldev->md.uuid[UI_CURRENT] &= ~(u64)1;
- drbd_md_mark_dirty(mdev);
- drbd_md_sync(mdev);
+ drbd_md_mark_dirty(device);
+ drbd_md_sync(device);
- kobject_uevent(&disk_to_dev(mdev->vdisk)->kobj, KOBJ_CHANGE);
- put_ldev(mdev);
- conn_reconfig_done(mdev->tconn);
+ kobject_uevent(&disk_to_dev(device->vdisk)->kobj, KOBJ_CHANGE);
+ put_ldev(device);
+ conn_reconfig_done(first_peer_device(device)->connection);
drbd_adm_finish(info, retcode);
return 0;
force_diskless_dec:
- put_ldev(mdev);
+ put_ldev(device);
force_diskless:
- drbd_force_state(mdev, NS(disk, D_DISKLESS));
- drbd_md_sync(mdev);
+ drbd_force_state(device, NS(disk, D_DISKLESS));
+ drbd_md_sync(device);
fail:
- conn_reconfig_done(mdev->tconn);
+ conn_reconfig_done(first_peer_device(device)->connection);
if (nbc) {
if (nbc->backing_bdev)
blkdev_put(nbc->backing_bdev,
return 0;
}
-static int adm_detach(struct drbd_conf *mdev, int force)
+static int adm_detach(struct drbd_device *device, int force)
{
enum drbd_state_rv retcode;
int ret;
if (force) {
- set_bit(FORCE_DETACH, &mdev->flags);
- drbd_force_state(mdev, NS(disk, D_FAILED));
+ set_bit(FORCE_DETACH, &device->flags);
+ drbd_force_state(device, NS(disk, D_FAILED));
retcode = SS_SUCCESS;
goto out;
}
- drbd_suspend_io(mdev); /* so no-one is stuck in drbd_al_begin_io */
- drbd_md_get_buffer(mdev); /* make sure there is no in-flight meta-data IO */
- retcode = drbd_request_state(mdev, NS(disk, D_FAILED));
- drbd_md_put_buffer(mdev);
+ drbd_suspend_io(device); /* so no-one is stuck in drbd_al_begin_io */
+ drbd_md_get_buffer(device); /* make sure there is no in-flight meta-data IO */
+ retcode = drbd_request_state(device, NS(disk, D_FAILED));
+ drbd_md_put_buffer(device);
/* D_FAILED will transition to DISKLESS. */
- ret = wait_event_interruptible(mdev->misc_wait,
- mdev->state.disk != D_FAILED);
- drbd_resume_io(mdev);
+ ret = wait_event_interruptible(device->misc_wait,
+ device->state.disk != D_FAILED);
+ drbd_resume_io(device);
if ((int)retcode == (int)SS_IS_DISKLESS)
retcode = SS_NOTHING_TO_DO;
if (ret)
}
}
- retcode = adm_detach(adm_ctx.mdev, parms.force_detach);
+ retcode = adm_detach(adm_ctx.device, parms.force_detach);
out:
drbd_adm_finish(info, retcode);
return 0;
}
-static bool conn_resync_running(struct drbd_tconn *tconn)
+static bool conn_resync_running(struct drbd_connection *connection)
{
- struct drbd_conf *mdev;
+ struct drbd_peer_device *peer_device;
bool rv = false;
int vnr;
rcu_read_lock();
- idr_for_each_entry(&tconn->volumes, mdev, vnr) {
- if (mdev->state.conn == C_SYNC_SOURCE ||
- mdev->state.conn == C_SYNC_TARGET ||
- mdev->state.conn == C_PAUSED_SYNC_S ||
- mdev->state.conn == C_PAUSED_SYNC_T) {
+ idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {
+ struct drbd_device *device = peer_device->device;
+ if (device->state.conn == C_SYNC_SOURCE ||
+ device->state.conn == C_SYNC_TARGET ||
+ device->state.conn == C_PAUSED_SYNC_S ||
+ device->state.conn == C_PAUSED_SYNC_T) {
rv = true;
break;
}
return rv;
}
-static bool conn_ov_running(struct drbd_tconn *tconn)
+static bool conn_ov_running(struct drbd_connection *connection)
{
- struct drbd_conf *mdev;
+ struct drbd_peer_device *peer_device;
bool rv = false;
int vnr;
rcu_read_lock();
- idr_for_each_entry(&tconn->volumes, mdev, vnr) {
- if (mdev->state.conn == C_VERIFY_S ||
- mdev->state.conn == C_VERIFY_T) {
+ idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {
+ struct drbd_device *device = peer_device->device;
+ if (device->state.conn == C_VERIFY_S ||
+ device->state.conn == C_VERIFY_T) {
rv = true;
break;
}
}
static enum drbd_ret_code
-_check_net_options(struct drbd_tconn *tconn, struct net_conf *old_conf, struct net_conf *new_conf)
+_check_net_options(struct drbd_connection *connection, struct net_conf *old_conf, struct net_conf *new_conf)
{
- struct drbd_conf *mdev;
+ struct drbd_peer_device *peer_device;
int i;
- if (old_conf && tconn->cstate == C_WF_REPORT_PARAMS && tconn->agreed_pro_version < 100) {
+ if (old_conf && connection->cstate == C_WF_REPORT_PARAMS && connection->agreed_pro_version < 100) {
if (new_conf->wire_protocol != old_conf->wire_protocol)
return ERR_NEED_APV_100;
}
if (!new_conf->two_primaries &&
- conn_highest_role(tconn) == R_PRIMARY &&
- conn_highest_peer(tconn) == R_PRIMARY)
+ conn_highest_role(connection) == R_PRIMARY &&
+ conn_highest_peer(connection) == R_PRIMARY)
return ERR_NEED_ALLOW_TWO_PRI;
if (new_conf->two_primaries &&
(new_conf->wire_protocol != DRBD_PROT_C))
return ERR_NOT_PROTO_C;
- idr_for_each_entry(&tconn->volumes, mdev, i) {
- if (get_ldev(mdev)) {
- enum drbd_fencing_p fp = rcu_dereference(mdev->ldev->disk_conf)->fencing;
- put_ldev(mdev);
+ idr_for_each_entry(&connection->peer_devices, peer_device, i) {
+ struct drbd_device *device = peer_device->device;
+ if (get_ldev(device)) {
+ enum drbd_fencing_p fp = rcu_dereference(device->ldev->disk_conf)->fencing;
+ put_ldev(device);
if (new_conf->wire_protocol == DRBD_PROT_A && fp == FP_STONITH)
return ERR_STONITH_AND_PROT_A;
}
- if (mdev->state.role == R_PRIMARY && new_conf->discard_my_data)
+ if (device->state.role == R_PRIMARY && new_conf->discard_my_data)
return ERR_DISCARD_IMPOSSIBLE;
}
}
static enum drbd_ret_code
-check_net_options(struct drbd_tconn *tconn, struct net_conf *new_conf)
+check_net_options(struct drbd_connection *connection, struct net_conf *new_conf)
{
static enum drbd_ret_code rv;
- struct drbd_conf *mdev;
+ struct drbd_peer_device *peer_device;
int i;
rcu_read_lock();
- rv = _check_net_options(tconn, rcu_dereference(tconn->net_conf), new_conf);
+ rv = _check_net_options(connection, rcu_dereference(connection->net_conf), new_conf);
rcu_read_unlock();
- /* tconn->volumes protected by genl_lock() here */
- idr_for_each_entry(&tconn->volumes, mdev, i) {
- if (!mdev->bitmap) {
- if(drbd_bm_init(mdev))
+ /* connection->volumes protected by genl_lock() here */
+ idr_for_each_entry(&connection->peer_devices, peer_device, i) {
+ struct drbd_device *device = peer_device->device;
+ if (!device->bitmap) {
+ if (drbd_bm_init(device))
return ERR_NOMEM;
}
}
int drbd_adm_net_opts(struct sk_buff *skb, struct genl_info *info)
{
enum drbd_ret_code retcode;
- struct drbd_tconn *tconn;
+ struct drbd_connection *connection;
struct net_conf *old_conf, *new_conf = NULL;
int err;
int ovr; /* online verify running */
if (retcode != NO_ERROR)
goto out;
- tconn = adm_ctx.tconn;
+ connection = adm_ctx.connection;
new_conf = kzalloc(sizeof(struct net_conf), GFP_KERNEL);
if (!new_conf) {
goto out;
}
- conn_reconfig_start(tconn);
+ conn_reconfig_start(connection);
- mutex_lock(&tconn->data.mutex);
- mutex_lock(&tconn->conf_update);
- old_conf = tconn->net_conf;
+ mutex_lock(&connection->data.mutex);
+ mutex_lock(&connection->conf_update);
+ old_conf = connection->net_conf;
if (!old_conf) {
drbd_msg_put_info("net conf missing, try connect");
goto fail;
}
- retcode = check_net_options(tconn, new_conf);
+ retcode = check_net_options(connection, new_conf);
if (retcode != NO_ERROR)
goto fail;
/* re-sync running */
- rsr = conn_resync_running(tconn);
+ rsr = conn_resync_running(connection);
if (rsr && strcmp(new_conf->csums_alg, old_conf->csums_alg)) {
retcode = ERR_CSUMS_RESYNC_RUNNING;
goto fail;
}
/* online verify running */
- ovr = conn_ov_running(tconn);
+ ovr = conn_ov_running(connection);
if (ovr && strcmp(new_conf->verify_alg, old_conf->verify_alg)) {
retcode = ERR_VERIFY_RUNNING;
goto fail;
if (retcode != NO_ERROR)
goto fail;
- rcu_assign_pointer(tconn->net_conf, new_conf);
+ rcu_assign_pointer(connection->net_conf, new_conf);
if (!rsr) {
- crypto_free_hash(tconn->csums_tfm);
- tconn->csums_tfm = crypto.csums_tfm;
+ crypto_free_hash(connection->csums_tfm);
+ connection->csums_tfm = crypto.csums_tfm;
crypto.csums_tfm = NULL;
}
if (!ovr) {
- crypto_free_hash(tconn->verify_tfm);
- tconn->verify_tfm = crypto.verify_tfm;
+ crypto_free_hash(connection->verify_tfm);
+ connection->verify_tfm = crypto.verify_tfm;
crypto.verify_tfm = NULL;
}
- crypto_free_hash(tconn->integrity_tfm);
- tconn->integrity_tfm = crypto.integrity_tfm;
- if (tconn->cstate >= C_WF_REPORT_PARAMS && tconn->agreed_pro_version >= 100)
- /* Do this without trying to take tconn->data.mutex again. */
- __drbd_send_protocol(tconn, P_PROTOCOL_UPDATE);
+ crypto_free_hash(connection->integrity_tfm);
+ connection->integrity_tfm = crypto.integrity_tfm;
+ if (connection->cstate >= C_WF_REPORT_PARAMS && connection->agreed_pro_version >= 100)
+ /* Do this without trying to take connection->data.mutex again. */
+ __drbd_send_protocol(connection, P_PROTOCOL_UPDATE);
- crypto_free_hash(tconn->cram_hmac_tfm);
- tconn->cram_hmac_tfm = crypto.cram_hmac_tfm;
+ crypto_free_hash(connection->cram_hmac_tfm);
+ connection->cram_hmac_tfm = crypto.cram_hmac_tfm;
- mutex_unlock(&tconn->conf_update);
- mutex_unlock(&tconn->data.mutex);
+ mutex_unlock(&connection->conf_update);
+ mutex_unlock(&connection->data.mutex);
synchronize_rcu();
kfree(old_conf);
- if (tconn->cstate >= C_WF_REPORT_PARAMS)
- drbd_send_sync_param(minor_to_mdev(conn_lowest_minor(tconn)));
+ if (connection->cstate >= C_WF_REPORT_PARAMS)
+ drbd_send_sync_param(minor_to_device(conn_lowest_minor(connection)));
goto done;
fail:
- mutex_unlock(&tconn->conf_update);
- mutex_unlock(&tconn->data.mutex);
+ mutex_unlock(&connection->conf_update);
+ mutex_unlock(&connection->data.mutex);
free_crypto(&crypto);
kfree(new_conf);
done:
- conn_reconfig_done(tconn);
+ conn_reconfig_done(connection);
out:
drbd_adm_finish(info, retcode);
return 0;
int drbd_adm_connect(struct sk_buff *skb, struct genl_info *info)
{
- struct drbd_conf *mdev;
+ struct drbd_peer_device *peer_device;
struct net_conf *old_conf, *new_conf = NULL;
struct crypto crypto = { };
- struct drbd_tconn *tconn;
+ struct drbd_resource *resource;
+ struct drbd_connection *connection;
enum drbd_ret_code retcode;
int i;
int err;
/* No need for _rcu here. All reconfiguration is
* strictly serialized on genl_lock(). We are protected against
* concurrent reconfiguration/addition/deletion */
- list_for_each_entry(tconn, &drbd_tconns, all_tconn) {
- if (nla_len(adm_ctx.my_addr) == tconn->my_addr_len &&
- !memcmp(nla_data(adm_ctx.my_addr), &tconn->my_addr, tconn->my_addr_len)) {
- retcode = ERR_LOCAL_ADDR;
- goto out;
- }
+ for_each_resource(resource, &drbd_resources) {
+ for_each_connection(connection, resource) {
+ if (nla_len(adm_ctx.my_addr) == connection->my_addr_len &&
+ !memcmp(nla_data(adm_ctx.my_addr), &connection->my_addr,
+ connection->my_addr_len)) {
+ retcode = ERR_LOCAL_ADDR;
+ goto out;
+ }
- if (nla_len(adm_ctx.peer_addr) == tconn->peer_addr_len &&
- !memcmp(nla_data(adm_ctx.peer_addr), &tconn->peer_addr, tconn->peer_addr_len)) {
- retcode = ERR_PEER_ADDR;
- goto out;
+ if (nla_len(adm_ctx.peer_addr) == connection->peer_addr_len &&
+ !memcmp(nla_data(adm_ctx.peer_addr), &connection->peer_addr,
+ connection->peer_addr_len)) {
+ retcode = ERR_PEER_ADDR;
+ goto out;
+ }
}
}
- tconn = adm_ctx.tconn;
- conn_reconfig_start(tconn);
+ connection = adm_ctx.connection;
+ conn_reconfig_start(connection);
- if (tconn->cstate > C_STANDALONE) {
+ if (connection->cstate > C_STANDALONE) {
retcode = ERR_NET_CONFIGURED;
goto fail;
}
goto fail;
}
- retcode = check_net_options(tconn, new_conf);
+ retcode = check_net_options(connection, new_conf);
if (retcode != NO_ERROR)
goto fail;
((char *)new_conf->shared_secret)[SHARED_SECRET_MAX-1] = 0;
- conn_flush_workqueue(tconn);
+ conn_flush_workqueue(connection);
- mutex_lock(&tconn->conf_update);
- old_conf = tconn->net_conf;
+ mutex_lock(&connection->conf_update);
+ old_conf = connection->net_conf;
if (old_conf) {
retcode = ERR_NET_CONFIGURED;
- mutex_unlock(&tconn->conf_update);
+ mutex_unlock(&connection->conf_update);
goto fail;
}
- rcu_assign_pointer(tconn->net_conf, new_conf);
+ rcu_assign_pointer(connection->net_conf, new_conf);
- conn_free_crypto(tconn);
- tconn->cram_hmac_tfm = crypto.cram_hmac_tfm;
- tconn->integrity_tfm = crypto.integrity_tfm;
- tconn->csums_tfm = crypto.csums_tfm;
- tconn->verify_tfm = crypto.verify_tfm;
+ conn_free_crypto(connection);
+ connection->cram_hmac_tfm = crypto.cram_hmac_tfm;
+ connection->integrity_tfm = crypto.integrity_tfm;
+ connection->csums_tfm = crypto.csums_tfm;
+ connection->verify_tfm = crypto.verify_tfm;
- tconn->my_addr_len = nla_len(adm_ctx.my_addr);
- memcpy(&tconn->my_addr, nla_data(adm_ctx.my_addr), tconn->my_addr_len);
- tconn->peer_addr_len = nla_len(adm_ctx.peer_addr);
- memcpy(&tconn->peer_addr, nla_data(adm_ctx.peer_addr), tconn->peer_addr_len);
+ connection->my_addr_len = nla_len(adm_ctx.my_addr);
+ memcpy(&connection->my_addr, nla_data(adm_ctx.my_addr), connection->my_addr_len);
+ 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(&tconn->conf_update);
+ mutex_unlock(&connection->conf_update);
rcu_read_lock();
- idr_for_each_entry(&tconn->volumes, mdev, i) {
- mdev->send_cnt = 0;
- mdev->recv_cnt = 0;
+ idr_for_each_entry(&connection->peer_devices, peer_device, i) {
+ struct drbd_device *device = peer_device->device;
+ device->send_cnt = 0;
+ device->recv_cnt = 0;
}
rcu_read_unlock();
- retcode = conn_request_state(tconn, NS(conn, C_UNCONNECTED), CS_VERBOSE);
+ retcode = conn_request_state(connection, NS(conn, C_UNCONNECTED), CS_VERBOSE);
- conn_reconfig_done(tconn);
+ conn_reconfig_done(connection);
drbd_adm_finish(info, retcode);
return 0;
free_crypto(&crypto);
kfree(new_conf);
- conn_reconfig_done(tconn);
+ conn_reconfig_done(connection);
out:
drbd_adm_finish(info, retcode);
return 0;
}
-static enum drbd_state_rv conn_try_disconnect(struct drbd_tconn *tconn, bool force)
+static enum drbd_state_rv conn_try_disconnect(struct drbd_connection *connection, bool force)
{
enum drbd_state_rv rv;
- rv = conn_request_state(tconn, NS(conn, C_DISCONNECTING),
+ rv = conn_request_state(connection, NS(conn, C_DISCONNECTING),
force ? CS_HARD : 0);
switch (rv) {
return SS_SUCCESS;
case SS_PRIMARY_NOP:
/* Our state checking code wants to see the peer outdated. */
- rv = conn_request_state(tconn, NS2(conn, C_DISCONNECTING, pdsk, D_OUTDATED), 0);
+ rv = conn_request_state(connection, NS2(conn, C_DISCONNECTING, pdsk, D_OUTDATED), 0);
if (rv == SS_OUTDATE_WO_CONN) /* lost connection before graceful disconnect succeeded */
- rv = conn_request_state(tconn, NS(conn, C_DISCONNECTING), CS_VERBOSE);
+ rv = conn_request_state(connection, NS(conn, C_DISCONNECTING), CS_VERBOSE);
break;
case SS_CW_FAILED_BY_PEER:
/* The peer probably wants to see us outdated. */
- rv = conn_request_state(tconn, NS2(conn, C_DISCONNECTING,
+ rv = conn_request_state(connection, NS2(conn, C_DISCONNECTING,
disk, D_OUTDATED), 0);
if (rv == SS_IS_DISKLESS || rv == SS_LOWER_THAN_OUTDATED) {
- rv = conn_request_state(tconn, NS(conn, C_DISCONNECTING),
+ rv = conn_request_state(connection, NS(conn, C_DISCONNECTING),
CS_HARD);
}
break;
* The state handling only uses drbd_thread_stop_nowait(),
* we want to really wait here until the receiver is no more.
*/
- drbd_thread_stop(&adm_ctx.tconn->receiver);
+ drbd_thread_stop(&connection->receiver);
/* Race breaker. This additional state change request may be
* necessary, if this was a forced disconnect during a receiver
* after drbdd_init() returned. Typically, we should be
* C_STANDALONE already, now, and this becomes a no-op.
*/
- rv2 = conn_request_state(tconn, NS(conn, C_STANDALONE),
+ rv2 = conn_request_state(connection, NS(conn, C_STANDALONE),
CS_VERBOSE | CS_HARD);
if (rv2 < SS_SUCCESS)
- conn_err(tconn,
+ drbd_err(connection,
"unexpected rv2=%d in conn_try_disconnect()\n",
rv2);
}
int drbd_adm_disconnect(struct sk_buff *skb, struct genl_info *info)
{
struct disconnect_parms parms;
- struct drbd_tconn *tconn;
+ struct drbd_connection *connection;
enum drbd_state_rv rv;
enum drbd_ret_code retcode;
int err;
if (retcode != NO_ERROR)
goto fail;
- tconn = adm_ctx.tconn;
+ connection = adm_ctx.connection;
memset(&parms, 0, sizeof(parms));
if (info->attrs[DRBD_NLA_DISCONNECT_PARMS]) {
err = disconnect_parms_from_attrs(&parms, info);
}
}
- rv = conn_try_disconnect(tconn, parms.force_disconnect);
+ rv = conn_try_disconnect(connection, parms.force_disconnect);
if (rv < SS_SUCCESS)
retcode = rv; /* FIXME: Type mismatch. */
else
return 0;
}
-void resync_after_online_grow(struct drbd_conf *mdev)
+void resync_after_online_grow(struct drbd_device *device)
{
int iass; /* I am sync source */
- dev_info(DEV, "Resync of new storage after online grow\n");
- if (mdev->state.role != mdev->state.peer)
- iass = (mdev->state.role == R_PRIMARY);
+ drbd_info(device, "Resync of new storage after online grow\n");
+ if (device->state.role != device->state.peer)
+ iass = (device->state.role == R_PRIMARY);
else
- iass = test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags);
+ iass = test_bit(RESOLVE_CONFLICTS, &first_peer_device(device)->connection->flags);
if (iass)
- drbd_start_resync(mdev, C_SYNC_SOURCE);
+ drbd_start_resync(device, C_SYNC_SOURCE);
else
- _drbd_request_state(mdev, NS(conn, C_WF_SYNC_UUID), CS_VERBOSE + CS_SERIALIZE);
+ _drbd_request_state(device, NS(conn, C_WF_SYNC_UUID), CS_VERBOSE + CS_SERIALIZE);
}
int drbd_adm_resize(struct sk_buff *skb, struct genl_info *info)
{
struct disk_conf *old_disk_conf, *new_disk_conf = NULL;
struct resize_parms rs;
- struct drbd_conf *mdev;
+ struct drbd_device *device;
enum drbd_ret_code retcode;
enum determine_dev_size dd;
bool change_al_layout = false;
if (retcode != NO_ERROR)
goto fail;
- mdev = adm_ctx.mdev;
- if (!get_ldev(mdev)) {
+ device = adm_ctx.device;
+ if (!get_ldev(device)) {
retcode = ERR_NO_DISK;
goto fail;
}
memset(&rs, 0, sizeof(struct resize_parms));
- rs.al_stripes = mdev->ldev->md.al_stripes;
- rs.al_stripe_size = mdev->ldev->md.al_stripe_size_4k * 4;
+ rs.al_stripes = device->ldev->md.al_stripes;
+ rs.al_stripe_size = device->ldev->md.al_stripe_size_4k * 4;
if (info->attrs[DRBD_NLA_RESIZE_PARMS]) {
err = resize_parms_from_attrs(&rs, info);
if (err) {
}
}
- if (mdev->state.conn > C_CONNECTED) {
+ if (device->state.conn > C_CONNECTED) {
retcode = ERR_RESIZE_RESYNC;
goto fail_ldev;
}
- if (mdev->state.role == R_SECONDARY &&
- mdev->state.peer == R_SECONDARY) {
+ if (device->state.role == R_SECONDARY &&
+ device->state.peer == R_SECONDARY) {
retcode = ERR_NO_PRIMARY;
goto fail_ldev;
}
- if (rs.no_resync && mdev->tconn->agreed_pro_version < 93) {
+ if (rs.no_resync && first_peer_device(device)->connection->agreed_pro_version < 93) {
retcode = ERR_NEED_APV_93;
goto fail_ldev;
}
rcu_read_lock();
- u_size = rcu_dereference(mdev->ldev->disk_conf)->disk_size;
+ u_size = rcu_dereference(device->ldev->disk_conf)->disk_size;
rcu_read_unlock();
if (u_size != (sector_t)rs.resize_size) {
new_disk_conf = kmalloc(sizeof(struct disk_conf), GFP_KERNEL);
}
}
- if (mdev->ldev->md.al_stripes != rs.al_stripes ||
- mdev->ldev->md.al_stripe_size_4k != rs.al_stripe_size / 4) {
+ if (device->ldev->md.al_stripes != rs.al_stripes ||
+ device->ldev->md.al_stripe_size_4k != rs.al_stripe_size / 4) {
u32 al_size_k = rs.al_stripes * rs.al_stripe_size;
if (al_size_k > (16 * 1024 * 1024)) {
goto fail_ldev;
}
- if (mdev->state.conn != C_CONNECTED) {
+ if (device->state.conn != C_CONNECTED) {
retcode = ERR_MD_LAYOUT_CONNECTED;
goto fail_ldev;
}
change_al_layout = true;
}
- if (mdev->ldev->known_size != drbd_get_capacity(mdev->ldev->backing_bdev))
- mdev->ldev->known_size = drbd_get_capacity(mdev->ldev->backing_bdev);
+ if (device->ldev->known_size != drbd_get_capacity(device->ldev->backing_bdev))
+ device->ldev->known_size = drbd_get_capacity(device->ldev->backing_bdev);
if (new_disk_conf) {
- mutex_lock(&mdev->tconn->conf_update);
- old_disk_conf = mdev->ldev->disk_conf;
+ mutex_lock(&first_peer_device(device)->connection->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(mdev->ldev->disk_conf, new_disk_conf);
- mutex_unlock(&mdev->tconn->conf_update);
+ rcu_assign_pointer(device->ldev->disk_conf, new_disk_conf);
+ mutex_unlock(&first_peer_device(device)->connection->conf_update);
synchronize_rcu();
kfree(old_disk_conf);
}
ddsf = (rs.resize_force ? DDSF_FORCED : 0) | (rs.no_resync ? DDSF_NO_RESYNC : 0);
- dd = drbd_determine_dev_size(mdev, ddsf, change_al_layout ? &rs : NULL);
- drbd_md_sync(mdev);
- put_ldev(mdev);
+ dd = drbd_determine_dev_size(device, ddsf, change_al_layout ? &rs : NULL);
+ drbd_md_sync(device);
+ put_ldev(device);
if (dd == DS_ERROR) {
retcode = ERR_NOMEM_BITMAP;
goto fail;
goto fail;
}
- if (mdev->state.conn == C_CONNECTED) {
+ if (device->state.conn == C_CONNECTED) {
if (dd == DS_GREW)
- set_bit(RESIZE_PENDING, &mdev->flags);
+ set_bit(RESIZE_PENDING, &device->flags);
- drbd_send_uuids(mdev);
- drbd_send_sizes(mdev, 1, ddsf);
+ drbd_send_uuids(device);
+ drbd_send_sizes(device, 1, ddsf);
}
fail:
return 0;
fail_ldev:
- put_ldev(mdev);
+ put_ldev(device);
goto fail;
}
int drbd_adm_resource_opts(struct sk_buff *skb, struct genl_info *info)
{
enum drbd_ret_code retcode;
- struct drbd_tconn *tconn;
struct res_opts res_opts;
int err;
return retcode;
if (retcode != NO_ERROR)
goto fail;
- tconn = adm_ctx.tconn;
- res_opts = tconn->res_opts;
+ res_opts = adm_ctx.resource->res_opts;
if (should_set_defaults(info))
set_res_opts_defaults(&res_opts);
goto fail;
}
- err = set_resource_options(tconn, &res_opts);
+ err = set_resource_options(adm_ctx.resource, &res_opts);
if (err) {
retcode = ERR_INVALID_REQUEST;
if (err == -ENOMEM)
int drbd_adm_invalidate(struct sk_buff *skb, struct genl_info *info)
{
- struct drbd_conf *mdev;
+ struct drbd_device *device;
int retcode; /* enum drbd_ret_code rsp. enum drbd_state_rv */
retcode = drbd_adm_prepare(skb, info, DRBD_ADM_NEED_MINOR);
if (retcode != NO_ERROR)
goto out;
- mdev = adm_ctx.mdev;
+ device = adm_ctx.device;
/* If there is still bitmap IO pending, probably because of a previous
* resync just being finished, wait for it before requesting a new resync.
* Also wait for it's after_state_ch(). */
- drbd_suspend_io(mdev);
- wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
- drbd_flush_workqueue(mdev);
+ drbd_suspend_io(device);
+ wait_event(device->misc_wait, !test_bit(BITMAP_IO, &device->flags));
+ drbd_flush_workqueue(device);
/* If we happen to be C_STANDALONE R_SECONDARY, just change to
* D_INCONSISTENT, and set all bits in the bitmap. Otherwise,
* try to start a resync handshake as sync target for full sync.
*/
- if (mdev->state.conn == C_STANDALONE && mdev->state.role == R_SECONDARY) {
- retcode = drbd_request_state(mdev, NS(disk, D_INCONSISTENT));
+ if (device->state.conn == C_STANDALONE && device->state.role == R_SECONDARY) {
+ retcode = drbd_request_state(device, NS(disk, D_INCONSISTENT));
if (retcode >= SS_SUCCESS) {
- if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write,
+ if (drbd_bitmap_io(device, &drbd_bmio_set_n_write,
"set_n_write from invalidate", BM_LOCKED_MASK))
retcode = ERR_IO_MD_DISK;
}
} else
- retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T));
- drbd_resume_io(mdev);
+ retcode = drbd_request_state(device, NS(conn, C_STARTING_SYNC_T));
+ drbd_resume_io(device);
out:
drbd_adm_finish(info, retcode);
if (retcode != NO_ERROR)
goto out;
- retcode = drbd_request_state(adm_ctx.mdev, mask, val);
+ retcode = drbd_request_state(adm_ctx.device, mask, val);
out:
drbd_adm_finish(info, retcode);
return 0;
}
-static int drbd_bmio_set_susp_al(struct drbd_conf *mdev)
+static int drbd_bmio_set_susp_al(struct drbd_device *device)
{
int rv;
- rv = drbd_bmio_set_n_write(mdev);
- drbd_suspend_al(mdev);
+ rv = drbd_bmio_set_n_write(device);
+ drbd_suspend_al(device);
return rv;
}
int drbd_adm_invalidate_peer(struct sk_buff *skb, struct genl_info *info)
{
int retcode; /* drbd_ret_code, drbd_state_rv */
- struct drbd_conf *mdev;
+ struct drbd_device *device;
retcode = drbd_adm_prepare(skb, info, DRBD_ADM_NEED_MINOR);
if (!adm_ctx.reply_skb)
if (retcode != NO_ERROR)
goto out;
- mdev = adm_ctx.mdev;
+ device = adm_ctx.device;
/* If there is still bitmap IO pending, probably because of a previous
* resync just being finished, wait for it before requesting a new resync.
* Also wait for it's after_state_ch(). */
- drbd_suspend_io(mdev);
- wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
- drbd_flush_workqueue(mdev);
+ drbd_suspend_io(device);
+ wait_event(device->misc_wait, !test_bit(BITMAP_IO, &device->flags));
+ drbd_flush_workqueue(device);
/* If we happen to be C_STANDALONE R_PRIMARY, just set all bits
* in the bitmap. Otherwise, try to start a resync handshake
* as sync source for full sync.
*/
- if (mdev->state.conn == C_STANDALONE && mdev->state.role == R_PRIMARY) {
+ if (device->state.conn == C_STANDALONE && device->state.role == R_PRIMARY) {
/* The peer will get a resync upon connect anyways. Just make that
into a full resync. */
- retcode = drbd_request_state(mdev, NS(pdsk, D_INCONSISTENT));
+ retcode = drbd_request_state(device, NS(pdsk, D_INCONSISTENT));
if (retcode >= SS_SUCCESS) {
- if (drbd_bitmap_io(mdev, &drbd_bmio_set_susp_al,
+ if (drbd_bitmap_io(device, &drbd_bmio_set_susp_al,
"set_n_write from invalidate_peer",
BM_LOCKED_SET_ALLOWED))
retcode = ERR_IO_MD_DISK;
}
} else
- retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S));
- drbd_resume_io(mdev);
+ retcode = drbd_request_state(device, NS(conn, C_STARTING_SYNC_S));
+ drbd_resume_io(device);
out:
drbd_adm_finish(info, retcode);
if (retcode != NO_ERROR)
goto out;
- if (drbd_request_state(adm_ctx.mdev, NS(user_isp, 1)) == SS_NOTHING_TO_DO)
+ if (drbd_request_state(adm_ctx.device, NS(user_isp, 1)) == SS_NOTHING_TO_DO)
retcode = ERR_PAUSE_IS_SET;
out:
drbd_adm_finish(info, retcode);
if (retcode != NO_ERROR)
goto out;
- if (drbd_request_state(adm_ctx.mdev, NS(user_isp, 0)) == SS_NOTHING_TO_DO) {
- s = adm_ctx.mdev->state;
+ if (drbd_request_state(adm_ctx.device, NS(user_isp, 0)) == SS_NOTHING_TO_DO) {
+ s = adm_ctx.device->state;
if (s.conn == C_PAUSED_SYNC_S || s.conn == C_PAUSED_SYNC_T) {
retcode = s.aftr_isp ? ERR_PIC_AFTER_DEP :
s.peer_isp ? ERR_PIC_PEER_DEP : ERR_PAUSE_IS_CLEAR;
int drbd_adm_resume_io(struct sk_buff *skb, struct genl_info *info)
{
- struct drbd_conf *mdev;
+ struct drbd_device *device;
int retcode; /* enum drbd_ret_code rsp. enum drbd_state_rv */
retcode = drbd_adm_prepare(skb, info, DRBD_ADM_NEED_MINOR);
if (retcode != NO_ERROR)
goto out;
- mdev = adm_ctx.mdev;
- if (test_bit(NEW_CUR_UUID, &mdev->flags)) {
- drbd_uuid_new_current(mdev);
- clear_bit(NEW_CUR_UUID, &mdev->flags);
+ device = adm_ctx.device;
+ if (test_bit(NEW_CUR_UUID, &device->flags)) {
+ drbd_uuid_new_current(device);
+ clear_bit(NEW_CUR_UUID, &device->flags);
}
- drbd_suspend_io(mdev);
- retcode = drbd_request_state(mdev, NS3(susp, 0, susp_nod, 0, susp_fen, 0));
+ drbd_suspend_io(device);
+ retcode = drbd_request_state(device, NS3(susp, 0, susp_nod, 0, susp_fen, 0));
if (retcode == SS_SUCCESS) {
- if (mdev->state.conn < C_CONNECTED)
- tl_clear(mdev->tconn);
- if (mdev->state.disk == D_DISKLESS || mdev->state.disk == D_FAILED)
- tl_restart(mdev->tconn, FAIL_FROZEN_DISK_IO);
+ if (device->state.conn < C_CONNECTED)
+ tl_clear(first_peer_device(device)->connection);
+ if (device->state.disk == D_DISKLESS || device->state.disk == D_FAILED)
+ tl_restart(first_peer_device(device)->connection, FAIL_FROZEN_DISK_IO);
}
- drbd_resume_io(mdev);
+ drbd_resume_io(device);
out:
drbd_adm_finish(info, retcode);
return drbd_adm_simple_request_state(skb, info, NS(disk, D_OUTDATED));
}
-int nla_put_drbd_cfg_context(struct sk_buff *skb, struct drbd_tconn *tconn, unsigned vnr)
+static int nla_put_drbd_cfg_context(struct sk_buff *skb,
+ struct drbd_resource *resource,
+ struct drbd_connection *connection,
+ struct drbd_device *device)
{
struct nlattr *nla;
nla = nla_nest_start(skb, DRBD_NLA_CFG_CONTEXT);
if (!nla)
goto nla_put_failure;
- if (vnr != VOLUME_UNSPECIFIED &&
- nla_put_u32(skb, T_ctx_volume, vnr))
- goto nla_put_failure;
- if (nla_put_string(skb, T_ctx_resource_name, tconn->name))
+ if (device &&
+ nla_put_u32(skb, T_ctx_volume, device->vnr))
goto nla_put_failure;
- if (tconn->my_addr_len &&
- nla_put(skb, T_ctx_my_addr, tconn->my_addr_len, &tconn->my_addr))
- goto nla_put_failure;
- if (tconn->peer_addr_len &&
- nla_put(skb, T_ctx_peer_addr, tconn->peer_addr_len, &tconn->peer_addr))
+ if (nla_put_string(skb, T_ctx_resource_name, connection->resource->name))
goto nla_put_failure;
+ if (connection) {
+ if (connection->my_addr_len &&
+ nla_put(skb, T_ctx_my_addr, connection->my_addr_len, &connection->my_addr))
+ goto nla_put_failure;
+ if (connection->peer_addr_len &&
+ nla_put(skb, T_ctx_peer_addr, connection->peer_addr_len, &connection->peer_addr))
+ goto nla_put_failure;
+ }
nla_nest_end(skb, nla);
return 0;
return -EMSGSIZE;
}
-int nla_put_status_info(struct sk_buff *skb, struct drbd_conf *mdev,
+/*
+ * Return the connection of @resource if @resource has exactly one connection.
+ */
+static struct drbd_connection *the_only_connection(struct drbd_resource *resource)
+{
+ struct list_head *connections = &resource->connections;
+
+ if (list_empty(connections) || connections->next->next != connections)
+ return NULL;
+ return list_first_entry(&resource->connections, struct drbd_connection, connections);
+}
+
+int nla_put_status_info(struct sk_buff *skb, struct drbd_device *device,
const struct sib_info *sib)
{
+ struct drbd_resource *resource = device->resource;
struct state_info *si = NULL; /* for sizeof(si->member); */
struct nlattr *nla;
int got_ldev;
* always in the context of the receiving process */
exclude_sensitive = sib || !capable(CAP_SYS_ADMIN);
- got_ldev = get_ldev(mdev);
+ got_ldev = get_ldev(device);
/* We need to add connection name and volume number information still.
* Minor number is in drbd_genlmsghdr. */
- if (nla_put_drbd_cfg_context(skb, mdev->tconn, mdev->vnr))
+ if (nla_put_drbd_cfg_context(skb, resource, the_only_connection(resource), device))
goto nla_put_failure;
- if (res_opts_to_skb(skb, &mdev->tconn->res_opts, exclude_sensitive))
+ if (res_opts_to_skb(skb, &device->resource->res_opts, exclude_sensitive))
goto nla_put_failure;
rcu_read_lock();
if (got_ldev) {
struct disk_conf *disk_conf;
- disk_conf = rcu_dereference(mdev->ldev->disk_conf);
+ disk_conf = rcu_dereference(device->ldev->disk_conf);
err = disk_conf_to_skb(skb, disk_conf, exclude_sensitive);
}
if (!err) {
struct net_conf *nc;
- nc = rcu_dereference(mdev->tconn->net_conf);
+ nc = rcu_dereference(first_peer_device(device)->connection->net_conf);
if (nc)
err = net_conf_to_skb(skb, nc, exclude_sensitive);
}
if (!nla)
goto nla_put_failure;
if (nla_put_u32(skb, T_sib_reason, sib ? sib->sib_reason : SIB_GET_STATUS_REPLY) ||
- nla_put_u32(skb, T_current_state, mdev->state.i) ||
- nla_put_u64(skb, T_ed_uuid, mdev->ed_uuid) ||
- nla_put_u64(skb, T_capacity, drbd_get_capacity(mdev->this_bdev)) ||
- nla_put_u64(skb, T_send_cnt, mdev->send_cnt) ||
- nla_put_u64(skb, T_recv_cnt, mdev->recv_cnt) ||
- nla_put_u64(skb, T_read_cnt, mdev->read_cnt) ||
- nla_put_u64(skb, T_writ_cnt, mdev->writ_cnt) ||
- nla_put_u64(skb, T_al_writ_cnt, mdev->al_writ_cnt) ||
- nla_put_u64(skb, T_bm_writ_cnt, mdev->bm_writ_cnt) ||
- nla_put_u32(skb, T_ap_bio_cnt, atomic_read(&mdev->ap_bio_cnt)) ||
- nla_put_u32(skb, T_ap_pending_cnt, atomic_read(&mdev->ap_pending_cnt)) ||
- nla_put_u32(skb, T_rs_pending_cnt, atomic_read(&mdev->rs_pending_cnt)))
+ nla_put_u32(skb, T_current_state, device->state.i) ||
+ nla_put_u64(skb, T_ed_uuid, device->ed_uuid) ||
+ nla_put_u64(skb, T_capacity, drbd_get_capacity(device->this_bdev)) ||
+ nla_put_u64(skb, T_send_cnt, device->send_cnt) ||
+ nla_put_u64(skb, T_recv_cnt, device->recv_cnt) ||
+ nla_put_u64(skb, T_read_cnt, device->read_cnt) ||
+ nla_put_u64(skb, T_writ_cnt, device->writ_cnt) ||
+ nla_put_u64(skb, T_al_writ_cnt, device->al_writ_cnt) ||
+ nla_put_u64(skb, T_bm_writ_cnt, device->bm_writ_cnt) ||
+ nla_put_u32(skb, T_ap_bio_cnt, atomic_read(&device->ap_bio_cnt)) ||
+ nla_put_u32(skb, T_ap_pending_cnt, atomic_read(&device->ap_pending_cnt)) ||
+ nla_put_u32(skb, T_rs_pending_cnt, atomic_read(&device->rs_pending_cnt)))
goto nla_put_failure;
if (got_ldev) {
int err;
- spin_lock_irq(&mdev->ldev->md.uuid_lock);
- err = nla_put(skb, T_uuids, sizeof(si->uuids), mdev->ldev->md.uuid);
- spin_unlock_irq(&mdev->ldev->md.uuid_lock);
+ spin_lock_irq(&device->ldev->md.uuid_lock);
+ err = nla_put(skb, T_uuids, sizeof(si->uuids), device->ldev->md.uuid);
+ spin_unlock_irq(&device->ldev->md.uuid_lock);
if (err)
goto nla_put_failure;
- if (nla_put_u32(skb, T_disk_flags, mdev->ldev->md.flags) ||
- nla_put_u64(skb, T_bits_total, drbd_bm_bits(mdev)) ||
- nla_put_u64(skb, T_bits_oos, drbd_bm_total_weight(mdev)))
+ if (nla_put_u32(skb, T_disk_flags, device->ldev->md.flags) ||
+ nla_put_u64(skb, T_bits_total, drbd_bm_bits(device)) ||
+ nla_put_u64(skb, T_bits_oos, drbd_bm_total_weight(device)))
goto nla_put_failure;
- if (C_SYNC_SOURCE <= mdev->state.conn &&
- C_PAUSED_SYNC_T >= mdev->state.conn) {
- if (nla_put_u64(skb, T_bits_rs_total, mdev->rs_total) ||
- nla_put_u64(skb, T_bits_rs_failed, mdev->rs_failed))
+ if (C_SYNC_SOURCE <= device->state.conn &&
+ C_PAUSED_SYNC_T >= device->state.conn) {
+ if (nla_put_u64(skb, T_bits_rs_total, device->rs_total) ||
+ nla_put_u64(skb, T_bits_rs_failed, device->rs_failed))
goto nla_put_failure;
}
}
nla_put_failure:
err = -EMSGSIZE;
if (got_ldev)
- put_ldev(mdev);
+ put_ldev(device);
return err;
}
if (retcode != NO_ERROR)
goto out;
- err = nla_put_status_info(adm_ctx.reply_skb, adm_ctx.mdev, NULL);
+ err = nla_put_status_info(adm_ctx.reply_skb, adm_ctx.device, NULL);
if (err) {
nlmsg_free(adm_ctx.reply_skb);
return err;
return 0;
}
-int get_one_status(struct sk_buff *skb, struct netlink_callback *cb)
+static int get_one_status(struct sk_buff *skb, struct netlink_callback *cb)
{
- struct drbd_conf *mdev;
+ struct drbd_device *device;
struct drbd_genlmsghdr *dh;
- struct drbd_tconn *pos = (struct drbd_tconn*)cb->args[0];
- struct drbd_tconn *tconn = NULL;
- struct drbd_tconn *tmp;
+ struct drbd_resource *pos = (struct drbd_resource *)cb->args[0];
+ struct drbd_resource *resource = NULL;
+ struct drbd_resource *tmp;
unsigned volume = cb->args[1];
/* Open coded, deferred, iteration:
- * list_for_each_entry_safe(tconn, tmp, &drbd_tconns, all_tconn) {
- * idr_for_each_entry(&tconn->volumes, mdev, i) {
+ * for_each_resource_safe(resource, tmp, &drbd_resources) {
+ * connection = "first connection of resource or undefined";
+ * idr_for_each_entry(&resource->devices, device, i) {
* ...
* }
* }
- * where tconn is cb->args[0];
+ * where resource is cb->args[0];
* and i is cb->args[1];
*
* cb->args[2] indicates if we shall loop over all resources,
* This may miss entries inserted after this dump started,
* or entries deleted before they are reached.
*
- * We need to make sure the mdev won't disappear while
+ * We need to make sure the device won't disappear while
* we are looking at it, and revalidate our iterators
* on each iteration.
*/
- /* synchronize with conn_create()/conn_destroy() */
+ /* synchronize with conn_create()/drbd_destroy_connection() */
rcu_read_lock();
/* revalidate iterator position */
- list_for_each_entry_rcu(tmp, &drbd_tconns, all_tconn) {
+ for_each_resource_rcu(tmp, &drbd_resources) {
if (pos == NULL) {
/* first iteration */
pos = tmp;
- tconn = pos;
+ resource = pos;
break;
}
if (tmp == pos) {
- tconn = pos;
+ resource = pos;
break;
}
}
- if (tconn) {
-next_tconn:
- mdev = idr_get_next(&tconn->volumes, &volume);
- if (!mdev) {
- /* No more volumes to dump on this tconn.
- * Advance tconn iterator. */
- pos = list_entry_rcu(tconn->all_tconn.next,
- struct drbd_tconn, all_tconn);
- /* Did we dump any volume on this tconn yet? */
+ if (resource) {
+next_resource:
+ device = idr_get_next(&resource->devices, &volume);
+ if (!device) {
+ /* No more volumes to dump on this resource.
+ * Advance resource iterator. */
+ pos = list_entry_rcu(resource->resources.next,
+ struct drbd_resource, resources);
+ /* Did we dump any volume of this resource yet? */
if (volume != 0) {
/* If we reached the end of the list,
* or only a single resource dump was requested,
* we are done. */
- if (&pos->all_tconn == &drbd_tconns || cb->args[2])
+ if (&pos->resources == &drbd_resources || cb->args[2])
goto out;
volume = 0;
- tconn = pos;
- goto next_tconn;
+ resource = pos;
+ goto next_resource;
}
}
if (!dh)
goto out;
- if (!mdev) {
- /* This is a tconn without a single volume.
+ if (!device) {
+ /* This is a connection without a single volume.
* Suprisingly enough, it may have a network
* configuration. */
- struct net_conf *nc;
+ struct drbd_connection *connection;
+
dh->minor = -1U;
dh->ret_code = NO_ERROR;
- if (nla_put_drbd_cfg_context(skb, tconn, VOLUME_UNSPECIFIED))
- goto cancel;
- nc = rcu_dereference(tconn->net_conf);
- if (nc && net_conf_to_skb(skb, nc, 1) != 0)
+ connection = the_only_connection(resource);
+ if (nla_put_drbd_cfg_context(skb, resource, connection, NULL))
goto cancel;
+ if (connection) {
+ struct net_conf *nc;
+
+ nc = rcu_dereference(connection->net_conf);
+ if (nc && net_conf_to_skb(skb, nc, 1) != 0)
+ goto cancel;
+ }
goto done;
}
- D_ASSERT(mdev->vnr == volume);
- D_ASSERT(mdev->tconn == tconn);
+ D_ASSERT(device, device->vnr == volume);
+ D_ASSERT(device, device->resource == resource);
- dh->minor = mdev_to_minor(mdev);
+ dh->minor = device_to_minor(device);
dh->ret_code = NO_ERROR;
- if (nla_put_status_info(skb, mdev, NULL)) {
+ if (nla_put_status_info(skb, device, NULL)) {
cancel:
genlmsg_cancel(skb, dh);
goto out;
}
done:
genlmsg_end(skb, dh);
- }
+ }
out:
rcu_read_unlock();
/* where to start the next iteration */
- cb->args[0] = (long)pos;
- cb->args[1] = (pos == tconn) ? volume + 1 : 0;
+ cb->args[0] = (long)pos;
+ cb->args[1] = (pos == resource) ? volume + 1 : 0;
- /* No more tconns/volumes/minors found results in an empty skb.
+ /* No more resources/volumes/minors found results in an empty skb.
* Which will terminate the dump. */
return skb->len;
}
const unsigned hdrlen = GENL_HDRLEN + GENL_MAGIC_FAMILY_HDRSZ;
struct nlattr *nla;
const char *resource_name;
- struct drbd_tconn *tconn;
+ struct drbd_resource *resource;
int maxtype;
/* Is this a followup call? */
if (!nla)
return -EINVAL;
resource_name = nla_data(nla);
- tconn = conn_get_by_name(resource_name);
-
- if (!tconn)
+ if (!*resource_name)
+ return -ENODEV;
+ resource = drbd_find_resource(resource_name);
+ if (!resource)
return -ENODEV;
- kref_put(&tconn->kref, &conn_destroy); /* get_one_status() (re)validates tconn by itself */
+ kref_put(&resource->kref, drbd_destroy_resource); /* get_one_status() revalidates the resource */
/* prime iterators, and set "filter" mode mark:
- * only dump this tconn. */
- cb->args[0] = (long)tconn;
+ * only dump this connection. */
+ cb->args[0] = (long)resource;
/* cb->args[1] = 0; passed in this way. */
- cb->args[2] = (long)tconn;
+ cb->args[2] = (long)resource;
dump:
return get_one_status(skb, cb);
goto out;
tp.timeout_type =
- adm_ctx.mdev->state.pdsk == D_OUTDATED ? UT_PEER_OUTDATED :
- test_bit(USE_DEGR_WFC_T, &adm_ctx.mdev->flags) ? UT_DEGRADED :
+ adm_ctx.device->state.pdsk == D_OUTDATED ? UT_PEER_OUTDATED :
+ test_bit(USE_DEGR_WFC_T, &adm_ctx.device->flags) ? UT_DEGRADED :
UT_DEFAULT;
err = timeout_parms_to_priv_skb(adm_ctx.reply_skb, &tp);
int drbd_adm_start_ov(struct sk_buff *skb, struct genl_info *info)
{
- struct drbd_conf *mdev;
+ struct drbd_device *device;
enum drbd_ret_code retcode;
struct start_ov_parms parms;
if (retcode != NO_ERROR)
goto out;
- mdev = adm_ctx.mdev;
+ device = adm_ctx.device;
/* resume from last known position, if possible */
- parms.ov_start_sector = mdev->ov_start_sector;
+ parms.ov_start_sector = device->ov_start_sector;
parms.ov_stop_sector = ULLONG_MAX;
if (info->attrs[DRBD_NLA_START_OV_PARMS]) {
int err = start_ov_parms_from_attrs(&parms, info);
}
}
/* w_make_ov_request expects position to be aligned */
- mdev->ov_start_sector = parms.ov_start_sector & ~(BM_SECT_PER_BIT-1);
- mdev->ov_stop_sector = parms.ov_stop_sector;
+ device->ov_start_sector = parms.ov_start_sector & ~(BM_SECT_PER_BIT-1);
+ device->ov_stop_sector = parms.ov_stop_sector;
/* If there is still bitmap IO pending, e.g. previous resync or verify
* just being finished, wait for it before requesting a new resync. */
- drbd_suspend_io(mdev);
- wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
- retcode = drbd_request_state(mdev,NS(conn,C_VERIFY_S));
- drbd_resume_io(mdev);
+ drbd_suspend_io(device);
+ wait_event(device->misc_wait, !test_bit(BITMAP_IO, &device->flags));
+ retcode = drbd_request_state(device, NS(conn, C_VERIFY_S));
+ drbd_resume_io(device);
out:
drbd_adm_finish(info, retcode);
return 0;
int drbd_adm_new_c_uuid(struct sk_buff *skb, struct genl_info *info)
{
- struct drbd_conf *mdev;
+ struct drbd_device *device;
enum drbd_ret_code retcode;
int skip_initial_sync = 0;
int err;
if (retcode != NO_ERROR)
goto out_nolock;
- mdev = adm_ctx.mdev;
+ device = adm_ctx.device;
memset(&args, 0, sizeof(args));
if (info->attrs[DRBD_NLA_NEW_C_UUID_PARMS]) {
err = new_c_uuid_parms_from_attrs(&args, info);
}
}
- mutex_lock(mdev->state_mutex); /* Protects us against serialized state changes. */
+ mutex_lock(device->state_mutex); /* Protects us against serialized state changes. */
- if (!get_ldev(mdev)) {
+ if (!get_ldev(device)) {
retcode = ERR_NO_DISK;
goto out;
}
/* this is "skip initial sync", assume to be clean */
- if (mdev->state.conn == C_CONNECTED && mdev->tconn->agreed_pro_version >= 90 &&
- mdev->ldev->md.uuid[UI_CURRENT] == UUID_JUST_CREATED && args.clear_bm) {
- dev_info(DEV, "Preparing to skip initial sync\n");
+ if (device->state.conn == C_CONNECTED &&
+ first_peer_device(device)->connection->agreed_pro_version >= 90 &&
+ device->ldev->md.uuid[UI_CURRENT] == UUID_JUST_CREATED && args.clear_bm) {
+ drbd_info(device, "Preparing to skip initial sync\n");
skip_initial_sync = 1;
- } else if (mdev->state.conn != C_STANDALONE) {
+ } else if (device->state.conn != C_STANDALONE) {
retcode = ERR_CONNECTED;
goto out_dec;
}
- drbd_uuid_set(mdev, UI_BITMAP, 0); /* Rotate UI_BITMAP to History 1, etc... */
- drbd_uuid_new_current(mdev); /* New current, previous to UI_BITMAP */
+ drbd_uuid_set(device, UI_BITMAP, 0); /* Rotate UI_BITMAP to History 1, etc... */
+ drbd_uuid_new_current(device); /* New current, previous to UI_BITMAP */
if (args.clear_bm) {
- err = drbd_bitmap_io(mdev, &drbd_bmio_clear_n_write,
+ err = drbd_bitmap_io(device, &drbd_bmio_clear_n_write,
"clear_n_write from new_c_uuid", BM_LOCKED_MASK);
if (err) {
- dev_err(DEV, "Writing bitmap failed with %d\n",err);
+ drbd_err(device, "Writing bitmap failed with %d\n", err);
retcode = ERR_IO_MD_DISK;
}
if (skip_initial_sync) {
- drbd_send_uuids_skip_initial_sync(mdev);
- _drbd_uuid_set(mdev, UI_BITMAP, 0);
- drbd_print_uuids(mdev, "cleared bitmap UUID");
- spin_lock_irq(&mdev->tconn->req_lock);
- _drbd_set_state(_NS2(mdev, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE),
+ 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);
+ _drbd_set_state(_NS2(device, disk, D_UP_TO_DATE, pdsk, D_UP_TO_DATE),
CS_VERBOSE, NULL);
- spin_unlock_irq(&mdev->tconn->req_lock);
+ spin_unlock_irq(&first_peer_device(device)->connection->req_lock);
}
}
- drbd_md_sync(mdev);
+ drbd_md_sync(device);
out_dec:
- put_ldev(mdev);
+ put_ldev(device);
out:
- mutex_unlock(mdev->state_mutex);
+ mutex_unlock(device->state_mutex);
out_nolock:
drbd_adm_finish(info, retcode);
return 0;
if (retcode != NO_ERROR)
goto out;
- if (adm_ctx.tconn) {
+ if (adm_ctx.connection) {
if (info->nlhdr->nlmsg_flags & NLM_F_EXCL) {
retcode = ERR_INVALID_REQUEST;
drbd_msg_put_info("resource exists");
return 0;
}
-int drbd_adm_add_minor(struct sk_buff *skb, struct genl_info *info)
+int drbd_adm_new_minor(struct sk_buff *skb, struct genl_info *info)
{
struct drbd_genlmsghdr *dh = info->userhdr;
enum drbd_ret_code retcode;
}
/* drbd_adm_prepare made sure already
- * that mdev->tconn and mdev->vnr match the request. */
- if (adm_ctx.mdev) {
+ * that first_peer_device(device)->connection and device->vnr match the request. */
+ if (adm_ctx.device) {
if (info->nlhdr->nlmsg_flags & NLM_F_EXCL)
retcode = ERR_MINOR_EXISTS;
/* else: still NO_ERROR */
goto out;
}
- retcode = conn_new_minor(adm_ctx.tconn, dh->minor, adm_ctx.volume);
+ retcode = drbd_create_device(adm_ctx.connection, dh->minor, adm_ctx.volume);
out:
drbd_adm_finish(info, retcode);
return 0;
}
-static enum drbd_ret_code adm_delete_minor(struct drbd_conf *mdev)
+static enum drbd_ret_code adm_del_minor(struct drbd_device *device)
{
- if (mdev->state.disk == D_DISKLESS &&
- /* no need to be mdev->state.conn == C_STANDALONE &&
+ if (device->state.disk == D_DISKLESS &&
+ /* no need to be device->state.conn == C_STANDALONE &&
* we may want to delete a minor from a live replication group.
*/
- mdev->state.role == R_SECONDARY) {
- _drbd_request_state(mdev, NS(conn, C_WF_REPORT_PARAMS),
+ device->state.role == R_SECONDARY) {
+ _drbd_request_state(device, NS(conn, C_WF_REPORT_PARAMS),
CS_VERBOSE + CS_WAIT_COMPLETE);
- idr_remove(&mdev->tconn->volumes, mdev->vnr);
- idr_remove(&minors, mdev_to_minor(mdev));
- destroy_workqueue(mdev->submit.wq);
- del_gendisk(mdev->vdisk);
- synchronize_rcu();
- kref_put(&mdev->kref, &drbd_minor_destroy);
+ drbd_delete_device(device);
return NO_ERROR;
} else
return ERR_MINOR_CONFIGURED;
}
-int drbd_adm_delete_minor(struct sk_buff *skb, struct genl_info *info)
+int drbd_adm_del_minor(struct sk_buff *skb, struct genl_info *info)
{
enum drbd_ret_code retcode;
if (retcode != NO_ERROR)
goto out;
- retcode = adm_delete_minor(adm_ctx.mdev);
+ retcode = adm_del_minor(adm_ctx.device);
out:
drbd_adm_finish(info, retcode);
return 0;
int drbd_adm_down(struct sk_buff *skb, struct genl_info *info)
{
int retcode; /* enum drbd_ret_code rsp. enum drbd_state_rv */
- struct drbd_conf *mdev;
+ struct drbd_peer_device *peer_device;
unsigned i;
- retcode = drbd_adm_prepare(skb, info, 0);
+ retcode = drbd_adm_prepare(skb, info, DRBD_ADM_NEED_RESOURCE);
if (!adm_ctx.reply_skb)
return retcode;
if (retcode != NO_ERROR)
goto out;
- if (!adm_ctx.tconn) {
- retcode = ERR_RES_NOT_KNOWN;
- goto out;
- }
-
/* demote */
- idr_for_each_entry(&adm_ctx.tconn->volumes, mdev, i) {
- retcode = drbd_set_role(mdev, R_SECONDARY, 0);
+ idr_for_each_entry(&adm_ctx.connection->peer_devices, peer_device, i) {
+ retcode = drbd_set_role(peer_device->device, R_SECONDARY, 0);
if (retcode < SS_SUCCESS) {
drbd_msg_put_info("failed to demote");
goto out;
}
}
- retcode = conn_try_disconnect(adm_ctx.tconn, 0);
+ retcode = conn_try_disconnect(adm_ctx.connection, 0);
if (retcode < SS_SUCCESS) {
drbd_msg_put_info("failed to disconnect");
goto out;
}
/* detach */
- idr_for_each_entry(&adm_ctx.tconn->volumes, mdev, i) {
- retcode = adm_detach(mdev, 0);
+ idr_for_each_entry(&adm_ctx.connection->peer_devices, peer_device, i) {
+ retcode = adm_detach(peer_device->device, 0);
if (retcode < SS_SUCCESS || retcode > NO_ERROR) {
drbd_msg_put_info("failed to detach");
goto out;
}
}
- /* If we reach this, all volumes (of this tconn) are Secondary,
+ /* If we reach this, all volumes (of this connection) are Secondary,
* Disconnected, Diskless, aka Unconfigured. Make sure all threads have
* actually stopped, state handling only does drbd_thread_stop_nowait(). */
- drbd_thread_stop(&adm_ctx.tconn->worker);
+ drbd_thread_stop(&adm_ctx.connection->worker);
/* Now, nothing can fail anymore */
/* delete volumes */
- idr_for_each_entry(&adm_ctx.tconn->volumes, mdev, i) {
- retcode = adm_delete_minor(mdev);
+ idr_for_each_entry(&adm_ctx.connection->peer_devices, peer_device, i) {
+ retcode = adm_del_minor(peer_device->device);
if (retcode != NO_ERROR) {
/* "can not happen" */
drbd_msg_put_info("failed to delete volume");
}
/* delete connection */
- if (conn_lowest_minor(adm_ctx.tconn) < 0) {
- list_del_rcu(&adm_ctx.tconn->all_tconn);
+ if (conn_lowest_minor(adm_ctx.connection) < 0) {
+ struct drbd_resource *resource = adm_ctx.connection->resource;
+
+ list_del_rcu(&resource->resources);
synchronize_rcu();
- kref_put(&adm_ctx.tconn->kref, &conn_destroy);
+ drbd_free_resource(resource);
retcode = NO_ERROR;
} else {
int drbd_adm_del_resource(struct sk_buff *skb, struct genl_info *info)
{
+ struct drbd_resource *resource;
+ struct drbd_connection *connection;
enum drbd_ret_code retcode;
retcode = drbd_adm_prepare(skb, info, DRBD_ADM_NEED_RESOURCE);
if (retcode != NO_ERROR)
goto out;
- if (conn_lowest_minor(adm_ctx.tconn) < 0) {
- list_del_rcu(&adm_ctx.tconn->all_tconn);
- synchronize_rcu();
- kref_put(&adm_ctx.tconn->kref, &conn_destroy);
-
- retcode = NO_ERROR;
- } else {
+ resource = adm_ctx.resource;
+ for_each_connection(connection, resource) {
+ if (connection->cstate > C_STANDALONE) {
+ retcode = ERR_NET_CONFIGURED;
+ goto out;
+ }
+ }
+ if (!idr_is_empty(&resource->devices)) {
retcode = ERR_RES_IN_USE;
+ goto out;
}
- if (retcode == NO_ERROR)
- drbd_thread_stop(&adm_ctx.tconn->worker);
+ list_del_rcu(&resource->resources);
+ for_each_connection(connection, resource)
+ drbd_thread_stop(&connection->worker);
+ synchronize_rcu();
+ drbd_free_resource(resource);
+ retcode = NO_ERROR;
out:
drbd_adm_finish(info, retcode);
return 0;
}
-void drbd_bcast_event(struct drbd_conf *mdev, const struct sib_info *sib)
+void drbd_bcast_event(struct drbd_device *device, const struct sib_info *sib)
{
static atomic_t drbd_genl_seq = ATOMIC_INIT(2); /* two. */
struct sk_buff *msg;
int err = -ENOMEM;
if (sib->sib_reason == SIB_SYNC_PROGRESS) {
- if (time_after(jiffies, mdev->rs_last_bcast + HZ))
- mdev->rs_last_bcast = jiffies;
+ if (time_after(jiffies, device->rs_last_bcast + HZ))
+ device->rs_last_bcast = jiffies;
else
return;
}
d_out = genlmsg_put(msg, 0, seq, &drbd_genl_family, 0, DRBD_EVENT);
if (!d_out) /* cannot happen, but anyways. */
goto nla_put_failure;
- d_out->minor = mdev_to_minor(mdev);
+ d_out->minor = device_to_minor(device);
d_out->ret_code = NO_ERROR;
- if (nla_put_status_info(msg, mdev, sib))
+ if (nla_put_status_info(msg, device, sib))
goto nla_put_failure;
genlmsg_end(msg, d_out);
err = drbd_genl_multicast_events(msg, 0);
nla_put_failure:
nlmsg_free(msg);
failed:
- dev_err(DEV, "Error %d while broadcasting event. "
+ drbd_err(device, "Error %d while broadcasting event. "
"Event seq:%u sib_reason:%u\n",
err, seq, sib->sib_reason);
}
projects / deliverable / linux.git / blobdiff