forked from Minki/linux
drbd: Backport the "status" command
The status command originates the drbd9 code base. While for now we keep the status information in /proc/drbd available, this commit allows the user base to gracefully migrate their monitoring infrastructure to the new status reporting interface. In drbd9 no status information is exposed through /proc/drbd. Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Andreas Gruenbacher
Jens Axboe
parent
a29728463b
commit
a55bbd375d
@ -76,6 +76,13 @@ int drbd_adm_get_status(struct sk_buff *skb, struct genl_info *info);
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int drbd_adm_get_timeout_type(struct sk_buff *skb, struct genl_info *info);
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/* .dumpit */
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int drbd_adm_get_status_all(struct sk_buff *skb, struct netlink_callback *cb);
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int drbd_adm_dump_resources(struct sk_buff *skb, struct netlink_callback *cb);
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int drbd_adm_dump_devices(struct sk_buff *skb, struct netlink_callback *cb);
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int drbd_adm_dump_devices_done(struct netlink_callback *cb);
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int drbd_adm_dump_connections(struct sk_buff *skb, struct netlink_callback *cb);
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int drbd_adm_dump_connections_done(struct netlink_callback *cb);
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int drbd_adm_dump_peer_devices(struct sk_buff *skb, struct netlink_callback *cb);
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int drbd_adm_dump_peer_devices_done(struct netlink_callback *cb);
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int drbd_adm_get_initial_state(struct sk_buff *skb, struct netlink_callback *cb);
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#include <linux/drbd_genl_api.h>
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@ -2964,6 +2971,486 @@ nla_put_failure:
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return -EMSGSIZE;
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}
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/*
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* The generic netlink dump callbacks are called outside the genl_lock(), so
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* they cannot use the simple attribute parsing code which uses global
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* attribute tables.
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*/
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static struct nlattr *find_cfg_context_attr(const struct nlmsghdr *nlh, int attr)
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{
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const unsigned hdrlen = GENL_HDRLEN + GENL_MAGIC_FAMILY_HDRSZ;
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const int maxtype = ARRAY_SIZE(drbd_cfg_context_nl_policy) - 1;
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struct nlattr *nla;
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nla = nla_find(nlmsg_attrdata(nlh, hdrlen), nlmsg_attrlen(nlh, hdrlen),
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DRBD_NLA_CFG_CONTEXT);
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if (!nla)
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return NULL;
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return drbd_nla_find_nested(maxtype, nla, __nla_type(attr));
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}
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static void resource_to_info(struct resource_info *, struct drbd_resource *);
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int drbd_adm_dump_resources(struct sk_buff *skb, struct netlink_callback *cb)
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{
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struct drbd_genlmsghdr *dh;
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struct drbd_resource *resource;
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struct resource_info resource_info;
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struct resource_statistics resource_statistics;
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int err;
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rcu_read_lock();
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if (cb->args[0]) {
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for_each_resource_rcu(resource, &drbd_resources)
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if (resource == (struct drbd_resource *)cb->args[0])
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goto found_resource;
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err = 0; /* resource was probably deleted */
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goto out;
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}
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resource = list_entry(&drbd_resources,
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struct drbd_resource, resources);
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found_resource:
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list_for_each_entry_continue_rcu(resource, &drbd_resources, resources) {
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goto put_result;
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}
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err = 0;
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goto out;
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put_result:
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dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
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cb->nlh->nlmsg_seq, &drbd_genl_family,
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NLM_F_MULTI, DRBD_ADM_GET_RESOURCES);
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err = -ENOMEM;
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if (!dh)
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goto out;
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dh->minor = -1U;
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dh->ret_code = NO_ERROR;
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err = nla_put_drbd_cfg_context(skb, resource, NULL, NULL);
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if (err)
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goto out;
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err = res_opts_to_skb(skb, &resource->res_opts, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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resource_to_info(&resource_info, resource);
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err = resource_info_to_skb(skb, &resource_info, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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resource_statistics.res_stat_write_ordering = resource->write_ordering;
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err = resource_statistics_to_skb(skb, &resource_statistics, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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cb->args[0] = (long)resource;
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genlmsg_end(skb, dh);
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err = 0;
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out:
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rcu_read_unlock();
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if (err)
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return err;
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return skb->len;
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}
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static void device_to_statistics(struct device_statistics *s,
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struct drbd_device *device)
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{
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memset(s, 0, sizeof(*s));
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s->dev_upper_blocked = !may_inc_ap_bio(device);
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if (get_ldev(device)) {
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struct drbd_md *md = &device->ldev->md;
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u64 *history_uuids = (u64 *)s->history_uuids;
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struct request_queue *q;
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int n;
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spin_lock_irq(&md->uuid_lock);
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s->dev_current_uuid = md->uuid[UI_CURRENT];
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BUILD_BUG_ON(sizeof(s->history_uuids) < UI_HISTORY_END - UI_HISTORY_START + 1);
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for (n = 0; n < UI_HISTORY_END - UI_HISTORY_START + 1; n++)
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history_uuids[n] = md->uuid[UI_HISTORY_START + n];
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for (; n < HISTORY_UUIDS; n++)
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history_uuids[n] = 0;
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s->history_uuids_len = HISTORY_UUIDS;
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spin_unlock_irq(&md->uuid_lock);
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s->dev_disk_flags = md->flags;
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q = bdev_get_queue(device->ldev->backing_bdev);
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s->dev_lower_blocked =
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bdi_congested(&q->backing_dev_info,
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(1 << WB_async_congested) |
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(1 << WB_sync_congested));
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put_ldev(device);
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}
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s->dev_size = drbd_get_capacity(device->this_bdev);
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s->dev_read = device->read_cnt;
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s->dev_write = device->writ_cnt;
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s->dev_al_writes = device->al_writ_cnt;
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s->dev_bm_writes = device->bm_writ_cnt;
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s->dev_upper_pending = atomic_read(&device->ap_bio_cnt);
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s->dev_lower_pending = atomic_read(&device->local_cnt);
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s->dev_al_suspended = test_bit(AL_SUSPENDED, &device->flags);
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s->dev_exposed_data_uuid = device->ed_uuid;
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}
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static int put_resource_in_arg0(struct netlink_callback *cb, int holder_nr)
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{
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if (cb->args[0]) {
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struct drbd_resource *resource =
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(struct drbd_resource *)cb->args[0];
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kref_put(&resource->kref, drbd_destroy_resource);
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}
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return 0;
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}
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int drbd_adm_dump_devices_done(struct netlink_callback *cb) {
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return put_resource_in_arg0(cb, 7);
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}
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static void device_to_info(struct device_info *, struct drbd_device *);
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int drbd_adm_dump_devices(struct sk_buff *skb, struct netlink_callback *cb)
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{
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struct nlattr *resource_filter;
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struct drbd_resource *resource;
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struct drbd_device *uninitialized_var(device);
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int minor, err, retcode;
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struct drbd_genlmsghdr *dh;
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struct device_info device_info;
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struct device_statistics device_statistics;
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struct idr *idr_to_search;
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resource = (struct drbd_resource *)cb->args[0];
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if (!cb->args[0] && !cb->args[1]) {
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resource_filter = find_cfg_context_attr(cb->nlh, T_ctx_resource_name);
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if (resource_filter) {
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retcode = ERR_RES_NOT_KNOWN;
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resource = drbd_find_resource(nla_data(resource_filter));
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if (!resource)
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goto put_result;
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cb->args[0] = (long)resource;
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}
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}
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rcu_read_lock();
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minor = cb->args[1];
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idr_to_search = resource ? &resource->devices : &drbd_devices;
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device = idr_get_next(idr_to_search, &minor);
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if (!device) {
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err = 0;
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goto out;
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}
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idr_for_each_entry_continue(idr_to_search, device, minor) {
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retcode = NO_ERROR;
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goto put_result; /* only one iteration */
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}
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err = 0;
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goto out; /* no more devices */
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put_result:
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dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
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cb->nlh->nlmsg_seq, &drbd_genl_family,
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NLM_F_MULTI, DRBD_ADM_GET_DEVICES);
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err = -ENOMEM;
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if (!dh)
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goto out;
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dh->ret_code = retcode;
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dh->minor = -1U;
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if (retcode == NO_ERROR) {
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dh->minor = device->minor;
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err = nla_put_drbd_cfg_context(skb, device->resource, NULL, device);
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if (err)
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goto out;
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if (get_ldev(device)) {
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struct disk_conf *disk_conf =
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rcu_dereference(device->ldev->disk_conf);
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err = disk_conf_to_skb(skb, disk_conf, !capable(CAP_SYS_ADMIN));
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put_ldev(device);
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if (err)
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goto out;
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}
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device_to_info(&device_info, device);
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err = device_info_to_skb(skb, &device_info, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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device_to_statistics(&device_statistics, device);
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err = device_statistics_to_skb(skb, &device_statistics, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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cb->args[1] = minor + 1;
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}
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genlmsg_end(skb, dh);
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err = 0;
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out:
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rcu_read_unlock();
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if (err)
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return err;
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return skb->len;
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}
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int drbd_adm_dump_connections_done(struct netlink_callback *cb)
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{
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return put_resource_in_arg0(cb, 6);
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}
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enum { SINGLE_RESOURCE, ITERATE_RESOURCES };
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int drbd_adm_dump_connections(struct sk_buff *skb, struct netlink_callback *cb)
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{
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struct nlattr *resource_filter;
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struct drbd_resource *resource = NULL, *next_resource;
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struct drbd_connection *uninitialized_var(connection);
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int err = 0, retcode;
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struct drbd_genlmsghdr *dh;
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struct connection_info connection_info;
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struct connection_statistics connection_statistics;
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rcu_read_lock();
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resource = (struct drbd_resource *)cb->args[0];
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if (!cb->args[0]) {
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resource_filter = find_cfg_context_attr(cb->nlh, T_ctx_resource_name);
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if (resource_filter) {
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retcode = ERR_RES_NOT_KNOWN;
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resource = drbd_find_resource(nla_data(resource_filter));
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if (!resource)
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goto put_result;
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cb->args[0] = (long)resource;
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cb->args[1] = SINGLE_RESOURCE;
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}
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}
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if (!resource) {
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if (list_empty(&drbd_resources))
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goto out;
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resource = list_first_entry(&drbd_resources, struct drbd_resource, resources);
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kref_get(&resource->kref);
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cb->args[0] = (long)resource;
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cb->args[1] = ITERATE_RESOURCES;
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}
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next_resource:
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rcu_read_unlock();
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mutex_lock(&resource->conf_update);
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rcu_read_lock();
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if (cb->args[2]) {
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for_each_connection_rcu(connection, resource)
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if (connection == (struct drbd_connection *)cb->args[2])
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goto found_connection;
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/* connection was probably deleted */
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goto no_more_connections;
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}
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connection = list_entry(&resource->connections, struct drbd_connection, connections);
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found_connection:
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list_for_each_entry_continue_rcu(connection, &resource->connections, connections) {
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if (!has_net_conf(connection))
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continue;
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retcode = NO_ERROR;
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goto put_result; /* only one iteration */
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}
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no_more_connections:
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if (cb->args[1] == ITERATE_RESOURCES) {
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for_each_resource_rcu(next_resource, &drbd_resources) {
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if (next_resource == resource)
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goto found_resource;
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}
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/* resource was probably deleted */
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}
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goto out;
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found_resource:
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list_for_each_entry_continue_rcu(next_resource, &drbd_resources, resources) {
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mutex_unlock(&resource->conf_update);
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kref_put(&resource->kref, drbd_destroy_resource);
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resource = next_resource;
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kref_get(&resource->kref);
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cb->args[0] = (long)resource;
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cb->args[2] = 0;
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goto next_resource;
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}
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goto out; /* no more resources */
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put_result:
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dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
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cb->nlh->nlmsg_seq, &drbd_genl_family,
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NLM_F_MULTI, DRBD_ADM_GET_CONNECTIONS);
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err = -ENOMEM;
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if (!dh)
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goto out;
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dh->ret_code = retcode;
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dh->minor = -1U;
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if (retcode == NO_ERROR) {
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struct net_conf *net_conf;
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err = nla_put_drbd_cfg_context(skb, resource, connection, NULL);
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if (err)
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goto out;
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net_conf = rcu_dereference(connection->net_conf);
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if (net_conf) {
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err = net_conf_to_skb(skb, net_conf, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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}
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connection_to_info(&connection_info, connection);
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err = connection_info_to_skb(skb, &connection_info, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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connection_statistics.conn_congested = test_bit(NET_CONGESTED, &connection->flags);
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err = connection_statistics_to_skb(skb, &connection_statistics, !capable(CAP_SYS_ADMIN));
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if (err)
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goto out;
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cb->args[2] = (long)connection;
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}
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genlmsg_end(skb, dh);
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err = 0;
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out:
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rcu_read_unlock();
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if (resource)
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mutex_unlock(&resource->conf_update);
|
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if (err)
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||||
return err;
|
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return skb->len;
|
||||
}
|
||||
|
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enum mdf_peer_flag {
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MDF_PEER_CONNECTED = 1 << 0,
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MDF_PEER_OUTDATED = 1 << 1,
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MDF_PEER_FENCING = 1 << 2,
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MDF_PEER_FULL_SYNC = 1 << 3,
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};
|
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|
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static void peer_device_to_statistics(struct peer_device_statistics *s,
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struct drbd_peer_device *peer_device)
|
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{
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struct drbd_device *device = peer_device->device;
|
||||
|
||||
memset(s, 0, sizeof(*s));
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s->peer_dev_received = device->recv_cnt;
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s->peer_dev_sent = device->send_cnt;
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s->peer_dev_pending = atomic_read(&device->ap_pending_cnt) +
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atomic_read(&device->rs_pending_cnt);
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s->peer_dev_unacked = atomic_read(&device->unacked_cnt);
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s->peer_dev_out_of_sync = drbd_bm_total_weight(device) << (BM_BLOCK_SHIFT - 9);
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s->peer_dev_resync_failed = device->rs_failed << (BM_BLOCK_SHIFT - 9);
|
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if (get_ldev(device)) {
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struct drbd_md *md = &device->ldev->md;
|
||||
|
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spin_lock_irq(&md->uuid_lock);
|
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s->peer_dev_bitmap_uuid = md->uuid[UI_BITMAP];
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spin_unlock_irq(&md->uuid_lock);
|
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s->peer_dev_flags =
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(drbd_md_test_flag(device->ldev, MDF_CONNECTED_IND) ?
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MDF_PEER_CONNECTED : 0) +
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(drbd_md_test_flag(device->ldev, MDF_CONSISTENT) &&
|
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!drbd_md_test_flag(device->ldev, MDF_WAS_UP_TO_DATE) ?
|
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MDF_PEER_OUTDATED : 0) +
|
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/* FIXME: MDF_PEER_FENCING? */
|
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(drbd_md_test_flag(device->ldev, MDF_FULL_SYNC) ?
|
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MDF_PEER_FULL_SYNC : 0);
|
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put_ldev(device);
|
||||
}
|
||||
}
|
||||
|
||||
int drbd_adm_dump_peer_devices_done(struct netlink_callback *cb)
|
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{
|
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return put_resource_in_arg0(cb, 9);
|
||||
}
|
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|
||||
int drbd_adm_dump_peer_devices(struct sk_buff *skb, struct netlink_callback *cb)
|
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{
|
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struct nlattr *resource_filter;
|
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struct drbd_resource *resource;
|
||||
struct drbd_device *uninitialized_var(device);
|
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struct drbd_peer_device *peer_device = NULL;
|
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int minor, err, retcode;
|
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struct drbd_genlmsghdr *dh;
|
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struct idr *idr_to_search;
|
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|
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resource = (struct drbd_resource *)cb->args[0];
|
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if (!cb->args[0] && !cb->args[1]) {
|
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resource_filter = find_cfg_context_attr(cb->nlh, T_ctx_resource_name);
|
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if (resource_filter) {
|
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retcode = ERR_RES_NOT_KNOWN;
|
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resource = drbd_find_resource(nla_data(resource_filter));
|
||||
if (!resource)
|
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goto put_result;
|
||||
}
|
||||
cb->args[0] = (long)resource;
|
||||
}
|
||||
|
||||
rcu_read_lock();
|
||||
minor = cb->args[1];
|
||||
idr_to_search = resource ? &resource->devices : &drbd_devices;
|
||||
device = idr_find(idr_to_search, minor);
|
||||
if (!device) {
|
||||
next_device:
|
||||
minor++;
|
||||
cb->args[2] = 0;
|
||||
device = idr_get_next(idr_to_search, &minor);
|
||||
if (!device) {
|
||||
err = 0;
|
||||
goto out;
|
||||
}
|
||||
}
|
||||
if (cb->args[2]) {
|
||||
for_each_peer_device(peer_device, device)
|
||||
if (peer_device == (struct drbd_peer_device *)cb->args[2])
|
||||
goto found_peer_device;
|
||||
/* peer device was probably deleted */
|
||||
goto next_device;
|
||||
}
|
||||
/* Make peer_device point to the list head (not the first entry). */
|
||||
peer_device = list_entry(&device->peer_devices, struct drbd_peer_device, peer_devices);
|
||||
|
||||
found_peer_device:
|
||||
list_for_each_entry_continue_rcu(peer_device, &device->peer_devices, peer_devices) {
|
||||
if (!has_net_conf(peer_device->connection))
|
||||
continue;
|
||||
retcode = NO_ERROR;
|
||||
goto put_result; /* only one iteration */
|
||||
}
|
||||
goto next_device;
|
||||
|
||||
put_result:
|
||||
dh = genlmsg_put(skb, NETLINK_CB(cb->skb).portid,
|
||||
cb->nlh->nlmsg_seq, &drbd_genl_family,
|
||||
NLM_F_MULTI, DRBD_ADM_GET_PEER_DEVICES);
|
||||
err = -ENOMEM;
|
||||
if (!dh)
|
||||
goto out;
|
||||
dh->ret_code = retcode;
|
||||
dh->minor = -1U;
|
||||
if (retcode == NO_ERROR) {
|
||||
struct peer_device_info peer_device_info;
|
||||
struct peer_device_statistics peer_device_statistics;
|
||||
|
||||
dh->minor = minor;
|
||||
err = nla_put_drbd_cfg_context(skb, device->resource, peer_device->connection, device);
|
||||
if (err)
|
||||
goto out;
|
||||
peer_device_to_info(&peer_device_info, peer_device);
|
||||
err = peer_device_info_to_skb(skb, &peer_device_info, !capable(CAP_SYS_ADMIN));
|
||||
if (err)
|
||||
goto out;
|
||||
peer_device_to_statistics(&peer_device_statistics, peer_device);
|
||||
err = peer_device_statistics_to_skb(skb, &peer_device_statistics, !capable(CAP_SYS_ADMIN));
|
||||
if (err)
|
||||
goto out;
|
||||
cb->args[1] = minor;
|
||||
cb->args[2] = (long)peer_device;
|
||||
}
|
||||
genlmsg_end(skb, dh);
|
||||
err = 0;
|
||||
|
||||
out:
|
||||
rcu_read_unlock();
|
||||
if (err)
|
||||
return err;
|
||||
return skb->len;
|
||||
}
|
||||
/*
|
||||
* Return the connection of @resource if @resource has exactly one connection.
|
||||
*/
|
||||
@ -3818,85 +4305,6 @@ failed:
|
||||
err, seq, sib->sib_reason);
|
||||
}
|
||||
|
||||
static void device_to_statistics(struct device_statistics *s,
|
||||
struct drbd_device *device)
|
||||
{
|
||||
memset(s, 0, sizeof(*s));
|
||||
s->dev_upper_blocked = !may_inc_ap_bio(device);
|
||||
if (get_ldev(device)) {
|
||||
struct drbd_md *md = &device->ldev->md;
|
||||
u64 *history_uuids = (u64 *)s->history_uuids;
|
||||
struct request_queue *q;
|
||||
int n;
|
||||
|
||||
spin_lock_irq(&md->uuid_lock);
|
||||
s->dev_current_uuid = md->uuid[UI_CURRENT];
|
||||
BUILD_BUG_ON(sizeof(s->history_uuids) < UI_HISTORY_END - UI_HISTORY_START + 1);
|
||||
for (n = 0; n < UI_HISTORY_END - UI_HISTORY_START + 1; n++)
|
||||
history_uuids[n] = md->uuid[UI_HISTORY_START + n];
|
||||
for (; n < HISTORY_UUIDS; n++)
|
||||
history_uuids[n] = 0;
|
||||
s->history_uuids_len = HISTORY_UUIDS;
|
||||
spin_unlock_irq(&md->uuid_lock);
|
||||
|
||||
s->dev_disk_flags = md->flags;
|
||||
q = bdev_get_queue(device->ldev->backing_bdev);
|
||||
s->dev_lower_blocked =
|
||||
bdi_congested(&q->backing_dev_info,
|
||||
(1 << WB_async_congested) |
|
||||
(1 << WB_sync_congested));
|
||||
put_ldev(device);
|
||||
}
|
||||
s->dev_size = drbd_get_capacity(device->this_bdev);
|
||||
s->dev_read = device->read_cnt;
|
||||
s->dev_write = device->writ_cnt;
|
||||
s->dev_al_writes = device->al_writ_cnt;
|
||||
s->dev_bm_writes = device->bm_writ_cnt;
|
||||
s->dev_upper_pending = atomic_read(&device->ap_bio_cnt);
|
||||
s->dev_lower_pending = atomic_read(&device->local_cnt);
|
||||
s->dev_al_suspended = test_bit(AL_SUSPENDED, &device->flags);
|
||||
s->dev_exposed_data_uuid = device->ed_uuid;
|
||||
}
|
||||
|
||||
enum mdf_peer_flag {
|
||||
MDF_PEER_CONNECTED = 1 << 0,
|
||||
MDF_PEER_OUTDATED = 1 << 1,
|
||||
MDF_PEER_FENCING = 1 << 2,
|
||||
MDF_PEER_FULL_SYNC = 1 << 3,
|
||||
};
|
||||
|
||||
static void peer_device_to_statistics(struct peer_device_statistics *s,
|
||||
struct drbd_peer_device *peer_device)
|
||||
{
|
||||
struct drbd_device *device = peer_device->device;
|
||||
|
||||
memset(s, 0, sizeof(*s));
|
||||
s->peer_dev_received = device->recv_cnt;
|
||||
s->peer_dev_sent = device->send_cnt;
|
||||
s->peer_dev_pending = atomic_read(&device->ap_pending_cnt) +
|
||||
atomic_read(&device->rs_pending_cnt);
|
||||
s->peer_dev_unacked = atomic_read(&device->unacked_cnt);
|
||||
s->peer_dev_out_of_sync = drbd_bm_total_weight(device) << (BM_BLOCK_SHIFT - 9);
|
||||
s->peer_dev_resync_failed = device->rs_failed << (BM_BLOCK_SHIFT - 9);
|
||||
if (get_ldev(device)) {
|
||||
struct drbd_md *md = &device->ldev->md;
|
||||
|
||||
spin_lock_irq(&md->uuid_lock);
|
||||
s->peer_dev_bitmap_uuid = md->uuid[UI_BITMAP];
|
||||
spin_unlock_irq(&md->uuid_lock);
|
||||
s->peer_dev_flags =
|
||||
(drbd_md_test_flag(device->ldev, MDF_CONNECTED_IND) ?
|
||||
MDF_PEER_CONNECTED : 0) +
|
||||
(drbd_md_test_flag(device->ldev, MDF_CONSISTENT) &&
|
||||
!drbd_md_test_flag(device->ldev, MDF_WAS_UP_TO_DATE) ?
|
||||
MDF_PEER_OUTDATED : 0) +
|
||||
/* FIXME: MDF_PEER_FENCING? */
|
||||
(drbd_md_test_flag(device->ldev, MDF_FULL_SYNC) ?
|
||||
MDF_PEER_FULL_SYNC : 0);
|
||||
put_ldev(device);
|
||||
}
|
||||
}
|
||||
|
||||
static int nla_put_notification_header(struct sk_buff *msg,
|
||||
enum drbd_notification_type type)
|
||||
{
|
||||
|
||||
@ -453,6 +453,41 @@ GENL_op(DRBD_ADM_GET_TIMEOUT_TYPE, 26, GENL_doit(drbd_adm_get_timeout_type),
|
||||
GENL_op(DRBD_ADM_DOWN, 27, GENL_doit(drbd_adm_down),
|
||||
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED))
|
||||
|
||||
GENL_op(DRBD_ADM_GET_RESOURCES, 30,
|
||||
GENL_op_init(
|
||||
.dumpit = drbd_adm_dump_resources,
|
||||
),
|
||||
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_RESOURCE_INFO, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_RESOURCE_STATISTICS, DRBD_GENLA_F_MANDATORY))
|
||||
|
||||
GENL_op(DRBD_ADM_GET_DEVICES, 31,
|
||||
GENL_op_init(
|
||||
.dumpit = drbd_adm_dump_devices,
|
||||
.done = drbd_adm_dump_devices_done,
|
||||
),
|
||||
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_DEVICE_INFO, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_DEVICE_STATISTICS, DRBD_GENLA_F_MANDATORY))
|
||||
|
||||
GENL_op(DRBD_ADM_GET_CONNECTIONS, 32,
|
||||
GENL_op_init(
|
||||
.dumpit = drbd_adm_dump_connections,
|
||||
.done = drbd_adm_dump_connections_done,
|
||||
),
|
||||
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_CONNECTION_INFO, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_CONNECTION_STATISTICS, DRBD_GENLA_F_MANDATORY))
|
||||
|
||||
GENL_op(DRBD_ADM_GET_PEER_DEVICES, 33,
|
||||
GENL_op_init(
|
||||
.dumpit = drbd_adm_dump_peer_devices,
|
||||
.done = drbd_adm_dump_peer_devices_done,
|
||||
),
|
||||
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_PEER_DEVICE_INFO, DRBD_GENLA_F_MANDATORY)
|
||||
GENL_tla_expected(DRBD_NLA_PEER_DEVICE_STATISTICS, DRBD_GENLA_F_MANDATORY))
|
||||
|
||||
GENL_notification(
|
||||
DRBD_RESOURCE_STATE, 34, events,
|
||||
GENL_tla_expected(DRBD_NLA_CFG_CONTEXT, DRBD_F_REQUIRED)
|
||||
|
||||
@ -135,6 +135,20 @@ static inline void *idr_find(struct idr *idr, int id)
|
||||
#define idr_for_each_entry(idp, entry, id) \
|
||||
for (id = 0; ((entry) = idr_get_next(idp, &(id))) != NULL; ++id)
|
||||
|
||||
/**
|
||||
* idr_for_each_entry - continue iteration over an idr's elements of a given type
|
||||
* @idp: idr handle
|
||||
* @entry: the type * to use as cursor
|
||||
* @id: id entry's key
|
||||
*
|
||||
* Continue to iterate over list of given type, continuing after
|
||||
* the current position.
|
||||
*/
|
||||
#define idr_for_each_entry_continue(idp, entry, id) \
|
||||
for ((entry) = idr_get_next((idp), &(id)); \
|
||||
entry; \
|
||||
++id, (entry) = idr_get_next((idp), &(id)))
|
||||
|
||||
/*
|
||||
* IDA - IDR based id allocator, use when translation from id to
|
||||
* pointer isn't necessary.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user