queue_mode mode: Select the queueing mode per multipath device. The mode value options are bio, rq or mq. These correspond to bio-based, request-based, and block-multiqueue request-based (blk-mq), respectively. By default, the value is unset. path_checker Specifies the de...
一、multipath在redhat 6.2中的基本配置: 1. 通过命令:lsmod |grep dm_multipath 检查是否正常安装成功。如果没有输出说明没有安装那么通过yum功能安装一下软件包:yum –y install device-mapper device-mapper-multipath 接着通过命令:multipath –ll 查看多路径状态查看模块是否加载成功 [root@liujing ~]# multipath...
blk-mq-pci.h blk-mq-virtio.h blk-mq.h blk-pm.h blk_types.h blkdev.h blkpg.h blktrace_api.h blockgroup_lock.h bma150.h bootconfig.h bootmem_info.h bottom_half.h bpf-cgroup-defs.h bpf-cgroup.h bpf-netns.h bpf.h bpf_crypto.h bpf_lirc.h bpf_local_storage.h bpf_lsm.h bp...
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blk_mq_freeze_queue_wait(h->disk->queue); } void nvme_mpath_start_freeze(struct nvme_subsystem *subsys) { struct nvme_ns_head *h; lockdep_assert_held(&subsys->lock); list_for_each_entry(h, &subsys->nsheads, entry)
blk_mq_unfreeze_queue(h->disk->queue); } void nvme_mpath_wait_freeze(struct nvme_subsystem *subsys) { struct nvme_ns_head *h; lockdep_assert_held(&subsys->lock); list_for_each_entry(h, &subsys->nsheads, entry) if (h->disk) blk_mq_freeze_queue_wait(h->disk->queue); } void ...
. queue_work(dm_mpath_wq, &m->trigger_event) -> 触发一个event以唤起用户态的对该Multipath事件的监听线程, 用户态(multipath-tools)关键字: PATH_FAILED enable_nopath_timeout(m) mod_timer(&m->nopath_timer 内核IO映射时选择其他路径: static const struct blk_mq_ops dm_mq_ops = { .queue_...
queue_mode mode: Select the queueing mode per multipath device. The mode value options are bio, rq or mq. These correspond to bio-based, request-based, and block-multiqueue request-based (blk-mq), respectively. By default, the value is unset. path_checker Specifies the de...
blk-mq.h blk-pm.h blk_types.h blkdev.h blkpg.h blktrace_api.h blockgroup_lock.h bma150.h bootconfig.h bootmem_info.h bottom_half.h bpf-cgroup-defs.h bpf-cgroup.h bpf-netns.h bpf.h bpf_crypto.h bpf_lirc.h bpf_local_storage.h bpf_lsm.h bpf_mem_alloc.h ...
blk-mq-pci.h blk-mq-virtio.h blk-mq.h blk-pm.h blk_types.h blkdev.h blkpg.h blktrace_api.h blockgroup_lock.h bma150.h bootconfig.h bootmem_info.h bottom_half.h bpf-cgroup-defs.h bpf-cgroup.h bpf-netns.h bpf.h bpf_lirc.h bpf_local_storage.h bpf_lsm.h ...