dm raid1: keep issuing IO after leg failure
Currently if there is a leg failure, the bio will be put into the hold list until userspace does a remove/replace on the leg. Doing so in a cluster config (clvmd) is problematic because there may be a temporary path failure that results in cluster raid1 remove/replace. Such recovery takes a long time due to a full resync. Update dm-raid1 to optionally ignore these failures so bios continue being issued without interrupton. To enable this feature userspace must pass "keep_log" when creating the dm-raid1 device. Signed-off-by: NLidong Zhong <lzhong@suse.com> Tested-by: NLiuhua Wang <lwang@suse.com> Acked-by: NHeinz Mauelshagen <heinzm@redhat.com> Signed-off-by: NMike Snitzer <snitzer@redhat.com>
Showing
想要评论请 注册 或 登录