>>> On 5/16/2015 at 12:11 AM, in message <20150515161108.GA28234@xxxxxxxxxx>, Mike Snitzer <snitzer@xxxxxxxxxx> wrote: > On Wed, May 13 2015 at 2:04am -0400, > Lidong Zhong <lzhong@xxxxxxxx> wrote: > > > Currently if there is a leg failure, the bio will be put into the hold > > list until userspace replace/remove the leg. Here we are trying to make > > dm-raid1 ignore the failure and keep the following bios going on. > > This is because there maybe a temporary path failure in clvmd > > which leads to cluster raid1 remove/replace the fake device failure. And > > it takes a long time to do the full sync if we readd the device back. > > > > This patch merges the former five small patches to implement this > > feature. The userspace should pass "keep_log" into kernel to make this > feature to > > take effect when creating dm-raid1, same as "handle_errors". > > > > Signed-off-by: Lidong Zhong <lzhong@xxxxxxxx> > > Tested-by: Liuhua Wang <lwang@xxxxxxxx> > > I've staged a revised patch for 4.2 here: > https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit > /?h=for-next&id=164a064dd85801986f3190e6edd119b6fc9a05c5 > > The big things I clarified/cleaned are: > 1) keep_log depends on handle_errors feature > 2) feature reporting via 'dmsetup table' needed to be decoupled > otherwise any future feature would've forced this same cleanup. > 3) Cleaned up header and in-code comments. > 4) bumped the target version > > Please let me know if you see nay issues with this version. > Hi Mike, All look good to me. Thanks. Regards, Lidong > Thanks, > Mike > > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
