On Fri, Apr 29 2016 at 3:18pm -0400, Mike Snitzer <snitzer@xxxxxxxxxx> wrote: > On Fri, Apr 29 2016 at 12:59pm -0400, > heinzm@xxxxxxxxxx <heinzm@xxxxxxxxxx> wrote: > > > From: Heinz Mauelshagen <heinzm@xxxxxxxxxx> > > > > Because we don't support any feature flags in the dm-raid ondisk > > metadata yet (see struct dm_raid_superblock, 'features' member), > > this patch adds a check to ensure no flags are actually set or > > reject the activation of the RAID mapping. > > > > This is to prevent possible data corruption in case of a > > kernel downgrade when there'll potentially be feature flags > > set by a future dm-raid target. > > > > > > Signed-off-by: Heinz Mauelshagen <heinzm@xxxxxxxxxx> > > merged for 4.7, see: > https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.7&id=480375cd7ea3eed60381539dbfa96851b6174820 Actually, I revised the header and patch content, see: https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=dm-4.7&id=ecdb57d205b98b656ab3ea0412f7a15ec003357f -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
