Patch 1 fixes validate_raid_redundancy() to check the current raid set level as stored in the superblock rather than the constructor requested one. In case of a raid0 to raid10 conversion, the related flaw caused a raid10 check on the given raid0 raid set leading to a divide error. Patch 2 hardens raid resync/recover/reshape by retrieving any current related offsets from the active, uspended mapping thus avoiding frozen raid recovery across reloads altogether. Patch 3 ensures 'a' chars during reshaping. Patch 4 + 5 add simplification and cleanup without functional change. This series presumes https://www.redhat.com/archives/dm-devel/2017-December/msg00012.html or linux-dm.git, revision-range fbc7c07ec23c..b84cf26924cf respectively. Heinz Mauelshagen (5): dm raid: validate current raid sets redundancy dm raid: avoid keeping raid set frozen altogether dm raid: ensure 'a' chars during reshape dm raid: simplify rs_get_progress() dm raid: use rs_is_raid*() / comment Documentation/device-mapper/dm-raid.txt | 1 + drivers/md/dm-raid.c | 168 ++++++++++++++++++-------------- 2 files changed, 98 insertions(+), 71 deletions(-) -- 2.13.6 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
