From: Heinz Mauelshagen <heinzm@xxxxxxxxxx> Upstream commit 7a771ceac771d009f7203c40b256b0608d7ea2f8 added journal support to dm-raid to close the raid4/5/6 "write hole" but doesn't provide an API to switch modes from device-mapper. Add missing API to MD and use it from device-mapper dm-raid thus supporting 'write-back' journal caching in the raid target. Heinz Mauelshagen (2): md: add raid4/5/6 journal mode API (for dm-raid use) dm raid: add raid4/5/6 journal mode support Documentation/device-mapper/dm-raid.txt | 11 +++- drivers/md/dm-raid.c | 91 ++++++++++++++++++++++++++++----- drivers/md/raid5-cache.c | 62 ++++++++++++---------- drivers/md/raid5.h | 11 ++++ 4 files changed, 133 insertions(+), 42 deletions(-) -- 2.9.3 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
