RAID/s390: provide raid6 recovery optimization
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 31 Aug 2016 07:27:35 +0000 (09:27 +0200)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Thu, 1 Sep 2016 14:13:25 +0000 (16:13 +0200)
commitf5b55fa1f81d518925d68b50d2316850c525d1ad
treec4a75615884dff7236b788a774fdfb04892a3bfe
parent7bac4f5b8e3a607f7ba1d3a652f5922a657fa9e8
RAID/s390: provide raid6 recovery optimization

The XC instruction can be used to improve the speed of the raid6
recovery. The loops now operate on blocks of 256 bytes.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
include/linux/raid/pq.h
lib/raid6/Makefile
lib/raid6/algos.c
lib/raid6/recov_s390xc.c [new file with mode: 0644]