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>

1 files changed, 3 insertions, 0 deletions

diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
index e1923b602bbc..592ff49df47d 100644
--- a/lib/raid6/algos.c
+++ b/lib/raid6/algos.c
@@ -98,6 +98,9 @@ const struct raid6_recov_calls *const raid6_recov_algos[] = {
 #ifdef CONFIG_AS_SSSE3
         &raid6_recov_ssse3,
 #endif
+#ifdef CONFIG_S390
+        &raid6_recov_s390xc,
+#endif
         &raid6_recov_intx1,
         NULL
 };