diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig | 8 | ||||
| -rw-r--r-- | lib/raid6/algos.c | 5 |
2 files changed, 13 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig index a9965f4af4dd..fcb05305a5a2 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -10,6 +10,14 @@ menu "Library routines" config RAID6_PQ tristate +config RAID6_PQ_BENCHMARK + bool "Automatically choose fastest RAID6 PQ functions" + depends on RAID6_PQ + default y + help + Benchmark all available RAID6 PQ functions on init and choose the + fastest one. + config BITREVERSE tristate diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c index a753ff56670f..7e4f7a8ffa8e 100644 --- a/lib/raid6/algos.c +++ b/lib/raid6/algos.c @@ -163,6 +163,11 @@ static inline const struct raid6_calls *raid6_choose_gen( if ((*algo)->valid && !(*algo)->valid()) continue; + if (!IS_ENABLED(CONFIG_RAID6_PQ_BENCHMARK)) { + best = *algo; + break; + } + perf = 0; preempt_disable(); |