diff options
Diffstat (limited to 'crypto/xor.c')
| -rw-r--r-- | crypto/xor.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/crypto/xor.c b/crypto/xor.c index 87884435bddb..84daa1111dad 100644 --- a/crypto/xor.c +++ b/crypto/xor.c @@ -21,6 +21,7 @@ #include <linux/gfp.h> #include <linux/raid/xor.h> #include <linux/jiffies.h> +#include <linux/preempt.h> #include <asm/xor.h> /* The xor routines to use. */ @@ -69,6 +70,8 @@ do_xor_speed(struct xor_block_template *tmpl, void *b1, void *b2) tmpl->next = template_list; template_list = tmpl; + preempt_disable(); + /* * Count the number of XORs done during a whole jiffy, and use * this to calculate the speed of checksumming. We use a 2-page @@ -91,6 +94,8 @@ do_xor_speed(struct xor_block_template *tmpl, void *b1, void *b2) max = count; } + preempt_enable(); + speed = max * (HZ * BENCH_SIZE / 1024); tmpl->speed = speed; |