crypto: Fix divide error in do_xor_speed()
From: Kirill Tkhai
Latest (but not only latest) linux-next panics with divide
error on my QEMU setup.
The patch at the bottom of this message fixes the problem.
xor: measuring software checksum speed
divide error: [#1] PREEMPT SMP KASAN
PREEMPT
do_one_initcall+0xc1/0x1b7
? start_kernel+0x373/0x373
? unpoison_range+0x3a/0x60
kernel_init_freeable+0x1dd/0x238
? rest_init+0xc6/0xc6
kernel_init+0x8/0x10a
ret_from_fork+0x1f/0x30
---[ end trace 5bd3c1d0b2da ]---
Signed-off-by: Kirill Tkhai
---
crypto/xor.c |2 ++
1 file changed, 2 insertions
On 12.07.2014 00:33, Tim Chen wrote:
> This function will help a thread decide if it wants to to do work
> that can be delayed, to accumulate more tasks for more efficient
> batch processing later.
>
> However, if no other tasks are running on the cpu, it can take
> advantgae of the available cpu
