On Thu, Oct 03, 2019 at 04:36:08PM -0400, Waiman Long wrote:
> The check_preemption_disabled() function uses cpumask_equal() to see
> if the task is bounded to the current CPU only. cpumask_equal() calls
> memcmp() to do the comparison. As x86 doesn't have __HAVE_ARCH_MEMCMP,
> the slow memcmp()
On 10/4/19 5:20 AM, Sebastian Andrzej Siewior wrote:
> On 2019-10-03 16:36:08 [-0400], Waiman Long wrote:
>> The check_preemption_disabled() function uses cpumask_equal() to see
>> if the task is bounded to the current CPU only. cpumask_equal() calls
>> memcmp() to do the comparison. As x86
Hi,
On 03/10/19 16:36, Waiman Long wrote:
> The check_preemption_disabled() function uses cpumask_equal() to see
> if the task is bounded to the current CPU only. cpumask_equal() calls
> memcmp() to do the comparison. As x86 doesn't have __HAVE_ARCH_MEMCMP,
> the slow memcmp() function in
On 2019-10-03 16:36:08 [-0400], Waiman Long wrote:
> The check_preemption_disabled() function uses cpumask_equal() to see
> if the task is bounded to the current CPU only. cpumask_equal() calls
> memcmp() to do the comparison. As x86 doesn't have __HAVE_ARCH_MEMCMP,
> the slow memcmp() function in
The check_preemption_disabled() function uses cpumask_equal() to see
if the task is bounded to the current CPU only. cpumask_equal() calls
memcmp() to do the comparison. As x86 doesn't have __HAVE_ARCH_MEMCMP,
the slow memcmp() function in lib/string.c is used.
On a RT kernel that call
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