On 2016/12/5 16:50, Christian Borntraeger wrote:
> On 12/05/2016 09:31 AM, Christian Borntraeger wrote:
>> On 12/05/2016 09:23 AM, Xishi Qiu wrote:
>>> By reading the code, I find the following code maybe optimized by
>>> compiler, maybe page->flags and old_flags use the same register,
>>> so use
On 12/05/2016 09:31 AM, Christian Borntraeger wrote:
> On 12/05/2016 09:23 AM, Xishi Qiu wrote:
>> By reading the code, I find the following code maybe optimized by
>> compiler, maybe page->flags and old_flags use the same register,
>> so use ACCESS_ONCE in page_cpupid_xchg_last() to fix the proble
On 12/05/2016 09:23 AM, Xishi Qiu wrote:
> By reading the code, I find the following code maybe optimized by
> compiler, maybe page->flags and old_flags use the same register,
> so use ACCESS_ONCE in page_cpupid_xchg_last() to fix the problem.
please use READ_ONCE instead of ACCESS_ONCE for future
By reading the code, I find the following code maybe optimized by
compiler, maybe page->flags and old_flags use the same register,
so use ACCESS_ONCE in page_cpupid_xchg_last() to fix the problem.
Signed-off-by: Xishi Qiu
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mm/mmzone.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
dif
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