From: Al Viro
> Sent: 31 August 2020 04:21
>
> On Mon, Aug 31, 2020 at 09:43:31AM +0800, Shaokun Zhang wrote:
>
> > How about this? We try to replace atomic_cmpxchg with atomic_add to improve
> > performance. The atomic_add does not check the current f_count value.
> > Therefore, the number of on
On Mon, Aug 31, 2020 at 09:43:31AM +0800, Shaokun Zhang wrote:
> How about this? We try to replace atomic_cmpxchg with atomic_add to improve
> performance. The atomic_add does not check the current f_count value.
> Therefore, the number of online CPUs is reserved to prevent multi-core
> competitio
Hi Al,
在 2020/8/27 22:28, Al Viro 写道:
> On Thu, Aug 27, 2020 at 06:19:44PM +0800, Shaokun Zhang wrote:
>> From: Yuqi Jin
>>
>> It is well known that the performance of atomic_add is better than that of
>> atomic_cmpxchg.
>> The initial value of @f_count is 1. While @f_count is increased by 1 in
>
On Thu, Aug 27, 2020 at 03:28:48PM +0100, Al Viro wrote:
> On Thu, Aug 27, 2020 at 06:19:44PM +0800, Shaokun Zhang wrote:
> > From: Yuqi Jin
> >
> > It is well known that the performance of atomic_add is better than that of
> > atomic_cmpxchg.
> > The initial value of @f_count is 1. While @f_coun
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