On Wed 24-06-20 16:32:28, Shaokun Zhang wrote:
> get_file_rcu_many, which is called by __fget_files, has used
> atomic_try_cmpxchg now and it can reduce the access number of the global
> variable to improve the performance of atomic instruction compared with
> atomic_cmpxchg.
>
> __fget_files doe
Hi Aleksa,
在 2020/8/26 16:24, Aleksa Sarai 写道:
> On 2020-08-26, Shaokun Zhang wrote:
>> 在 2020/8/22 0:02, Will Deacon 写道:
>>> - This thing is tagged with __randomize_layout, so it doesn't help anybody
>>> using that crazy plugin
>>
>> This patch isolated the @f_count with @f_mode absolutely
On 2020-08-26, Shaokun Zhang wrote:
> 在 2020/8/22 0:02, Will Deacon 写道:
> > - This thing is tagged with __randomize_layout, so it doesn't help anybody
> > using that crazy plugin
>
> This patch isolated the @f_count with @f_mode absolutely and we don't care the
> base address of the structu
Hi Will，
在 2020/8/22 0:02, Will Deacon 写道:
> On Wed, Jun 24, 2020 at 04:32:28PM +0800, Shaokun Zhang wrote:
>> get_file_rcu_many, which is called by __fget_files, has used
>> atomic_try_cmpxchg now and it can reduce the access number of the global
>> variable to improve the performance of atomic i
On Wed, Jun 24, 2020 at 04:32:28PM +0800, Shaokun Zhang wrote:
> get_file_rcu_many, which is called by __fget_files, has used
> atomic_try_cmpxchg now and it can reduce the access number of the global
> variable to improve the performance of atomic instruction compared with
> atomic_cmpxchg.
>
>
get_file_rcu_many, which is called by __fget_files, has used
atomic_try_cmpxchg now and it can reduce the access number of the global
variable to improve the performance of atomic instruction compared with
atomic_cmpxchg.
__fget_files does check the @f_mode with mask variable and will do some
ato
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