Re: [PATCH v1 02/18] mm/rmap: always inline anon/file rmap duplication of a single PTE

"Yin, Fengwei" <[email protected]>
Newsgroups gmane.linux.kernel.cgroups,gmane.linux.kernel,gmane.linux.kernel.mm,gmane.linux.documentation,gmane.linux.ports.sh.devel,gmane.linux.file-systems
Message-ID <[email protected]> 

On 4/10/2024 3:22 AM, David Hildenbrand wrote:
> As we grow the code, the compiler might make stupid decisions and
> unnecessarily degrade fork() performance. Let's make sure to always inline
> functions that operate on a single PTE so the compiler will always
> optimize out the loop and avoid a function call.
> 
> This is a preparation for maintining a total mapcount for large folios.
> 
> Signed-off-by: David Hildenbrand<[email protected]>
The patch looks good to me. Just curious: Is this change driven by code
reviewing or performance data profiling? Thanks.


Regards
Yin, Fengwei
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