Re: [PATCH v6 1/4] MIPS: Do not flush tlb page when updating PTE entry

[Sergei Shtylyov]

On 25.05.2020 11:12, Sergei Shtylyov wrote:

> > It is not necessary to flush tlb page on all CPUs if suitable PTE
> > entry exists already during page fault handling, just updating
> > TLB is fine.
> >
> > Here redefine flush_tlb_fix_spurious_fault as empty on MIPS system.
>
>  ÂÂ Need empty line here.
>
> > V6:
> > - Add update_mmu_tlb function as empty on all platform except mips
> > ÂÂ system, we use this function to update local tlb for page fault
> > ÂÂ smp-race handling
> > V5:
> > - define update_mmu_cache function specified on MIPS platform, and
> > ÂÂ add page fault smp-race stats info
> > V4:
> > - add pte_sw_mkyoung function to implement readable privilege, and
> >  this function is only in effect on MIPS system.
> > - add page valid bit judgement in function pte_modify
> > V3:
> > - add detailed changelog, modify typo issue in patch V2
> > v2:
> > - split flush_tlb_fix_spurious_fault and tlb update into two patches
> > - comments typo modification
> > - separate tlb update and add pte readable privilege into two patches
>
>  Â It was a bad idea to keep the version change log in the 1st patch only,
> we have either cover letter for that, or all the individual patches...

   Sorry for noticing this only now. With 4 patches, you should have a cover 
letter anyway...

> > Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx>
> [...]

MBR, Sergei