linux-kernel - [PATCH v7 0/4] MIPS: page fault handling optimization

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Message-Id: <1590546320-21814-1-git-send-email-maobibo@loongson.cn>
Date:   Wed, 27 May 2020 10:25:16 +0800
From:   Bibo Mao <maobibo@...ngson.cn>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Huacai Chen <chenhc@...ote.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Paul Burton <paulburton@...nel.org>,
        Dmitry Korotin <dkorotin@...ecomp.com>,
        Philippe Mathieu-Daudé <f4bug@...at.org>,
        Stafford Horne <shorne@...il.com>,
        Steven Price <steven.price@....com>,
        Anshuman Khandual <anshuman.khandual@....com>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
        "Maciej W. Rozycki" <macro@....com>, linux-mm@...ck.org,
        David Hildenbrand <david@...hat.com>
Subject: [PATCH v7 0/4] MIPS: page fault handling optimization

V7:
- define function flush_tlb_fix_spurious_fault as inline rather
  than macro
V6:
- Add update_mmu_tlb function as empty on all platform except mips
  system, we use this function to update local tlb for page fault
  smp-race handling
V5:
- define update_mmu_cache function specified on MIPS platform, and
  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

Bibo Mao (4):
  MIPS: Do not flush tlb page when updating PTE entry
  mm/memory.c: Update local TLB if PTE entry exists
  mm/memory.c: Add memory read privilege on page fault handling
  MIPS: mm: add page valid judgement in function pte_modify

 arch/mips/include/asm/pgtable.h | 37 +++++++++++++++++++++++++++++++++++--
 include/asm-generic/pgtable.h   | 33 +++++++++++++++++++++++++++++++++
 mm/memory.c                     | 30 ++++++++++++++++++++++--------
 3 files changed, 90 insertions(+), 10 deletions(-)

-- 
1.8.3.1