NestMMU pte upgrade workaround for mprotect
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b4 am [email protected]Versions newest first · linked by author and title
- v5 Latest5 patches 12 repliesIn review
- v45 patches 8 repliesSuperseded
- v35 patches 7 repliesSuperseded
Earlier versions · 2
| Version | Posted | Patches | Replies | Status |
|---|---|---|---|---|
| v2 | 5 patches | 4 replies | Superseded | |
| v1 | 5 patches | 0 replies | Superseded |
Changes in v5 from the cover letter
* Drop EXPORT_SYMBOL
Patches in v5 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/5 | mm: Update ptep_modify_prot_start/commit to take vm_area_struct as argarch/ arch/ arch/ +7 more | +35 | 1 reply | |
| 2/5 | mm: update ptep_modify_prot_commit to take old pte value as argarch/ arch/ arch/ +4 more | +17 | 2 replies | |
| 3/5 | arch/powerpc/mm: Nest MMU workaround for mprotect RW upgrade.arch/ arch/ arch/ +1 more | +65 | 2 replies | |
| 4/5 | mm/hugetlb: Add prot_modify_start/commit sequence for hugetlb updateinclude/ mm/ | +25 | 1 reply | |
| 5/5 | arch/powerpc/mm/hugetlb: NestMMU workaround for hugetlb mprotect RW upgradearch/ arch/ arch/ | +54 | 1 reply |
Reviews trailers per patch
2 of 5 patches have a Reviewed-by or Acked-by.
| Patch | Michael Ellerman |
|---|---|
| 1/5 | |
| 2/5 | |
| 3/5 | |
| 4/5 | R-b |
| 5/5 | R-b |
Trailers given in replies are filled; those carried in the patches from earlier versions are outlined with dashes.
Cover letter [PATCH V5 0/5] NestMMU pte upgrade workaround for mprotect
We can upgrade pte access (R -> RW transition) via mprotect. We need
to make sure we follow the recommended pte update sequence as outlined in commit bd5050e38aec ("powerpc/mm/radix: Change pte relax sequence to handle nest MMU hang") for such updates. This patch series do that.
Changes from V4:
* Drop EXPORT_SYMBOL
Changes from V3:
* Build fix for x86
Changes from V2:
* Update commit message for patch 4
* use radix tlb flush routines directly.
Changes from V1:
* Restrict ths only for R->RW upgrade. We don't need to do this for Autonuma
* Restrict this only for radix translation mode.
Aneesh Kumar K.V (5):
mm: Update ptep_modify_prot_start/commit to take vm_area_struct as arg
mm: update ptep_modify_prot_commit to take old pte value as arg arch/powerpc/mm: Nest MMU workaround for mprotect RW upgrade. mm/hugetlb: Add prot_modify_start/commit sequence for hugetlb update arch/powerpc/mm/hugetlb: NestMMU workaround for hugetlb mprotect RW
upgrade
arch/powerpc/include/asm/book3s/64/hugetlb.h | 12 ++++++++++ arch/powerpc/include/asm/book3s/64/pgtable.h | 18 ++++++++++++++ arch/powerpc/include/asm/book3s/64/radix.h | 4 ++++ arch/powerpc/mm/hugetlbpage-hash64.c | 25 ++++++++++++++++++++ arch/powerpc/mm/hugetlbpage-radix.c | 17 +++++++++++++ arch/powerpc/mm/pgtable-book3s64.c | 25 ++++++++++++++++++++ arch/powerpc/mm/pgtable-radix.c | 18 ++++++++++++++ arch/s390/include/asm/pgtable.h | 5 ++-- arch/s390/mm/pgtable.c | 8 ++++--- arch/x86/include/asm/paravirt.h | 13 +++++----- arch/x86/include/asm/paravirt_types.h | 5 ++-- arch/x86/xen/mmu.h | 4 ++-- arch/x86/xen/mmu_pv.c | 8 +++---- fs/proc/task_mmu.c | 8 ++++--- include/asm-generic/pgtable.h | 18 +++++++------- include/linux/hugetlb.h | 20 ++++++++++++++++ mm/hugetlb.c | 8 ++++--- mm/memory.c | 8 +++---- mm/mprotect.c | 6 ++--- 19 files changed, 189 insertions(+), 41 deletions(-)
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2.20.1