[v2,0/6] mrermap fixes

Message

Aneesh Kumar K.V June 16, 2021, 4:52 a.m. UTC

This patch series is split out series from [PATCH v7 00/11] Speedup mremap on ppc64
(https://lore.kernel.org/linux-mm/[e-mail])
dropping ppc64 specific changes.

This patchset is dependent on
https://lore.kernel.org/linux-mm/[e-mail]

ppc64 specific changes will be sent as a separate series depending on this patchset.

Changes from v1:
* cc [e-mail]
* USe the correct config for TRANSPARENT_HUGEPAGE_PUD
* use pud_pgtable instead of pud_page_vaddr


Aneesh Kumar K.V (6):
  selftest/mremap_test: Update the test to handle pagesize other than 4K
  selftest/mremap_test: Avoid crash with static build
  mm/mremap: Convert huge PUD move to separate helper
  mm/mremap: Don't enable optimized PUD move if page table levels is 2
  mm/mremap: Use pmd/pud_poplulate to update page table entries
  mm/mremap: hold the rmap lock in write mode when moving page table
    entries.

 mm/mremap.c                              |  92 +++++++++++++++---
 tools/testing/selftests/vm/mremap_test.c | 118 ++++++++++++-----------
 2 files changed, 142 insertions(+), 68 deletions(-)

Comments

Linus Torvalds June 16, 2021, 2:39 p.m. UTC | #1

On Tue, Jun 15, 2021 at 9:53 PM Aneesh Kumar K.V
<[e-mail]> wrote:
>
> This patch series is split out series from [PATCH v7 00/11] Speedup mremap on ppc64
> (https://lore.kernel.org/linux-mm/[e-mail])
> dropping ppc64 specific changes.

Both this and the followup powerpc enablement looks ok to me. Apart
from the obvious subject line bug ;)

Do we have robot confirmation that this version doesn't have any
performance regression?

              Linus

Andrew Morton June 17, 2021, 1 a.m. UTC | #2

On Wed, 16 Jun 2021 10:22:33 +0530 "Aneesh Kumar K.V" <[e-mail]> wrote:

> This patch series is split out series from [PATCH v7 00/11] Speedup mremap on ppc64
> (https://lore.kernel.org/linux-mm/[e-mail])
> dropping ppc64 specific changes.
> 
> This patchset is dependent on
> https://lore.kernel.org/linux-mm/[e-mail]

Which I just dropped because of all the build breakages :(