linux-kernel - [PATCH 0/2] Request to test fix for "x86/Kconfig: select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE

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Message-Id: <20220422060107.781512-1-npiggin@gmail.com>
Date:   Fri, 22 Apr 2022 16:01:04 +1000
From:   Nicholas Piggin <npiggin@...il.com>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
Cc:     Nicholas Piggin <npiggin@...il.com>, x86@...nel.org,
        Song Liu <songliubraving@...com>,
        "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>,
        "Torvalds, Linus" <torvalds@...ux-foundation.org>,
        akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org
Subject: [PATCH 0/2] Request to test fix for "x86/Kconfig: select HAVE_ARCH_HUGE_VMALLOC with HAVE_ARCH_HUGE_VMAP)"

Hi Paul,

If it's not too much trouble would you be able to run your test case
https://lore.kernel.org/all/14444103-d51b-0fb3-ee63-c3f182f0b546@molgen.mpg.de/
on upstream tree plus these two patches to see if any errors persist?

To be clear, you shouldn't see such issues with upstream now, but I
would like to see if they are solved with this fix when we re-enable
huge vmalloc for drivers.

Thanks,
Nick

Nicholas Piggin (2):
  mm/vmalloc: huge vmalloc backing pages should be split rather than
    compound
  Revert "vmalloc: replace VM_NO_HUGE_VMAP with VM_ALLOW_HUGE_VMAP"

 arch/Kconfig                 |  6 ++--
 arch/powerpc/kernel/module.c |  2 +-
 arch/s390/kvm/pv.c           |  7 ++++-
 include/linux/vmalloc.h      |  4 +--
 mm/vmalloc.c                 | 53 +++++++++++++++++++-----------------
 5 files changed, 41 insertions(+), 31 deletions(-)

-- 
2.35.1