From: Martin Schwidefsky <schwidefsky@de.ibm.com>
To: Li Wang <liwang@redhat.com>, Guenter Roeck <linux@roeck-us.net>,
Janosch Frank <frankja@linux.vnet.ibm.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
Linux-MM <linux-mm@kvack.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Subject: [PATCH 0/4] pgtable bytes mis-accounting v3
Date: Wed, 31 Oct 2018 13:59:57 +0100 [thread overview]
Message-ID: <1540990801-4261-1-git-send-email-schwidefsky@de.ibm.com> (raw)
Greetings,
version #3 of the fix for the pgtable_bytes mis-accounting problem
on s390. Three times is a charm..
Changes v2 -> v3:
- Add a fourth patch to redefine __PAGETABLE_PxD_FOLDED as non-empty
- Move mm_pxd_folded() to include/asm-generic/pgtable.h and use
__is_defined() again with the redefined __PAGETABLE_PxD_FOLDED
- Add a missing mm_inc_nr_puds() in arch/s390/mm/pgalloc.c
Changes v1 -> v2:
- Split the patch into three parts, one patch to add the mm_pxd_folded
helpers, one patch to use to the helpers in mm_[dec|inc]_nr_[pmds|puds]
and finally the fix for s390.
- Drop the use of __is_defined, it does not work with the
__PAGETABLE_PxD_FOLDED defines
- Do not change the basic #ifdef'ery in mm.h, just add the calls
to mm_pxd_folded to the pgtable_bytes accounting functions. This
fixes the compile error on alpha (and potentially on other archs).
Martin Schwidefsky (4):
mm: make the __PAGETABLE_PxD_FOLDED defines non-empty
mm: introduce mm_[p4d|pud|pmd]_folded
mm: add mm_pxd_folded checks to pgtable_bytes accounting functions
s390/mm: fix mis-accounting of pgtable_bytes
arch/arm/include/asm/pgtable-2level.h | 2 +-
arch/m68k/include/asm/pgtable_mm.h | 4 ++--
arch/microblaze/include/asm/pgtable.h | 2 +-
arch/nds32/include/asm/pgtable.h | 2 +-
arch/parisc/include/asm/pgtable.h | 2 +-
arch/s390/include/asm/mmu_context.h | 5 -----
arch/s390/include/asm/pgalloc.h | 6 +++---
arch/s390/include/asm/pgtable.h | 18 ++++++++++++++++++
arch/s390/include/asm/tlb.h | 6 +++---
arch/s390/mm/pgalloc.c | 1 +
include/asm-generic/4level-fixup.h | 2 +-
include/asm-generic/5level-fixup.h | 2 +-
include/asm-generic/pgtable-nop4d-hack.h | 2 +-
include/asm-generic/pgtable-nop4d.h | 2 +-
include/asm-generic/pgtable-nopmd.h | 2 +-
include/asm-generic/pgtable-nopud.h | 2 +-
include/asm-generic/pgtable.h | 16 ++++++++++++++++
include/linux/mm.h | 8 ++++++++
18 files changed, 61 insertions(+), 23 deletions(-)
--
2.7.4
next reply other threads:[~2018-10-31 13:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-31 12:59 Martin Schwidefsky [this message]
2018-10-31 12:59 ` [PATCH 1/4] mm: make the __PAGETABLE_PxD_FOLDED defines non-empty Martin Schwidefsky
2018-10-31 13:23 ` Kirill A. Shutemov
2018-10-31 12:59 ` [PATCH 2/4] mm: introduce mm_[p4d|pud|pmd]_folded Martin Schwidefsky
2018-10-31 13:23 ` Kirill A. Shutemov
2018-10-31 13:00 ` [PATCH 3/4] mm: add mm_pxd_folded checks to pgtable_bytes accounting functions Martin Schwidefsky
2018-10-31 13:00 ` [PATCH 4/4] s390/mm: fix mis-accounting of pgtable_bytes Martin Schwidefsky
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