Bibo Mao aba677f94b MIPS: do not call flush_tlb_all when setting pmd entry ...

Function set_pmd_at is to set pmd entry, if tlb entry need to be flushed,
there exists pmdp_huge_clear_flush alike function before set_pmd_at is
called.  So it is not necessary to call flush_tlb_all in this function.

In these scenarios, tlb for the pmd range needs to be flushed:

 - privilege degrade such as wrprotect is set on the pmd entry

 - pmd entry is cleared

 - there is exception if set_pmd_at is issued by dup_mmap, since
   flush_tlb_mm is called for parent process, it is not necessary to
   flush tlb in function copy_huge_pmd.

Link: http://lkml.kernel.org/r/1592990792-1923-3-git-send-email-maobibo@loongson.cn
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Daniel Silsby <dansilsby@gmail.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2021-02-24 13:38:32 -08:00

..

alpha

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

arc

arch: arc: Remove CONFIG_OPROFILE support

2021-01-22 12:12:03 +05:30

arm

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

2021-02-23 14:56:23 -08:00

arm64

kasan, arm64: allow using KUnit tests with HW_TAGS mode

2021-02-24 13:38:31 -08:00

csky

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

h8300

h8300: fix PREEMPTION build, TI_PRE_COUNT undefined

2021-02-13 11:42:40 -08:00

hexagon

hexagon: remove CONFIG_EXPERIMENTAL from defconfigs

2021-02-24 13:38:26 -08:00

ia64

mm: simplify parater of function memmap_init_zone()

2021-02-24 13:38:31 -08:00

m68k

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

microblaze

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

mips

MIPS: do not call flush_tlb_all when setting pmd entry

2021-02-24 13:38:32 -08:00

nds32

local64.h: make <asm/local64.h> mandatory

2020-12-29 15:36:49 -08:00

nios2

Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block

2020-12-16 12:33:35 -08:00

openrisc

openrisc: io: Add missing __iomem annotation to iounmap()

2021-01-20 06:14:26 +09:00

parisc

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

powerpc

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

riscv

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2021-02-20 17:45:32 -08:00

s390

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

sh

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

sparc

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

2021-02-23 15:09:53 -08:00

um

um: irq.h: include <asm-generic/irq.h>

2021-02-12 21:40:14 +01:00

x86

Merge tag 'clang-lto-v5.12-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2021-02-23 15:13:45 -08:00

xtensa

Merge tag 'idmapped-mounts-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2021-02-23 13:39:45 -08:00

.gitignore

…

Kconfig

Merge tag 'clang-lto-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

2021-02-23 09:28:51 -08:00