Bibo Mao
2d935fb063
hugetlb: clear huge pte during flush function on mips platform ...
[ Upstream commit 33ae8f801ad8bec48e886d368739feb2816478f2 ]
If multiple threads are accessing the same huge page at the same
time, hugetlb_cow will be called if one thread write the COW huge
page. And function huge_ptep_clear_flush is called to notify other
threads to clear the huge pte tlb entry. The other threads clear
the huge pte tlb entry and reload it from page table, the reload
huge pte entry may be old.
This patch fixes this issue on mips platform, and it clears huge
pte entry before notifying other threads to flush current huge
page entry, it is similar with other architectures.
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-07-20 16:21:06 +02:00
alpha: switch __copy_user() and __do_clean_user() to normal calling conventions
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ARC: entry: fix off-by-one error in syscall number validation
2021-05-22 10:40:31 +02:00
ARM: dts: at91: sama5d4: fix pinctrl muxing
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arm64: perf: Disable PMU while processing counter overflows
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pinctrl: adi2: Fix Kconfig build problem
2017-12-20 10:07:32 +01:00
futex: Remove duplicated code and fix undefined behaviour
2018-05-19 10:27:00 +02:00
h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
2021-02-23 13:59:16 +01:00
hexagon: work around compiler crash
2020-01-23 08:19:38 +01:00
ia64: mca_drv: fix incorrect array size calculation
2021-07-20 16:21:00 +02:00
m68k: q40: Fix info-leak in rtc_ioctl
2020-10-01 20:40:01 +02:00
microblaze: Prevent the overflow of the start
2020-02-28 15:42:42 +01:00
hugetlb: clear huge pte during flush function on mips platform
2021-07-20 16:21:06 +02:00
mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy
2018-02-17 13:21:20 +01:00
nios2: ksyms: Add missing symbol exports
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openrisc: Define memory barrier mb
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parisc: avoid a warning on u8 cast for cmpxchg on u8 pointers
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powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P1010 i2c controllers
2021-06-16 11:36:34 +02:00
s390: appldata depends on PROC_SYSCTL
2021-07-20 16:21:04 +02:00
sh: dma: fix kconfig dependency for G2_DMA
2021-01-30 13:27:15 +01:00
sparc32: fix a user-triggerable oops in clear_user()
2021-03-03 17:44:44 +01:00
locking/x86: Remove the unused atomic_inc_short() methd
2020-01-12 11:24:19 +01:00
um: Mark all kernel symbols as local
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x86/fpu: Reset state for all signal restore failures
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xtensa: disable preemption around cache alias management calls
2020-11-24 13:03:08 +01:00
cpu/hotplug: Provide knobs to control SMT
2018-08-15 18:14:46 +02:00
2d935fb063