Huacai Chen e19b63d000 LoongArch: Set _PAGE_DIRTY only if _PAGE_WRITE is set in {pmd,pte}_mkdirty() ... commit bf2f34a506 upstream. Now {pmd,pte}_mkdirty() set _PAGE_DIRTY bit unconditionally, this causes random segmentation fault after commit 0ccf7f168e ("mm/thp: carry over dirty bit when thp splits on pmd"). The reason is: when fork(), parent process use pmd_wrprotect() to clear huge page's _PAGE_WRITE and _PAGE_DIRTY (for COW); then pte_mkdirty() set _PAGE_DIRTY as well as _PAGE_MODIFIED while splitting dirty huge pages; once _PAGE_DIRTY is set, there will be no tlb modify exception so the COW machanism fails; and at last memory corruption occurred between parent and child processes. So, we should set _PAGE_DIRTY only when _PAGE_WRITE is set in {pmd,pte}_ mkdirty(). Cc: stable@vger.kernel.org Cc: Peter Xu <peterx@redhat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-12-02 17:43:13 +01:00
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alpha
arc
arm	ARM: dts: imx6q-prti6q: Fix ref/tcxo-clock-frequency properties	2022-12-02 17:43:05 +01:00
arm64	arm64: dts: rockchip: lower rk3399-puma-haikou SD controller clock frequency	2022-12-02 17:43:10 +01:00
csky
hexagon
ia64
loongarch	LoongArch: Set _PAGE_DIRTY only if _PAGE_WRITE is set in {pmd,pte}_mkdirty()	2022-12-02 17:43:13 +01:00
m68k	m68k: Rework BI_VIRT_RNG_SEED as BI_RNG_SEED	2022-11-16 10:03:48 +01:00
microblaze
mips	MIPS: pic32: treat port as signed integer	2022-12-02 17:43:02 +01:00
nios2	nios2: add FORCE for vmlinuz.gz	2022-12-02 17:43:11 +01:00
openrisc
parisc	parisc: Avoid printing the hardware path twice	2022-11-10 18:17:36 +01:00
powerpc	powerpc/64e: Fix amdgpu build on Book3E w/o AltiVec	2022-11-26 09:27:19 +01:00
riscv	RISC-V: vdso: Do not add missing symbols to version section in linker script	2022-12-02 17:43:02 +01:00
s390	s390/crashdump: fix TOD programmable field size	2022-12-02 17:43:09 +01:00
sh
sparc
um
x86	x86/ioremap: Fix page aligned size calculation in __ioremap_caller()	2022-12-02 17:43:13 +01:00
xtensa
.gitignore
Kconfig