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Nicholas Piggin e44f2afdee powerpc: select ARCH_WANT_IRQS_OFF_ACTIVATE_MM 
[ Upstream commit 66acd46080bd9e5ad2be4b0eb1d498d5145d058e ]

powerpc uses IPIs in some situations to switch a kernel thread away
from a lazy tlb mm, which is subject to the TLB flushing race
described in the changelog introducing ARCH_WANT_IRQS_OFF_ACTIVATE_MM.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200914045219.3736466-3-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2021-03-16 16:39:40 +08:00
..
alpha alpha: fix annotation of io{read,write}{16,32}be() 2021-03-16 16:34:34 +08:00
arc arc: plat-hsdk: fix kconfig dependency warning when !RESET_CONTROLLER 2021-03-16 16:38:50 +08:00
arm ARM: dts: meson8: remove two invalid interrupt lines from the GPU node 2021-03-16 16:39:09 +08:00
arm64 arm64: link with -z norelro regardless of CONFIG_RELOCATABLE 2021-03-16 16:39:28 +08:00
c6x Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
csky csky: Fixup abiv2 syscall_trace break a4 & a5 2021-03-16 16:28:56 +08:00
h8300 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
hexagon hexagon: define ioremap_uc 2021-03-16 16:27:29 +08:00
ia64 mm: replace memmap_context by meminit_context 2021-03-16 16:37:50 +08:00
m68k m68k: q40: Fix info-leak in rtc_ioctl 2021-03-16 16:36:33 +08:00
microblaze Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
mips MIPS: Add the missing 'CPU_1074K' into __get_cpu_type() 2021-03-16 16:37:36 +08:00
nds32 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
nios2 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
openrisc openrisc: Fix issue with get_user for 64-bit values 2021-03-16 16:39:36 +08:00
parisc kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables 2021-03-16 16:35:20 +08:00
powerpc powerpc: select ARCH_WANT_IRQS_OFF_ACTIVATE_MM 2021-03-16 16:39:40 +08:00
riscv RISC-V: Take text_mutex in ftrace_init_nop() 2021-03-16 16:37:30 +08:00
s390 mm/gup: fix gup_fast with dynamic page table folding 2021-03-16 16:37:40 +08:00
sh sh: landisk: Add missing initialization of sh_io_port_base 2021-03-16 16:34:22 +08:00
sparc scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled 2021-03-16 16:31:54 +08:00
um um: ensure `make ARCH=um mrproper` removes arch/$(SUBARCH)/include/generated/ 2021-03-16 16:27:11 +08:00
unicore32 Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
x86 x86/unwind/orc: Fix inactive tasks with stack pointer in %sp on GCC 10 compiled kernels 2021-03-16 16:39:39 +08:00
xtensa xtensa: fix system_call interaction with ptrace 2021-03-16 16:36:42 +08:00
.gitignore Init Repo base on linux 5.4.32 long term, and add base tlinux kernel interfaces. 2021-03-16 11:01:34 +08:00
Kconfig mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race 2021-03-16 16:39:40 +08:00