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linux/arch/riscv/kernel
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Tong Tiangen 2c152d9da8 riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for write killable 
[ Upstream commit 8bb0ab3ae7a4dbe6cf32deb830cf2bdbf5736867 ]

riscv architectures relying on mmap_sem for write in their
arch_setup_additional_pages. If the waiting task gets killed by the oom
killer it would block oom_reaper from asynchronous address space reclaim
and reduce the chances of timely OOM resolving.  Wait for the lock in
the killable mode and return with EINTR if the task got killed while
waiting.

Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Fixes: 76d2a0493a17 ("RISC-V: Init and Halt Code")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-10-13 10:04:29 +02:00
..
vdso
riscv: vdso: fix and clean-up Makefile
2021-06-10 13:39:22 +02:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
asm-offsets.c
riscv: Cleanup unnecessary define in asm-offset.c
2020-07-30 11:37:44 -07:00
cacheinfo.c
drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION()
2021-09-26 14:08:59 +02:00
cpu_ops_sbi.c
RISC-V: Support cpu hotplug
2020-03-31 11:28:30 -07:00
cpu_ops_spinwait.c
RISC-V: Add cpu_ops and modify default booting method
2020-03-31 11:25:56 -07:00
cpu_ops.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
cpu-hotplug.c
RISC-V: Support cpu hotplug
2020-03-31 11:28:30 -07:00
cpu.c
RISC-V: Rename and move plic_find_hart_id() to arch directory
2020-06-09 19:11:20 -07:00
cpufeature.c
RISC-V: Add bitmap reprensenting ISA features common across CPUs
2020-05-04 14:08:59 -07:00
efi-header.S
RISC-V: Add PE/COFF header for EFI stub
2020-10-02 14:31:16 -07:00
efi.c
RISC-V: Add EFI runtime services
2020-10-02 14:31:28 -07:00
entry.S
riscv,entry: fix misaligned base for excp_vect_table
2021-04-16 11:43:21 +02:00
fpu.S
riscv: abstract out CSR names for supervisor vs machine mode
2019-11-05 09:20:42 -08:00
ftrace.c
risc-v: kernel: ftrace: Fixes improper SPDX comment style
2020-11-04 13:28:20 -08:00
head.h
RISC-V: Move DT mapping outof fixmap
2020-10-02 14:30:57 -07:00
head.S
riscv: Set text_offset correctly for M-Mode
2020-11-05 17:32:27 -08:00
image-vars.h
RISC-V: Add PE/COFF header for EFI stub
2020-10-02 14:31:16 -07:00
irq.c
RISC-V: Remove do_IRQ() function
2020-06-09 19:11:24 -07:00
jump_label.c
riscv: Add jump-label implementation
2020-07-30 11:37:43 -07:00
kgdb.c
riscv: Fix "no previous prototype" compile warning in kgdb.c file
2020-07-09 20:09:30 -07:00
Makefile
riscv: Fixup patch_text panic in ftrace
2021-09-03 10:09:29 +02:00
mcount-dyn.S
riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support
2018-04-02 19:59:13 -07:00
mcount.S
riscv: Workaround mcount name prior to clang-13
2021-05-22 11:40:53 +02:00
module-sections.c
riscv: add missing header file includes
2019-10-28 00:46:01 -07:00
module.c
riscv: Support R_RISCV_ADD64 and R_RISCV_SUB64 relocs
2020-07-30 11:37:41 -07:00
patch.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00
perf_callchain.c
riscv: abstract out CSR names for supervisor vs machine mode
2019-11-05 09:20:42 -08:00
perf_event.c
riscv: perf_event: Make some funciton static
2020-05-11 13:48:19 -07:00
perf_regs.c
perf/arch: Remove perf_sample_data::regs_user_copy
2020-11-09 18:12:34 +01:00
process.c
sched/idle: Fix arch_cpu_idle() vs tracing
2020-11-24 16:47:35 +01:00
ptrace.c
riscv: Ensure the value of FP registers in the core dump file is up to date
2021-09-03 10:09:22 +02:00
reset.c
riscv: cleanup the default power off implementation
2019-11-13 13:22:52 -08:00
riscv_ksyms.c
riscv: Add KASAN support
2020-01-22 13:09:58 -08:00
sbi.c
RISC-V: Add mechanism to provide custom IPI operations
2020-08-20 10:55:40 -07:00
setup.c
RISC-V: Add missing jump label initialization
2020-11-25 09:44:25 -08:00
signal.c
tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume()
2020-10-17 15:04:36 -06:00
smp.c
RISC-V: Fix error code returned by riscv_hartid_to_cpuid()
2021-05-19 10:13:06 +02:00
smpboot.c
sched/core: Initialize the idle task with preemption disabled
2021-07-14 16:55:50 +02:00
soc.c
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
stacktrace.c
kernel: rename show_stack_loglvl() => show_stack()
2020-06-09 09:39:13 -07:00
sys_riscv.c
RISC-V: Don't allow write+exec only page mapping request in mmap
2020-06-18 17:28:53 -07:00
syscall_table.c
riscv: add missing header file includes
2019-10-28 00:46:01 -07:00
time.c
riscv: Fix kernel time_init()
2021-01-27 11:54:59 +01:00
traps_misaligned.c
riscv: Unaligned load/store handling for M_MODE
2020-04-03 10:45:33 -07:00
traps.c
RISC-V: Setup exception vector early
2020-07-30 11:37:48 -07:00
vdso.c
riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
2021-10-13 10:04:29 +02:00
vmlinux.lds.S
RISC-V Patches for the 5.10 Merge Window, Part 1
2020-10-19 18:18:30 -07:00