linux/arch/riscv/kernel
Tong Tiangen 8bb0ab3ae7
riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for write killable
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: 76d2a0493a ("RISC-V: Init and Halt Code")
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-10-02 13:42:26 -07:00
..
probes riscv: kprobes: implement the branch instructions 2021-07-21 23:22:34 -07:00
vdso riscv/vdso: Move vdso data page up front 2021-10-02 13:42:25 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
asm-offsets.c riscv: Introduce structure that group all variables regarding kernel mapping 2021-07-05 18:04:00 -07:00
cacheinfo.c drivers: base: cacheinfo: Get rid of DEFINE_SMP_CALL_CACHE_FUNCTION() 2021-09-01 10:29:10 +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 riscv: Add __init section marker to some functions again 2021-05-29 13:39:27 -07:00
crash_dump.c RISC-V: Add crash kernel support 2021-04-26 08:25:24 -07:00
crash_save_regs.S RISC-V: Add kdump support 2021-04-26 08:25:23 -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: add VMAP_STACK overflow detection 2021-07-06 12:11:38 -07:00
fpu.S riscv: abstract out CSR names for supervisor vs machine mode 2019-11-05 09:20:42 -08:00
ftrace.c riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT 2021-01-14 15:09:05 -08:00
head.h RISC-V: enable XIP 2021-04-26 08:31:28 -07:00
head.S riscv: Introduce structure that group all variables regarding kernel mapping 2021-07-05 18:04:00 -07:00
image-vars.h arch/riscv:fix typo in a comment in arch/riscv/kernel/image-vars.h 2021-02-18 23:18:00 -08:00
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
kexec_relocate.S riscv: Introduce structure that group all variables regarding kernel mapping 2021-07-05 18:04:00 -07:00
kgdb.c riscv: Fix "no previous prototype" compile warning in kgdb.c file 2020-07-09 20:09:30 -07:00
machine_kexec.c RISC-V Patches for the 5.14 Merge Window, Part 1 2021-07-09 10:36:29 -07:00
Makefile riscv: kexec: do not add '-mno-relax' flag if compiler doesn't support it 2021-08-12 07:16:52 -07:00
mcount-dyn.S riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT 2021-01-14 15:09:05 -08:00
mcount.S riscv: Workaround mcount name prior to clang-13 2021-04-26 08:25:01 -07:00
module-sections.c riscv: add missing header file includes 2019-10-28 00:46:01 -07:00
module.c riscv: module: Create module allocations without exec permissions 2021-04-26 08:25:15 -07:00
patch.c riscv: Fixup compile error BUILD_BUG_ON failed 2021-01-14 15:09:01 -08:00
perf_callchain.c riscv: Make stack walk callback consistent with generic code 2020-11-20 18:53:38 -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 riscv: Turn has_fpu into a static key if FPU=y 2021-05-25 22:56:57 -07:00
ptrace.c riscv: Ensure the value of FP registers in the core dump file is up to date 2021-08-24 20:54:10 -07:00
reset.c riscv: cleanup the default power off implementation 2019-11-13 13:22:52 -08:00
riscv_ksyms.c riscv: provide memmove implementation 2020-12-10 17:27:54 -08:00
sbi.c RISC-V Patches for the 5.13 Merge Window, Part 1 2021-05-06 09:24:18 -07:00
setup.c RISC-V Patches for the 5.15 Merge Window, Part 1 2021-09-05 11:31:23 -07:00
signal.c riscv: Turn has_fpu into a static key if FPU=y 2021-05-25 22:56:57 -07:00
smp.c RISC-V: Fix error code returned by riscv_hartid_to_cpuid() 2021-05-01 08:53:19 -07:00
smpboot.c sched/core: Initialize the idle task with preemption disabled 2021-05-12 13:01:45 +02:00
soc.c riscv: Fix builtin DTB handling 2021-01-07 19:00:50 -08:00
stacktrace.c riscv: stacktrace: Fix NULL pointer dereference 2021-07-24 12:58:51 -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/vdso: Refactor asm/vdso.h 2021-10-02 13:42:23 -07:00
time.c RISC-V Patches for the 5.13 Merge Window, Part 1 2021-05-06 09:24:18 -07:00
traps_misaligned.c riscv: Unaligned load/store handling for M_MODE 2020-04-03 10:45:33 -07:00
traps.c trap: cleanup trap_init() 2021-09-08 11:50:27 -07:00
vdso.c riscv/vdso: make arch_setup_additional_pages wait for mmap_sem for write killable 2021-10-02 13:42:26 -07:00
vmlinux-xip.lds.S riscv: Move EXCEPTION_TABLE to RO_DATA segment 2021-09-10 23:59:48 -07:00
vmlinux.lds.S riscv: Move EXCEPTION_TABLE to RO_DATA segment 2021-09-10 23:59:48 -07:00