Douglas Anderson 8d539b84f1 nmi_backtrace: allow excluding an arbitrary CPU ... The APIs that allow backtracing across CPUs have always had a way to exclude the current CPU. This convenience means callers didn't need to find a place to allocate a CPU mask just to handle the common case. Let's extend the API to take a CPU ID to exclude instead of just a boolean. This isn't any more complex for the API to handle and allows the hardlockup detector to exclude a different CPU (the one it already did a trace for) without needing to find space for a CPU mask. Arguably, this new API also encourages safer behavior. Specifically if the caller wants to avoid tracing the current CPU (maybe because they already traced the current CPU) this makes it more obvious to the caller that they need to make sure that the current CPU ID can't change. [akpm@linux-foundation.org: fix trigger_allbutcpu_cpu_backtrace() stub] Link: https://lkml.kernel.org/r/20230804065935.v4.1.Ia35521b91fc781368945161d7b28538f9996c182@changeid Signed-off-by: Douglas Anderson <dianders@chromium.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: kernel test robot <lkp@intel.com> Cc: Lecopzer Chen <lecopzer.chen@mediatek.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Pingfan Liu <kernelfans@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-08-18 10:19:00 -07:00
..
book3s	powerpc/mm/book3s64/hash/4k: Add pmd_same callback for 4K page size	2023-07-10 09:47:47 +10:00
nohash	mm: remove __HAVE_ARCH_PTE_SWP_EXCLUSIVE	2023-02-02 22:33:11 -08:00
vdso	powerpc/64s: Make POWER10 and later use pause_short in cpu_relax loops	2022-09-28 19:22:10 +10:00
8xx_immap.h	…
Kbuild	char/agp: introduce asm-generic/agp.h	2023-02-13 22:13:29 +01:00
accounting.h	…
archrandom.h	Bitmap patches for v6.0-rc1	2022-08-07 17:52:35 -07:00
asm-compat.h	powerpc/vdso: augment VDSO32 functions to support 64 bits build	2022-02-12 22:47:43 +11:00
asm-const.h	…
asm-offsets.h	…
asm-prototypes.h	powerpc/64s: early boot machine check handler	2022-09-28 19:22:13 +10:00
asm.h	objtool/powerpc: Enable objtool to be built on ppc	2022-11-18 19:00:16 +11:00
async_tx.h	…
atomic.h	locking/atomic: make atomic*_{cmp,}xchg optional	2023-06-05 09:57:14 +02:00
backlight.h	…
barrier.h	powerpc/kcsan: Memory barriers semantics	2023-02-10 22:19:56 +11:00
bitops.h	powerpc: Don't hide eh field of lwarx behind a macro	2022-08-10 15:32:02 +10:00
bootx.h	…
bpf_perf_event.h	powerpc/bpf: Fix use of user_pt_regs in uapi	2022-06-29 20:43:04 +10:00
btext.h	…
bug.h	Revert "powerpc/bug: Provide better flexibility to WARN_ON/__WARN_FLAGS() with asm goto"	2023-07-17 10:35:28 +10:00
cache.h	powerpc: move the ARCH_DMA_MINALIGN definition to asm/cache.h	2023-06-19 16:19:24 -07:00
cacheflush.h	…
cell-pmu.h	…
cell-regs.h	…
checksum.h	powerpc: Use rol32() instead of opencoding in csum_fold()	2022-05-08 22:15:40 +10:00
clocksource.h	…
cmpxchg.h	locking/arch: Rename all internal __xchg() names to __arch_xchg()	2023-04-29 09:08:44 +02:00
code-patching-asm.h	…
code-patching.h	powerpc/code-patching: Remove protection against patching init addresses after init	2022-12-02 21:59:57 +11:00
compat.h	asm-generic: compat: Cleanup duplicate definitions	2022-04-26 13:35:54 -07:00
context_tracking.h	context_tracking: Split user tracking Kconfig	2022-06-29 17:04:09 -07:00
copro.h	…
cpm.h	…
cpm1.h	…
cpm2.h	…
cpu_has_feature.h	…
cpu_setup.h	powerpc/cputable: Move __cpu_setup() prototypes out of cputable.h	2022-09-26 22:26:49 +10:00
cpufeature.h	powerpc: Move Power10 feature PPC_MODULE_FEATURE_P10	2023-04-20 18:20:05 +08:00
cpuidle.h	…
cputable.h	powerpc/dexcr: Add initial Dynamic Execution Control Register (DEXCR) support	2023-06-19 17:36:25 +10:00
cputhreads.h	…
cputime.h	powerpc: remove the last remnants of cputime_t	2022-11-24 23:31:48 +11:00
crashdump-ppc64.h	…
current.h	…
dbdma.h	…
dbell.h	…
dcr-generic.h	…
dcr-mmio.h	…
dcr-native.h	…
dcr-regs.h	…
dcr.h	…
debug.h	powerpc: Allow clearing and restoring registers independent of saved breakpoint state	2022-11-30 21:46:48 +11:00
delay.h	…
device.h	powerpc/papr_scm: Add perf interface support	2022-03-09 17:50:50 -08:00
disassemble.h	…
dma-direct.h	…
dma.h	PCI: Move isa_dma_bridge_buggy out of asm/dma.h	2022-07-22 17:24:47 -05:00
drmem.h	powerpc: Add missing declaration in asm/drmem.h	2022-05-06 00:00:21 +10:00
dt_cpu_ftrs.h	…
dtl.h	powerpc/pseries: Move dtl scanning and steal time accounting to pseries platform	2022-09-05 14:14:27 +10:00
edac.h	…
eeh.h	powerpc/eeh: Remove unused inline functions	2022-05-04 21:44:02 +10:00
eeh_event.h	…
ehv_pic.h	…
elf.h	Revert "powerpc/64s: Remove support for ELFv1 little endian userspace"	2023-07-19 21:28:35 +10:00
elfnote.h	…
emergency-restart.h	…
emulated_ops.h	…
epapr_hcalls.h	powerpc/epapr: Fix parmeters typo	2022-02-03 21:35:56 +11:00
exception-64e.h	…
exception-64s.h	…
exec.h	…
extable.h	…
fadump-internal.h	powerpc/fadump: save CPU reg data in vmcore when PHYP terminates LPAR	2022-04-26 22:36:57 +10:00
fadump.h	…
fb.h	arch/powerpc: Implement <asm/fb.h> with generic helpers	2023-04-20 10:05:05 +02:00
feature-fixups.h	…
firmware.h	powerpc/pseries: Add FW_FEATURE_PLPKS feature flag	2023-04-20 13:21:46 +10:00
fixmap.h	powerpc/fixmap: Fix VM debug warning on unmap	2022-01-24 17:29:05 +11:00
floppy.h	…
fs_pd.h	…
fsl_gtm.h	…
fsl_hcalls.h	…
fsl_lbc.h	…
fsl_pamu_stash.h	…
fsl_pm.h	…
ftrace.h	powerpc updates for 6.2	2022-12-19 07:13:33 -06:00
futex.h	…
grackle.h	…
hardirq.h	…
head-64.h	…
heathrow.h	…
highmem.h	…
hmi.h	…
hugetlb.h	powerpc: Remove CONFIG_PPC_FSL_BOOK3E	2022-09-26 23:00:13 +10:00
hvcall.h	powerpc/pseries: Implement signed update for PLPKS objects	2023-02-12 22:12:38 +11:00
hvconsole.h	…
hvcserver.h	…
hvsi.h	…
hw_breakpoint.h	…
hw_irq.h	Merge branch 'fixes' into next	2023-02-12 22:11:56 +11:00
hydra.h	…
i8259.h	…
ibmebus.h	…
icswx.h	…
ide.h	…
idle.h	powerpc/pseries: Always inline functions called from cpuidle	2023-04-20 13:21:49 +10:00
imc-pmu.h	powerpc/imc-pmu: Fix use of mutex in IRQs disabled section	2023-01-11 18:29:09 +11:00
immap_cpm2.h	…
inst.h	powerpc/64: Drop ppc_inst_as_str()	2022-06-29 19:37:07 +10:00
interrupt.h	powerpc: Consolidate 32-bit and 64-bit interrupt_enter_prepare	2023-02-10 22:17:35 +11:00
io-defs.h	…
io-workarounds.h	…
io.h	powerpc/64: Add support to build with prefixed instructions	2023-04-20 12:54:22 +10:00
io_event_irq.h	…
iommu.h	powerpc/iommu: Remove iommu_del_device()	2023-05-17 00:51:06 +10:00
ipic.h	…
irq.h	nmi_backtrace: allow excluding an arbitrary CPU	2023-08-18 10:19:00 -07:00
irq_work.h	…
irqflags.h	powerpc/64: Remove asm interrupt tracing call helpers	2022-12-02 17:54:07 +11:00
isa-bridge.h	…
jump_label.h	…
kasan.h	kasan, powerpc: don't rename memintrinsics if compiler adds prefixes	2023-03-23 17:18:33 -07:00
kdebug.h	…
kdump.h	…
kexec.h	powerpc: Remove CONFIG_FSL_BOOKE	2022-09-26 22:47:37 +10:00
kexec_ranges.h	powerpc/64s: Fix build failure when CONFIG_PPC_64S_HASH_MMU is not set	2022-03-05 20:42:21 +11:00
keylargo.h	…
kfence.h	powerpc/64s: Enable KFENCE on book3s64	2022-09-28 19:22:10 +10:00
kgdb.h	powerpc: Change CONFIG_E500 to CONFIG_PPC_E500	2022-09-26 23:00:13 +10:00
kprobes.h	powerpc/probes: Remove ppc_opcode_t	2022-07-27 21:36:05 +10:00
kup.h	powerpc/kuap: Remove unused inline function __kuap_assert_locked()	2022-05-04 19:37:46 +10:00
kvm_asm.h	…
kvm_book3s.h	KVM: PPC: Book3s HV: Remove unused function kvmppc_bad_interrupt	2022-07-20 22:28:12 +10:00
kvm_book3s_32.h	…
kvm_book3s_64.h	KVM: Rename mmu_notifier_* to mmu_invalidate_*	2022-08-19 04:05:41 -04:00
kvm_book3s_asm.h	powerpc/kvm: Remove unused references for MMCR3/SIER2/SIER3 registers	2022-11-24 23:31:47 +11:00
kvm_book3s_uvmem.h	…
kvm_booke.h	…
kvm_booke_hv_asm.h	…
kvm_fpu.h	…
kvm_guest.h	…
kvm_host.h	KVM: PPC: Fetch prefixed instructions from the guest	2023-04-03 15:45:50 +10:00
kvm_para.h	…
kvm_ppc.h	powerpc: Mark writes registering ipi to host cpu through kvm and polling	2023-06-21 15:13:57 +10:00
libata-portmap.h	…
linkage.h	powerpc: Override __ALIGN and __ALIGN_STR macros	2022-11-15 20:11:47 +11:00
livepatch.h	livepatch: Remove klp_arch_set_pc() and asm/livepatch.h	2022-05-24 08:46:37 +02:00
local.h	locking/arch: Wire up local_try_cmpxchg()	2023-04-29 09:09:16 +02:00
lppaca.h	powerpc/pseries: Add wait interval counter definitions to struct lppaca	2022-09-04 22:39:59 +10:00
lv1call.h	…
machdep.h	powerpc/machdep: Define 'compatible' property in ppc_md and use it	2023-03-15 00:52:10 +11:00
macio.h	…
mc146818rtc.h	…
mce.h	powerpc/mce: Avoid using irq_work_queue() in realmode	2022-03-08 00:05:00 +11:00
mediabay.h	…
mem_encrypt.h	…
membarrier.h	…
mman.h	powerpc: Include asm/firmware.h in all users of firmware_has_feature()	2022-06-29 16:45:05 +10:00
mmiowb.h	…
mmu.h	powerpc: Ignore DSI error caused by the copy/paste instruction	2022-09-28 22:52:32 +10:00
mmu_context.h	cxl: Use radix__flush_all_mm instead of generic flush_all_mm	2022-11-30 21:46:48 +11:00
mmzone.h	…
module.h	powerpc/64: modules support building with PCREL addresing	2023-04-20 13:21:42 +10:00
module.lds.h	…
mpc5xxx.h	powerpc/mpc5xxx: Switch mpc5xxx_get_bus_frequency() to use fwnode	2022-06-22 12:51:49 +10:00
mpc6xx.h	…
mpc52xx.h	powerpc: Drop MPC5200 LocalPlus bus FIFO driver	2023-05-15 23:25:56 +10:00
mpc52xx_psc.h	…
mpc85xx.h	…
mpc5121.h	…
mpc8260.h	powerpc: drop MPC8272-ADS and PowerQUICC II FADS shared code.	2023-04-20 13:21:48 +10:00
mpic.h	…
mpic_msgr.h	…
mpic_timer.h	…
msi_bitmap.h	…
nmi.h	powerpc: move arch_trigger_cpumask_backtrace from nmi.h to irq.h	2023-06-23 17:04:04 -07:00
nvram.h	…
ohare.h	…
opal-api.h	…
opal.h	powerpc/powernv/pci: Remove MVE code	2023-06-21 15:13:57 +10:00
paca.h	powerpc: powernv: Fix KCSAN datarace warnings on idle_state contention	2023-06-21 15:13:57 +10:00
page.h	mm, arch: add generic implementation of pfn_valid() for FLATMEM	2023-02-09 16:51:41 -08:00
page_32.h	powerpc: move the ARCH_DMA_MINALIGN definition to asm/cache.h	2023-06-19 16:19:24 -07:00
page_64.h	…
papr-sysparm.h	powerpc/pseries: PAPR system parameter API	2023-02-13 22:35:03 +11:00
paravirt.h	powerpc/pseries: Implement CONFIG_PARAVIRT_TIME_ACCOUNTING	2022-09-05 14:14:02 +10:00
paravirt_api_clock.h	powerpc/pseries: Implement CONFIG_PARAVIRT_TIME_ACCOUNTING	2022-09-05 14:14:02 +10:00
parport.h	powerpc: Don't include asm/prom.h in asm/parport.h	2022-05-06 00:00:20 +10:00
pasemi_dma.h	…
pci-bridge.h	powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains	2023-03-15 00:51:46 +11:00
pci.h	powerpc updates for 6.0	2022-08-06 16:38:17 -07:00
percpu.h	…
perf_event.h	…
perf_event_fsl_emb.h	…
perf_event_server.h	…
pgalloc.h	…
pgtable-be-types.h	powerpc: Rely on generic definition of hugepd_t and is_hugepd when unused	2022-09-26 20:58:18 +10:00
pgtable-types.h	powerpc: Rely on generic definition of hugepd_t and is_hugepd when unused	2022-09-26 20:58:18 +10:00
pgtable.h	procfs: consolidate arch_report_meminfo declaration	2023-05-17 09:24:49 +02:00
pkeys.h	…
plpar_wrappers.h	powerpc/irq: Replace #ifdefs by IS_ENABLED()	2022-06-29 16:57:09 +10:00
plpks.h	powerpc/pseries: Pass PLPKS password on kexec	2023-02-12 22:12:39 +11:00
pmac_feature.h	powerpc/machdep: Move sys_ctrler_t definition into pmac_feature.h	2022-02-07 21:02:20 +11:00
pmac_low_i2c.h	…
pmac_pfunc.h	…
pmc.h	…
pmi.h	…
pnv-ocxl.h	…
pnv-pci.h	powerpc: Add missing headers	2022-05-08 22:15:40 +10:00
powernv.h	…
ppc-opcode.h	powerpc/dexcr: Handle hashchk exception	2023-06-19 17:36:26 +10:00
ppc-pci.h	powerpc/fsl_uli1575: Mark uli_exclude_device() as static	2023-04-20 10:20:50 +10:00
ppc4xx.h	…
ppc_asm.h	powerpc: merge 32-bit and 64-bit _switch implementation	2023-06-15 14:03:55 +10:00
probes.h	powerpc/ppc-opcode: Define and use PPC_RAW_TRAP() and PPC_RAW_TW()	2022-07-27 21:36:05 +10:00
processor.h	powerpc/dexcr: Support userspace ROP protection	2023-06-19 17:36:26 +10:00
prom.h	powerpc: export the CPU node count	2022-12-07 20:14:49 +11:00
ps3.h	driver core: fixup for "driver core: make struct bus_type.uevent() take a const *"	2023-01-30 17:02:03 +01:00
ps3av.h	powerpc/ps3: remove orphan declarations from ps3av.h	2022-09-15 22:55:46 +10:00
ps3gpu.h	…
ps3stor.h	…
pte-walk.h	powerpc: Remove find_current_mm_pte()	2022-11-24 23:12:18 +11:00
ptrace.h	powerpc: Mark [h]ssr_valid accesses in check_return_regs_valid	2023-06-21 15:13:57 +10:00
qspinlock.h	powerpc/qspinlock: add compile-time tuning adjustments	2022-12-02 17:48:50 +11:00
qspinlock_types.h	powerpc/qspinlock: provide accounting and options for sleepy locks	2022-12-02 17:48:50 +11:00
reg.h	powerpc/dexcr: Add initial Dynamic Execution Control Register (DEXCR) support	2023-06-19 17:36:25 +10:00
reg_8xx.h	…
reg_a2.h	…
reg_booke.h	powerpc: Change CONFIG_E500 to CONFIG_PPC_E500	2022-09-26 23:00:13 +10:00
reg_fsl_emb.h	…
rheap.h	…
rio.h	…
rtas-types.h	powerpc/rtas: ensure 8-byte alignment for struct rtas_args	2023-03-30 23:36:34 +11:00
rtas-work-area.h	powerpc/pseries: add RTAS work area allocator	2023-02-13 22:35:02 +11:00
rtas.h	powerpc/rtas: introduce rtas_function_token() API	2023-02-13 22:35:03 +11:00
runlatch.h	powerpc/64s: Fix irq state management in runlatch functions	2022-09-28 19:22:11 +10:00
seccomp.h	…
sections.h	powerpc/64: vmlinux support building with PCREL addresing	2023-04-20 12:59:21 +10:00
secure_boot.h	…
security_features.h	…
secvar.h	powerpc/secvar: Allow backend to populate static list of variable names	2023-02-12 22:12:37 +11:00
serial.h	…
set_memory.h	powerpc: Add set_memory_{p/np}() and remove set_memory_attr()	2022-02-12 22:47:42 +11:00
setjmp.h	…
setup.h	powerpc: Add hardware description string	2022-09-30 18:35:52 +10:00
sfp-machine.h	…
shmparam.h	…
signal.h	powerpc/signal: Report minimum signal frame size to userspace via AT_MINSIGSTKSZ	2022-05-19 23:11:26 +10:00
simple_spinlock.h	powerpc/kcsan: Properly instrument arch_spin_unlock()	2023-06-09 23:29:51 +10:00
simple_spinlock_types.h	…
smp.h	powerpc/cpu: Mark start_secondary_resume() __noreturn	2023-03-08 08:44:24 -08:00
smu.h	…
sparsemem.h	…
spinlock.h	powerpc/qspinlock: powerpc qspinlock implementation	2022-12-02 17:48:02 +11:00
spinlock_types.h	powerpc/qspinlock: powerpc qspinlock implementation	2022-12-02 17:48:02 +11:00
spu.h	powerpc: declare unmodified attribute_group usages const	2022-03-08 22:15:32 +11:00
spu_csa.h	…
spu_info.h	…
spu_priv1.h	…
sstep.h	…
stackprotector.h	stackprotector: actually use get_random_canary()	2022-11-18 02:18:10 +01:00
stacktrace.h	…
static_call.h	static_call: Properly initialise DEFINE_STATIC_CALL_RET0()	2022-04-05 09:59:38 +02:00
string.h	kasan, powerpc: don't rename memintrinsics if compiler adds prefixes	2023-03-23 17:18:33 -07:00
svm.h	powerpc updates for 5.19	2022-05-28 11:27:17 -07:00
swab.h	…
swiotlb.h	swiotlb: add a SWIOTLB_ANY flag to lift the low memory restriction	2022-04-18 07:21:12 +02:00
switch_to.h	powerpc: Fix missing declaration of [en/dis]able_kernel_altivec()	2022-05-04 19:37:46 +10:00
synch.h	powerpc: Change CONFIG_E500 to CONFIG_PPC_E500	2022-09-26 23:00:13 +10:00
syscall.h	powerpc: Provide syscall wrapper	2022-09-28 19:22:09 +10:00
syscall_wrapper.h	powerpc: Don't add __powerpc_ prefix to syscall entry points	2022-10-07 00:59:54 +11:00
syscalls.h	powerpc/32: fix syscall wrappers with 64-bit arguments	2022-11-01 10:24:09 +11:00
syscalls_32.h	powerpc: Include all arch-specific syscall prototypes	2022-09-28 19:22:08 +10:00
task_size_32.h	…
task_size_64.h	powerpc/mm: Use generic_get_unmapped_area() and call it from arch_get_unmapped_area()	2022-05-05 22:11:57 +10:00
tce.h	…
thread_info.h	Revert "powerpc/64s: Remove support for ELFv1 little endian userspace"	2023-07-19 21:28:35 +10:00
time.h	powerpc/pseries: Move dtl scanning and steal time accounting to pseries platform	2022-09-05 14:14:27 +10:00
timex.h	powerpc: define get_cycles macro for arch-override	2022-05-13 23:59:23 +02:00
tlb.h	mmu_gather: Remove per arch tlb_{start,end}_vma()	2022-07-21 10:50:13 -07:00
tlbflush.h	…
tm.h	…
topology.h	powerpc/numa: Associate numa node to its cpu earlier	2022-05-22 15:58:30 +10:00
trace.h	powerpc/tracing: tracepoints for RTAS entry and exit	2023-02-13 22:35:02 +11:00
trace_clock.h	…
tsi108.h	…
tsi108_irq.h	…
tsi108_pci.h	…
types.h	powerpc: Finalise cleanup around ABI use	2022-05-19 23:11:29 +10:00
uaccess.h	powerpc/64: Add support to build with prefixed instructions	2023-04-20 12:54:22 +10:00
udbg.h	powerpc/udbg: Remove extern function prototypes	2022-09-28 19:22:14 +10:00
uic.h	…
ultravisor-api.h	…
ultravisor.h	…
uninorth.h	…
unistd.h	powerpc: Use generic fallocate compatibility syscall	2022-09-26 23:00:15 +10:00
uprobes.h	powerpc/probes: Remove ppc_opcode_t	2022-07-27 21:36:05 +10:00
user.h	asm/user.h: killed unused macros	2022-01-30 21:17:00 -05:00
vas.h	powerpc/powernv/vas: Assign real address to rx_fifo in vas_rx_win_attr	2022-05-22 15:58:27 +10:00
vdso.h	powerpc/vdso: Don't map VDSO at a fixed address on PPC32	2022-08-22 13:36:59 +10:00
vdso_datapage.h	…
vermagic.h	…
vga.h	…
vio.h	vio: move to_vio_dev() to use container_of_const()	2023-01-27 13:45:41 +01:00
vmalloc.h	…
word-at-a-time.h	powerpc: Don't include asm/ppc_asm.h in other headers	2022-06-29 16:45:13 +10:00
xics.h	powerpc/sysdev: remove unused xics_ipi_dispatch() declaration	2022-09-15 22:55:46 +10:00
xive-regs.h	…
xive.h	…
xmon.h	…
xor.h	…
xor_altivec.h	lib/xor: make xor prototypes more friendly to compiler vectorization	2022-02-11 20:39:39 +11:00