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linux/arch/ia64/kernel
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Peter Zijlstra 58c644ba51 sched/idle: Fix arch_cpu_idle() vs tracing 
We call arch_cpu_idle() with RCU disabled, but then use
local_irq_{en,dis}able(), which invokes tracing, which relies on RCU.

Switch all arch_cpu_idle() implementations to use
raw_local_irq_{en,dis}able() and carefully manage the
lockdep,rcu,tracing state like we do in entry.

(XXX: we really should change arch_cpu_idle() to not return with
interrupts enabled)

Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lkml.kernel.org/r/20201120114925.594122626@infradead.org
2020-11-24 16:47:35 +01:00
..
syscalls mm/madvise: introduce process_madvise() syscall: an external memory hinting API 2020-10-18 09:27:10 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
acpi-ext.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi.c ACPI/sleep: Convert acpi_wakeup_address into a function 2019-12-10 10:15:48 +01:00
asm-offsets.c y2038: vdso: change timespec to __kernel_old_timespec 2019-11-15 14:38:28 +01:00
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
brl_emu.c signal: Remove the task parameter from force_sig_fault 2019-05-29 09:31:43 -05:00
crash_dump.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crash.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
cyclone.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
dma-mapping.c dma-mapping: split <linux/dma-mapping.h> 2020-10-06 07:07:03 +02:00
efi_stub.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
efi.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
elfcore.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
entry.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
entry.S ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args 2020-06-23 10:49:56 +02:00
err_inject.c ia64/err-inject: fix spelling mistake: "capapbilities" -> "capabilities" 2018-03-05 14:44:53 -08:00
esi_stub.S treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
esi.c efi/ia64: Use existing helpers to locate ESI table 2020-02-23 21:59:42 +01:00
fsys.S docs: ia64: convert to ReST 2019-07-15 09:20:25 -03:00
fsyscall_gtod_data.h Stop ia64 being the last holdout using GENERIC_TIME_VSYSCALL_OLD 2017-11-13 12:15:40 -08:00
ftrace.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
gate-data.S
gate.lds.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
gate.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
head.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
ia64_ksyms.c ia64: fix min_low_pfn/max_low_pfn build errors 2020-09-01 19:34:11 +03:00
iosapic.c locking, arch/ia64: Reduce <asm/smp.h> header dependencies by moving XTP bits into the new <asm/xtp.h> header 2020-08-06 16:13:13 +02:00
irq_ia64.c ia64: Remove perfmon 2020-09-11 09:34:32 -07:00
irq_lsapic.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
irq.c locking, arch/ia64: Reduce <asm/smp.h> header dependencies by moving XTP bits into the new <asm/xtp.h> header 2020-08-06 16:13:13 +02:00
irq.h ia64: replace setup_irq() by request_irq() 2020-03-13 15:21:28 -07:00
ivt.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
kprobes.c ia64: kprobes: Use generic kretprobe trampoline handler 2020-09-08 11:52:33 +02:00
machine_kexec.c ia64: remove now unused machvec indirections 2019-08-16 11:33:57 -07:00
Makefile ia64: fix build error with !COREDUMP 2020-10-18 09:27:09 -07:00
Makefile.gate ia64: require -Wl,--hash-style=sysv 2019-05-18 11:29:01 +09:00
mca_asm.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
mca_drv_asm.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mca_drv.c ia64: remove support for machvecs 2019-08-16 14:32:26 -07:00
mca_drv.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mca.c kernel: rename show_stack_loglvl() => show_stack() 2020-06-09 09:39:13 -07:00
minstate.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
module.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
msi_ia64.c ia64: remove now unused machvec indirections 2019-08-16 11:33:57 -07:00
nr-irqs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
numa.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pal.S License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
palinfo.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
patch.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci-dma.c ia64 for v5.4 - big change here is removal of support for SGI Altix 2019-09-16 15:32:01 -07:00
perfmon_default_smpl.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
perfmon_generic.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perfmon_itanium.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perfmon_mckinley.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
perfmon_montecito.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
process.c sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
ptrace.c ia64: Remove perfmon 2020-09-11 09:34:32 -07:00
relocate_kernel.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
sal.c locking, arch/ia64: Reduce <asm/smp.h> header dependencies by moving XTP bits into the new <asm/xtp.h> header 2020-08-06 16:13:13 +02:00
salinfo.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
setup.c locking, arch/ia64: Reduce <asm/smp.h> header dependencies by moving XTP bits into the new <asm/xtp.h> header 2020-08-06 16:13:13 +02:00
sigframe.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
signal.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
smp.c A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
smpboot.c ia64: Remove perfmon 2020-09-11 09:34:32 -07:00
stacktrace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sys_ia64.c ia64: remove CONFIG_PCI ifdefs 2019-08-16 11:33:57 -07:00
time.c ia64: replace setup_irq() by request_irq() 2020-03-13 15:21:28 -07:00
topology.c ia64: remove CONFIG_ACPI ifdefs 2019-08-16 11:33:57 -07:00
traps.c signal: Remove the task parameter from force_sig_fault 2019-05-29 09:31:43 -05:00
unaligned.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
uncached.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
unwind_decoder.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unwind_i.h ia64: kernel: unwind_i.h: Replace zero-length array with flexible-array 2020-06-15 23:08:31 -05:00
unwind.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
vmlinux.lds.S vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG 2020-09-01 09:50:35 +02:00