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94cfbd05e4
linux/arch/parisc/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 parisc: Add wrapper syscalls to fix O_NONBLOCK flag usage 2020-10-23 20:14:07 +02:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
alternative.c parisc: Refactor alternative code to accept multiple conditions 2020-04-05 22:50:40 +02:00
asm-offsets.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cache.c parisc: Rewrite tlb flush threshold calculation 2020-10-15 08:10:39 +02:00
compat_audit.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
drivers.c dma-mapping: split <linux/dma-mapping.h> 2020-10-06 07:07:03 +02:00
entry.S parisc: Fix comments and enable interrupts later 2020-10-15 08:10:38 +02:00
firmware.c parisc: firmware: Update references to parisc website 2020-06-01 23:02:11 +02:00
ftrace.c treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
hardware.c parisc: hardware: Update references to parisc website 2020-06-01 23:02:39 +02:00
head.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
hpmc.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 150 2019-05-30 11:25:19 -07:00
inventory.c parisc: Add qemu fw_cfg interface 2020-10-15 08:10:37 +02:00
irq.c parisc: Replace setup_irq() by request_irq() 2020-04-05 22:05:23 +02:00
jump_label.c parisc: Add static branch and JUMP_LABEL feature 2019-05-06 00:10:03 +02:00
kexec_file.c parisc: add support for kexec_file_load() syscall 2019-09-08 15:41:46 +02:00
kexec.c parisc: add support for kexec_file_load() syscall 2019-09-08 15:41:46 +02:00
kgdb.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00
kprobes.c parisc: kprobes: Use generic kretprobe trampoline handler 2020-09-08 11:52:33 +02:00
Makefile parisc: fix compilation when KEXEC=n and KEXEC_FILE=y 2019-12-15 21:05:38 +01:00
module.c mm: don't include asm/pgtable.h if linux/mm.h is already included 2020-06-09 09:39:13 -07:00
pa7300lc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pacache.S mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
parisc_ksyms.c parisc: Add assembly implementations for memset, strlen, strcpy, strncpy and strcat 2019-08-03 08:56:57 +02:00
patch.c parisc: add spinlock to patch function 2019-06-08 12:56:26 +02:00
pci-dma.c dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h> 2020-10-06 07:07:06 +02:00
pci.c parisc: Drop comments which are already in pci.h 2019-09-05 16:41:11 +02:00
pdc_chassis.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
pdc_cons.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
pdt.c parisc: Report bad pages as HardwareCorrupted 2020-07-28 11:19:17 +02:00
perf_asm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
perf_images.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
perf.c parisc/perf: open access for CAP_PERFMON privileged process 2020-04-16 12:19:08 -03:00
process.c sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
processor.c parisc: Replace cpu_up/down() with add/remove_cpu() 2020-03-25 12:59:36 +01:00
ptrace.c parisc: switch to ->regset_get() 2020-07-27 14:31:12 -04:00
real2.S parisc: Fix and improve kernel stack unwinding 2018-08-13 09:54:17 +02:00
relocate_kernel.S parisc: add kexec syscall support 2019-09-08 15:37:04 +02:00
setup.c arch/parisc/setup: Drop dummy_con initialization 2020-01-14 15:29:17 +01:00
signal32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
signal32.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
signal.c tracehook: clear TIF_NOTIFY_RESUME in tracehook_notify_resume() 2020-10-17 15:04:36 -06:00
smp.c parisc: Avoid external interrupts when IPI finishes 2020-10-15 08:10:37 +02:00
stacktrace.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
sys_parisc32.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sys_parisc.c parisc: Add wrapper syscalls to fix O_NONBLOCK flag usage 2020-10-23 20:14:07 +02:00
syscall.S parisc: Switch to more fine grained lws locks 2020-10-15 08:10:39 +02:00
time.c parisc: Improve error return codes when setting rtc time 2020-10-22 22:44:27 +02:00
topology.c parisc: Add CPU topology support 2017-11-17 15:27:22 +01:00
traps.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
unaligned.c Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2019-07-08 21:48:15 -07:00
unwind.c parisc: Use __ro_after_init in unwind.c 2019-05-10 21:00:45 +02:00
vmlinux.lds.S vmlinux.lds.h: Split ELF_DETAILS from STABS_DEBUG 2020-09-01 09:50:35 +02:00