Ming Lei 9394c1c65e ARM: 7669/1: keep __my_cpu_offset consistent with generic one ...

Commit 14318efb(ARM: 7587/1: implement optimized percpu variable access)
introduces arm's __my_cpu_offset to optimize percpu vaiable access,
which really works well on hackbench, but will cause __my_cpu_offset
to return garbage value before it is initialized in cpu_init() called
by setup_arch, so accessing percpu variable before setup_arch may cause
kernel hang. But generic __my_cpu_offset always returns zero before
percpu area is brought up, and won't hang kernel.

So the patch tries to clear __my_cpu_offset on boot CPU early
to avoid boot hang.

At least now percpu variable is accessed by lockdep before
setup_arch(), and enabling CONFIG_LOCK_STAT or CONFIG_DEBUG_LOCKDEP
can trigger kernel hang.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2013-05-15 19:35:52 +01:00

..

.gitignore

[ARM] 5194/1: update .gitignore

2008-08-12 19:54:09 +01:00

arch_timer.c

ARM: convert arm/arm64 arch timer to use CLKSRC_OF init

2013-04-11 15:11:15 -05:00

armksyms.c

Merge branches 'audit', 'delay', 'fixes', 'misc' and 'sta2x11' into for-linus

2012-07-27 23:06:32 +01:00

arthur.c

[ARM] arm/kernel/arthur.c: add MODULE_LICENSE

2008-05-17 22:55:16 +01:00

asm-offsets.c

Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2013-05-05 14:47:31 -07:00

atags_compat.c

ARM: 7505/1: split out ATAGS parsing

2012-09-03 22:55:56 +01:00

atags_parse.c

ARM: 7505/1: split out ATAGS parsing

2012-09-03 22:55:56 +01:00

atags_proc.c

procfs: new helper - PDE_DATA(inode)

2013-04-09 14:13:32 -04:00

atags.h

ARM: 7506/1: allow for ATAGS to be configured out when DT support is selected

2012-09-03 22:56:15 +01:00

bios32.c

ARM: 7683/1: pci: add a align_resource hook

2013-04-03 16:56:11 +01:00

calls.S

ARM: 7665/1: Wire up kcmp syscall

2013-03-03 22:54:18 +00:00

cpuidle.c

cpuidle: Add common time keeping and irq enabling

2012-03-21 01:59:40 -04:00

crash_dump.c

crash_dump: export is_kdump_kernel to modules, consolidate elfcorehdr_addr, setup_elfcorehdr and saved_max_pfn

2011-03-23 19:47:19 -07:00

debug.S

ARM: compile fix for DEBUG_LL=y && MMU=n

2013-01-16 14:30:06 -08:00

devtree.c

ARM: default machine descriptor for multiplatform

2013-04-29 21:56:57 +02:00

dma-isa.c

ARM: dma-isa: request cascade channel after registering it

2009-12-24 18:34:08 +00:00

dma.c

locking, ARM: Annotate low level hw locks as raw

2011-09-13 11:12:14 +02:00

early_printk.c

early_printk: consolidate random copies of identical code

2013-04-29 18:28:13 -07:00

elf.c

Disintegrate asm/system.h for ARM

2012-03-28 18:30:01 +01:00

entry-armv.S

Merge branch 'cleanup' into for-linus

2013-05-02 21:31:29 +01:00

entry-common.S

Merge branches 'devel-stable', 'entry', 'fixes', 'mach-types', 'misc' and 'smp-hotplug' into for-linus

2013-05-02 21:30:36 +01:00

entry-header.S

Merge branches 'devel-stable', 'entry', 'fixes', 'mach-types', 'misc' and 'smp-hotplug' into for-linus

2013-05-02 21:30:36 +01:00

etm.c

ARM/etm/sysrq: fix inconstistent help message of sysrq key

2013-04-30 17:04:10 -07:00

fiq.c

ARM: fiq: change FIQ_START to a variable

2012-07-01 21:59:19 +08:00

fiqasm.S

ARM: 6938/1: fiq: Refactor {get,set}_fiq_regs() for Thumb-2

2011-05-26 10:31:06 +01:00

ftrace.c

ARM: 7468/1: ftrace: Trace function entry before updating index

2012-07-31 10:30:42 +01:00

head-common.S

ARM: make cr_alignment read-only #ifndef CONFIG_CPU_CP15

2013-01-31 21:44:45 +01:00

head-nommu.S

ARM: let CPUs not being able to run in ARM mode enter in THUMB mode

2013-01-31 21:44:46 +01:00

head.S

ARM: 7690/1: mm: fix CONFIG_LPAE typos

2013-04-03 16:45:51 +01:00

hw_breakpoint.c

ARM: 7697/1: hw_breakpoint: do not use __cpuinitdata for dbg_cpu_pm_nb

2013-04-17 16:54:06 +01:00

hyp-stub.S

ARM: virt: simplify __hyp_stub_install epilog

2013-01-10 21:08:55 +00:00

insn.c

ARM: fix missing bug.h include in arch/arm/kernel/insn.c

2012-03-30 11:51:46 +01:00

insn.h

ARM: 7334/1: add jump label support

2012-03-24 09:38:56 +00:00

io.c

arm: convert core files from module.h to export.h

2011-10-31 19:30:49 -04:00

irq.c

ARM: irq: Call irqchip_init if no init_irq function is specified

2013-04-02 11:05:40 -07:00

isa.c

sysctl: Drop & in front of every proc_handler.

2009-11-18 08:37:40 -08:00

iwmmxt.S

ARM: pxa: fix logic error in PJ4 iWMMXt handling

2011-08-11 10:10:26 +08:00

jump_label.c

ARM: 7334/1: add jump label support

2012-03-24 09:38:56 +00:00

kgdb.c

kgdb,arm: fix register dump

2010-10-29 13:14:40 -05:00

kprobes-arm.c

ARM: 7181/1: Restrict kprobes probing SWP instructions to ARMv5 and below

2011-11-30 23:54:54 +00:00

kprobes-common.c

Disintegrate asm/system.h for ARM

2012-03-28 18:30:01 +01:00

kprobes-test-arm.c

ARM: kprobes: make more tests conditional

2012-10-09 17:07:43 +02:00

kprobes-test-thumb.c

ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels

2011-11-26 21:58:53 +00:00

kprobes-test.c

treewide: fix printk typo in multiple drivers

2012-11-19 11:08:17 +01:00

kprobes-test.h

ARM: 7174/1: Fix build error in kprobes test code on Thumb2 kernels

2011-11-26 21:58:53 +00:00

kprobes-thumb.c

ARM: 7423/1: kprobes: run t32_simulate_ldr_literal() without insn slot

2012-06-14 15:11:44 +01:00

kprobes.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

kprobes.h

ARM: kprobes: Add exports for test code

2011-09-20 18:17:43 +00:00

machine_kexec.c

ARM: 7555/1: kexec: fix segment memory addresses check

2012-10-18 11:05:19 +01:00

Makefile

ARM: psci: add support for PSCI invocations from the kernel

2013-01-10 21:10:20 +00:00

module.c

ARM: 7059/1: LPAE: Use PMD_(SHIFT|SIZE|MASK) instead of PGDIR_*

2011-08-23 15:30:33 +01:00

opcodes.c

ARM: 7206/1: Add generic ARM instruction set condition code checks.

2011-12-13 08:52:02 +00:00

patch.c

ARM: 7332/1: extract out code patch function from kprobes

2012-03-24 09:38:55 +00:00

patch.h

ARM: 7332/1: extract out code patch function from kprobes

2012-03-24 09:38:55 +00:00

perf_event_cpu.c

ARM: perf: handle armpmu_register failing

2013-01-18 13:46:09 +00:00

perf_event_v6.c

ARM: perf: don't pretend to support counting of L1I writes

2013-01-16 12:01:59 +00:00

perf_event_v7.c

ARM: 7663/1: perf: fix ARMv7 EVTYPE_MASK to include NSH bit

2013-03-03 22:54:17 +00:00

perf_event_xscale.c

ARM: perf: don't pretend to support counting of L1I writes

2013-01-16 12:01:59 +00:00

perf_event.c

ARM: 7698/1: perf: fix group validation when using enable_on_exec

2013-04-17 16:54:07 +01:00

pj4-cp0.c

arm: remove several unnecessary module.h include instances

2011-10-31 19:30:48 -04:00

process.c

Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

2013-05-03 09:13:19 -07:00

psci.c

ARM: psci: add support for PSCI invocations from the kernel

2013-01-10 21:10:20 +00:00

ptrace.c

ARM: 7595/1: syscall: rework ordering in syscall_trace_exit

2012-12-11 00:18:26 +00:00

relocate_kernel.S

ARM: 7065/1: kexec: ensure new kernel is entered in ARM state

2011-08-28 10:39:41 +01:00

return_address.c

ARM: 7676/1: fix a wrong value returned from CALLER_ADDRn

2013-03-19 11:43:46 +00:00

sched_clock.c

Merge tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2013-05-07 11:22:14 -07:00

setup.c

ARM: 7669/1: keep __my_cpu_offset consistent with generic one

2013-05-15 19:35:52 +01:00

signal.c

arm: switch to struct ksignal * passing

2013-02-14 09:21:16 -05:00

signal.h

ARM: 7471/1: Revert "7442/1: Revert "remove unused restart trampoline""

2012-07-28 11:11:51 +01:00

sleep.S

Disintegrate asm/system.h for ARM

2012-03-28 18:30:01 +01:00

smp_scu.c

Merge branch 'for-next' of git://git.pengutronix.de/git/ukl/linux into devel-stable

2013-03-09 15:49:32 +00:00

smp_tlb.c

ARM: 7703/1: Disable preemption in broadcast_tlb*_a15_erratum()

2013-04-25 13:15:15 +01:00

smp_twd.c

ARM: smp_twd: convert to use CLKSRC_OF init

2013-03-11 08:42:08 -05:00

smp.c

Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm

2013-05-03 09:13:19 -07:00

stacktrace.c

arm: convert core files from module.h to export.h

2011-10-31 19:30:49 -04:00

suspend.c

ARM: 7661/1: mm: perform explicit branch predictor maintenance when required

2013-03-03 22:54:16 +00:00

swp_emulate.c

arm: single_open() leaks

2013-05-05 00:07:22 -04:00

sys_arm.c

arm: switch to generic fork/vfork/clone

2012-11-28 22:13:54 -05:00

sys_oabi-compat.c

userns: Convert stat to return values mapped from kuids and kgids

2012-05-15 14:08:35 -07:00

tcm.c

ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch()

2013-04-17 16:53:24 +01:00

thumbee.c

ARM: 7385/1: ThumbEE: Use cpuid macros to read ID_PFR0 for ThumbEE

2012-04-25 19:49:26 +01:00

time.c

ARM: make machine_desc->init_time default to clocksource_of_init

2013-04-11 15:11:14 -05:00

topology.c

arm: remove cast for kzalloc return value

2013-03-18 14:15:58 +01:00

traps.c

dump_stack: consolidate dump_stack() implementations and unify their behaviors

2013-04-30 17:04:02 -07:00

unwind.c

ARM: unwinder: fix bisection to find origin in .idx section

2011-12-15 14:02:19 -08:00

vmlinux.lds.S

ARM: KVM: enforce maximum size for identity mapped code

2013-04-28 22:23:09 -07:00

xscale-cp0.c

arm: remove several unnecessary module.h include instances

2011-10-31 19:30:48 -04:00