Peter Zijlstra fe44d62122 sched: Fix the irqtime code to deal with u64 wraps ...

Some ARM systems have a short sched_clock() [ which needs to be fixed
too ], but this exposed a bug in the irq_time code as well, it doesn't
deal with wraps at all.

Fix the irq_time code to deal with u64 wraps by re-writing the code to
only use delta increments, which avoids the whole issue.

Reviewed-by: Venkatesh Pallipadi <venki@google.com>
Reported-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1292242433.6803.199.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2010-12-16 11:17:46 +01:00

..

debug

kdb: fix crash when KDB_BASE_CMD_MAX is exceeded

2010-11-17 13:54:57 -06:00

gcov

llseek: automatically add .llseek fop

2010-10-15 15:53:27 +02:00

irq

genirq: Fix incorrect proc spurious output

2010-12-01 08:44:26 +01:00

power

PM / Hibernate: Fix memory corruption related to swap

2010-12-06 23:52:08 +01:00

time

…

trace

Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-11-27 07:28:17 +09:00

.gitignore

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acct.c

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async.c

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audit_tree.c

in untag_chunk() we need to do alloc_chunk() a bit earlier

2010-10-30 02:18:32 -04:00

audit_watch.c

audit: make functions static

2010-10-30 01:42:19 -04:00

audit.c

audit: Use rcu for task lookup protection

2010-10-30 08:45:42 -04:00

audit.h

audit: make functions static

2010-10-30 01:42:19 -04:00

auditfilter.c

Audit: add support to match lsm labels on user audit messages

2010-10-30 01:41:57 -04:00

auditsc.c

audit mmap

2010-10-30 08:45:43 -04:00

backtracetest.c

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bounds.c

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capability.c

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cgroup_freezer.c

cgroup_freezer: update_freezer_state() does incorrect state transitions

2010-10-27 18:03:08 -07:00

cgroup.c

convert cgroup and cpuset

2010-10-29 04:17:06 -04:00

compat.c

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configs.c

llseek: automatically add .llseek fop

2010-10-15 15:53:27 +02:00

cpu.c

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cpuset.c

convert cgroup and cpuset

2010-10-29 04:17:06 -04:00

cred.c

signals: move cred_guard_mutex from task_struct to signal_struct

2010-10-27 18:03:12 -07:00

delayacct.c

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dma.c

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elfcore.c

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exec_domain.c

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exit.c

do_exit(): make sure that we run with get_fs() == USER_DS

2010-12-02 14:51:16 -08:00

extable.c

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fork.c

Sched: fix skip_clock_update optimization

2010-12-08 20:15:06 +01:00

freezer.c

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futex_compat.c

futex: Address compiler warnings in exit_robust_list

2010-11-10 13:27:50 +01:00

futex.c

futex: Address compiler warnings in exit_robust_list

2010-11-10 13:27:50 +01:00

groups.c

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hrtimer.c

hrtimer: Preserve timer state in remove_hrtimer()

2010-10-14 13:29:59 +02:00

hung_task.c

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hw_breakpoint.c

perf,hw_breakpoint: Initialize hardware api earlier

2010-11-12 14:51:55 +01:00

irq_work.c

irq_work: Drop cmpxchg() result

2010-11-18 13:18:47 +01:00

itimer.c

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jump_label.c

jump label: Make arch_jump_label_text_poke_early() optional

2010-10-29 12:56:13 -04:00

kallsyms.c

Revert "kernel: make /proc/kallsyms mode 400 to reduce ease of attacking"

2010-11-19 11:54:40 -08:00

Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kexec.c

use clear_page()/copy_page() in favor of memset()/memcpy() on whole pages

2010-10-26 16:52:13 -07:00

kfifo.c

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kmod.c

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kprobes.c

jump label: Fix error with preempt disable holding mutex

2010-10-29 12:55:55 -04:00

ksysfs.c

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kthread.c

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latencytop.c

latencytop: fix per task accumulator

2010-11-12 07:55:31 -08:00

lockdep_internals.h

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lockdep_proc.c

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lockdep_states.h

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lockdep.c

lockdep: Check the depth of subclass

2010-10-18 18:44:26 +02:00

Makefile

Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-21 18:52:11 -07:00

module.c

tracing: Fix module use of trace_bprintk()

2010-11-10 22:19:24 -05:00

mutex-debug.c

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mutex-debug.h

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mutex.c

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mutex.h

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notifier.c

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ns_cgroup.c

cgroup: notify ns_cgroup deprecated

2010-10-27 18:03:09 -07:00

nsproxy.c

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padata.c

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panic.c

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params.c

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perf_event.c

perf: Fix the software context switch counter

2010-11-26 15:00:59 +01:00

pid_namespace.c

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pid.c

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pm_qos_params.c

PM / PM QoS: Fix reversed min and max

2010-11-15 22:45:22 +01:00

posix-cpu-timers.c

posix-cpu-timers: Rcu_read_lock/unlock protect find_task_by_vpid call

2010-11-10 13:07:06 +01:00

posix-timers.c

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printk.c

nohz: Fix printk_needs_cpu() return value on offline cpus

2010-11-26 15:03:12 +01:00

profile.c

llseek: automatically add .llseek fop

2010-10-15 15:53:27 +02:00

ptrace.c

signals: move cred_guard_mutex from task_struct to signal_struct

2010-10-27 18:03:12 -07:00

range.c

kernel/range.c: fix clean_sort_range() for the case of full array

2010-11-12 07:55:31 -08:00

rcupdate.c

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rcutiny_plugin.h

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rcutiny.c

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rcutorture.c

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rcutree_plugin.h

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rcutree_trace.c

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rcutree.c

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rcutree.h

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relay.c

Clean up relay_alloc_page_array() slightly by using vzalloc rather than vmalloc and memset

2010-11-05 08:21:34 -07:00

res_counter.c

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resource.c

Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

2010-10-28 11:59:52 -07:00

rtmutex_common.h

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rtmutex-debug.c

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rtmutex-debug.h

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rtmutex-tester.c

rtmutex-tester: make it build without BKL

2010-10-19 11:29:56 +02:00

rtmutex.c

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rtmutex.h

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rwsem.c

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sched_clock.c

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sched_cpupri.c

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sched_cpupri.h

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sched_debug.c

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sched_fair.c

sched: Fix idle balancing

2010-11-18 13:12:33 +01:00

sched_features.h

sched: Remove irq time from available CPU power

2010-10-18 20:52:27 +02:00

sched_idletask.c

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sched_rt.c

sched: Do not account irq time to current task

2010-10-18 20:52:26 +02:00

sched_stats.h

sched_stat: Update sched_info_queue/dequeue() code comments

2010-10-24 13:29:01 +02:00

sched_stoptask.c

sched: Fix cross-sched-class wakeup preemption

2010-11-11 14:37:23 +01:00

sched.c

sched: Fix the irqtime code to deal with u64 wraps

2010-12-16 11:17:46 +01:00

seccomp.c

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semaphore.c

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signal.c

signals: annotate lock context change on ptrace_stop()

2010-10-27 18:03:12 -07:00

smp.c

Typedef SMP call function pointer

2010-10-27 17:28:36 +01:00

softirq.c

Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-10-27 18:48:00 -07:00

spinlock.c

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srcu.c

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stacktrace.c

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stop_machine.c

stop_machine: convert cpu notifier to return encapsulate errno value

2010-10-26 16:52:15 -07:00

sys_ni.c

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sys.c

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sysctl_binary.c

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sysctl_check.c

sysctl: min/max bounds are optional

2010-10-15 14:42:24 -07:00

sysctl.c

kernel/sysctl.c: Fix build failure with !CONFIG_PRINTK

2010-11-16 07:56:09 -08:00

taskstats.c

taskstats: split fill_pid function

2010-10-27 18:03:17 -07:00

test_kprobes.c

kprobes: Fix selftest to clear flags field for reusing probes

2010-10-14 08:55:27 +02:00

time.c

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timeconst.pl

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timer.c

nohz: Fix get_next_timer_interrupt() vs cpu hotplug

2010-12-08 20:15:07 +01:00

tracepoint.c

jump_label: Use more consistent naming

2010-10-18 19:58:56 +02:00

tsacct.c

taskstats: use real microsecond granularity for CPU times

2010-10-27 18:03:17 -07:00

uid16.c

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up.c

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user_namespace.c

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user-return-notifier.c

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user.c

kernel/user.c: add lock release annotation on free_user()

2010-10-26 16:52:15 -07:00

utsname_sysctl.c

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utsname.c

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wait.c

docbook: add more wait/wake/completion to device-drivers docbook

2010-10-26 17:32:41 -07:00

watchdog.c

watchdog: Fix section mismatch and potential undefined behavior.

2010-11-05 17:45:35 -07:00

workqueue_sched.h

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workqueue.c

workqueues: s/ON_STACK/ONSTACK/

2010-10-26 16:52:14 -07:00