Oleg Nesterov f53ae1dc34 [PATCH] arm_timer: remove a racy and obsolete PF_EXITING check ...

arm_timer() checks PF_EXITING to prevent BUG_ON(->exit_state)
in run_posix_cpu_timers().

However, for some reason it does so only for CPUCLOCK_PERTHREAD
case (which is imho wrong).

Also, this check is not reliable, PF_EXITING could be set on
another cpu without any locks/barriers just after the check,
so it can't prevent from attaching the timer to the exiting
task.

The previous patch makes this check unneeded.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2006-06-17 10:52:13 -07:00

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irq

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power

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.gitignore

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acct.c

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audit.c

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audit.h

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auditfilter.c

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auditsc.c

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capability.c

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compat.c

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configs.c

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cpu.c

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cpuset.c

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dma.c

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exec_domain.c

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exit.c

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extable.c

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fork.c

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futex_compat.c

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futex.c

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hrtimer.c

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intermodule.c

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itimer.c

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kallsyms.c

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Kconfig.hz

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Kconfig.preempt

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kexec.c

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kfifo.c

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kmod.c

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kprobes.c

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ksysfs.c

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kthread.c

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Makefile

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module.c

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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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panic.c

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params.c

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pid.c

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posix-cpu-timers.c

[PATCH] arm_timer: remove a racy and obsolete PF_EXITING check

2006-06-17 10:52:13 -07:00

posix-timers.c

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printk.c

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profile.c

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ptrace.c

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rcupdate.c

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rcutorture.c

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relay.c

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resource.c

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sched.c

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seccomp.c

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signal.c

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softirq.c

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softlockup.c

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spinlock.c

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stop_machine.c

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sys_ni.c

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sys.c

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sysctl.c

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time.c

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timer.c

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uid16.c

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user.c

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wait.c

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workqueue.c

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