hrtimer: prevent migration of per CPU hrtimers

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Impact: per CPU hrtimers can be migrated from a dead CPU

The hrtimer code has no knowledge about per CPU timers, but we need to
prevent the migration of such timers and warn when such a timer is
active at migration time.

Explicitely mark the timers as per CPU and use a more understandable
mode descriptor for the interrupts safe unlocked callback mode, which
is used by hrtimer_sleeper and the scheduler code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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This commit is contained in:

Thomas Gleixner 2008-09-29 15:47:42 +02:00

parent b00c1a99e7

commit ccc7dadf73

5 changed files with 40 additions and 19 deletions

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include/linux/hrtimer.h

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