Thomas Gleixner
eaad084bb0
NOHZ: prevent multiplication overflow - stop timer for huge timeouts ...
get_next_timer_interrupt() returns a delta of (LONG_MAX > 1) in case
there is no timer pending. On 64 bit machines this results in a
multiplication overflow in tick_nohz_stop_sched_tick().
Reported by: Dave Miller <davem@davemloft.net>
Make the return value a constant and limit the return value to a 32 bit
value.
When the max timeout value is returned, we can safely stop the tick
timer device. The max jiffies delta results in a 12 days timeout for
HZ=1000.
In the long term the get_next_timer_interrupt() code needs to be
reworked to return ktime instead of jiffies, but we have to wait until
the last users of the original NO_IDLE_HZ code are converted.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-29 18:11:10 -07:00
acpi: fix potential call to a freed memory section.
2007-05-17 05:23:04 -07:00
alpha: fix hard_smp_processor_id compile error
2007-05-15 08:54:00 -07:00
Merge master.kernel.org:/home/rmk/linux-2.6-arm
2007-05-21 10:00:22 -07:00
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
[AVR32] Implement platform hooks for atmel_lcdfb driver
2007-05-15 14:13:27 +02:00
Blackfin arch: Change NO_ACCESS_CHECK to ACCESS_CHECK
2007-05-21 09:50:23 -07:00
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
Don't call a warnign a bug. It's a warning.
2007-05-24 10:13:43 -07:00
h8300 atomic.h update
2007-05-15 08:54:00 -07:00
i386: fix early usage of atomic_add_return and local_add_return on real i386
2007-05-23 20:14:15 -07:00
[IA64] Cleanup acpi header to reuse the generic _PDC defines
2007-05-24 10:15:06 -07:00
m32r: __xchg() should be always_inline
2007-05-15 18:56:37 -07:00
m68k: implement __clear_user()
2007-05-15 08:54:00 -07:00
Detach sched.h from mm.h
2007-05-21 09:18:19 -07:00
Detach sched.h from mm.h
2007-05-21 09:18:19 -07:00
Detach sched.h from mm.h
2007-05-21 09:18:19 -07:00
Merge branch 'linux-2.6'
2007-05-10 21:08:37 +10:00
[S390] Wire up signald, timerfd and eventfd syscalls.
2007-05-21 11:25:28 +02:00
sh: Fix dreamcast build for IRQ changes.
2007-05-21 15:10:04 +09:00
sh64: generic quicklist support.
2007-05-14 09:55:35 +09:00
[SPARC]: Emulate cmpxchg like parisc
2007-05-29 02:51:13 -07:00
[SPARC64]: Fill holes in hypervisor APIs and fix KTSB registry.
2007-05-29 02:52:15 -07:00
uml: iRQ stacks
2007-05-11 08:29:34 -07:00
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
Detach sched.h from mm.h
2007-05-21 09:18:19 -07:00
Consolidate asm/poll.h
2007-05-11 08:29:34 -07:00
NOHZ: prevent multiplication overflow - stop timer for huge timeouts
2007-05-29 18:11:10 -07:00
[XFRM]: Allow packet drops during larval state resolution.
2007-05-24 18:17:54 -07:00
Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband
2007-05-21 16:19:32 -07:00
[ALSA] version 1.0.14rc4
2007-05-16 11:45:47 +02:00
atmel_lcdfb: AT91/AT32 LCD Controller framebuffer driver
2007-05-11 08:29:37 -07:00
eaad084bb0