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Martin Schwidefsky 92f63cd000 [PATCH] s390: next_timer_interrupt overflow in stop_hz_timer 
The 32 bit unsigned substraction (next - jiffies) in stop_hz_timer can
overflow if jiffies gets advanced between next_timer_interrupt and the read
under the xtime lock.  The cast to a u64 then results in a large value
which causes the cpu to wait too long.  Fix this by casting next and
jiffies independently to u64 before subtracting them.

(Spotted by Zachary Amsden <zach@vmware.com>)

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-21 12:59:21 -07:00
..
alpha [PATCH] Alpha: strncpy() fix 2006-04-25 07:51:06 -07:00
arm [ARM] 3530/1: PXA Mainstone: prevent double enable_irq() in pcmcia 2006-05-17 20:14:29 +01:00
arm26 [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
cris [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
frv [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
h8300 [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
i386 [PATCH] i386 kdump boot cpu physical apicid fix 2006-05-21 12:59:20 -07:00
ia64 [IA64] one-line cleanup on set_irq_affinity_info 2006-05-17 06:20:59 -07:00
m32r [PATCH] m32r: update switch_to macro for tuning 2006-04-19 09:13:51 -07:00
m68k [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
m68knommu [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
mips [PATCH] drop task argument of audit_syscall_{entry,exit} 2006-05-01 06:06:18 -04:00
parisc [PARISC] Add new entries to the syscall table 2006-04-21 22:20:35 +00:00
powerpc [PATCH] Fix pSeries identification in prom_init.c 2006-05-16 21:31:25 +10:00
ppc [PATCH] ppc32/8xx: Fix r3 trashing due to 8MB TLB page instantiation 2006-05-09 16:03:11 +10:00
s390 [PATCH] s390: next_timer_interrupt overflow in stop_hz_timer 2006-05-21 12:59:21 -07:00
sh [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
sh64 [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
sparc [SPARC]: Handle UNWIND_INFO properly. 2006-05-12 12:45:50 -07:00
sparc64 [SPARC]: Handle UNWIND_INFO properly. 2006-05-12 12:45:50 -07:00
um [PATCH] uml: change timer initialization 2006-05-03 20:05:40 -07:00
v850 [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00
x86_64 [PATCH] kprobes: bad manipulation of 2 byte opcode on x86_64 2006-05-21 12:59:21 -07:00
xtensa [PATCH] No arch-specific strpbrk implementations 2006-04-11 06:18:40 -07:00