Andrew Morton 35d5d08a08 x86: disable preemption in delay_tsc() ...

Marin Mitov points out that delay_tsc() can misbehave if it is preempted and
rescheduled on a different CPU which has a skewed TSC.  Fix it by disabling
preemption.

(I assume that the worst-case behaviour here is a stall of 2^32 cycles)

Cc: Andi Kleen <ak@suse.de>
Cc: Marin Mitov <mitov@issp.bas.bg>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2007-11-14 18:45:44 -08:00

..

alpha

alpha: sg_virt() fallout

2007-10-23 12:31:05 +02:00

arm

Merge branch 'release' of git://lm-sensors.org/kernel/mhoffman/hwmon-2.6

2007-11-13 09:09:36 -08:00

avr32

[AVR32] ARRAY_SIZE() cleanup

2007-10-23 11:20:26 +02:00

blackfin

Blackfin arch: reclaim a few bytes from the end of our init section

2007-10-30 12:00:02 +08:00

cris

cris gpio: undo locks before returning

2007-11-14 18:45:42 -08:00

frv

FRV: Remove the section annotation on free_initmem()

2007-11-09 15:02:25 -08:00

h8300

Kbuild/doc: fix links to Documentation files

2007-10-30 14:26:30 -07:00

ia64

Add IORESOUCE_BUSY flag for System RAM

2007-11-14 18:45:39 -08:00

m32r

spelling fixes: arch/m32r/

2007-10-20 01:14:39 +02:00

m68k

m68k: sg fallout

2007-10-24 08:55:40 +02:00

m68knommu

m68knommu: mark mem init functions as __init

2007-10-23 20:45:44 -07:00

mips

mips: undo locking on error path returns

2007-11-14 18:45:42 -08:00

parisc

parisc: fix sg_page() fallout

2007-10-23 09:49:31 +02:00

powerpc

[POWERPC] Silence an annoying boot message

2007-11-13 16:23:47 +11:00

ppc

[POWERPC] Avoid unpaired stwcx. on some processors

2007-11-13 16:22:43 +11:00

s390

sched: restore deterministic CPU accounting on powerpc

2007-11-09 22:39:38 +01:00

sh

Merge branch 'page_colouring_despair'

2007-11-08 17:01:42 +09:00

sh64

sh64: Kill off duplicate includes.

2007-11-05 12:18:17 +09:00

sparc

[SPARC]: Remove duplicate includes.

2007-11-06 21:23:11 -08:00

sparc64

[SPARC]: Remove duplicate includes.

2007-11-06 21:23:11 -08:00

um

uml: fix build for !CONFIG_PRINTK

2007-11-14 18:45:43 -08:00

v850

spelling fixes: arch/v850/

2007-10-20 01:24:05 +02:00

x86

x86: disable preemption in delay_tsc()

2007-11-14 18:45:44 -08:00

xtensa

Kbuild/doc: fix links to Documentation files

2007-10-30 14:26:30 -07:00