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0696b711e4
linux/arch/ia64
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Lin Ming 0696b711e4 timekeeping: Fix clock_gettime vsyscall time warp 
Since commit 0a544198 "timekeeping: Move NTP adjusted clock multiplier
to struct timekeeper" the clock multiplier of vsyscall is updated with
the unmodified clock multiplier of the clock source and not with the
NTP adjusted multiplier of the timekeeper.

This causes user space observerable time warps:
new CLOCK-warp maximum: 120 nsecs,  00000025c337c537 -> 00000025c337c4bf

Add a new argument "mult" to update_vsyscall() and hand in the
timekeeping internal NTP adjusted multiplier.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Cc: "Zhang Yanmin" <yanmin_zhang@linux.intel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Tony Luck <tony.luck@intel.com>
LKML-Reference: <1258436990.17765.83.camel@minggr.sh.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-11-17 11:52:34 +01:00
..
configs
dig
hp Merge branch 'acpica' into release 2009-09-19 01:45:22 -04:00
ia32 const: mark struct vm_struct_operations 2009-09-27 11:39:25 -07:00
include/asm Revert "[IA64] fix percpu warnings" 2009-11-02 09:23:08 -08:00
kernel timekeeping: Fix clock_gettime vsyscall time warp 2009-11-17 11:52:34 +01:00
kvm KVM: Reduce runnability interface with arch support code 2009-09-10 08:33:13 +03:00
lib [IA64] fix csum_ipv6_magic() 2009-09-02 09:14:48 -07:00
mm [IA64] Re-implement spinaphores using ticket lock concepts 2009-10-09 10:52:39 -07:00
oprofile [IA64] implement ticket locks for Itanium 2009-09-25 08:42:16 -07:00
pci [IA64] Require SAL 3.2 in order to do extended config space ops 2009-10-13 10:44:42 -07:00
scripts
sn [IA64] use printk_once() unaligned.c/io_common.c 2009-10-13 12:48:25 -07:00
uv
xen rcu: Simplify rcu_pending()/rcu_check_callbacks() API 2009-08-23 10:32:39 +02:00
install.sh kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
Kconfig [IA64] implement ticket locks for Itanium 2009-09-25 08:42:16 -07:00
Kconfig.debug
Makefile arch/ia64/Makefile: Remove -mtune=merced in IA64 kernel build 2009-08-11 14:52:11 -07:00
module.lds