Thomas Gleixner 8cab02dc3c x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown ... This basically reverts commit 1a0c009ac (x86: unregister PIT clocksource when PIT is disabled) because the problem which was tried to address with that patch has been solved by commit 3f68535ada (clocksource: sanity check sysfs clocksource changes). The problem addressed by the original patch is that PIT could be selected as clocksource after the system switched the PIT off or set the PIT into one shot mode which would result in complete timekeeping wreckage. Now with the sysfs sanity check in place PIT cannot be selected again when the system is in oneshot mode. The system will not switch to one shot mode as long as PIT is installed because PIT is not suitable for one shot. The shutdown case which happens when the lapic timer is installed is covered by the fact that init_pit_clocksource() is called after the lapic timer take over and then does not install the PIT clocksource at all. We should have done the sanity checks back then, but ... This also solves the locking problem which was reported vs. the clocksource rework. LKML-Reference: <new-submission> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: john stultz <johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>		2009-08-21 21:13:37 +02:00
..
boot	x86: fix usage of bios intcall()	2009-07-04 12:56:32 -07:00
configs	Merge branch 'x86-kbuild-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-10 15:30:41 -07:00
crypto	crypto: aes-ni - Remove CRYPTO_TFM_REQ_MAY_SLEEP from fpu template	2009-06-18 19:44:01 +08:00
ia32
include/asm	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-08-04 15:28:59 -07:00
kernel	x86: Do not unregister PIT clocksource on PIT oneshot setup/shutdown	2009-08-21 21:13:37 +02:00
kvm	KVM: MMU: limit rmap chain length	2009-08-06 12:06:54 +03:00
lguest	lguest: update commentry	2009-07-30 16:03:46 +09:30
lib	x86, msr: execute on the correct CPU subset	2009-08-03 14:48:13 -07:00
math-emu
mm	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-08-04 15:28:59 -07:00
oprofile	x86/oprofile: rename kernel parameter for architectural perfmon to arch_perfmon	2009-07-10 05:22:50 +02:00
pci	x86/pci: insert ioapic resource before assigning unassigned resources	2009-07-10 13:03:14 -07:00
power	x86: Fix resume from suspend when CONFIG_CC_STACKPROTECTOR	2009-07-08 13:20:13 +02:00
vdso	gcov: enable GCOV_PROFILE_ALL for x86_64	2009-06-18 13:03:58 -07:00
video
xen	Merge branch 'x86-xen-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-10 16:16:27 -07:00
Kbuild
Kconfig	perf_counter, x86: Fix/improve apic fallback	2009-08-12 14:12:49 +02:00
Kconfig.cpu	Revert "x86, bts: reenable ptrace branch trace support"	2009-06-11 00:32:00 +02:00
Kconfig.debug	kmemcheck: make kconfig accessible for other architectures	2009-06-15 15:49:17 +02:00
Makefile	kmemcheck: add the kmemcheck core	2009-06-13 15:37:30 +02:00
Makefile_32.cpu