Paolo Bonzini 73459e2a1a x86: pvclock: Really remove the sched notifier for cross-cpu migrations ... This reverts commits 0a4e6be9ca and 80f7fdb1c7. The task migration notifier was originally introduced in order to support the pvclock vsyscall with non-synchronized TSC, but KVM only supports it with synchronized TSC. Hence, on KVM the race condition is only needed due to a bad implementation on the host side, and even then it's so rare that it's mostly theoretical. As far as KVM is concerned it's possible to fix the host, avoiding the additional complexity in the vDSO and the (re)introduction of the task migration notifier. Xen, on the other hand, hasn't yet implemented vsyscall support at all, so we do not care about its plans for non-synchronized TSC. Reported-by: Peter Zijlstra <peterz@infradead.org> Suggested-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>		2015-04-27 15:49:30 +02:00
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asm	x86: pvclock: Really remove the sched notifier for cross-cpu migrations	2015-04-27 15:49:30 +02:00
uapi/asm	Char/Misc driver patches for 4.1-rc1	2015-04-21 09:42:58 -07:00