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KVM: x86: Convert tsc_write_lock to raw_spinlock

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Code under this lock requires non-preemptibility. Ensure this also over
-rt by converting it to raw spinlock.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Jan Kiszka
2011-02-04 10:49:11 +01:00
committed by Marcelo Tosatti
parent 7049467b53
commit 038f8c110e
2 changed files with 4 additions and 4 deletions
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arch/x86/include/asm/kvm_host.h
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@@ -448,7 +448,7 @@ struct kvm_arch {
unsigned long irq_sources_bitmap;
s64 kvmclock_offset;
spinlock_t tsc_write_lock;
raw_spinlock_t tsc_write_lock;
u64 last_tsc_nsec;
u64 last_tsc_offset;
u64 last_tsc_write;