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| author | Zachary Amsden <zamsden@redhat.com> | 2010-08-19 22:07:29 -1000 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:51:24 +0200 |
| commit | 347bb4448c2155eb2310923ccaa4be5677649003 (patch) | |
| tree | 93f5592975413c00c6c647001d715324e27cf985 /arch/x86/kernel/pvclock.c | |
| parent | ca84d1a24c376e0841f35db08dab7b829c8c0b1e (diff) | |
| download | linux-347bb4448c2155eb2310923ccaa4be5677649003.tar.gz linux-347bb4448c2155eb2310923ccaa4be5677649003.tar.bz2 linux-347bb4448c2155eb2310923ccaa4be5677649003.zip | |
x86: pvclock: Move scale_delta into common header
The scale_delta function for shift / multiply with 31-bit
precision moves to a common header so it can be used by both
kernel and kvm module.
Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/kernel/pvclock.c')
| -rw-r--r-- | arch/x86/kernel/pvclock.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 239427ca02af..bab3b9e6f66d 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -82,7 +82,8 @@ static inline u64 scale_delta(u64 delta, u32 mul_frac, int shift) static u64 pvclock_get_nsec_offset(struct pvclock_shadow_time *shadow) { u64 delta = native_read_tsc() - shadow->tsc_timestamp; - return scale_delta(delta, shadow->tsc_to_nsec_mul, shadow->tsc_shift); + return pvclock_scale_delta(delta, shadow->tsc_to_nsec_mul, + shadow->tsc_shift); } /* |