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authorDavid S. Miller <davem@davemloft.net>2008-11-11 15:43:02 -0800
committerDavid S. Miller <davem@davemloft.net>2008-11-11 15:43:02 -0800
commit7e452baf6b96b5aeba097afd91501d33d390cc97 (patch)
tree9b0e062d3677d50d731ffd0fba47423bfdee9253 /arch/x86/include
parent3ac38c3a2e7dac3f8f35a56eb85c27881a4c3833 (diff)
parentf21f237cf55494c3a4209de323281a3b0528da10 (diff)
downloadlinux-7e452baf6b96b5aeba097afd91501d33d390cc97.tar.gz
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/message/fusion/mptlan.c drivers/net/sfc/ethtool.c net/mac80211/debugfs_sta.c
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/msr.h2
-rw-r--r--arch/x86/include/asm/tsc.h8
2 files changed, 7 insertions, 3 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 46be2fa7ac26..c2a812ebde89 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -108,9 +108,7 @@ static __always_inline unsigned long long __native_read_tsc(void)
{
DECLARE_ARGS(val, low, high);
- rdtsc_barrier();
asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
- rdtsc_barrier();
return EAX_EDX_VAL(val, low, high);
}
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index 38ae163cc91b..9cd83a8e40d5 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -34,6 +34,8 @@ static inline cycles_t get_cycles(void)
static __always_inline cycles_t vget_cycles(void)
{
+ cycles_t cycles;
+
/*
* We only do VDSOs on TSC capable CPUs, so this shouldnt
* access boot_cpu_data (which is not VDSO-safe):
@@ -42,7 +44,11 @@ static __always_inline cycles_t vget_cycles(void)
if (!cpu_has_tsc)
return 0;
#endif
- return (cycles_t)__native_read_tsc();
+ rdtsc_barrier();
+ cycles = (cycles_t)__native_read_tsc();
+ rdtsc_barrier();
+
+ return cycles;
}
extern void tsc_init(void);