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| author | David S. Miller <davem@davemloft.net> | 2008-11-11 15:43:02 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-11-11 15:43:02 -0800 |
| commit | 7e452baf6b96b5aeba097afd91501d33d390cc97 (patch) | |
| tree | 9b0e062d3677d50d731ffd0fba47423bfdee9253 /arch/x86/include/asm/tsc.h | |
| parent | 3ac38c3a2e7dac3f8f35a56eb85c27881a4c3833 (diff) | |
| parent | f21f237cf55494c3a4209de323281a3b0528da10 (diff) | |
| download | olio-linux-3.10-7e452baf6b96b5aeba097afd91501d33d390cc97.tar.xz olio-linux-3.10-7e452baf6b96b5aeba097afd91501d33d390cc97.zip | |
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/asm/tsc.h')
| -rw-r--r-- | arch/x86/include/asm/tsc.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h index 38ae163cc91..9cd83a8e40d 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); |