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authorJames Morris <jmorris@namei.org>2008-11-13 19:29:12 -0500
committerJames Morris <jmorris@namei.org>2008-11-13 19:29:12 -0500
commit2b828925652340277a889cbc11b2d0637f7cdaf7 (patch)
tree32fcb3d3e466fc419fad2d3717956a5b5ad3d35a /arch/x86/include/asm/tsc.h
parent3a3b7ce9336952ea7b9564d976d068a238976c9d (diff)
parent58e20d8d344b0ee083febb18c2b021d2427e56ca (diff)
Merge branch 'master' into next
Conflicts: security/keys/internal.h security/keys/process_keys.c security/keys/request_key.c Fixed conflicts above by using the non 'tsk' versions. Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'arch/x86/include/asm/tsc.h')
-rw-r--r--arch/x86/include/asm/tsc.h8
1 files changed, 7 insertions, 1 deletions
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)
34 34
35static __always_inline cycles_t vget_cycles(void) 35static __always_inline cycles_t vget_cycles(void)
36{ 36{
37 cycles_t cycles;
38
37 /* 39 /*
38 * We only do VDSOs on TSC capable CPUs, so this shouldnt 40 * We only do VDSOs on TSC capable CPUs, so this shouldnt
39 * access boot_cpu_data (which is not VDSO-safe): 41 * access boot_cpu_data (which is not VDSO-safe):
@@ -42,7 +44,11 @@ static __always_inline cycles_t vget_cycles(void)
42 if (!cpu_has_tsc) 44 if (!cpu_has_tsc)
43 return 0; 45 return 0;
44#endif 46#endif
45 return (cycles_t)__native_read_tsc(); 47 rdtsc_barrier();
48 cycles = (cycles_t)__native_read_tsc();
49 rdtsc_barrier();
50
51 return cycles;
46} 52}
47 53
48extern void tsc_init(void); 54extern void tsc_init(void);