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author | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:33:23 -0500 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:33:23 -0500 |
commit | df43510b18b8439465b4b58556f0495b5f5d771e (patch) | |
tree | ad9c1c45f4c7046b9843b1861c767d0ce8a3a3b8 | |
parent | ade1af77129dea6e335b525ed3be3b846bc1ec13 (diff) |
x86: check_tsc_warp() slowness fix
100 million max # of loops is a bit too much - reduce it to 10 million.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r-- | arch/x86/kernel/tsc_sync.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c index ace340524c01..7110078f242c 100644 --- a/arch/x86/kernel/tsc_sync.c +++ b/arch/x86/kernel/tsc_sync.c | |||
@@ -67,12 +67,12 @@ static __cpuinit void check_tsc_warp(void) | |||
67 | 67 | ||
68 | /* | 68 | /* |
69 | * Be nice every now and then (and also check whether | 69 | * Be nice every now and then (and also check whether |
70 | * measurement is done [we also insert a 100 million | 70 | * measurement is done [we also insert a 10 million |
71 | * loops safety exit, so we dont lock up in case the | 71 | * loops safety exit, so we dont lock up in case the |
72 | * TSC readout is totally broken]): | 72 | * TSC readout is totally broken]): |
73 | */ | 73 | */ |
74 | if (unlikely(!(i & 7))) { | 74 | if (unlikely(!(i & 7))) { |
75 | if (now > end || i > 100000000) | 75 | if (now > end || i > 10000000) |
76 | break; | 76 | break; |
77 | cpu_relax(); | 77 | cpu_relax(); |
78 | touch_nmi_watchdog(); | 78 | touch_nmi_watchdog(); |