diff options
author | Jeff Garzik <jgarzik@pobox.com> | 2005-08-24 01:02:04 -0400 |
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committer | Jeff Garzik <jgarzik@pobox.com> | 2005-08-24 01:02:04 -0400 |
commit | b2382b363df828f25e35ed8b70a3da33b29b2a64 (patch) | |
tree | 23aa2e70ba4650390c9281b3696172313bdb0f38 /arch/x86_64/kernel/smpboot.c | |
parent | 1b5cca3a88b7682d538d129c25f0e3092613a243 (diff) | |
parent | 0572e3da3ff5c3744b2f606ecf296d5f89a4bbdf (diff) |
Merge upstream into ieee80211.
Hand-fix merge conflict in drivers/usb/net/zd1201.c.
Diffstat (limited to 'arch/x86_64/kernel/smpboot.c')
-rw-r--r-- | arch/x86_64/kernel/smpboot.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index b15761ff410..fa25e39fe54 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -492,6 +492,14 @@ void __cpuinit start_secondary(void) */ set_cpu_sibling_map(smp_processor_id()); + /* + * Wait for TSC sync to not schedule things before. + * We still process interrupts, which could see an inconsistent + * time in that window unfortunately. + * Do this here because TSC sync has global unprotected state. + */ + tsc_sync_wait(); + /* * We need to hold call_lock, so there is no inconsistency * between the time smp_call_function() determines number of @@ -509,13 +517,6 @@ void __cpuinit start_secondary(void) per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; unlock_ipi_call_lock(); - mb(); - - /* Wait for TSC sync to not schedule things before. - We still process interrupts, which could see an inconsistent - time in that window unfortunately. */ - tsc_sync_wait(); - cpu_idle(); } |