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authorSheng Yang <sheng@linux.intel.com>2009-12-18 16:48:45 +0800
committerMarcelo Tosatti <mtosatti@redhat.com>2010-03-01 12:35:40 -0300
commitbe43f83dada2cf0e9e01c9a0ba42977c5bd70f9d (patch)
treef3ec0fac7a26d153d492e8daf57528fc695d4fbc
parent2bf78fa7b9b0d2917fd6587eadb3c0f6bbaf1718 (diff)
x86: Raise vsyscall priority on hotplug notifier chain
KVM need vsyscall_init() to initialize MSR_TSC_AUX before it read the value. Per Avi's suggestion, this patch raised vsyscall priority on hotplug notifier chain, to 30. CC: Ingo Molnar <mingo@elte.hu> CC: linux-kernel@vger.kernel.org Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--arch/x86/kernel/vsyscall_64.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 9055e5872ff0..1c0c6ab9c60f 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -301,7 +301,8 @@ static int __init vsyscall_init(void)
register_sysctl_table(kernel_root_table2);
#endif
on_each_cpu(cpu_vsyscall_init, NULL, 1);
- hotcpu_notifier(cpu_vsyscall_notifier, 0);
+ /* notifier priority > KVM */
+ hotcpu_notifier(cpu_vsyscall_notifier, 30);
return 0;
}