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KVM: MMU: fix missing percpu counter destroy 

commit ad05c88266b4cce1c820928ce8a0fb7690912ba1
(KVM: create aggregate kvm_total_used_mmu_pages value)
introduce percpu counter kvm_total_used_mmu_pages but never
destroy it, this may cause oops when rmmod & modprobe.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: Tim Pepper <lnxninja@linux.vnet.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
This commit is contained in:
Wei Yongjun 2010-08-23 16:13:15 +08:00 committed by Avi Kivity
parent 80b63faf02
commit 45bf21a8ce
1 changed files with 4 additions and 1 deletions
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5
arch/x86/kvm/mmu.c
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@ -3185,6 +3185,7 @@ static void mmu_destroy_caches(void)
void kvm_mmu_module_exit(void)
{
mmu_destroy_caches();
percpu_counter_destroy(&kvm_total_used_mmu_pages);
unregister_shrinker(&mmu_shrinker);
}
@ -3207,7 +3208,9 @@ int kvm_mmu_module_init(void)
if (!mmu_page_header_cache)
goto nomem;
percpu_counter_init(&kvm_total_used_mmu_pages, 0);
if (percpu_counter_init(&kvm_total_used_mmu_pages, 0))
goto nomem;
register_shrinker(&mmu_shrinker);
return 0;