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 <[email protected]> --- arch/x86/kvm/mmu.c | 5 ++++- 1 files changed, 4 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index f52a965..ef485db 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3190,6 +3190,7 @@ 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); } @@ -3212,7 +3213,9 @@ 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; -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
