KVM: Use slab caches to allocate mmu data structures

Better leak detection, statistics, memory use, speed -- goodness all
around.

Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c
index 0b30631585bd..ab4dbd7fa5f8 100644
--- a/drivers/kvm/kvm_main.c
+++ b/drivers/kvm/kvm_main.c
@@ -3063,6 +3063,10 @@ static __init int kvm_init(void)
         static struct page *bad_page;
         int r;
 
+        r = kvm_mmu_module_init();
+        if (r)
+                goto out4;
+
         r = register_filesystem(&kvm_fs_type);
         if (r)
                 goto out3;
@@ -3091,6 +3095,8 @@ out:
 out2:
         unregister_filesystem(&kvm_fs_type);
 out3:
+        kvm_mmu_module_exit();
+out4:
         return r;
 }
 
@@ -3100,6 +3106,7 @@ static __exit void kvm_exit(void)
         __free_page(pfn_to_page(bad_page_address >> PAGE_SHIFT));
         mntput(kvmfs_mnt);
         unregister_filesystem(&kvm_fs_type);
+        kvm_mmu_module_exit();
 }
 
 module_init(kvm_init)