mm, vma: use percpu sheaves for vm_area_struct cache

Create the vm_area_struct cache with percpu sheaves of size 32 to
improve its performance.

Reviewed-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>

diff --git a/mm/vma_init.c b/mm/vma_init.c
index 8e53c7943561e7324e7992946b4065dec1149b82..52c6b55fac4519e0da39ca75ad018e14449d1d95 100644 (file)
--- a/mm/vma_init.c
+++ b/mm/vma_init.c
@@ -16,6 +16,7 @@ void __init vma_state_init(void)
        struct kmem_cache_args args = {
                .use_freeptr_offset = true,
                .freeptr_offset = offsetof(struct vm_area_struct, vm_freeptr),
+               .sheaf_capacity = 32,
        };
 
        vm_area_cachep = kmem_cache_create("vm_area_struct",