[PATCH] mm: use kmem_cache_zalloc

Convert mm/ to use the new kmem_cache_zalloc allocator.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 3 insertions, 6 deletions

diff --git a/mm/mmap.c b/mm/mmap.c
index 0eb9894db6de..4f5b5709136a 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1040,12 +1040,11 @@ munmap_back:
          * specific mapper. the address has already been validated, but
          * not unmapped, but the maps are removed from the list.
          */
-        vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (!vma) {
                 error = -ENOMEM;
                 goto unacct_error;
         }
-        memset(vma, 0, sizeof(*vma));
 
         vma->vm_mm = mm;
         vma->vm_start = addr;
@@ -1896,12 +1895,11 @@ unsigned long do_brk(unsigned long addr, unsigned long len)
         /*
          * create a vma struct for an anonymous mapping
          */
-        vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
+        vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
         if (!vma) {
                 vm_unacct_memory(len >> PAGE_SHIFT);
                 return -ENOMEM;
         }
-        memset(vma, 0, sizeof(*vma));
 
         vma->vm_mm = mm;
         vma->vm_start = addr;
diff --git a/mm/slab.c b/mm/slab.c
index 6f5aeebd4306..6a3760e0353c 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1990,10 +1990,9 @@ kmem_cache_create (const char *name, size_t size, size_t align,
         align = ralign;
 
         /* Get cache's description obj. */
-        cachep = kmem_cache_alloc(&cache_cache, SLAB_KERNEL);
+        cachep = kmem_cache_zalloc(&cache_cache, SLAB_KERNEL);
         if (!cachep)
                 goto oops;
-        memset(cachep, 0, sizeof(struct kmem_cache));
 
 #if DEBUG
         cachep->obj_size = size;