[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>

diff --git a/mm/mmap.c b/mm/mmap.c
index 0eb9894db6de6a0fa56caabbd1c002f0cea8e2c3..4f5b5709136abbe6c08b306ac35ac92740cb04d8 100644 (file)
--- 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 6f5aeebd430683b7ecbcd1ca28f6efce2b991740..6a3760e0353ca45d6391ca08cf025731b1b2c72c 100644 (file)
--- 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;