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Slab allocators: Replace explicit zeroing with __GFP_ZERO

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kmalloc_node() and kmem_cache_alloc_node() were not available in a zeroing
variant in the past.  But with __GFP_ZERO it is possible now to do zeroing
while allocating.

Use __GFP_ZERO to remove the explicit clearing of memory via memset whereever
we can.

Signed-off-by: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2007-07-17 04:03:29 -07:00 • committed by Linus Torvalds
commit 94f6030ca7
12 changed files with 30 additions and 38 deletions
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3
mm/mempool.c
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@ -62,10 +62,9 @@ mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
mempool_free_t *free_fn, void *pool_data, int node_id)
{
mempool_t *pool;
pool = kmalloc_node(sizeof(*pool), GFP_KERNEL, node_id);
pool = kmalloc_node(sizeof(*pool), GFP_KERNEL | __GFP_ZERO, node_id);
if (!pool)
return NULL;
memset(pool, 0, sizeof(*pool));
pool->elements = kmalloc_node(min_nr * sizeof(void *),
GFP_KERNEL, node_id);
if (!pool->elements) {