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mm: remove broken 'kzalloc' mempool

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The kzalloc mempool zeros items when they are initially allocated, but
does not rezero used items that are returned to the pool.  Consequently
mempool_alloc()s may return non-zeroed memory.

Since there are/were only two in-tree users for
mempool_create_kzalloc_pool(), and 'fixing' this in a way that will
re-zero used (but not new) items before first use is non-trivial, just
remove it.

Signed-off-by: Sage Weil <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Sage Weil 2009-09-21 17:02:56 -07:00 • committed by Linus Torvalds
commit bba7881954
2 changed files with 2 additions and 15 deletions
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7
mm/mempool.c
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@ -308,13 +308,6 @@ void *mempool_kmalloc(gfp_t gfp_mask, void *pool_data)
}
EXPORT_SYMBOL(mempool_kmalloc);
void *mempool_kzalloc(gfp_t gfp_mask, void *pool_data)
{
size_t size = (size_t)pool_data;
return kzalloc(size, gfp_mask);
}
EXPORT_SYMBOL(mempool_kzalloc);
void mempool_kfree(void *element, void *pool_data)
{
kfree(element);