Re: [PATCH 03/15] kmemleak: Add the slab memory allocation/freeinghooks

From: Dave Hansen
Date: Wed Dec 10 2008 - 13:53:22 EST


On Wed, 2008-12-10 at 18:27 +0000, Catalin Marinas wrote:
> @@ -3195,6 +3203,8 @@ static inline void *____cache_alloc(struct
> kmem_cache *cachep, gfp_t flags)
> STATS_INC_ALLOCMISS(cachep);
> objp = cache_alloc_refill(cachep, flags);
> }
> + /* avoid false negatives */
> + memleak_erase(&ac->entry[ac->avail]);
> return objp;
> }

It would be really nice here to say *how* it is avoiding false
negatives. :)

How about:

/* Don't let the pointer from the slab itself count as referencing */

-- Dave

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