Messages in this thread | | | Date | Tue, 21 Mar 2006 09:13:49 +0200 (EET) | From | Pekka J Enberg <> | Subject | Re: [PATCH] slab: introduce kmem_cache_zalloc allocator |
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On Mon, 20 Mar 2006, Balbir Singh wrote: > When I allocate the structure - I would like to do > > kmem_cache_alloc_set(&resp, GFP_XXXXX, 0xEE) > > The device should ideally fill all fields of resp. Fields that look > 0xEE after receiving the response -- would indicate that they were not > filled by the device. This would be extremely useful in debugging. > With kmem_cache_zalloc() - 0 is usually almost always a valid value. > It is useful in some cases and no so much in other cases. > > I could easily achieve the same thing by doing a > > memset(&resp, 0xEE, size) > > after the kmem_cache_alloc(). But since there is an API to zero out > allocated memory, I thought we could make it more generic and more > useful.
Yeah, but if it's a debugging thing, I don't see much point in adding yet another API call. The main point in introducing kmem_cache_zalloc() is to move existing API into slab proper.
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