Messages in this thread | | | Subject | Re: [RFT][PATCH] generic device DMA implementation | Date | Sat, 28 Dec 2002 12:40:11 -0600 | From | James Bottomley <> |
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manfred@colorfullife.com said: > If multiple kmalloc buffers fit into one cacheline, then it can happen > all the time. But the smallest kmalloc buffer is 64 bytes [assuming > page size > 4096].
Actually, I did forget to mention that on parisc non-coherent, the minimum kmalloc allocation is the cache line width, so that problem cannot occur.
Hmm, perhaps that is an easier (and faster) approach to fixing the problems on non-coherent platforms?
James
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