Messages in this thread | | | From | "David S. Miller" <> | Date | Wed, 11 Jul 2001 16:07:01 -0700 (PDT) |
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Jes Sorensen writes: > The overhead is going be negligeble, the overhead of highmem itself is > much worse.
Once Jens's block layer stuff goes in, a lot of that overhead simply disappears since the page cache need not bounce buffers. The networking can already technically cope with this too.
> Not to mention that today some dma_addr_t's might not be > packed properly in data structure hence they ending up taking 8 bytes > anyway.
Not on x86 which is the current main benefactor of highmem.
Later, David S. Miller davem@redhat.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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