[PATCH] af_packet: flush complete kernel cache in packet_sendmsg
Ben Hutchings
bhutchings at solarflare.com
Fri Sep 2 09:46:17 EDT 2011
On Fri, 2011-09-02 at 13:08 +0200, Phil Sutter wrote:
> This flushes the cache before and after accessing the mmapped packet
> buffer. It seems like the call to flush_dcache_page from inside
> __packet_get_status is not enough on Kirkwood (or ARM in general).
> ---
> I know this is far from an optimal solution, but it's in fact the only working
> one I found.
[...]
This is ridiculous. If flush_dcache_page() isn't doing everything it
should, you need to fix that.
Ben.
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
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