Messages in this thread | | | Subject | Re: USB mass storage and ARM cache coherency | From | Benjamin Herrenschmidt <> | Date | Thu, 25 Feb 2010 08:12:34 +1100 |
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On Wed, 2010-02-24 at 08:16 +0100, Oliver Neukum wrote: > I don't know. The issue seems quite complex. It would seem better to > centralize it as far as practical. Do you have a wrapper drivers could > call?
flush_dcache_page() ? :-)
Now, the subsystem might be the one to know whether something is mapped into userspace or not (v4l in our case) in which case a wrapper could be created.
Cheers, Ben.
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