Messages in this thread | | | Date | Fri, 30 Jul 1999 23:14:24 +0100 | From | Steve Dodd <> | Subject | Re: Kernel hacking ? - Can this be done? |
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On Fri, Jul 30, 1999 at 10:40:46PM +0200, Arjan van de Ven wrote:
> > Does that mean you're doing a kernel space -> kernel space copy? > Yes.
> > Couldn't you just nick the data straight from the page cache?
> That is possible too, in fact, I am adding this to kHTTPd right now. For > non-performance critical tasks, this is WAY to much pain though, since this > will only work for most filesystems (the f_ops->read works for ALL sane > filesystems), and proper locking isn't easy either.
If instead of the current f_ops->read, filesystems exported a function which could take something similar to a read_actor_t, you could use that. I think. I need to think about this a bit more..
-- "Apathy is not the problem, it's the solution"
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