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SubjectRe: Async user space notification from kernel?
On Thu, Aug 26, 1999 at 12:54:35PM -0400, Jeff Garzik wrote:
> Erik Andersen wrote:
> > Select(2) on /proc is indeed disappointing -- it does nothing
> > useful.
> I still wonder if this is because 'read' is the only proc operation that
> is filled in... All of the net routines share
> 'proc_net_inode_operations'.
> Jeff

Ok, I follow you now -- select(2) depends on certain fs file
operations that no /proc entries currently provide. By adjusting the
file_operations, and providing some needed magic, I could indeed use
select on a /proc entry to get async event notification to user space.
That would be a very elegant solution.

Any hints as to what file_ops are needed to support select?
Clearly read and write are not sufficient. flush? poll?


Erik B. Andersen Web:
--This message was written using 73% post-consumer electrons--

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