> > Unfortunately, the version of the patch that I sent out isn't going to > > help your problem. It needs to yield at the top of the loop, but vp isn't > > necessarily valid after the wakeup from the msleep. That's a problem that > > I'm having trouble figuring out a solution to - the solutions that come > > to mind will all significantly increase the overhead of the loop. > > I apologize for not reading the code as I am swamped, but a technique > that Matt Dillon used for bufs might work here. > > Can you use a placeholder vnode as a place to restart the scan? > you might have to mark it special so that other threads/things > (getnewvnode()?) don't molest it, but it can provide for a convenient > restart point.
That was one of the solutions that I considered and rejected since it would significantly increase the overhead of the loop. The solution provided by Kostik Belousov that uses uio_yield looks like a find solution. I intend to try it out on some servers RSN. -DG David G. Lawrence President Download Technologies, Inc. - http://www.downloadtech.com - (866) 399 8500 The FreeBSD Project - http://www.freebsd.org Pave the road of life with opportunities. _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
