On Mon, 2010-05-17 at 18:42 -0400, Mathieu Desnoyers wrote: > I'll continue to look into this. One of the things I noticed that that we could > possibly use the "steal()" operation to steal the pages back from the page cache > to repopulate the ring buffer rather than continuously allocating new pages. If > steal() fails for some reasons, then we can fall back on page allocation. I'm > not sure it is safe to assume anything about pages being in the page cache > though. Also, suppose it was still in the page-cache and still dirty, a steal() would then punch a hole in the file. > Maybe the safest route is to just allocate new pages for now. Yes, that seems to be the only sane approach. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href