From mboxrd@z Thu Jan 1 00:00:00 1970 From: Evgeniy Polyakov Subject: Re: [take3 2/4] kevent: AIO, aio_sendfile() implementation. Date: Thu, 3 Aug 2006 21:13:40 +0400 Message-ID: <20060803171340.GA10698@2ka.mipt.ru> References: <11545983603452@2ka.mipt.ru> <44D22CA4.5090405@us.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Cc: lkml , David Miller , Ulrich Drepper , netdev , Zach Brown Return-path: Received: from relay.2ka.mipt.ru ([194.85.82.65]:57801 "EHLO 2ka.mipt.ru") by vger.kernel.org with ESMTP id S932583AbWHCROn (ORCPT ); Thu, 3 Aug 2006 13:14:43 -0400 To: Badari Pulavarty Content-Disposition: inline In-Reply-To: <44D22CA4.5090405@us.ibm.com> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Thu, Aug 03, 2006 at 10:04:36AM -0700, Badari Pulavarty (pbadari@us.ibm.com) wrote: > Evgeniy Polyakov wrote: > >AIO, aio_sendfile() implementation. > > > >This patch includes asynchronous propagation of file's data into VFS > >cache and aio_sendfile() implementation. > >Network aio_sendfile() works lazily - it asynchronously populates pages > >into the VFS cache (which can be used for various tricks with adaptive > >readahead) and then uses usual ->sendfile() callback. > > > >... > >--- /dev/null > >+++ b/kernel/kevent/kevent_aio.c > >@@ -0,0 +1,584 @@ > >+/* > >+ * kevent_aio.c > >+ * > > > Since this is *almost* same as mpage.c code, wondering if its possible > to make common > generic/helper routines in mpage.c and use it here ? Yes, as I mentioned in mail to Christoph, I did it just to separate kevent as much as possible (so I introduced ->get_block() based approach). It can be safely moved into mpage code and used from more clear callback like ->readpage(). Since this AIO code was decided to be postponed for a while, I'm not updating it (just make sure that it compiles with new changes), since overall design of AIO changes (if any) is not 100% completed. > Thanks, > Badari -- Evgeniy Polyakov