From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH v2] reduce NFS stack usage Date: Thu, 25 Sep 2003 20:07:22 -0400 Sender: linux-kernel-owner@vger.kernel.org Message-ID: <3F73833A.2000909@pobox.com> References: <3F7335B4.1070002@RedHat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Cc: nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org, trond.myklebust@fys.uio.no Return-path: To: Steve Dickson In-Reply-To: <3F7335B4.1070002@RedHat.com> List-ID: Steve Dickson wrote: > Hey Jeff, > > Question: > Why are only nfs_lookup_revalidate() and nfs_readdir() > a problem and not the other 4 ops (like nfs_lookup())? > Is the case only those two showed up in the stack overflow > oops trace? You guessed it... I'm sure other routines are problematic, but those were two that showed up in traces. > Also, not like there much choice in matter, but I wonder what > type of performance hit (if any) there will be by making > these routines call kmalloc()... lookups and readdirs are > pretty popular ops... Sure. I wasn't suggesting by any means my patch is the ultimate solution :) Creating a slab cache would be easy enough... Jeff