From: "Steven J. Magnani" <steve@digidescorp.com>
To: Jeff Layton <jlayton@redhat.com>
Cc: viro@ZenIV.linux.org.uk, linux-fsdevel@vger.kernel.org,
linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
michael.brantley@deshaw.com, hch@infradead.org,
miklos@szeredi.hu, pstaubach@exagrid.com
Subject: Re: [PATCH v3 00/17] vfs: add the ability to retry on ESTALE to several syscalls
Date: Wed, 11 Jul 2012 13:42:23 -0500 [thread overview]
Message-ID: <1342032143.2190.22.camel@iscandar.digidescorp.com> (raw)
In-Reply-To: <1340996280-27123-1-git-send-email-jlayton@redhat.com>
Jeff -
On Fri, 2012-06-29 at 14:57 -0400, Jeff Layton wrote:
> This patchset is the third version of the patchset to add ESTALE
> handling to several syscalls. The basic idea is to allow the client to
> gracefully retry the lookup and call when a NFS server returns ESTALE.
I exercised this using 3.5-rc5 against a memory-starved server that
exports a FAT-backed filesystem. Where normally I see lots of ESTALE
errors due to inode eviction, with this patchset I see none. And, the
performance is much better than the only other way I know to eliminate
the errors, which is to mount with 'lookupcache=none'.
It's not an exhaustive test by any means, just a data point for you.
Thanks!
Lightly-tested-by: Steve Magnani <steve@digidescorp.com>
------------------------------------------------------------------------
Steven J. Magnani "I claim this network for MARS!
www.digidescorp.com Earthling, return my space modulator!"
#include <standard.disclaimer>
next prev parent reply other threads:[~2012-07-11 18:42 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-29 18:57 [PATCH v3 00/17] vfs: add the ability to retry on ESTALE to several syscalls Jeff Layton
2012-06-29 18:57 ` [PATCH v3 01/17] vfs: add a retry_estale helper function to handle retries on ESTALE Jeff Layton
2012-06-29 18:57 ` [PATCH v3 03/17] vfs: make fstatat retry on ESTALE errors from getattr call Jeff Layton
2012-06-29 18:57 ` [PATCH v3 04/17] vfs: fix readlinkat to retry on ESTALE Jeff Layton
[not found] ` <1340996280-27123-1-git-send-email-jlayton-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2012-06-29 18:57 ` [PATCH v3 02/17] vfs: add a kern_path_at function Jeff Layton
2012-06-29 18:57 ` [PATCH v3 05/17] vfs: remove user_path_at_empty Jeff Layton
2012-06-29 18:57 ` [PATCH v3 13/17] vfs: make do_unlinkat retry on ESTALE errors Jeff Layton
2012-06-29 18:57 ` [PATCH v3 06/17] vfs: turn "empty" arg in getname_flags into a bool Jeff Layton
2012-06-29 18:57 ` [PATCH v3 07/17] vfs: add new "reval" argument to kern_path_create Jeff Layton
2012-06-29 18:57 ` [PATCH v3 08/17] vfs: fix mknodat to retry on ESTALE errors Jeff Layton
2012-06-29 18:57 ` [PATCH v3 09/17] vfs: fix mkdir " Jeff Layton
2012-06-29 18:57 ` [PATCH v3 10/17] vfs: fix symlinkat " Jeff Layton
2012-06-29 18:57 ` [PATCH v3 11/17] vfs: fix linkat " Jeff Layton
2012-06-29 18:57 ` [PATCH v3 12/17] vfs: make rmdir " Jeff Layton
2012-06-29 18:57 ` [PATCH v3 14/17] vfs: fix renameat to " Jeff Layton
2012-06-29 18:57 ` [PATCH v3 15/17] vfs: remove user_path_parent Jeff Layton
2012-06-29 18:57 ` [PATCH v3 16/17] vfs: have do_sys_truncate retry once on an ESTALE error Jeff Layton
2012-06-29 18:58 ` [PATCH v3 17/17] vfs: have faccessat " Jeff Layton
2012-07-11 18:42 ` Steven J. Magnani [this message]
[not found] ` <1342032143.2190.22.camel-GF+V7FdoMD4Ycxa7k1C3m3PVXB/TiYYQ@public.gmane.org>
2012-07-11 19:00 ` [PATCH v3 00/17] vfs: add the ability to retry on ESTALE to several syscalls Jeff Layton
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