From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Risto Bell <reb-+wT8y+m8/X5BDgjK7y7TUQ@public.gmane.org>
Cc: NFS list <linux-nfs@vger.kernel.org>
Subject: Re: [PATCH 2/3] NFS: Add NFS_MOUNT_NONEGDE flag to avoid caching negative dentries
Date: Wed, 16 Jan 2008 16:56:14 -0500 [thread overview]
Message-ID: <1200520574.15282.24.camel@heimdal.trondhjem.org> (raw)
In-Reply-To: <478E7345.8080003-+wT8y+m8/X5BDgjK7y7TUQ@public.gmane.org>
On Wed, 2008-01-16 at 13:12 -0800, Risto Bell wrote:
> Already decided not to go the distance, with separate controls of
> time-to-live of positive and negative lookup cache entries (or is it
> not considered good form to overload negttl=0 as means to disable)?
We don't have a time-to-live scheme for dentries. When deciding whether
we need to revalidate the lookup, we check the parent directory mtime,
and see if the directory contents have changed since the last
revalidation.
Trond
next prev parent reply other threads:[~2008-01-16 21:56 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-15 16:27 [PATCH 0/3] Intro: Better handling coarse-grained timestamps Bob Bell
[not found] ` <20080115162658.GA18911-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org>
2008-01-15 16:29 ` [PATCH 1/3] NFS: Check nlinks count Bob Bell
2008-01-15 16:30 ` [PATCH 2/3] NFS: Add NFS_MOUNT_NONEGDE flag to avoid caching negative dentries Bob Bell
[not found] ` <20080115163013.GC18911-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org>
2008-01-15 16:52 ` Trond Myklebust
[not found] ` <1200415972.7702.7.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2008-01-15 17:04 ` Chuck Lever
2008-01-15 17:14 ` Trond Myklebust
2008-01-16 1:22 ` Bob Bell
[not found] ` <20080116012209.GB26010-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org>
2008-01-16 2:42 ` Trond Myklebust
[not found] ` <1200451350.28088.43.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2008-01-16 12:49 ` Steve Dickson
[not found] ` <478DFD5A.1040501-AfCzQyP5zfLQT0dZR+AlfA@public.gmane.org>
2008-01-16 19:43 ` Muntz, Daniel
[not found] ` <01AE8AF878612047A442668306EAEB05018178E7-Ye0EzW0T4yEQ4vjYWPuN5KYtpRd4g51m@public.gmane.org>
2008-01-16 20:43 ` Trond Myklebust
[not found] ` <1200516219.6932.22.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2008-01-16 20:49 ` Chuck Lever
2008-01-16 21:12 ` Risto Bell
[not found] ` <478E7345.8080003-+wT8y+m8/X5BDgjK7y7TUQ@public.gmane.org>
2008-01-16 21:56 ` Trond Myklebust [this message]
[not found] ` <1200520574.15282.24.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2008-01-16 22:09 ` Chuck Lever
2008-01-16 23:21 ` Trond Myklebust
2008-01-18 15:29 ` Bob Bell
[not found] ` <20080118152902.GF7128-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org>
2008-01-18 20:00 ` Muntz, Daniel
[not found] ` <01AE8AF878612047A442668306EAEB0501817BA4-Ye0EzW0T4yEQ4vjYWPuN5KYtpRd4g51m@public.gmane.org>
2008-01-19 1:28 ` Bob Bell
2008-01-18 21:12 ` Chuck Lever
2008-01-18 21:17 ` Trond Myklebust
2008-01-15 16:31 ` [PATCH 3/3] nfs-utils: Add nonegde mount option Bob Bell
[not found] ` <20080115163130.GD18911-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org>
2008-01-15 16:42 ` Chuck Lever
2008-01-16 1:13 ` Bob Bell
[not found] ` <20080116011305.GA26010-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org>
2008-01-16 20:45 ` Chuck Lever
2008-01-16 1:55 ` [PATCH 0/3] Intro: Better handling coarse-grained timestamps Bob Bell
[not found] ` <20080116015526.GC26010-y89O8yXFYpDSsb2jM9SCN5/hYUUxywnI@public.gmane.org>
2008-01-16 2:18 ` Trond Myklebust
[not found] ` <1200449912.28088.22.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2008-01-16 17:16 ` david m. richter
2008-01-16 19:47 ` Trond Myklebust
[not found] ` <1200512872.6932.8.camel-rJ7iovZKK19ZJLDQqaL3InhyD016LWXt@public.gmane.org>
2008-01-16 20:09 ` david m. richter
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