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From: David Howells <dhowells@redhat.com>
To: Vasily Averin <vvs@sw.ru>
Cc: Neil Brown <neilb@suse.de>, Jan Blunck <jblunck@suse.de>,
	Olaf Hering <olh@suse.de>, Balbir Singh <balbir@in.ibm.com>,
	Kirill Korotaev <dev@openvz.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	devel@openvz.org, Andrew Morton <akpm@osdl.org>
Subject: Re: [Q] missing unused dentry in prune_dcache()?
Date: Fri, 27 Oct 2006 13:11:21 +0100	[thread overview]
Message-ID: <24249.1161951081@redhat.com> (raw)
In-Reply-To: <4541F2A3.8050004@sw.ru>

Vasily Averin <vvs@sw.ru> wrote:

> > Vasily Averin <vvs@sw.ru> wrote:
> >> Therefore I believe that my patch is optimal solution.
> > I'm not sure that prune_dcache() is particularly optimal.
> 
> I means that my patch is optimal for problem in subject.

I didn't say it wasn't.

> I would like to ask you to approve it and we will go to next issue.

I did ack it didn't I?  I must fix my mail client so that it doesn't
automatically remove my email address from the To/Cc fields when I'm replying
to a message:-/

> We have seen that umount (and remount) can work very slowly, it was cycled
> inside shrink_dcache_sb() up to several hours with taken s_umount semaphore.

umount at least should be fixed as that should no longer use
shrink_dcache_sb().

> We are trying to resolve this issue by using per-sb lru list. I'm preparing
> the patch for 2.6.19-rc3 right now and going to send it soon.

That sounds tricky; you have to check all your LRU lists to find the LRU
dentry.

David

  reply	other threads:[~2006-10-27 12:13 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-10-25 12:30 [Q] missing unused dentry in prune_dcache()? Vasily Averin
2006-10-25 13:51 ` David Howells
2006-10-25 13:58   ` Vasily Averin
2006-10-25 14:23     ` David Howells
2006-10-26 11:36       ` Vasily Averin
2006-10-26 13:25         ` David Howells
2006-10-27  8:05           ` Vasily Averin
2006-10-27 10:42             ` David Howells
2006-10-27 11:50               ` Vasily Averin
2006-10-27 12:11                 ` David Howells [this message]
2006-10-27 13:47                   ` Vasily Averin
2006-10-27 14:29                     ` David Howells
2006-10-27 14:39                       ` Kirill Korotaev
2006-10-27 14:05                   ` [PATCH 2.6.19-rc3] VFS: per-sb dentry lru list Vasily Averin
2006-10-27 18:06                     ` Andrew Morton
2006-10-30 14:24                       ` Vasily Averin
2006-10-30 15:08                         ` Eric Dumazet
2006-10-30 15:34                           ` Kirill Korotaev
2006-10-30 16:09                             ` Eric Dumazet
2006-10-30 15:14                       ` Kirill Korotaev
2006-10-30  4:24                     ` David Chinner
2006-10-30  6:28                       ` [Devel] " Kirill Korotaev
2006-10-31  4:38                         ` Neil Brown
2006-10-31 10:40                           ` David Howells
2006-11-01  6:32                             ` Neil Brown
2006-11-01 13:32                               ` Vasily Averin
2006-11-14  5:44                                 ` Neil Brown
2006-11-14  6:12                                   ` Vasily Averin
2006-10-31 13:08                           ` Vasily Averin
2006-11-01 10:55                           ` [Devel] " Kirill Korotaev
2006-11-14  4:51                             ` Neil Brown
2006-11-14  9:29                               ` David Howells
2006-10-27 13:42       ` [PATCH 2.6.19-rc3] VFS: missing unused dentry in prune_dcache() Vasily Averin
2006-10-27 14:24         ` David Howells
2006-10-26 11:49 ` [Q] missing unused dentry in prune_dcache()? Vasily Averin
2006-10-26 12:33   ` David Howells
2006-10-26 13:23   ` David Howells
2006-10-26 13:58     ` Vasily Averin
2006-10-26 14:07       ` David Howells
2006-10-27  6:32     ` Vasily Averin
2006-10-27  6:50       ` Vasily Averin
2006-10-27  9:36         ` David Howells
2006-10-31 13:24 ` [Q] missing ->d_delete() in shrink_dcache_for_umount()? Vasily Averin
2006-10-31 15:06   ` David Howells

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