From: Balbir Singh <balbir@in.ibm.com>
To: Jan Blunck <jblunck@suse.de>
Cc: akpm@osdl.org, viro@zeniv.linux.org.uk, olh@suse.de,
neilb@suse.de, dev@openvz.org, bsingharora@gmail.com,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Fix shrink_dcache_parent() against shrink_dcache_memory() race (updated patch)
Date: Thu, 9 Mar 2006 17:06:34 +0530 [thread overview]
Message-ID: <20060309113634.GA8944@in.ibm.com> (raw)
In-Reply-To: <20060309110025.GE4243@hasse.suse.de>
<snip>
> No. Think about a dentry which parent isn't unhashed. This parent will end up
> on the lru-list after the wait_on_prunes(). Therefore we have to do the
> select_parent()/prune_dcache() again to get rid of all dentries.
>
Just checked, yes prune_one_dentry() needs to be called once the parent
gets on to the LRU list, so we must call prune_dcache() again.
In -mm, the generic_shutdown_super() calls shrink_dcache_sb() which takes care
of looping till the lru-list is empty.
Your fix is correct, but the looping is probably not be required for -mm.
Regards,
Balbir
<snip>
next prev parent reply other threads:[~2006-03-09 11:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-08 14:51 [PATCH] Fix shrink_dcache_parent() against shrink_dcache_memory() race (updated patch) Jan Blunck
2006-03-09 6:33 ` Balbir Singh
2006-03-09 11:00 ` Jan Blunck
2006-03-09 11:21 ` Andrew Morton
2006-03-09 11:58 ` Jan Blunck
2006-03-09 12:53 ` Kirill Korotaev
2006-03-09 14:08 ` Jan Blunck
2006-03-09 14:36 ` Kirill Korotaev
2006-03-09 11:36 ` Balbir Singh [this message]
2006-03-09 14:42 ` Kirill Korotaev
2006-03-09 16:09 ` Jan Blunck
2006-03-09 16:18 ` Kirill Korotaev
2006-03-09 16:39 ` Jan Blunck
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