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From: Al Viro <viro@ZenIV.linux.org.uk>
To: Eric Paris <eparis@redhat.com>
Cc: linux-kernel@vger.kernel.org, malware-list@lists.printk.net,
	akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk,
	arjan@infradead.org, hch@infradead.org, a.p.zijlstra@chello.nl
Subject: Re: [PATCH -v3 8/8] dnotify: reimplement dnotify using fsnotify
Date: Fri, 28 Nov 2008 05:14:43 +0000	[thread overview]
Message-ID: <20081128051443.GH28946@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20081125172133.17115.96807.stgit@paris.rdu.redhat.com>

On Tue, Nov 25, 2008 at 12:21:33PM -0500, Eric Paris wrote:

> +	.mark_clear_inode = clear_mark_dir_notify,

... called under a spinlock

> +static void clear_mark_dir_notify(struct fsnotify_mark_entry *entry, struct inode *inode, unsigned long mask __attribute__ ((unused)), unsigned int flags)
> +{
...
> +	fsnotify_put_group(dnotify_group);

... which grabs a mutex.

Incidentally, why the hell do you bother with refcounting on groups here?
dnotify is not something that's going to be unloaded, for fsck sake...

  reply	other threads:[~2008-11-28  5:14 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-11-25 17:20 [PATCH -v3 0/8] file notification: fsnotify a unified file notification backend Eric Paris
2008-11-25 17:20 ` [PATCH -v3 1/8] filesystem notification: create fs/notify to contain all fs notification Eric Paris
2008-11-28  5:24   ` Al Viro
2008-11-25 17:21 ` [PATCH -v3 2/8] fsnotify: pass a file instead of an inode to open, read, and write Eric Paris
2008-11-25 17:21 ` [PATCH -v3 3/8] fsnotify: sys_execve and sys_uselib do not call into fsnotify Eric Paris
2008-11-28 10:16   ` Christoph Hellwig
2008-11-25 17:21 ` [PATCH -v3 4/8] fsnotify: use the new open-exec hook for inotify and dnotify Eric Paris
2008-11-25 17:21 ` [PATCH -v3 5/8] fsnotify: unified filesystem notification backend Eric Paris
2008-11-27 16:14   ` Peter Zijlstra
2008-11-27 16:17   ` Peter Zijlstra
2008-11-27 16:20   ` Peter Zijlstra
2008-11-28 23:22     ` Eric Paris
2008-11-28 23:39       ` Peter Zijlstra
2008-11-27 16:21   ` Peter Zijlstra
2008-11-28  4:54   ` Al Viro
2008-11-28 23:32     ` Eric Paris
2008-11-25 17:21 ` [PATCH -v3 6/8] fsnotify: add group priorities Eric Paris
2008-11-27 16:25   ` Peter Zijlstra
2008-12-01 15:20     ` Eric Paris
2008-12-01 15:37       ` Peter Zijlstra
2008-11-25 17:21 ` [PATCH -v3 7/8] fsnotify: add in inode fsnotify markings Eric Paris
2008-11-27 16:29   ` Peter Zijlstra
2008-11-28  5:42   ` Al Viro
2008-11-28 23:43     ` Eric Paris
2008-11-25 17:21 ` [PATCH -v3 8/8] dnotify: reimplement dnotify using fsnotify Eric Paris
2008-11-28  5:14   ` Al Viro [this message]
2008-11-28 23:37     ` Eric Paris
2008-11-28  6:25   ` Al Viro
2008-11-28 23:44     ` Eric Paris
2008-11-26  0:14 ` [PATCH -v3 0/8] file notification: fsnotify a unified file notification backend Andrew Morton
2008-11-26  2:00   ` Eric Paris

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