linux-kernel - Re: [PATCH 1/1 linux-next] fanotify: fix a lock in fanotify_should_send

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Date:	Sun, 22 Mar 2015 10:46:34 +0100 (CET)
From:	Fabian Frederick <fabf@...net.be>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Lino Sanfilippo <LinoSanfilippo@....de>
Cc:	Eric Paris <eparis@...hat.com>, linux-kernel@...r.kernel.org,
	David Howells <dhowells@...hat.com>, Jan Kara <jack@...e.cz>
Subject: Re: [PATCH 1/1 linux-next] fanotify: fix a lock in
 fanotify_should_send_event()



> On 21 March 2015 at 02:15 Lino Sanfilippo <LinoSanfilippo@....de> wrote:
>
>
> On 21.03.2015 02:01, Lino Sanfilippo wrote:
>
> >> Should that be (marks_mask & FS_ISDIR & marks_ignored_mask)?
> >>
> >
> > No, the current logic should be correct, since we want events for
> > directories if we have FS_ISDIR set in the marks mask but not in its
> > ignored_mask.
> >
>
> Actually this should be: "... since we ONLY want events for directories
> if we have FS_ISDIR set in the marks mask but not in its ignored_mask".
>
> With Fabians Code we could even get events for dirs although FAN_ONDIR
> has not been set - which is not what we want.
>
Let's hope it only breaks ltp tests and no _real_ userland stuff
(search systems ...)

Regards,
Fabian
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