Re: [PATCH 1/9] task_struct: add PF_NONOTIFY for fanotify to use

From: Eric Paris
Date: Fri Aug 28 2009 - 18:39:47 EST

On Sat, 2009-08-29 at 02:36 +0400, Evgeniy Polyakov wrote:
> Hi.
> On Fri, Aug 28, 2009 at 02:55:42PM -0400, Eric Paris (eparis@xxxxxxxxxx) wrote:
> > Since fanotify opens file descriptors inside the kernel for it's listeners
> > it needs a way to make sure that 2 fanotify listeners, both which listen to
> > open events do not continuously see each others open events (and get into a
> > livelock reporting on each other's activity). This fix is to create a new
> > tast_struct flags called PF_NONOTIFY. If this flag is set in a task no
> > fanotify events will be generated for that task. fanotify will set the
> > flag before and open call and will clear it immediately after.
> Is there a way to get old-school notifications with the object
> information instead of opened file desriptor, which may suffer rlimit
> problems and scalability issues with too many opened/closed descriptors?

Use inotify.


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