Re: [PATCH 2/2] fsnotify: turn fsnotify reaper thread into a workqueue job

[Eryu Guan]

On Sun, Feb 14, 2016 at 07:15:23PM -0500, Jeff Layton wrote:
> We don't require a dedicated thread for fsnotify cleanup. Switch it over
> to a workqueue job instead that runs on the system_unbound_wq.
> 
> In the interest of not thrashing the queued job too often when there are
> a lot of marks being removed, we delay the reaper job slightly when
> queueing it, to allow several to gather on the list.
> 
> Cc: Jan Kara <jack@xxxxxxxx>
> Cc: Eric Paris <eparis@xxxxxxxxxxxxxx>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Eryu Guan <guaneryu@xxxxxxxxx>
> Signed-off-by: Jeff Layton <jeff.layton@xxxxxxxxxxxxxxx>

With these two patches applied on top of r.5-rc3, the same test passed
2-hour stress run, also survived stress test that forks 5 processes
running the same test program for 30 minutes.

Thanks for looking into this!

Eryu