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From: Alexander Nikiforov <a.nikiforov-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
To: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Eric Paris <eparis-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Al Viro <viro-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>,
	Cgroups <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"Kirill A. Shutemov"
	<kirill-oKw7cIdHH8eLwutG50LtGA@public.gmane.org>,
	lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org,
	KAMEZAWA Hiroyuki
	<kamezawa.hiroyu-+CUm20s59erQFUHtdCDX3A@public.gmane.org>,
	Dmitry Solodkiy
	<d.solodkiy-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
	npiggin-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org
Subject: Re: [PATCH -V3 1/1] cgroup: Add inotify event on change tasks file (fork, exit, move pid from file)
Date: Tue, 22 May 2012 09:31:24 +0400	[thread overview]
Message-ID: <4FBB24AC.1010605@samsung.com> (raw)
In-Reply-To: <20120515152844.GE6119-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>

On 05/15/2012 07:28 PM, Tejun Heo wrote:
> Hello,
>
> On Tue, May 15, 2012 at 11:25:17AM -0400, Eric Paris wrote:
>> On Tue, 2012-05-15 at 08:16 -0700, Tejun Heo wrote:
>>> On Mon, May 07, 2012 at 01:38:48PM -0700, Tejun Heo wrote:
>>>> On Fri, May 04, 2012 at 06:43:30PM +0100, Al Viro wrote:
>>>>> 	Consider that preemptively NAKed.  Eric, would you mind explaining
>>>>> WTF would fsnotify *do* with vfsmount(s) here, seeing that they might very
>>>>> well be not mounted in anyone's namespace?  And as for generating an event
>>>>> for each, they might appear and disappear at zero notice.
>>>> Eric, any ideas on how to proceed?
>>> Ping?
>> Oh sorry, if Al's correct, and there is just absolutely no way to come
>> up with any kind of mnt for the path we have no choice.  Do it the way
>> you were.
> The thing is that people have been requesting recursive notification
> for cgroup events (especially cgroup becoming empty).  IIRC, that
> can't be done without path, right?  Why so?  Can we change that?
>
> Thanks.
>
PIng...

-- 
Best regards,
      Alex Nikiforov,
      Mobile SW, Advanced Software Group,
      Moscow R&D center, Samsung Electronics

  parent reply	other threads:[~2012-05-22  5:31 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-04-26  6:02 [RFD/RFC v2] event about group change Alexander Nikiforov
     [not found] ` <4F98E4E5.6020602-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-04-26  6:04   ` Alexander Nikiforov
     [not found]     ` <4F98E57E.1040201-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-04-26  6:09       ` Alexander Nikiforov
2012-04-27 22:34       ` Tejun Heo
     [not found]         ` <20120427223455.GU26595-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-04-28  5:40           ` Alexander Nikiforov
     [not found]             ` <4F9B82E1.3070602-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-04-28 21:41               ` Tejun Heo
     [not found]                 ` <20120428214131.GB4586-9pTldWuhBndy/B6EtB590w@public.gmane.org>
2012-05-03  9:17                   ` Alexander Nikiforov
2012-05-03  9:21                   ` [PATCH -V3 1/1] cgroup: Add inotify event on change tasks file (fork, exit, move pid from file) Alexander Nikiforov
     [not found]                     ` <4FA24E07.1010206-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-05-03 15:50                       ` Tejun Heo
     [not found]                         ` <20120503155012.GB5528-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-05-04 12:55                           ` Alexander Nikiforov
     [not found]                             ` <4FA3D1D0.8000403-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-05-04 16:54                               ` Tejun Heo
     [not found]                                 ` <20120504165433.GC24639-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-05-05  3:50                                   ` Alexander Nikiforov
2012-05-05  5:50                                   ` [PATCH V5] event about group change Alex Nikiforov
     [not found]                                     ` <1336197047-22145-1-git-send-email-a.nikiforov-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-05-05  5:50                                       ` [PATCH V5] Currently, user can get inotify FS_MODIFY event only if "tasks" file changed from the user space side (for example echo $$ > /patch/to/cgroup/tasks), but if another process forked user don't get FS_MODIFY event. This patch add this feature. With this user can get FS_MODIFY on do_fork()/do_exit()/move PID from one group to another Alex Nikiforov
2012-05-05  5:58                                   ` [PATCH -V3 1/1] cgroup: Add inotify event on change tasks file (fork, exit, move pid from file) Alexander Nikiforov
2012-05-03 20:05                       ` Eric Paris
2012-05-04  5:24                         ` Alexander Nikiforov
     [not found]                           ` <4FA36818.9010409-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2012-05-04 17:04                             ` Tejun Heo
     [not found]                               ` <20120504170412.GD24639-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-05-04 17:43                                 ` Al Viro
     [not found]                                   ` <20120504174330.GS6871-3bDd1+5oDREiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
2012-05-07 20:38                                     ` Tejun Heo
     [not found]                                       ` <20120507203848.GL19417-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-05-15 15:16                                         ` Tejun Heo
     [not found]                                           ` <20120515151637.GD6119-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-05-15 15:25                                             ` Eric Paris
2012-05-15 15:28                                               ` Tejun Heo
     [not found]                                                 ` <20120515152844.GE6119-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2012-05-22  5:31                                                   ` Alexander Nikiforov [this message]
2012-04-28  5:15   ` [RFD/RFC v2] event about group change Alexander Nikiforov

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