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From: ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman)
To: Andrei Vagin <avagin-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org>
Cc: linux-fsdevel
	<linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	LKML <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Linux Containers
	<containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
	Andrey Vagin <avagin-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>,
	Alexander Viro
	<viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>
Subject: Re: [REVIEW][PATCH] mount: In propagate_umount handle overlapping mount propagation trees
Date: Fri, 21 Oct 2016 14:26:19 -0500	[thread overview]
Message-ID: <87pomtec6c.fsf@xmission.com> (raw)
In-Reply-To: <20161020213052.GA25226-1ViLX0X+lBJGNQ1M2rI3KwRV3xvJKrda@public.gmane.org> (Andrei Vagin's message of "Thu, 20 Oct 2016 14:30:53 -0700")

Andrei Vagin <avagin-5HdwGun5lf+gSpxsJD1C4w@public.gmane.org> writes:
>> Barring some stupid mistake this looks like it fixes both the performance
>> and the correctness issues I was able to spot earlier.  Andrei if you
>> could give this version a look over I would appreciate it.
>
> Eric, could you try out this script:
[snip script]

> It hangs up on my host with this patch.

Ugh.  I am seeing the hang as well digging into it.

Thanks for keeping me honest.

Eric

  parent reply	other threads:[~2016-10-21 19:26 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-10 23:26 [PATCH] [v3] mount: dont execute propagate_umount() many times for same mounts Andrei Vagin
     [not found] ` <1476141965-21429-1-git-send-email-avagin-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>
2016-10-13 17:14   ` Eric W. Biederman
     [not found] ` <877f9c6ui8.fsf@x220.int.ebiederm.org>
     [not found]   ` <877f9c6ui8.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2016-10-13 19:53     ` [RFC][PATCH] mount: In mark_umount_candidates and __propogate_umount visit each mount once Eric W. Biederman
     [not found]   ` <87pon458l1.fsf_-_@x220.int.ebiederm.org>
     [not found]     ` <87pon458l1.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2016-10-13 21:46       ` Andrei Vagin
     [not found]     ` <20161013214650.GB19836@outlook.office365.com>
     [not found]       ` <20161013214650.GB19836-1ViLX0X+lBJGNQ1M2rI3KwRV3xvJKrda@public.gmane.org>
2016-10-14  2:31         ` Andrey Vagin
     [not found]           ` <CANaxB-xPkgdyeg0z6TvExMfyy4uOC+Nu4Q99WpCscNKMWz8VPg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-10-14  2:45             ` Eric W. Biederman
     [not found]               ` <87wphb4pjn.fsf-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2016-10-14 18:29                 ` [RFC][PATCH v2] " Eric W. Biederman
     [not found]                   ` <8737jy3htt.fsf_-_-JOvCrm2gF+uungPnsOpG7nhyD016LWXt@public.gmane.org>
2016-10-18  2:40                     ` Andrei Vagin
     [not found]                       ` <20161018024000.GA4901-1ViLX0X+lBJGNQ1M2rI3KwRV3xvJKrda@public.gmane.org>
2016-10-18  6:49                         ` Eric W. Biederman
     [not found]                           ` <87r37e9mnj.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2016-10-19  3:46                             ` [REVIEW][PATCH] mount: In propagate_umount handle overlapping mount propagation trees Eric W. Biederman
     [not found]                           ` <877f95ngpr.fsf_-_@xmission.com>
     [not found]                             ` <877f95ngpr.fsf_-_-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2016-10-20 21:30                               ` Andrei Vagin
     [not found]                                 ` <20161020213052.GA25226-1ViLX0X+lBJGNQ1M2rI3KwRV3xvJKrda@public.gmane.org>
2016-10-21 19:26                                   ` Eric W. Biederman [this message]
     [not found]                                     ` <87pomtec6c.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2016-10-22 19:42                                       ` [RFC][PATCH v2] " Eric W. Biederman
     [not found]                                         ` <877f90b27o.fsf_-_-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2016-10-25 20:58                                           ` Andrei Vagin
     [not found]                                             ` <20161025205846.GA25080-1ViLX0X+lBJGNQ1M2rI3KwRV3xvJKrda@public.gmane.org>
2016-10-25 21:45                                               ` Eric W. Biederman
     [not found]                                                 ` <87mvhs14s7.fsf-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>
2016-10-25 23:41                                                   ` Andrei Vagin
     [not found]                                                     ` <20161025234125.GA20335-1ViLX0X+lBJGNQ1M2rI3KwRV3xvJKrda@public.gmane.org>
2016-10-26  1:42                                                       ` Eric W. Biederman
2016-11-01  6:14                                                   ` Andrei Vagin

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