Re: [PATCH] deadlock with suspend and quotas -- Fedora Linux Users


Re: [PATCH] deadlock with suspend and quotas
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Subject: Re: [PATCH] deadlock with suspend and quotas
From: Alasdair G Kergon <agk@xxxxxxxxxx>
Date: Tue, 29 Nov 2011 13:18:11 +0000
Cc: esandeen@xxxxxxxxxx, Surbhi Palande <csurbhi@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, Mikulas Patocka <mpatocka@xxxxxxxxxx>, linux-fsdevel@xxxxxxxxxxxxxxx, Christopher Chaltain <christopher.chaltain@xxxxxxxxxxxxx>, Valerie Aurora <val@xxxxxxxxxxxxxxxxx>
In-reply-to: <20111129130913.GE5635@quack.suse.cz>
Mail-followup-to: Jan Kara <jack@xxxxxxx>, Mikulas Patocka <mpatocka@xxxxxxxxxx>, esandeen@xxxxxxxxxx, Surbhi Palande <csurbhi@xxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, dm-devel@xxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, Christopher Chaltain <christopher.chaltain@xxxxxxxxxxxxx>, Valerie Aurora <val@xxxxxxxxxxxxxxxxx>
Organization: Red Hat UK Ltd. Registered in England and Wales, number 03798903. Registered Office: 64 Baker Street, 4th floor, London, W1U 7DF.
References: <20111128150400.GE6366@quack.suse.cz> <CAD-XujnH1UJXrEbYAKOSjvdwVnehj4_owuduhjR0RCUBqfrg0w@mail.gmail.com> <Pine.LNX.4.64.1111281612030.11895@hs20-bc2-1.build.redhat.com> <Pine.LNX.4.64.1111281754120.11895@hs20-bc2-1.build.redhat.com> <20111129101901.GA5635@quack.suse.cz> <20111129102156.GA7463@quack.suse.cz> <Pine.LNX.4.64.1111290556270.12274@hs20-bc2-1.build.redhat.com> <20111129111136.GC5635@quack.suse.cz> <Pine.LNX.4.64.1111290746230.10352@hs20-bc2-1.build.redhat.com> <20111129130913.GE5635@quack.suse.cz>
Reply-to: device-mapper development <dm-devel@xxxxxxxxxx>
User-agent: Mutt/1.5.18 (2008-05-17)

On Tue, Nov 29, 2011 at 02:09:13PM +0100, Jan Kara wrote:
>   Hmm, then why do these operations suspend the filesystem if they
> apparently don't need it? Sorry for my ignorance, I never seriously worked
> with LVM code...

They don't suspend it if they don't need to.

dm-ioctl.h:
/*
 * Set this to avoid attempting to freeze any filesystem when suspending.
 */
#define DM_SKIP_LOCKFS_FLAG     (1 << 10) /* In */

Alasdair
 

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- Re: [PATCH] deadlock with suspend and quotas
  - From: Jan Kara
- Re: [PATCH] deadlock with suspend and quotas
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