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Re: [dm-devel] [PATCH] deadlock with suspend and quotas
- From: Alasdair G Kergon <agk redhat com>
- To: Jan Kara <jack suse cz>
- Cc: esandeen redhat com, Surbhi Palande <csurbhi gmail com>, linux-kernel vger kernel org, dm-devel redhat com, Mikulas Patocka <mpatocka redhat com>, linux-fsdevel vger kernel org, Christopher Chaltain <christopher chaltain canonical com>, Valerie Aurora <val vaaconsulting com>
- Subject: Re: [dm-devel] [PATCH] deadlock with suspend and quotas
- Date: Tue, 29 Nov 2011 13:18:11 +0000
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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