From: Christoph Hellwig <hch@lst.de>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>, linux-xfs@vger.kernel.org
Subject: Re: [PATCH v2] xfs: use per-AG reservations for the finobt
Date: Tue, 24 Jan 2017 20:50:50 +0100 [thread overview]
Message-ID: <20170124195050.GA1025@lst.de> (raw)
In-Reply-To: <20170124164837.GI4780@birch.djwong.org>
On Tue, Jan 24, 2017 at 08:48:37AM -0800, Darrick J. Wong wrote:
> I'd just print out:
>
> "Per-AG reservation for AG ${agno} failed. Filesystem may run out of space."
Sure, I can do that.
>
> if any of the (now three) invocations of __xfs_ag_resv_init() returns
> ENOSPC, since the AG is more than 98% full. Some day, a sysadmin could
> then use the fsmap data to identify which inodes are using the most
> space in that AG and arrange to migrate/remove/etc the data to another
> AG.
But for all but the reflink one this can't happen as the reservations
have been there since the beginning. And if they fail neverless we fail
the mount. Or am I missing something here?
next prev parent reply other threads:[~2017-01-24 19:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-23 18:05 [PATCH v2] xfs: use per-AG reservations for the finobt Christoph Hellwig
2017-01-23 19:28 ` Darrick J. Wong
2017-01-24 14:02 ` Christoph Hellwig
2017-01-24 16:48 ` Darrick J. Wong
2017-01-24 19:50 ` Christoph Hellwig [this message]
2017-01-24 20:05 ` Darrick J. Wong
2017-01-24 14:06 ` Brian Foster
2017-01-24 14:49 ` Christoph Hellwig
2017-01-24 16:19 ` Brian Foster
2017-01-24 18:27 ` Darrick J. Wong
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