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From: Christoph Hellwig <hch@lst.de>
To: Brian Foster <bfoster@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>, linux-xfs@vger.kernel.org
Subject: Re: [PATCH 2/4] xfs: improve handling of busy extents in the low-level allocator
Date: Tue, 7 Feb 2017 10:43:32 +0100	[thread overview]
Message-ID: <20170207094332.GD15267@lst.de> (raw)
In-Reply-To: <20170206164750.GG57865@bfoster.bfoster>

On Mon, Feb 06, 2017 at 11:47:50AM -0500, Brian Foster wrote:
> That said, that limitation should be noted somewhere. Can we add a
> comment in xfs_extent_busy_clear() right above the hunk where we do the
> SKIP_DISCARD wake? E.g., something that points out the gen number for
> any particular extent could be bumped in such a situation.. (or
> something along those lines)?

I could add a comment, but given that the tree tracks busy extents
and is not in any way specific to discard I think it's more confusing
than not having it.

  reply	other threads:[~2017-02-07  9:43 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-29 18:43 improve busy extent handling and add async discard support Christoph Hellwig
2017-01-29 18:43 ` [PATCH 1/4] xfs: don't fail xfs_extent_busy allocation Christoph Hellwig
2017-02-03 15:20   ` Brian Foster
2017-02-04  9:50     ` Christoph Hellwig
2017-02-06 16:43       ` Brian Foster
2017-02-07  9:42         ` Christoph Hellwig
2017-01-29 18:43 ` [PATCH 2/4] xfs: improve handling of busy extents in the low-level allocator Christoph Hellwig
2017-02-03 15:22   ` Brian Foster
2017-02-04  9:54     ` Christoph Hellwig
2017-02-03 16:22   ` Brian Foster
2017-02-04  9:56     ` Christoph Hellwig
2017-02-06 16:47       ` Brian Foster
2017-02-07  9:43         ` Christoph Hellwig [this message]
2017-02-07 13:13           ` Brian Foster
2017-02-07 15:45             ` Christoph Hellwig
2017-01-29 18:43 ` [PATCH 3/4] xfs: improve busy extent sorting Christoph Hellwig
2017-02-03 15:22   ` Brian Foster
2017-02-04  9:58     ` Christoph Hellwig
2017-01-29 18:43 ` [PATCH 4/4] xfs: don't block the log commit handler for discards Christoph Hellwig
2017-02-03 16:22   ` Brian Foster
2017-02-04  9:59     ` Christoph Hellwig
2017-02-06 16:49       ` Brian Foster
2017-02-07  9:50         ` Christoph Hellwig
2017-02-05 17:11 improve busy extent handling and add async discard support V2 Christoph Hellwig
2017-02-05 17:11 ` [PATCH 2/4] xfs: improve handling of busy extents in the low-level allocator Christoph Hellwig

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