From: Dave Chinner <david@fromorbit.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 01/12] xfs: convert log grant ticket queues to list heads
Date: Tue, 21 Dec 2010 11:55:41 +1100 [thread overview]
Message-ID: <20101221005541.GO5193@dastard> (raw)
In-Reply-To: <20101220113458.GA12806@infradead.org>
On Mon, Dec 20, 2010 at 06:34:58AM -0500, Christoph Hellwig wrote:
> On Mon, Dec 13, 2010 at 03:44:32PM +1100, Dave Chinner wrote:
> > - __field(void *, reserve_headq)
> > - __field(void *, write_headq)
> > + __field(void *, reserveq)
> > + __field(void *, writeq)
>
> To repeat my question from the last review: what's the point in logging
> this at all? There's not much we can do with it from trace-cmd / perf
> output. What might be more useful is a list_empty() boolean flag.
Oh, I missed that when running through all the comments. Thanks for
pointing it out again - I'll fix it this time.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
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next prev parent reply other threads:[~2010-12-21 0:53 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-13 4:44 xfs: grant lock scaling and removal V3 Dave Chinner
2010-12-13 4:44 ` [PATCH 01/12] xfs: convert log grant ticket queues to list heads Dave Chinner
2010-12-20 11:34 ` Christoph Hellwig
2010-12-21 0:55 ` Dave Chinner [this message]
2010-12-13 4:44 ` [PATCH 02/12] xfs: fact out common grant head/log tail verification code Dave Chinner
2010-12-20 11:51 ` Christoph Hellwig
2010-12-13 4:44 ` [PATCH 03/12] xfs: rework log grant space calculations Dave Chinner
2010-12-20 11:37 ` Christoph Hellwig
2010-12-13 4:44 ` [PATCH 04/12] xfs: combine grant heads into a single 64 bit integer Dave Chinner
2010-12-20 11:40 ` Christoph Hellwig
2010-12-13 4:44 ` [PATCH 05/12] xfs: use wait queues directly for the log wait queues Dave Chinner
2010-12-20 11:40 ` Christoph Hellwig
2010-12-13 4:44 ` [PATCH 06/12] xfs: make AIL tail pushing independent of the grant lock Dave Chinner
2010-12-20 11:41 ` Christoph Hellwig
2010-12-13 4:44 ` [PATCH 07/12] xfs: convert l_last_sync_lsn to an atomic variable Dave Chinner
2010-12-13 4:44 ` [PATCH 08/12] xfs: convert l_tail_lsn " Dave Chinner
2010-12-20 12:06 ` Christoph Hellwig
2010-12-21 1:27 ` Dave Chinner
2010-12-13 4:44 ` [PATCH 09/12] xfs: convert log grant heads to atomic variables Dave Chinner
2010-12-13 4:44 ` [PATCH 10/12] xfs: introduce new locks for the log grant ticket wait queues Dave Chinner
2010-12-20 11:49 ` Christoph Hellwig
2010-12-13 4:44 ` [PATCH 11/12] xfs: convert grant head manipulations to lockless algorithm Dave Chinner
2010-12-20 11:50 ` Christoph Hellwig
2010-12-13 4:44 ` [PATCH 12/12] xfs: kill useless spinlock_destroy macro Dave Chinner
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