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From: David Chinner <dgc@sgi.com>
To: Timothy Shimmin <tes@sgi.com>
Cc: David Chinner <dgc@sgi.com>, xfs-dev <xfs-dev@sgi.com>,
	xfs-oss <xfs@oss.sgi.com>
Subject: Re: [patch] Prevent AIL lock contention during transaction completion
Date: Fri, 25 Jan 2008 18:42:35 +1100	[thread overview]
Message-ID: <20080125074235.GI155407@sgi.com> (raw)
In-Reply-To: <479986F5.7070800@sgi.com>

On Fri, Jan 25, 2008 at 05:51:33PM +1100, Timothy Shimmin wrote:
> So do we really need to call xlog_assign_tail_lsn() then?
> Or are we just being conservative in case we missed something?

Conservative - the last thing I want is to introduce a subtle
difference to the tail lsn in the log record because we didn't
update it immediately before writing it to disk. I think we are
probably safe removing it, but lets leave that until we got some
wider test coverage on this change first....

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group

  reply	other threads:[~2008-01-25  7:42 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-21  5:23 [patch] Prevent AIL lock contention during transaction completion David Chinner
2008-01-23  7:12 ` Timothy Shimmin
2008-01-23  7:34   ` David Chinner
2008-01-25  6:51     ` Timothy Shimmin
2008-01-25  7:42       ` David Chinner [this message]
2008-02-14 23:45         ` David Chinner
2008-02-14 23:52           ` Timothy Shimmin

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