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Re: [PATCH 4/4] xfs: fix the logspace waiting algorithm

To: Chandra Seetharaman <sekharan@xxxxxxxxxx>
Subject: Re: [PATCH 4/4] xfs: fix the logspace waiting algorithm
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Fri, 2 Dec 2011 06:16:49 -0500
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <1322767713.7115.1548.camel@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
References: <20111128081732.350228200@xxxxxxxxxxxxxxxxxxxxxx> <20111128081925.981681380@xxxxxxxxxxxxxxxxxxxxxx> <1322767713.7115.1548.camel@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Thu, Dec 01, 2011 at 01:28:33PM -0600, Chandra Seetharaman wrote:
> Tested the patch with testcases 234 and 273. They ran for more than 350
> iterations without getting into the hang situation.
> 
> Tested-by: Chandra Seetharaman <sekharan@xxxxxxxxxx>
> 
> Few generic comments on the patch
> 
> 1. xlog_*_wake could use something to indicate that they are looking for
> log space in the specific queue. ex: xlog_reserveq_available()
> 
> 2. All new functions expect a lock to be held on entry. Can be
> explicitly specified in a comment.
> 
> 3. Change the trace function names to reflect the names of the
> function ?!

All this is going to change with the refactoring of these to use a
common data structure which I have in my queue for 3.3.

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