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Re: [PATCH] [RFC v2] xfs: byte range buffer dirty region tracking

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH] [RFC v2] xfs: byte range buffer dirty region tracking
From: Mark Tinguely <tinguely@xxxxxxx>
Date: Wed, 03 Jun 2015 09:19:12 -0500
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1432865777-14616-1-git-send-email-david@xxxxxxxxxxxxx>
References: <1432865777-14616-1-git-send-email-david@xxxxxxxxxxxxx>
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On 05/28/15 21:16, Dave Chinner wrote:
Discussion:

I think that we will eventually need to track multiple regions - 3
is probably sufficient - because the nature of directory operations
are that just about every operation modifies a header in the buffer,
a tail section in the buffer and then some number of bytes/regions
in the middle of the buffer.

Nod to the idea.

What made you change from your original idea of using 4 regions to 3 regions?

--Mark.

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