From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 5 May 2006 20:59:11 +0000 (-0400)
Subject: [GFS2] Readpages support
X-Git-Tag: v2.6.19-rc1~32^2~204
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd88de569b802c4a04aaa6ee74667775f4aed8c6;p=pandora-kernel.git

[GFS2] Readpages support

This adds readpages support (and also corrects a small bug in
the readpage error path at the same time). Hopefully this will
improve performance by allowing GFS to submit larger lumps of
I/O at a time.

In order to simplify the setting of BH_Boundary, it currently gets
set when we hit the end of a indirect pointer block. There is
always a boundary at this point with the current allocation code.
It doesn't get all the boundaries right though, so there is still
room for improvement in this.

See comments in fs/gfs2/ops_address.c for further information about
readpages with GFS2.

Signed-off-by: Steven Whitehouse
---

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