From: David Chinner <dgc@sgi.com>
Date: Thu, 24 May 2007 05:22:19 +0000 (+1000)
Subject: [XFS] Make hole punching at EOF atomic.
X-Git-Tag: v2.6.23-rc1~1056^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=92dfe8d266eaf35a50607a0e0dcf525e1d367c80;p=pandora-kernel.git

[XFS] Make hole punching at EOF atomic.

If hole punching at EOF is done as two steps (i.e. truncate then extend)
the file is in a transient state between the two steps where an
application can see the incorrect file size. Punching a hole to EOF needs
to be treated in teh same way as all other hole punching cases so that the
file size is never seen to change.

SGI-PV: 962012
SGI-Modid: xfs-linux-melb:xfs-kern:28641a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Vlad Apostolov <vapo@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
---

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