From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 16 Dec 2009 08:54:00 +0000 (-0500)
Subject: O_TRUNC open shouldn't fail after file truncation
X-Git-Tag: v2.6.33-rc1~49^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7715b521222b6ebb6e927fa261ed91ed687fe454;p=pandora-kernel.git

O_TRUNC open shouldn't fail after file truncation

* take truncate logics into a helper (handle_truncate())
* rip it out of may_open()
* call it from the only caller of may_open() that might pass
O_TRUNC
* and do that after we'd finished with opening.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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