From: Tao Ma <boyu.mt@taobao.com>
Date: Mon, 7 Mar 2011 08:43:21 +0000 (+0800)
Subject: ocfs2: Remove EXIT from masklog.
X-Git-Tag: v2.6.39-rc1~26^2~1^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c1e8d35ef5ffb393b94a192034b5e3541e005d75;p=pandora-kernel.git

ocfs2: Remove EXIT from masklog.

mlog_exit is used to record the exit status of a function.
But because it is added in so many functions, if we enable it,
the system logs get filled up quickly and cause too much I/O.
So actually no one can open it for a production system or even
for a test.

This patch just try to remove it or change it. So:
1. if all the error paths already use mlog_errno, it is just removed.
   Otherwise, it will be replaced by mlog_errno.
2. if it is used to print some return value, it is replaced with
   mlog(0,...).
mlog_exit_ptr is changed to mlog(0.
All those mlog(0,...) will be replaced with trace events later.

Signed-off-by: Tao Ma <boyu.mt@taobao.com>
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