From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 31 May 2012 02:56:46 +0000 (-0400)
Subject: ext4: add debugging trigger for ext4_error()
X-Git-Tag: v3.5-rc1~16^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c0544b23568674efba22532e1f25fb62ce10163;p=pandora-kernel.git

ext4: add debugging trigger for ext4_error()

Make it easy to test whether or not the error handling subsystem in
ext4 is working correctly.  This allows us to simulate an ext4_error()
by echoing a string to /sys/fs/ext4/<dev>/trigger_fs_error.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: ksumrall@google.com
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