From 624080eded68738daee041ad64672a9d2614754f Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 6 Jun 2008 17:50:40 -0400
Subject: [PATCH] jbd2: If a journal checksum error is detected, propagate the
 error to ext4

If a journal checksum error is detected, the ext4 filesystem will call
ext4_error(), and the mount will either continue, become a read-only
mount, or cause a kernel panic based on the superblock flags
indicating the user's preference of what to do in case of filesystem
corruption being detected.

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