Theodore Ts'o 9a9dc3ec7c ext4: lock the xattr block before checksuming it
commit dac7a4b4b1f664934e8b713f529b629f67db313c upstream.

We must lock the xattr block before calculating or verifying the
checksum in order to avoid spurious checksum failures.

https://bugzilla.kernel.org/show_bug.cgi?id=193661

Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-30 09:41:25 +02:00
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