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To: Kamal Mostafa <kamal.mostafa@canonical.com>
From: Joseph Salisbury <joseph.salisbury@canonical.com>
Subject: [PATCH][v3.13.y-ckt]umount: Do not allow unmounting rootfs.
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Cc: ebiederm@xmission.com, Alexander Viro <viro@zeniv.linux.org.uk>,
        linux-fsdevel@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
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Date: Fri, 12 Feb 2016 14:58:43 -0500
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Hello,

Please consider including mainline commit
da362b09e42ee0bcaf0356afee6078b4f324baff in the next v3.13.y-ckt
release.  It was
included in the mainline tree as of v3.19-rc1.  It has been tested and
confirmed to resolve http://bugs.launchpad.net/bugs/1541313 .

commit da362b09e42ee0bcaf0356afee6078b4f324baff
Author: Eric W. Biederman <ebiederm@xmission.com>
Date:   Tue Oct 7 12:19:53 2014 -0700

    umount: Do not allow unmounting rootfs.


Sincerely,

Joseph Salisbury