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mnt: Factor out unhash_mnt from detach_mnt and umount_tree
authorEric W. Biederman <ebiederm@xmission.com>
Mon, 29 Dec 2014 19:03:41 +0000 (13:03 -0600)
committerEric W. Biederman <ebiederm@xmission.com>
Thu, 9 Apr 2015 16:39:54 +0000 (11:39 -0500)
commit7bdb11de8ee4f4ae195e2fa19efd304e0b36c63b
tree2ee3fe90e5ac72a2b36c91947b38c3e6da9a9012tree | snapshot
parentcd4a40174b71acd021877341684d8bb1dc8ea4aecommit | diff
mnt: Factor out unhash_mnt from detach_mnt and umount_tree

Create a function unhash_mnt that contains the common code between
detach_mnt and umount_tree, and use unhash_mnt in place of the common
code.  This add a unncessary list_del_init(mnt->mnt_child) into
umount_tree but given that mnt_child is already empty this extra
line is a noop.

Cc: stable@vger.kernel.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
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