fold release_mounts() into namespace_unlock()
authorAl Viro <viro@zeniv.linux.org.uk>
Sat, 16 Mar 2013 19:12:40 +0000 (15:12 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Tue, 9 Apr 2013 18:12:54 +0000 (14:12 -0400)
... and provide namespace_lock() as a trivial wrapper;
switch to those two consistently.

Result is patterned after rtnl_lock/rtnl_unlock pair.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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