tree e4e4c24ee40d721196113df16d5d250bd1e8beac
parent d42b386834ee1c22f6fac2f856bba8a6e4de38bb
author Al Viro <viro@zeniv.linux.org.uk> 1464235498 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1464235498 -0400

add down_write_killable_nested()

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