tree 168ea89fd898a2a0c70601d252171fc1a76f15f9
parent 59eda0e07f43c950d31756213b607af673e551f0
author Al Viro <viro@zeniv.linux.org.uk> 1420934468 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1422245849 -0500

switch the IO-triggering parts of umount to fs_pin

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