tree f630c4138ceb3889e08c5cd0029d2f07ec47dd0a
parent ac7576f4b1da8c9c6bc1ae026c2b9e86ae617ba5
author Al Viro <viro@zeniv.linux.org.uk> 1413919242 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1414792134 -0400

new helper: is_root_inode()

replace open-coded instances

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