tree 1aec0bdee83753205be2a6bbe0486db08984f938
parent bec1052e5be6a70f03f6adc650f3a6e4c2f44ddf
author Al Viro <viro@zeniv.linux.org.uk> 1267643588 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1267643588 -0500

fix race in d_splice_alias()

rehashing the negative placeholder opens a race with d_lookup();
we unhash it almost immediately (by d_move()), but the race
window is there.  Since d_move() doesn't rely on target being
hashed, we don't need that d_rehash() at all.

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