tree b75d2c4b93099413b1910909ee8b884370590c71
parent 4e8c765d384e549f9b542ea0bd42e2aa227e1404
author Jeff Layton <jlayton@redhat.com> 1371819497 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1372496264 +0400

locks: convert fl_link to a hlist_node

Testing has shown that iterating over the blocked_list for deadlock
detection turns out to be a bottleneck. In order to alleviate that,
begin the process of turning it into a hashtable. We start by turning
the fl_link into a hlist_node and the global lists into hlists. A later
patch will do the conversion of the blocked_list to a hashtable.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>