From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:38715 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750771AbeD3Eb6 (ORCPT ); Mon, 30 Apr 2018 00:31:58 -0400 From: NeilBrown To: "Paul E. McKenney" , Trond Myklebust , Mathieu Desnoyers , Anna Schumaker Date: Mon, 30 Apr 2018 14:31:30 +1000 Subject: [PATCH 0/4 V2] Avoid quadratic search when freeing delegations Cc: linux-nfs@vger.kernel.org, Lai Jiangshan , Josh Triplett , Steven Rostedt , linux-kernel@vger.kernel.org Message-ID: <152506256513.7246.13171564155614823841.stgit@noble> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-nfs-owner@vger.kernel.org List-ID: Following review from Mathieu (thanks) I've made some revisions and split this into four patches. The RCU change is now in patch 3 by itself. I've also revised the description in the main (final) patch quite a bit. Thanks, NeilBrown --- NeilBrown (4): NFS: slight optimization for walking list for delegations NFS: use cond_resched() when restarting walk of delegation list. rculist: add list_for_each_entry_from_rcu() NFS: Avoid quadratic search when freeing delegations. fs/nfs/delegation.c | 66 ++++++++++++++++++++++++++++++++++++++++++----- include/linux/rculist.h | 13 +++++++++ 2 files changed, 72 insertions(+), 7 deletions(-) -- Signature