From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752413Ab3F0FDY (ORCPT ); Thu, 27 Jun 2013 01:03:24 -0400 Received: from mail-pb0-f49.google.com ([209.85.160.49]:62890 "EHLO mail-pb0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752304Ab3F0FDV (ORCPT ); Thu, 27 Jun 2013 01:03:21 -0400 From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Cc: Alexey Kardashevskiy , David Gibson , Benjamin Herrenschmidt , Alexander Graf , Paul Mackerras , Alex Williamson , "Paul E . McKenney" , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, kvm-ppc@vger.kernel.org Subject: [PATCH 4/8] hashtable: add hash_for_each_possible_rcu_notrace() Date: Thu, 27 Jun 2013 15:02:32 +1000 Message-Id: <1372309356-28320-5-git-send-email-aik@ozlabs.ru> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1372309356-28320-1-git-send-email-aik@ozlabs.ru> References: <1372309356-28320-1-git-send-email-aik@ozlabs.ru> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds hash_for_each_possible_rcu_notrace() which is basically a notrace clone of hash_for_each_possible_rcu() which cannot be used in real mode due to its tracing/debugging capability. Signed-off-by: Alexey Kardashevskiy --- include/linux/hashtable.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/include/linux/hashtable.h b/include/linux/hashtable.h index a9df51f..af8b169 100644 --- a/include/linux/hashtable.h +++ b/include/linux/hashtable.h @@ -174,6 +174,21 @@ static inline void hash_del_rcu(struct hlist_node *node) member) /** + * hash_for_each_possible_rcu_notrace - iterate over all possible objects hashing + * to the same bucket in an rcu enabled hashtable in a rcu enabled hashtable + * @name: hashtable to iterate + * @obj: the type * to use as a loop cursor for each entry + * @member: the name of the hlist_node within the struct + * @key: the key of the objects to iterate over + * + * This is the same as hash_for_each_possible_rcu() except that it does + * not do any RCU debugging or tracing. + */ +#define hash_for_each_possible_rcu_notrace(name, obj, member, key) \ + hlist_for_each_entry_rcu_notrace(obj, &name[hash_min(key, HASH_BITS(name))],\ + member) + +/** * hash_for_each_possible_safe - iterate over all possible objects hashing to the * same bucket safe against removals * @name: hashtable to iterate -- 1.7.10.4