Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761934AbYFMJ0T (ORCPT ); Fri, 13 Jun 2008 05:26:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755041AbYFMJ0K (ORCPT ); Fri, 13 Jun 2008 05:26:10 -0400 Received: from fgwmail5.fujitsu.co.jp ([192.51.44.35]:60624 "EHLO fgwmail5.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754876AbYFMJ0I (ORCPT ); Fri, 13 Jun 2008 05:26:08 -0400 Date: Fri, 13 Jun 2008 18:31:05 +0900 From: KAMEZAWA Hiroyuki To: KAMEZAWA Hiroyuki Cc: "linux-mm@kvack.org" , LKML , "menage@google.com" , "balbir@linux.vnet.ibm.com" , "xemul@openvz.org" , "yamamoto@valinux.co.jp" , "nishimura@mxp.nes.nec.co.jp" , "lizf@cn.fujitsu.com" Subject: [PATCH 3/6] memcg: reset limit at rmdir Message-Id: <20080613183105.b3e88c25.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20080613182714.265fe6d2.kamezawa.hiroyu@jp.fujitsu.com> References: <20080613182714.265fe6d2.kamezawa.hiroyu@jp.fujitsu.com> Organization: Fujitsu X-Mailer: Sylpheed 2.4.2 (GTK+ 2.10.11; i686-pc-mingw32) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1844 Lines: 54 Reset res_counter's limit to be 0. Typically called when subysystem which uses res_counter is deleted. Change log: xxx -> v4 (new file) - cut out from memg hierarchy patch set(v3). Signed-off-by: KAMEZAWA Hiroyuki --- include/linux/res_counter.h | 2 ++ kernel/res_counter.c | 11 +++++++++++ 2 files changed, 13 insertions(+) Index: linux-2.6.26-rc5-mm3/include/linux/res_counter.h =================================================================== --- linux-2.6.26-rc5-mm3.orig/include/linux/res_counter.h +++ linux-2.6.26-rc5-mm3/include/linux/res_counter.h @@ -117,6 +117,8 @@ int __must_check res_counter_charge_lock int __must_check res_counter_charge(struct res_counter *counter, unsigned long val); +int res_counter_reset_limit(struct res_counter *counter); + /* * uncharge - tell that some portion of the resource is released * Index: linux-2.6.26-rc5-mm3/kernel/res_counter.c =================================================================== --- linux-2.6.26-rc5-mm3.orig/kernel/res_counter.c +++ linux-2.6.26-rc5-mm3/kernel/res_counter.c @@ -153,6 +153,17 @@ static int res_counter_resize_limit(stru return ret; } +/** + * res_counter_reset_limit - reset limit to be 0. + * @res: the res_counter to be reset. + * + * res_counter->limit is resized to be 0. return 0 at success. + */ + +int res_counter_reset_limit(struct res_counter *res) +{ + return res_counter_resize_limit(res, 0); +} ssize_t res_counter_write(struct res_counter *counter, int member, const char __user *userbuf, size_t nbytes, loff_t *pos, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/