From patchwork Mon Jul 26 19:01:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vasily Averin X-Patchwork-Id: 12400627 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DFA14C432BE for ; Mon, 26 Jul 2021 19:01:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BD96760F11 for ; Mon, 26 Jul 2021 19:01:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232177AbhGZSVA (ORCPT ); Mon, 26 Jul 2021 14:21:00 -0400 Received: from relay.sw.ru ([185.231.240.75]:55274 "EHLO relay.sw.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232799AbhGZSUe (ORCPT ); Mon, 26 Jul 2021 14:20:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Content-Type:MIME-Version:Date:Message-ID:Subject :From; bh=Y/DbUubFB7jqdWx1m9No/2F70Z4aAsJqjDWHRW9Ebg8=; b=DDjhoUsvboC2HFxAKC8 3cmTNlEc9kXKbUGILhLybHNEaTqPXt/wphVg1ENIW87NzsTSKfme1I5perjZNgHRuFLfPG3MpxdT6 0/33g69EP952EiKmN1O1Ou9Xdea/Nhe4rHbaCOR/VxPbDCMMVbmeSxG39o3BcO8lLjhyQWdmlzw=; Received: from [10.93.0.56] by relay.sw.ru with esmtp (Exim 4.94.2) (envelope-from ) id 1m85qW-005JUu-TB; Mon, 26 Jul 2021 22:01:01 +0300 From: Vasily Averin Subject: [PATCH v6 09/16] memcg: enable accounting for file lock caches To: Andrew Morton Cc: cgroups@vger.kernel.org, Michal Hocko , Shakeel Butt , Johannes Weiner , Vladimir Davydov , Roman Gushchin , Alexander Viro , Jeff Layton , "J. Bruce Fields" , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org References: <9bf9d9bd-03b1-2adb-17b4-5d59a86a9394@virtuozzo.com> Message-ID: <22c439e5-d66c-97ad-1d04-f5579527b11a@virtuozzo.com> Date: Mon, 26 Jul 2021 22:01:00 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org User can create file locks for each open file and force kernel to allocate small but long-living objects per each open file. It makes sense to account for these objects to limit the host's memory consumption from inside the memcg-limited container. Signed-off-by: Vasily Averin --- fs/locks.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/locks.c b/fs/locks.c index 74b2a1d..1bc7ede 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -3056,10 +3056,12 @@ static int __init filelock_init(void) int i; flctx_cache = kmem_cache_create("file_lock_ctx", - sizeof(struct file_lock_context), 0, SLAB_PANIC, NULL); + sizeof(struct file_lock_context), 0, + SLAB_PANIC | SLAB_ACCOUNT, NULL); filelock_cache = kmem_cache_create("file_lock_cache", - sizeof(struct file_lock), 0, SLAB_PANIC, NULL); + sizeof(struct file_lock), 0, + SLAB_PANIC | SLAB_ACCOUNT, NULL); for_each_possible_cpu(i) { struct file_lock_list_struct *fll = per_cpu_ptr(&file_lock_list, i);