From patchwork Thu Sep 2 21:55:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 12473031 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=-15.8 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 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 99A86C433F5 for ; Thu, 2 Sep 2021 21:55:22 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5117D610CE for ; Thu, 2 Sep 2021 21:55:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 5117D610CE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id F08056B00EF; Thu, 2 Sep 2021 17:55:21 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id EB8F76B00F0; Thu, 2 Sep 2021 17:55:21 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DA66F6B00F1; Thu, 2 Sep 2021 17:55:21 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0203.hostedemail.com [216.40.44.203]) by kanga.kvack.org (Postfix) with ESMTP id CBFDE6B00EF for ; Thu, 2 Sep 2021 17:55:21 -0400 (EDT) Received: from smtpin39.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 90976801E983 for ; Thu, 2 Sep 2021 21:55:21 +0000 (UTC) X-FDA: 78543990042.39.942941D Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf24.hostedemail.com (Postfix) with ESMTP id 25AC0B000099 for ; Thu, 2 Sep 2021 21:55:21 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 63BC0610A1; Thu, 2 Sep 2021 21:55:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1630619720; bh=u4W5TPoyhGJSKY9DzlyCbrzMVraMiDbgARH9v3hkkPs=; h=Date:From:To:Subject:In-Reply-To:From; b=m0MCMkUd3m2iZdPPryZmVjOxONnpboBVvDpzUjBDUZxQqIdLsdVkfS4McaqOqgkGH Ya6tmlcafC1MibA5dKW5O0rXiZ7X/twvbtIxdeLS2tBE+XSiVJPzitnphoN6cIIbWa uO8lc78TtSiXUPSH4zGB+DRwvt1rvkTTSL87cewU= Date: Thu, 02 Sep 2021 14:55:19 -0700 From: Andrew Morton To: 0x7f454c46@gmail.com, adobriyan@gmail.com, akpm@linux-foundation.org, avagin@gmail.com, axboe@kernel.dk, bfields@fieldses.org, bp@alien8.de, bp@suse.de, christian.brauner@ubuntu.com, ebiederm@xmission.com, gregkh@linuxfoundation.org, guro@fb.com, hannes@cmpxchg.org, hpa@zytor.com, jirislaby@kernel.org, jlayton@kernel.org, ktkhai@virtuozzo.com, linux-mm@kvack.org, lizefan.x@bytedance.com, mhocko@kernel.org, mingo@redhat.com, mm-commits@vger.kernel.org, nglaive@gmail.com, oleg@redhat.com, serge@hallyn.com, shakeelb@google.com, tglx@linutronix.de, tj@kernel.org, torvalds@linux-foundation.org, vdavydov.dev@gmail.com, viro@zeniv.linux.org.uk, vvs@virtuozzo.com Subject: [patch 101/212] memcg: enable accounting for file lock caches Message-ID: <20210902215519.AWcuVc3li%akpm@linux-foundation.org> In-Reply-To: <20210902144820.78957dff93d7bea620d55a89@linux-foundation.org> User-Agent: s-nail v14.8.16 Authentication-Results: imf24.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=m0MCMkUd; spf=pass (imf24.hostedemail.com: domain of akpm@linux-foundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 25AC0B000099 X-Stat-Signature: 4q6jqaw7o6rqpnqth975yp685atp9why X-HE-Tag: 1630619721-586034 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Vasily Averin Subject: memcg: enable accounting for file lock caches 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. Link: https://lkml.kernel.org/r/b009f4c7-f0ab-c0ec-8e83-918f47d677da@virtuozzo.com Signed-off-by: Vasily Averin Reviewed-by: Shakeel Butt Cc: Alexander Viro Cc: Alexey Dobriyan Cc: Andrei Vagin Cc: Borislav Petkov Cc: Borislav Petkov Cc: Christian Brauner Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: "Eric W. Biederman" Cc: Greg Kroah-Hartman Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: "J. Bruce Fields" Cc: Jeff Layton Cc: Jens Axboe Cc: Jiri Slaby Cc: Johannes Weiner Cc: Kirill Tkhai Cc: Michal Hocko Cc: Oleg Nesterov Cc: Roman Gushchin Cc: Serge Hallyn Cc: Tejun Heo Cc: Thomas Gleixner Cc: Vladimir Davydov Cc: Yutian Yang Cc: Zefan Li Signed-off-by: Andrew Morton Reported-by: kernel test robot --- fs/locks.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) --- a/fs/locks.c~memcg-enable-accounting-for-file-lock-caches +++ a/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);