From patchwork Wed Oct 19 09:56:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Atanasov X-Patchwork-Id: 13011539 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 08D66C4332F for ; Wed, 19 Oct 2022 09:56:49 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6F85D6B0072; Wed, 19 Oct 2022 05:56:49 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6A9786B0073; Wed, 19 Oct 2022 05:56:49 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 598716B0074; Wed, 19 Oct 2022 05:56:49 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 4A1EF6B0072 for ; Wed, 19 Oct 2022 05:56:49 -0400 (EDT) Received: from smtpin30.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id D9C2C1607DA for ; Wed, 19 Oct 2022 09:56:48 +0000 (UTC) X-FDA: 80037244896.30.CAE02DE Received: from relay.virtuozzo.com (relay.virtuozzo.com [130.117.225.111]) by imf12.hostedemail.com (Postfix) with ESMTP id 3936840013 for ; Wed, 19 Oct 2022 09:56:47 +0000 (UTC) Received: from dev011.ch-qa.sw.ru ([172.29.1.16]) by relay.virtuozzo.com with esmtp (Exim 4.95) (envelope-from ) id 1ol5la-00B8K8-3t; Wed, 19 Oct 2022 11:56:28 +0200 From: Alexander Atanasov To: "Michael S. Tsirkin" , David Hildenbrand , Andrew Morton Cc: kernel@openvz.org, Alexander Atanasov , virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v5 2/8] mm: Enable balloon drivers to report inflated memory Date: Wed, 19 Oct 2022 12:56:14 +0300 Message-Id: <20221019095620.124909-3-alexander.atanasov@virtuozzo.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20221019095620.124909-1-alexander.atanasov@virtuozzo.com> References: <20221019095620.124909-1-alexander.atanasov@virtuozzo.com> MIME-Version: 1.0 ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1666173408; a=rsa-sha256; cv=none; b=ncQuSmyXE0FcKW/ev7IjUD6/eWn+Hx24czAgXVuHG+iEpdTn5Uf0BPU/N/B3raex8ob8ux ihjRealcVNHSz6SjCW+AqR7gFi4w8pIm6tbZhGnyUp26tIlBWQaohSoj8QW1yLcXgr2GOb U9IO3hIj15aneE4BRwUUUek35mnq3Uo= ARC-Authentication-Results: i=1; imf12.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=virtuozzo.com; spf=pass (imf12.hostedemail.com: domain of alexander.atanasov@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=alexander.atanasov@virtuozzo.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1666173408; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=eH/0PNfBQFD/UE1s0SF9vXZ+c1loynZS8MwxGGWgzQQ=; b=ou+39oIa37ndICDH/+bgATbPJMQmn8ga4FnlqeerMcMYZxky6/C113t1NHHR2XQALiJPmO 69VVrB2SR1FDBeuKEzCQaH46INXZSrm/lm2kqqiEq7K3Qd9zEAddMkYcRlGKfdhWjuykcL aMUWSONg6C/YVdkqEWzhdjue+ZpZN4U= X-Rspamd-Queue-Id: 3936840013 Authentication-Results: imf12.hostedemail.com; dkim=none; dmarc=pass (policy=quarantine) header.from=virtuozzo.com; spf=pass (imf12.hostedemail.com: domain of alexander.atanasov@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=alexander.atanasov@virtuozzo.com X-Rspam-User: X-Rspamd-Server: rspam08 X-Stat-Signature: xibmp9311oxqtk1hnmh7mkzwqo17mcrz X-HE-Tag: 1666173407-381095 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: Add counters to be updated by the balloon drivers. Signed-off-by: Alexander Atanasov --- include/linux/balloon.h | 6 ++++++ mm/balloon.c | 15 +++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/include/linux/balloon.h b/include/linux/balloon.h index 46ac8f61f607..dd8fb8ac5737 100644 --- a/include/linux/balloon.h +++ b/include/linux/balloon.h @@ -57,6 +57,12 @@ struct balloon_dev_info { struct page *page, enum migrate_mode mode); }; +extern atomic_long_t mem_balloon_inflated_total_kb; +extern atomic_long_t mem_balloon_inflated_free_kb; + +void balloon_set_inflated_total(long inflated_kb); +void balloon_set_inflated_free(long inflated_kb); + struct page *balloon_page_alloc(void); void balloon_page_enqueue(struct balloon_dev_info *b_dev_info, struct page *page); diff --git a/mm/balloon.c b/mm/balloon.c index 22b3e876bc78..59f606bf4390 100644 --- a/mm/balloon.c +++ b/mm/balloon.c @@ -9,6 +9,21 @@ #include #include +atomic_long_t mem_balloon_inflated_total_kb = ATOMIC_LONG_INIT(0); +atomic_long_t mem_balloon_inflated_free_kb = ATOMIC_LONG_INIT(0); + +void balloon_set_inflated_total(long inflated_kb) +{ + atomic_long_set(&mem_balloon_inflated_total_kb, inflated_kb); +} +EXPORT_SYMBOL(balloon_set_inflated_total); + +void balloon_set_inflated_free(long inflated_kb) +{ + atomic_long_set(&mem_balloon_inflated_free_kb, inflated_kb); +} +EXPORT_SYMBOL(balloon_set_inflated_free); + static void balloon_page_enqueue_one(struct balloon_dev_info *b_dev_info, struct page *page) {