From mboxrd@z Thu Jan 1 00:00:00 1970 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=-11.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MIME_BASE64_TEXT,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_AGENT_GIT 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 DE32DC433E0 for ; Tue, 11 Aug 2020 04:44:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CBAA9206C3 for ; Tue, 11 Aug 2020 04:44:53 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="ONsVnW4j" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726740AbgHKEow (ORCPT ); Tue, 11 Aug 2020 00:44:52 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:6055 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1725942AbgHKEow (ORCPT ); Tue, 11 Aug 2020 00:44:52 -0400 X-UUID: 5959afdaa73f485dbf2a6c30c94c07e7-20200811 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=H0Ud4DxvbVD4jTTU4mw6Oz6ngOHpGn6wmSjAa92YZU4=; b=ONsVnW4jjYfqo1a961AXrBDoUsy/D9qAoVr2s937dlp1KmQSnv+pn9nLi0+H7boIi11f2aeb48D2c0y05sETc5obNfGqx83tYqnIXFnDaIUeBCKZg4j1m0hLBQHzmu3db7Kcg7/a3mA0hGCAdrIlfxTfMJlUFBP+hrwxSZUpZHo=; X-UUID: 5959afdaa73f485dbf2a6c30c94c07e7-20200811 Received: from mtkcas11.mediatek.inc [(172.21.101.40)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 651182344; Tue, 11 Aug 2020 12:44:48 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 11 Aug 2020 12:44:46 +0800 Received: from mtkswgap22.mediatek.inc (172.21.77.33) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 11 Aug 2020 12:44:46 +0800 From: Chinwen Chang To: Matthias Brugger , Michel Lespinasse , Andrew Morton , Vlastimil Babka , Daniel Jordan , Davidlohr Bueso , Chinwen Chang , Alexey Dobriyan , "Matthew Wilcox (Oracle)" , Jason Gunthorpe , Steven Price , Song Liu , Jimmy Assarsson , Huang Ying CC: , , , , Subject: [PATCH 1/2] mmap locking API: add mmap_lock_is_contended() Date: Tue, 11 Aug 2020 12:42:34 +0800 Message-ID: <1597120955-16495-2-git-send-email-chinwen.chang@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1597120955-16495-1-git-send-email-chinwen.chang@mediatek.com> References: <1597120955-16495-1-git-send-email-chinwen.chang@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org QWRkIG5ldyBBUEkgdG8gcXVlcnkgaWYgc29tZW9uZSB3YW50cyB0byBhY3F1aXJlIG1tYXBfbG9j aw0KZm9yIHdyaXRlIGF0dGVtcHRzLg0KDQpVc2luZyB0aGlzIGluc3RlYWQgb2YgcndzZW1faXNf Y29udGVuZGVkIG1ha2VzIGl0IG1vcmUgdG9sZXJhbnQNCm9mIGZ1dHVyZSBjaGFuZ2VzIHRvIHRo ZSBsb2NrIHR5cGUuDQoNClNpZ25lZC1vZmYtYnk6IENoaW53ZW4gQ2hhbmcgPGNoaW53ZW4uY2hh bmdAbWVkaWF0ZWsuY29tPg0KLS0tDQogaW5jbHVkZS9saW51eC9tbWFwX2xvY2suaCB8IDUgKysr KysNCiAxIGZpbGUgY2hhbmdlZCwgNSBpbnNlcnRpb25zKCspDQoNCmRpZmYgLS1naXQgYS9pbmNs dWRlL2xpbnV4L21tYXBfbG9jay5oIGIvaW5jbHVkZS9saW51eC9tbWFwX2xvY2suaA0KaW5kZXgg MDcwNzY3MS4uMThlN2VhZSAxMDA2NDQNCi0tLSBhL2luY2x1ZGUvbGludXgvbW1hcF9sb2NrLmgN CisrKyBiL2luY2x1ZGUvbGludXgvbW1hcF9sb2NrLmgNCkBAIC04Nyw0ICs4Nyw5IEBAIHN0YXRp YyBpbmxpbmUgdm9pZCBtbWFwX2Fzc2VydF93cml0ZV9sb2NrZWQoc3RydWN0IG1tX3N0cnVjdCAq bW0pDQogCVZNX0JVR19PTl9NTSghcndzZW1faXNfbG9ja2VkKCZtbS0+bW1hcF9sb2NrKSwgbW0p Ow0KIH0NCiANCitzdGF0aWMgaW5saW5lIGludCBtbWFwX2xvY2tfaXNfY29udGVuZGVkKHN0cnVj dCBtbV9zdHJ1Y3QgKm1tKQ0KK3sNCisJcmV0dXJuIHJ3c2VtX2lzX2NvbnRlbmRlZCgmbW0tPm1t YXBfbG9jayk7DQorfQ0KKw0KICNlbmRpZiAvKiBfTElOVVhfTU1BUF9MT0NLX0ggKi8NCi0tIA0K MS45LjENCg==