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=-11.1 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,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 E5EB3C4363D for ; Mon, 5 Oct 2020 02:40:42 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 690172078E for ; Mon, 5 Oct 2020 02:40:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="jbdD1eL6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 690172078E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id E814C6B0062; Sun, 4 Oct 2020 22:40:41 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E0B276B0068; Sun, 4 Oct 2020 22:40:41 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CD3136B006C; Sun, 4 Oct 2020 22:40:41 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0002.hostedemail.com [216.40.44.2]) by kanga.kvack.org (Postfix) with ESMTP id 9C3536B0062 for ; Sun, 4 Oct 2020 22:40:41 -0400 (EDT) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 2EAF08249980 for ; Mon, 5 Oct 2020 02:40:41 +0000 (UTC) X-FDA: 77336318682.24.brush55_2d177ee271ba Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin24.hostedemail.com (Postfix) with ESMTP id 0F3251A4A0 for ; Mon, 5 Oct 2020 02:40:41 +0000 (UTC) X-HE-Tag: brush55_2d177ee271ba X-Filterd-Recvd-Size: 3491 Received: from mailgw01.mediatek.com (unknown [210.61.82.183]) by imf44.hostedemail.com (Postfix) with ESMTP for ; Mon, 5 Oct 2020 02:40:40 +0000 (UTC) X-UUID: d754eb346f904c3a86eefd00914a9c3a-20201005 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=pg+khmuG6u6HusnQvdCtS6eE+aWPSmpAjaIW0MNmn6Y=; b=jbdD1eL6kZHasqBkAN8+Rdm7jPyWTvCLqQMFchUPG2wqDT4az4p7z1b2WoREDyq0WDTNnnQqO99+aESrVadtMRaeJX3QwDnFC1PVO8jZKAneeZmSdwTr0YjKoEdoMKhWu26nBa63iuCdrI7/Kc4Jds721bYfAwWeUbFd5GD2SLw=; X-UUID: d754eb346f904c3a86eefd00914a9c3a-20201005 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.14 Build 0819 with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1586985325; Mon, 05 Oct 2020 10:40:36 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 5 Oct 2020 10:40:33 +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; Mon, 5 Oct 2020 10:40:33 +0800 From: Chinwen Chang To: Andrew Morton CC: , , Chinwen Chang Subject: [RESEND, PATCH v4 1/3] mmap locking API: add mmap_lock_is_contended() Date: Mon, 5 Oct 2020 10:40:12 +0800 Message-ID: <1601865614-4918-2-git-send-email-chinwen.chang@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1601865614-4918-1-git-send-email-chinwen.chang@mediatek.com> References: <1601865614-4918-1-git-send-email-chinwen.chang@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-SNTS-SMTP: D30CA0596B5AD6F1FD606A51781A02C96D57DCE086B02B94315380DA50C8B9092000:8 X-MTK: N Content-Transfer-Encoding: base64 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: QWRkIG5ldyBBUEkgdG8gcXVlcnkgaWYgc29tZW9uZSB3YW50cyB0byBhY3F1aXJlIG1tYXBfbG9j aw0KZm9yIHdyaXRlIGF0dGVtcHRzLg0KDQpVc2luZyB0aGlzIGluc3RlYWQgb2YgcndzZW1faXNf Y29udGVuZGVkIG1ha2VzIGl0IG1vcmUgdG9sZXJhbnQNCm9mIGZ1dHVyZSBjaGFuZ2VzIHRvIHRo ZSBsb2NrIHR5cGUuDQoNCkNoYW5nZS1JZDogSWRiMjE0NzhiYjA1ODBiYTcyYjk5MjZhYmEzYmJj NGIxZjc1ZGVlYzINClNpZ25lZC1vZmYtYnk6IENoaW53ZW4gQ2hhbmcgPGNoaW53ZW4uY2hhbmdA bWVkaWF0ZWsuY29tPg0KUmV2aWV3ZWQtYnk6IFN0ZXZlbiBQcmljZSA8c3RldmVuLnByaWNlQGFy bS5jb20+DQpBY2tlZC1ieTogTWljaGVsIExlc3BpbmFzc2UgPHdhbGtlbkBnb29nbGUuY29tPg0K LS0tDQogaW5jbHVkZS9saW51eC9tbWFwX2xvY2suaCB8IDUgKysrKysNCiAxIGZpbGUgY2hhbmdl ZCwgNSBpbnNlcnRpb25zKCspDQoNCmRpZmYgLS1naXQgYS9pbmNsdWRlL2xpbnV4L21tYXBfbG9j ay5oIGIvaW5jbHVkZS9saW51eC9tbWFwX2xvY2suaA0KaW5kZXggMDcwNzY3MS4uMThlN2VhZSAx MDA2NDQNCi0tLSBhL2luY2x1ZGUvbGludXgvbW1hcF9sb2NrLmgNCisrKyBiL2luY2x1ZGUvbGlu dXgvbW1hcF9sb2NrLmgNCkBAIC04Nyw0ICs4Nyw5IEBAIHN0YXRpYyBpbmxpbmUgdm9pZCBtbWFw X2Fzc2VydF93cml0ZV9sb2NrZWQoc3RydWN0IG1tX3N0cnVjdCAqbW0pDQogCVZNX0JVR19PTl9N TSghcndzZW1faXNfbG9ja2VkKCZtbS0+bW1hcF9sb2NrKSwgbW0pOw0KIH0NCiANCitzdGF0aWMg aW5saW5lIGludCBtbWFwX2xvY2tfaXNfY29udGVuZGVkKHN0cnVjdCBtbV9zdHJ1Y3QgKm1tKQ0K K3sNCisJcmV0dXJuIHJ3c2VtX2lzX2NvbnRlbmRlZCgmbW0tPm1tYXBfbG9jayk7DQorfQ0KKw0K ICNlbmRpZiAvKiBfTElOVVhfTU1BUF9MT0NLX0ggKi8NCi0tIA0KMS45LjENCg==