From patchwork Sun Nov 19 16:57:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandru Elisei X-Patchwork-Id: 13460558 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 C22F5C54E76 for ; Sun, 19 Nov 2023 17:00:04 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 54B106B03A8; Sun, 19 Nov 2023 12:00:04 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 4FA336B03B0; Sun, 19 Nov 2023 12:00:04 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 3C3B96B03B1; Sun, 19 Nov 2023 12:00:04 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id 2723C6B03A8 for ; Sun, 19 Nov 2023 12:00:04 -0500 (EST) Received: from smtpin13.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id F1EAAA01D7 for ; Sun, 19 Nov 2023 17:00:03 +0000 (UTC) X-FDA: 81475316286.13.B559620 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by imf17.hostedemail.com (Postfix) with ESMTP id 5081840028 for ; Sun, 19 Nov 2023 17:00:02 +0000 (UTC) Authentication-Results: imf17.hostedemail.com; dkim=none; spf=pass (imf17.hostedemail.com: domain of alexandru.elisei@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=alexandru.elisei@arm.com; dmarc=pass (policy=none) header.from=arm.com ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1700413202; 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=V30no8RFLwAyQ9qLWlxD+PgQr+CZ83XsB77hErsgT5M=; b=D9F2TIhPgj+wDMCbIp1x5yA1q/s3pbKyo+4bdHyKncM58uUqVXETGu9LtX3qp+f5OMdLU4 1+f6NWqEU1I4AD0Mwi5HuBcd++Wgi+Edb+I4/odptF1VoaKSgHFvMxm7Uzq+d1p4v658oH XD4B9HUTPKMMPP5aTW2eN4jzZAAphoo= ARC-Authentication-Results: i=1; imf17.hostedemail.com; dkim=none; spf=pass (imf17.hostedemail.com: domain of alexandru.elisei@arm.com designates 217.140.110.172 as permitted sender) smtp.mailfrom=alexandru.elisei@arm.com; dmarc=pass (policy=none) header.from=arm.com ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1700413202; a=rsa-sha256; cv=none; b=6FopvjG76kWRQJcy+yKDrKlp/fSrS8A195isM1CQresC0id/oovGHwbrc2zXV6vIMGR025 C/Er/c8cF/f7CwMpm6lwNP3z5M+i/u2JKuciU5TIMGji2sT+0xmNMmPfcQV/SQ+gXMabYz deZH//Gq+tPyoCu0uGGnc1IbYifqVIc= Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C6B171476; Sun, 19 Nov 2023 09:00:47 -0800 (PST) Received: from e121798.cable.virginm.net (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9BFC23F6C4; Sun, 19 Nov 2023 08:59:56 -0800 (PST) From: Alexandru Elisei To: catalin.marinas@arm.com, will@kernel.org, oliver.upton@linux.dev, maz@kernel.org, james.morse@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, arnd@arndb.de, akpm@linux-foundation.org, mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, mhiramat@kernel.org, rppt@kernel.org, hughd@google.com Cc: pcc@google.com, steven.price@arm.com, anshuman.khandual@arm.com, vincenzo.frascino@arm.com, david@redhat.com, eugenis@google.com, kcc@google.com, hyesoo.yu@samsung.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, linux-fsdevel@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH RFC v2 27/27] arm64: mte: Enable dynamic tag storage reuse Date: Sun, 19 Nov 2023 16:57:21 +0000 Message-Id: <20231119165721.9849-28-alexandru.elisei@arm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231119165721.9849-1-alexandru.elisei@arm.com> References: <20231119165721.9849-1-alexandru.elisei@arm.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: 5081840028 X-Rspam-User: X-Stat-Signature: qy4kdymp1h3ypkzth3eghgpsi748w7mn X-Rspamd-Server: rspam01 X-HE-Tag: 1700413202-224000 X-HE-Meta: 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 JNsvaJlN tF7uPRJ6NVHknb5v1wg6uAJJPOQTK65yAs38ytznThxzbrAs0zhJZvPhLAANh3IRaSdDHYt8VwDjZ3hvNRDXOt8bP/dvROHvB+X7Qv4DGk+PHBxAqDFLTcdYboLv06zIt4bH/CfeJ+JaEv21ewwxLs3J0VXKxIj0ciY7j 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: List-Subscribe: List-Unsubscribe: Everything is in place, enable tag storage management. Signed-off-by: Alexandru Elisei --- arch/arm64/kernel/mte_tag_storage.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/kernel/mte_tag_storage.c b/arch/arm64/kernel/mte_tag_storage.c index 11961587382d..9f60e952a814 100644 --- a/arch/arm64/kernel/mte_tag_storage.c +++ b/arch/arm64/kernel/mte_tag_storage.c @@ -395,6 +395,9 @@ static int __init mte_tag_storage_activate_regions(void) reserve_tag_storage(ZERO_PAGE(0), 0, GFP_HIGHUSER_MOVABLE); + static_branch_enable(&tag_storage_enabled_key); + pr_info("MTE tag storage region management enabled"); + return 0; out_disabled: