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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 20260F532C1 for ; Tue, 24 Mar 2026 00:15:09 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 876AA6B00AB; Mon, 23 Mar 2026 20:15:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 84E456B00AE; Mon, 23 Mar 2026 20:15:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 78B726B00B0; Mon, 23 Mar 2026 20:15:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 6807A6B00AB for ; Mon, 23 Mar 2026 20:15:08 -0400 (EDT) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay07.hostedemail.com (Postfix) with ESMTP id 12F6F160E64 for ; Tue, 24 Mar 2026 00:15:08 +0000 (UTC) X-FDA: 84579036696.12.89426C6 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf25.hostedemail.com (Postfix) with ESMTP id 41C38A000B for ; Tue, 24 Mar 2026 00:15:06 +0000 (UTC) Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=sFN5xPhV; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf25.hostedemail.com: domain of sj@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=sj@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1774311306; a=rsa-sha256; cv=none; b=iy5txfLo2lTEKHzeGmCuu9CPB1lIN9IkmxCIFCN2byyetT8gJQltt5fDKDZJaStISh5PwF DrKg8qip8oWFBdJUgY04wc9sQGyw+BjMLxuovXQRWhmIaxIgOUu2/HDCBZ4Yo8PRLHRGSz QXhm7wot3BRq0Zi5f8R/NfFkkWaVlIg= ARC-Authentication-Results: i=1; imf25.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=sFN5xPhV; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf25.hostedemail.com: domain of sj@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=sj@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1774311306; 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:dkim-signature; bh=bfszvMF3hdftnyukf42jIlC33hVDq/u5fFC0mHPEiac=; b=yT3fAbGK0LxRVzKs9w/RXTHtL5Isw+NHkGbnov0UdXsb1G4gXfvZXKNYxwjNCIRcQsTelA gRb5wBrqwWyx8pnODa1tvmVBy/bocajbvSlUVon1Lb0h++pviPM0Ys9J8S37WoN3enBnf3 om+ahq4aRJc0ewt+Js23+MhxDaHIrR0= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 36D85440B9; Tue, 24 Mar 2026 00:15:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E209FC4CEF7; Tue, 24 Mar 2026 00:15:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774311305; bh=bL5TsY3mZar75uq4cPHULH9KGrxQsAUm5BHcGvhJ0RM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sFN5xPhVG4dpXaXm5iu5UF1N4xq5C6EUOpBzXqlbHMjbHJ7lNxLvm9Mf4aInb2HYd 68LkohmqQ3deRRVz1JGYGW691klI6MwF4FD+8QBUB1yDoMxiOSt2nw1K+HhzTIMe4M 2YeywJbauLPzC0pEDfScmvpDf7r3LAovvuP3CqMivbvxcCVyuwB4Viz/2JPoQiMVNq j86hxvcDO8Mhd9DsJ8Vq75y8hnpYQofWtDcZywr/YlNCUMJ1zGg5ZPVpRKylqBWko4 V1BYUIc/u+8nP3FxhJVwIa3y/ZuXLG/aS23uwkJsZVNh5K85kknu3XECPuveZWK8OS Bdu30t26WKk8A== From: SeongJae Park To: Josh Law Cc: SeongJae Park , Markus Elfring , damon@lists.linux.dev, linux-mm@kvack.org, Andrew Morton , linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [v3 1/3] mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure Date: Mon, 23 Mar 2026 17:14:59 -0700 Message-ID: <20260324001500.86247-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <0E185D9C-311B-47C5-AF28-06F8D1235926@objecting.org> References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: 87atqrfwdp3q14dot4156hwdf8szm4c4 X-Rspamd-Queue-Id: 41C38A000B X-Rspam-User: X-Rspamd-Server: rspam03 X-HE-Tag: 1774311306-445551 X-HE-Meta: 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 euL6+8GM Y2vHdiqQ1cCMVjI7fkXzmVWJ83HJkRI5/y+p+CHLnfskTG+Am9AXL+44Z2qpfdL8VA8RW6+oVgl9ph0O38DXmE5qXQURLmJ0zutuM3GVFrQpTDW/C9IIExq22MnfmZ/fOfINLYNznlY8byhYPq6XNjJz2cP+9tRLZ0WJ/Aq366VTajojrAU/3rwBTo9pwnn8i8LcYyWjBzgV9Gt492qOSVMQWFyotSPzr6fBiGpZ4J0vZc/EXrIuePWuupBgQ43WF2GIBf/7PbaQ7vQiz1G4aS9hpMmy3O5TJIG+O/ziWiGRrqQq1tQ2F2Zdezerq5EpGNSFntAtl4Wz1oWZS2GzEtJ0UNcrbb9rwKATEhwa5zCBJ/TKCjymX2T70NqGloOheNp/+pWc0ecH7JqsX71hqajh3CUMFqcjgA5W1 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, 23 Mar 2026 16:48:19 +0000 Josh Law wrote: [...] > Also, unconnected to our topic! > > > I've tried to backport Damon to 4.19 (for a personal android thing, and failed! Of course) > > Can I have a bit of help if that's fine with you? The tree is based on GitHub a bit Sure, I will be happy to help as much as I can without burning myself ;) Seems [1] Alma Linux has backported DAMON on their 4.18 kernel. Maybe you can try their port first? Also, what is the oldest kernel that you have to use? As newer it is, the backporting will be easier. When I was in AWS, I backported DAMON of v6.7 on the v5.10 based Amazon Linux kernel, and the source is available on GitHub. So if you can use 5.10 based kernel, using that could also be a good option. [1] https://oracle.github.io/kconfigs/?config=UTS_RELEASE&config=DAMON Thanks, SJ [...]