From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E084536A01A; Thu, 21 May 2026 03:54:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779335642; cv=none; b=puo/jxUKMYlVkdpf8E3AC+vNhkb+MMvdlJRNpR1vdgE78Op2CInI3bwyWE5jaYdJhJ4mSzwhcVZw/EpETLnXw4vAbgib0KEP9dgkCOmrVWj6enqPuCbzbJqJJYzGGkvIUp5Sg+CRicYMDLL/IhUu1RjBI8dSxaXfQm2V2Hv0ToM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779335642; c=relaxed/simple; bh=HU4D50xUEXGTjEy1hYAKL14nhun18f8ZSclPBfAPuZs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=P5fRgqR2jysffb79DJV/i4MhXNlpK8q5Koo3GwFf5IPS0n/EjxQYUQBP/X0GIEFWiwjOwGvl2a6Mpo/hvMvlgm2fwt54ty+HwHnHSKpeqh+9HL6ah2WwNZb92hT8098XhEClFRi9bAc+BZCIm0XKWil8y/qotZPdzrWNJSpIqjQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dlwjjmAN; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dlwjjmAN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1E561F00A3B; Thu, 21 May 2026 03:54:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779335640; bh=CRNoWJlEPylYeAv7EKMrmhsVza1n4tj76p/bqvx4fJA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=dlwjjmAN5exUXxKzSr7aztzw1rqe/edAluNaa+H+ezpC15TEu0GqGdqUy8XYKqgdP PZUYAzbZDo7IdEabFTcFJyZJUbMKynuFtEsMOAnPn1Q1qqiggl8cVHjYYZlserVIyK OZRkOKRbDTAarYHDj7f5HANnhoigVurCbNnMSVB68inIcJmFNiykQ50AedJFDPTKBX 3v7amtV5PxRbKqS7AJrVF/pRDr9GA3z/X5indIio/MQ10oqWYACopnjaflhWau2ctR ZkS4sZ44xiL0P2t//jcELeaDmjsB7o3n0FWfJA1+BSnEfkYnMTGV5ht8dj7/3AQiWA lslVsudX3oU8Q== From: SeongJae Park To: Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.1 03/14] samples/damon/mtier: replace damon_add_region() with damon_set_regions() Date: Wed, 20 May 2026 20:53:37 -0700 Message-ID: <20260521035349.87565-4-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260521035349.87565-1-sj@kernel.org> References: <20260521035349.87565-1-sj@kernel.org> Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit mtier DAMON sample module and DAMON virtual address operation set (vaddr) unit tests are using damon_add_region() for setup of DAMON monitoring target region boundaries setup. But, damon_set_regions() is designed for exactly the purpose. All other DAMON API callers use the function for the purpose. Replace damon_add_region() usage in mtier sample module with damon_set_regions(), for unifying the use case and reducing the maintenance cost. Signed-off-by: SeongJae Park --- samples/damon/mtier.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c index 775838a23d935..eb1143de8df17 100644 --- a/samples/damon/mtier.c +++ b/samples/damon/mtier.c @@ -75,11 +75,11 @@ static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote) struct damon_ctx *ctx; struct damon_attrs attrs; struct damon_target *target; - struct damon_region *region; struct damos *scheme; struct damos_quota_goal *quota_goal; struct damos_filter *filter; struct region_range addr; + struct damon_addr_range range; int ret; ctx = damon_new_ctx(); @@ -120,10 +120,12 @@ static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote) addr.end = promote ? node1_end_addr : node0_end_addr; } - region = damon_new_region(addr.start, addr.end); - if (!region) + range.start = addr.start; + range.end = addr.end; + + ret = damon_set_regions(target, &range, 1, DAMON_MIN_REGION_SZ); + if (ret) goto free_out; - damon_add_region(region, target); scheme = damon_new_scheme( /* access pattern */ -- 2.47.3