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 E34DF22579E; Fri, 10 Jul 2026 13:47:00 +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=1783691222; cv=none; b=p0F+WSCJ+Xno/+rI/xcH2M74OYKYCLdSFsRW58+nySj8ac7VR6EGNsFE2jUr6NfzV0XfMaAqHIhFoZCQPriyR5okOs+R0mKX0a9cpGj4BUs+1i7HZkb2NPUf1Tti4pWb+Qf+csjFwyUr1dMzrT22IMguKz2i6qY+smYJZM1eCSI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783691222; c=relaxed/simple; bh=tviKD854KaVkPYcfxMm1HzZmaZZ3K9VMpjeBsPs7jf4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bMv4aopGuGXiiFufLmA4vWJY9VPR4lkzfKy3RUK4XaC6b6ldTixVZag2Hsn0+ZijDk3TWu5Et1slDO/UCI+9ESOj9K+/75Mn5rhvTTMzrph/jm4swBLrP5u16jVIZx9Y23VfBMra0DP9op8lY7dx3rcIzsngDvmpMZc5mV3Nh+Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=U7USbvXY; 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="U7USbvXY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9F3401F00A3A; Fri, 10 Jul 2026 13:47:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1783691220; bh=YmfZTk/ZQOqnVMZqrheWjYkpxjXzlgMLoos2A38U/W4=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=U7USbvXYMsHXGrpw4rOMNRw5wQyDSuQe5WE+vlNr1rTdxQ0V9e90uVNK7jx8sg350 y0qmnW19lPKSn6zAlicnMAKlHgE+PQ1KJ6xKP8nG7i4IMwMRXaAi3RnBWrGMnDQFhy Oz/NKCZfEq0a6UytK2oa557tZS+o5hNJpmPcqX8KqsMLmbTKAyh2zzNyYxwYAZo7fF l8Magt0XFb+DltxWV9kzyBkRu+sM9nA2JDhPWcKMIE1FkvYVZDP1ufwMjLhcJYOehR Ovysr0Kg0kl3Q60p8z20A2oCFBMQnctX/5VVOxrKeD3l/Yb74x32VZBl7KQdlOHeOP qBAQYGwGJBLZQ== From: SJ Park To: Andrew Morton Cc: SJ Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 01/19] mm/damon/core: introduce damon_probe->weight Date: Fri, 10 Jul 2026 06:46:30 -0700 Message-ID: <20260710134651.18084-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260710134651.18084-1-sj@kernel.org> References: <20260710134651.18084-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add a new field, weight to damon_probe struct. The field is used to specify the degree of the API caller's interest to the data attribute of the probe. Signed-off-by: SJ Park --- include/linux/damon.h | 2 ++ mm/damon/core.c | 3 +++ 2 files changed, 5 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index 63f596957c1f1..d8251c83e6e55 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -760,10 +760,12 @@ struct damon_filter { /** * struct damon_probe - Data region attribute probe. * + * @weight: Relative priority of the attribute for this probe. * @filters: Filters for assessing if a given region is for this probe. * @list: Siblings list. */ struct damon_probe { + unsigned int weight; struct list_head filters; struct list_head list; }; diff --git a/mm/damon/core.c b/mm/damon/core.c index 11473aa1f70f4..327398fa4ee56 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -166,6 +166,7 @@ struct damon_probe *damon_new_probe(void) p = kmalloc_obj(*p); if (!p) return NULL; + p->weight = 0; INIT_LIST_HEAD(&p->filters); INIT_LIST_HEAD(&p->list); return p; @@ -1658,6 +1659,7 @@ static int damon_commit_probes(struct damon_ctx *dst, struct damon_ctx *src) damon_for_each_probe_safe(dst_probe, next, dst) { src_probe = damon_nth_probe(i++, src); if (src_probe) { + dst_probe->weight = src_probe->weight; err = damon_commit_filters(dst_probe, src_probe); if (err) return err; @@ -1674,6 +1676,7 @@ static int damon_commit_probes(struct damon_ctx *dst, struct damon_ctx *src) if (!new_probe) return -ENOMEM; damon_add_probe(dst, new_probe); + new_probe->weight = src_probe->weight; err = damon_commit_filters(new_probe, src_probe); if (err) return err; -- 2.47.3