From nobody Thu Dec 18 13:14:12 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 3802C264614; Thu, 20 Feb 2025 19:35:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740080118; cv=none; b=WZ06MDzNfNprQOOaarF/4PLPpUJDwcrTJ3WJNwXLdiuPTpnw5yqS7HAFkxkM2S790tNiPlhbUcnn+q29bI+qi93bXVin8ZXkDmnpdpGgLPyS0SZVh4nNOJUqyrZ3Akzh8AnV6y1HE+6VyjS51DRseNfsvnM4e40e0p//iJ7D04w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740080118; c=relaxed/simple; bh=2GbFALk/c9BNCc25jRYoGVkk+3jSEEjMYTr49dqSrPM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=SdjqDwJgTP9Kri93nqDLSRXvsIVRS28RwJ7ptRltTp6L/Eij3Q7SS3c3pYD2soa60e6CyVRFvHgwH4gzv50SjUqEvQxqG2NNwLrhOIl2n0FOy5NmrYGmHU0jgVrS6UG26AWqvrhjgChQ/5bclUV1Mf7qntWXur8xxRkK62lj1GU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=G9946da1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="G9946da1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7B1BEC4CEE4; Thu, 20 Feb 2025 19:35:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740080117; bh=2GbFALk/c9BNCc25jRYoGVkk+3jSEEjMYTr49dqSrPM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G9946da1cnNgfEsUSUknhKQ7sBC0WcrZgLi2EGaWpPPeZQl7zaAsOY7m9rrzO9r3R 2rL/pyrK9jJc/Vrw8TBPEBETY5IPECmuJ6TIZ3KyyAp1qMx7Z4IBoMR2tXmv6hhsOV 2UEsVohJNOsUYe03IrDOBI7o0Y0qGAyewwoZCNlru/RobSC8bDnJTcZNZWSiEoeUUQ hkmGRAfGNh/Mjkh2g1+GGRPJn7cN7vZ8m7uRXvL+BjX1p1abgtAnknhAyY37zHJuvv REImn0dECTmcI7Y7TIoUQaV67vTnq8ZO6VSQKpVb7Di5mdZuVjx7zjuWgAF50PdHqm m+BMGnnF7R6BQ== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 3/9] mm/damon/core: support committing ops_filters Date: Thu, 20 Feb 2025 11:35:03 -0800 Message-Id: <20250220193509.36379-4-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250220193509.36379-1-sj@kernel.org> References: <20250220193509.36379-1-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: quoted-printable Content-Type: text/plain; charset="utf-8" DAMON kernel API callers should use damon_commit_ctx() to install DAMON parameters including DAMOS filters. But damos_commit_ops_filters(), which is called by damon_commit_ctx() for filters installing, is not supporting committing damos->ops_filters. Do the parameters committing so that DAMON kernel API callers can use damos->ops_filters. Signed-off-by: SeongJae Park --- mm/damon/core.c | 40 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) diff --git a/mm/damon/core.c b/mm/damon/core.c index bcb7e42098dc..ffdd84ff6fa5 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -793,7 +793,7 @@ static void damos_commit_filter( damos_commit_filter_arg(dst, src); } =20 -static int damos_commit_filters(struct damos *dst, struct damos *src) +static int damos_commit_core_filters(struct damos *dst, struct damos *src) { struct damos_filter *dst_filter, *next, *src_filter, *new_filter; int i =3D 0, j =3D 0; @@ -821,6 +821,44 @@ static int damos_commit_filters(struct damos *dst, str= uct damos *src) return 0; } =20 +static int damos_commit_ops_filters(struct damos *dst, struct damos *src) +{ + struct damos_filter *dst_filter, *next, *src_filter, *new_filter; + int i =3D 0, j =3D 0; + + damos_for_each_ops_filter_safe(dst_filter, next, dst) { + src_filter =3D damos_nth_filter(i++, src); + if (src_filter) + damos_commit_filter(dst_filter, src_filter); + else + damos_destroy_filter(dst_filter); + } + + damos_for_each_ops_filter_safe(src_filter, next, src) { + if (j++ < i) + continue; + + new_filter =3D damos_new_filter( + src_filter->type, src_filter->matching, + src_filter->allow); + if (!new_filter) + return -ENOMEM; + damos_commit_filter_arg(new_filter, src_filter); + damos_add_filter(dst, new_filter); + } + return 0; +} + +static int damos_commit_filters(struct damos *dst, struct damos *src) +{ + int err; + + err =3D damos_commit_core_filters(dst, src); + if (err) + return err; + return damos_commit_ops_filters(dst, src); +} + static struct damos *damon_nth_scheme(int n, struct damon_ctx *ctx) { struct damos *s; --=20 2.39.5