From nobody Tue Oct 7 08:31:23 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 DB3FD292933; Sat, 12 Jul 2025 19:50:27 +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=1752349828; cv=none; b=D/w7SUsacKv+0QEqC/zyQv4dbQb59Z+Ge0sCWeuGWpHQkOLlMDrM8Y5HzcfWVt2cPaPVnYWLQM6Eqsf/35BkLAJaO2OlzRNTIhxEIOg0u/gXTigPHSVZU5WygylBc81shjFV2TjrjyiiON06Ax83V5+nlgot+T0CloC13FEbDw0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752349828; c=relaxed/simple; bh=OcwCWpW+gdDxIZHIlmwdIcrtDzrp/aZZNpUe+KYMNyw=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mZh6SMaMFOSmZgqTz+zYJsTZFynljBNN+myIxBaqnDd1owGQP0Z5SyMWoGywUYfOqmUOBOU6YFvAQrxIkFzZlfTZTzwQdU1tyHpWTe9KF2Ch583eR7ebuvljpsz3PC42U8jZCDrsJnkwIOrgMsDNFGsmpFSSoMcr0Jun4eD0tK8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=uoHT9o7n; 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="uoHT9o7n" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9420EC4CEF7; Sat, 12 Jul 2025 19:50:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752349827; bh=OcwCWpW+gdDxIZHIlmwdIcrtDzrp/aZZNpUe+KYMNyw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=uoHT9o7neTDGCfTetH92f6SPSSQQ4gZ83vz4dRrQm7cPm00O2608YsjoNdxSCb1tw lekOjYFQQngnDAaSVPYl8R4ZeTmp7RA46ZFwRfACQsQJgrLIoP2hkr/89WpQ4CM2pb XdwFWc1rtMQpAFNM9KRCD0R1mKyxndDzJO1iA5GPx/LKho6AIM7PHhJVNOyOeT5a+t YLKnKUZc4PbERRpJ+tKccu9JEzhBvLHkQ/CyG8U1seatzpVS/NvmbxnzpRUZ4rLpzw ygbhVTty2PtzYFabUfFcCQLFlIoWXpJUi4IMTHb5IoYlKEgTBcyT9cp09wa51600UB d4GOFX4fSjuHA== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, kernel-team@meta.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 06/14] samples/damon/prcl: use damon_call() repeat mode instead of damon_callback Date: Sat, 12 Jul 2025 12:50:08 -0700 Message-Id: <20250712195016.151108-7-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250712195016.151108-1-sj@kernel.org> References: <20250712195016.151108-1-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" prcl uses damon_callback for periodically reading DAMON internal data. Use its alternative, damon_call() repeat mode. Signed-off-by: SeongJae Park --- samples/damon/prcl.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/samples/damon/prcl.c b/samples/damon/prcl.c index 8a312dba7691..25a751a67b2d 100644 --- a/samples/damon/prcl.c +++ b/samples/damon/prcl.c @@ -34,8 +34,9 @@ MODULE_PARM_DESC(enabled, "Enable or disable DAMON_SAMPLE= _PRCL"); static struct damon_ctx *ctx; static struct pid *target_pidp; =20 -static int damon_sample_prcl_after_aggregate(struct damon_ctx *c) +static int damon_sample_prcl_repeat_call_fn(void *data) { + struct damon_ctx *c =3D data; struct damon_target *t; =20 damon_for_each_target(t, c) { @@ -51,10 +52,16 @@ static int damon_sample_prcl_after_aggregate(struct dam= on_ctx *c) return 0; } =20 +static struct damon_call_control repeat_call_control =3D { + .fn =3D damon_sample_prcl_repeat_call_fn, + .repeat =3D true, +}; + static int damon_sample_prcl_start(void) { struct damon_target *target; struct damos *scheme; + int err; =20 pr_info("start\n"); =20 @@ -79,8 +86,6 @@ static int damon_sample_prcl_start(void) } target->pid =3D target_pidp; =20 - ctx->callback.after_aggregation =3D damon_sample_prcl_after_aggregate; - scheme =3D damon_new_scheme( &(struct damos_access_pattern) { .min_sz_region =3D PAGE_SIZE, @@ -100,7 +105,12 @@ static int damon_sample_prcl_start(void) } damon_set_schemes(ctx, &scheme, 1); =20 - return damon_start(&ctx, 1, true); + err =3D damon_start(&ctx, 1, true); + if (err) + return err; + + repeat_call_control.data =3D ctx; + return damon_call(ctx, &repeat_call_control); } =20 static void damon_sample_prcl_stop(void) --=20 2.39.5