From nobody Tue Oct 7 22:36:00 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 B4B6B2BE03F; Sun, 6 Jul 2025 20:00:31 +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=1751832031; cv=none; b=SUGpYWrvluh81GjISxZZvPSj4nt3j0r7ts9KWXCbw8LpN9UBjflY49jBRzAxamyVVaMg2YYe9TXUHksZtPn8pYhM6KTCsBwKjdA7DBtqX4M9wEtdyjA+JJJindU3yoeM7UVLjtNTTzborNbzd/U/t6asPnMnbP3sICPD3PFf6gA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751832031; c=relaxed/simple; bh=4rlUnM41KWHBb9R2GQY7K2cpSu4qxxjH6BI9hmtiRvY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=E+3bl7rT8YE13FNnDsOmPlflhrM5ev/C5xc6uCPWAU7GKQILEsn6wCAaJHGCoij0Pseqp7h+dRXPNJcIo32Ha21ihPcyLfDHLnoSkS3ihL1XLC6QgaG9rOL4IAPzM2dBpfBfcXvWNnQcL6l7VLDbuGs1boXPbp7f7Qu4C0X2jZw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Hu3ELqqO; 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="Hu3ELqqO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E16CC4CEF4; Sun, 6 Jul 2025 20:00:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751832031; bh=4rlUnM41KWHBb9R2GQY7K2cpSu4qxxjH6BI9hmtiRvY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Hu3ELqqOgQHEt+keoQhLPdyX8rut4DuHulVn/8mGyUWEU/HoEV6x7HOW6LB+FYDxV 5mBnMfXjCCSZvmMuV46mqNk836kS5ydl+Gm9Q/V6JwwrqTVZxa22zKsnQaoGo/Wi/W H1uGWeVHQL9LQUONWb8bQoLI3KwTW/qfwaV2RMQ45ZdeTQ2v+CmihTF1JJsAMlyBXx mWz0h35MWeAD7m6knzzPSJWx6J0VvPwy8TR7lH0JBgPwawURzjjeNkl9efYwGnM4aU +aX8gaCSCNOP2RQgVjjXYj53/6Z1U+euVEuQstT3bMIOy1d/fCpkBqMhTw3dNHsC3X lQbxy0NE8l+Qw== 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 06/14] samples/damon/prcl: use damon_call() repeat mode instead of damon_callback Date: Sun, 6 Jul 2025 13:00:10 -0700 Message-Id: <20250706200018.42704-7-sj@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250706200018.42704-1-sj@kernel.org> References: <20250706200018.42704-1-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 d70f47924720..d3215699a5f4 100644 --- a/samples/damon/prcl.c +++ b/samples/damon/prcl.c @@ -34,8 +34,9 @@ MODULE_PARM_DESC(enable, "Enable of disable DAMON_SAMPLE_= WSSE"); 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