From nobody Tue Oct 7 22:44:35 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 9D2202BE056; Sun, 6 Jul 2025 20:00:32 +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=1751832032; cv=none; b=pO2otmobVfO8mdl29Sga55cx+t8S5EEtXSxCGJmdIApOFdo71N99szsrHgBKiTAocQnwH/xIh3c9AXKbVPU+Hsc1PEQgaK9BGANWC4g6fa+HsfkY0A+Rgw5HBkXpMJqYeHkNhwjUJxrv6Sb0+rL6qj4yed1lUnv7JMd0L3CZGH4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751832032; c=relaxed/simple; bh=qgCCHgMjBSqd296NRY6BPJU6GpcbgCIFTrT62DjsH+o=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=MxYG50+8UU65p2C/bel/G+Nc4Lj8rpqd5DBRmpWbUbkHumSF0PDJDSbwa1z5VJUl9rEfGfHaWL0sltVsZDbUtahoZPUnorNzC1nrLv6bzHLuE7Qesqwb+aCL/TGPIcfdtuDsWLxDbkDISwYqpbMsTPqyio/cN8SSdsMlP7+lGik= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=H8WmWqp5; 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="H8WmWqp5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A50DC4CEF2; Sun, 6 Jul 2025 20:00:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1751832032; bh=qgCCHgMjBSqd296NRY6BPJU6GpcbgCIFTrT62DjsH+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H8WmWqp5pOIN39aMPaQGFH+p5aZKw8AS/c6J3FPzO732FLWrX8np8QOplYlf99KmU iEHgPMCPLCFVQU5dkRKVNXmX5pVqGuQDgJQWE+9HNSfjA5K/5crGndLV4wspg2YJoU tVWAg5+0sCauY+ilkIvLzlVtDeKQLQLB0n48QpCVmJ8HqHGo/HNIZrPzDiwmm1EbWa LUYDAECjiJEoz5wW0N+N3DIx+Qcy4hSiLLjHjKgSUxvbdCmbMVdi4j75KITa2tIobL fJt1nuTboznH6bRjz9UYPMG4qyG84DSi/uZXkeKX9Hdv6WnTywHmOFsnYySygOJF+U ceUktNuq9G4rA== 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 07/14] samples/damon/wsse: use damon_call() repeat mode instead of damon_callback Date: Sun, 6 Jul 2025 13:00:11 -0700 Message-Id: <20250706200018.42704-8-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" wsse uses damon_callback for periodically reading DAMON internal data. Use its alternative, damon_call() repeat mode. Signed-off-by: SeongJae Park --- samples/damon/wsse.c | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/samples/damon/wsse.c b/samples/damon/wsse.c index 6037e5f8adf2..fb24190d2fc0 100644 --- a/samples/damon/wsse.c +++ b/samples/damon/wsse.c @@ -35,8 +35,9 @@ MODULE_PARM_DESC(enable, "Enable or disable DAMON_SAMPLE_= WSSE"); static struct damon_ctx *ctx; static struct pid *target_pidp; =20 -static int damon_sample_wsse_after_aggregate(struct damon_ctx *c) +static int damon_sample_wsse_repeat_call_fn(void *data) { + struct damon_ctx *c =3D data; struct damon_target *t; =20 damon_for_each_target(t, c) { @@ -52,9 +53,15 @@ static int damon_sample_wsse_after_aggregate(struct damo= n_ctx *c) return 0; } =20 +static struct damon_call_control repeat_call_control =3D { + .fn =3D damon_sample_wsse_repeat_call_fn, + .repeat =3D true, +}; + static int damon_sample_wsse_start(void) { struct damon_target *target; + int err; =20 pr_info("start\n"); =20 @@ -79,8 +86,11 @@ static int damon_sample_wsse_start(void) } target->pid =3D target_pidp; =20 - ctx->callback.after_aggregation =3D damon_sample_wsse_after_aggregate; - 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_wsse_stop(void) --=20 2.39.5