From nobody Tue Oct 7 08:37:44 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 A09A628ECE0; Sat, 12 Jul 2025 19:50:23 +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=1752349823; cv=none; b=jKbPUBsn04BovRELrbJEyalkXI/oFqPcQcsqeNMi2fwPH8LiOavvbBQXx7VkOrDJkwTmPeaLxaEY5lrOWUzC1pCxNekxUp3UtVi4UxER+A0gZEWtpPZG7lMJddVSFaOb4qQVg+0hx/dTCf4TnUjyQPyT3AuQKlYC/i1LkafWGcY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752349823; c=relaxed/simple; bh=zg5wCAX53+Zaz9D4ii0pAZ1fdfy4NlBPdESVNdjo6HE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=rNlblZ41uBGPTOtVNImm2s3oNC40sKq+mw2+vjx41fp/Q1rkBeg8FooymWohsgfGrVyYkZD4nsBN3V4+oKRc2bbx+r+PkMRcP3QiC1birVnkksdExKVaeyyKmJHV0OjgUuGyYbFdSu0YRlfbZS15z93lk3WK2BNDN+LfKfMBNT8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dZhCx5mB; 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="dZhCx5mB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5A2D4C4CEF5; Sat, 12 Jul 2025 19:50:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1752349823; bh=zg5wCAX53+Zaz9D4ii0pAZ1fdfy4NlBPdESVNdjo6HE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dZhCx5mBp1+DmVO9gPRsFOjjrVDd0+M7Ain/KZjwWiIFaBhl1BKhE8j6sB2AtTXxR PexvP3cWaiJTTCJjphxyMs9xoWE/ppkV8kFIGVPzXhxA4u3yc+WcORyNFtvCdlDuEo /bN3XYWiqcOscvlPbfVvtAXJPwfeK10ZeSlFaaY7rNxoZaS5q8RXDvR9WUG1+zlCiK ku925kWoJlzXlxbA/lp10XKYE+knsMG1nEjJQZhTqe3wNPWv3MooACCzisIpaN5zIY Cf6PUwW1mQRP4ixjBYA8P+xCd7toRYAU+L0Xly+rcSmwZIE/rw+znYZANQmk2J96e0 Td15cpGo/q+RQ== 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 03/14] mm/damon/stat: use damon_call() repeat mode instead of damon_callback Date: Sat, 12 Jul 2025 12:50:05 -0700 Message-Id: <20250712195016.151108-4-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" DAMON_STAT uses damon_callback for periodically reading DAMON internal data. Use its alternative, damon_call() repeat mode. Signed-off-by: SeongJae Park --- mm/damon/stat.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/mm/damon/stat.c b/mm/damon/stat.c index b75af871627e..87bcd8866d4b 100644 --- a/mm/damon/stat.c +++ b/mm/damon/stat.c @@ -122,8 +122,9 @@ static void damon_stat_set_idletime_percentiles(struct = damon_ctx *c) kfree(sorted_regions); } =20 -static int damon_stat_after_aggregation(struct damon_ctx *c) +static int damon_stat_damon_call_fn(void *data) { + struct damon_ctx *c =3D data; static unsigned long last_refresh_jiffies; =20 /* avoid unnecessarily frequent stat update */ @@ -182,19 +183,29 @@ static struct damon_ctx *damon_stat_build_ctx(void) damon_add_target(ctx, target); if (damon_set_region_biggest_system_ram_default(target, &start, &end)) goto free_out; - ctx->callback.after_aggregation =3D damon_stat_after_aggregation; return ctx; free_out: damon_destroy_ctx(ctx); return NULL; } =20 +static struct damon_call_control call_control =3D { + .fn =3D damon_stat_damon_call_fn, + .repeat =3D true, +}; + static int damon_stat_start(void) { + int err; + damon_stat_context =3D damon_stat_build_ctx(); if (!damon_stat_context) return -ENOMEM; - return damon_start(&damon_stat_context, 1, true); + err =3D damon_start(&damon_stat_context, 1, true); + if (err) + return err; + call_control.data =3D damon_stat_context; + return damon_call(damon_stat_context, &call_control); } =20 static void damon_stat_stop(void) --=20 2.39.5