From nobody Wed Feb 11 04:01:05 2026 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 0DE9E22DA1B; Thu, 29 May 2025 15:21:20 +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=1748532080; cv=none; b=qL1saXnZX7Z/x7ZtpTpptZNFACfsNcsZsrP9GMNZbJDm3TVgfCLJoxWpl6bw5G7Dw2ahPiDmWEgJpwVFkOMYE1JDgyth+RVr1Pn8reolMnYG08tbu8D3204MC4fSnrGem2l+yxZuE/JcxEKxOtT1AqQM8K01Y6m+5YUqEUqeJ2w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748532080; c=relaxed/simple; bh=RlWXgxm38Aq29CBqdh8MUpS/8kHUwdh5uqxg8ACpYpI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=iabeIQEDxOXhs5cWPo1+ZjKIoP/kSnrhKfAq/3QPkimFSbABk4CwmWEDmdQC54z3u7T24ODkWtFcDO5JxFpCJUSMJpC3SkeJyGi80tBimOQsbcunM1tH8oDWRjmYUTWzIxD1V7TdhYxMj7VyNjnLxXguswhuLiJtouIiow4jwEI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=O+9N8cB+; 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="O+9N8cB+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1F284C4CEE7; Thu, 29 May 2025 15:21:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748532079; bh=RlWXgxm38Aq29CBqdh8MUpS/8kHUwdh5uqxg8ACpYpI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=O+9N8cB+GwpoqfvPiHGKa90TiTPoMCVbpSLT7KFPtXKlgIPg1rVh03lTjuc4+BYkA TJqwQpmW0uqKhP/YAIKlWWzF4hWKgyh+9ylWdxxxDqTOuD71peN42inzqIky70vYeD MC4BVmbOu1oNLAM7NdiOTrXIYIkAEum7DW2i7STNHFidxVwfm6mAuDf/Dr1p3PEDHi sKpiX6qE3HHbm5VnTUAJ8eS36vV0WL2/+G7JenWbacVRPhSINCLSG5x9EP+EaLbctI WKs6zL9DzIr6L7d9+G/4gMN+wB2kf7yWNP2pg9qHIkfUeKZ4dgxp4l3fjz3NfSkw5M JmGCcPIaCLEUw== From: Jeff Layton Date: Thu, 29 May 2025 11:20:39 -0400 Subject: [PATCH v12 03/10] ref_tracker: add a top level debugfs directory for ref_tracker Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250529-reftrack-dbgfs-v12-3-11b93c0c0b6e@kernel.org> References: <20250529-reftrack-dbgfs-v12-0-11b93c0c0b6e@kernel.org> In-Reply-To: <20250529-reftrack-dbgfs-v12-0-11b93c0c0b6e@kernel.org> To: Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin Cc: Kuniyuki Iwashima , Qasim Ijaz , Nathan Chancellor , Andrew Lunn , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, Jeff Layton X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1030; i=jlayton@kernel.org; h=from:subject:message-id; bh=RlWXgxm38Aq29CBqdh8MUpS/8kHUwdh5uqxg8ACpYpI=; b=owEBbQKS/ZANAwAKAQAOaEEZVoIVAcsmYgBoOHtl1UPDVJTvPvJNRc98rtdX0aJUeTHv9FEu0 Ma0CvYIM+mJAjMEAAEKAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCaDh7ZQAKCRAADmhBGVaC FSU5EACD3kw01IXG9X38wceHpPcVWw0grbOSu3GeJo+/T0YgHoFNyUvQ8qpkeNzxzlLgL3oLG0e Jhr+xQXngdKI1kdPGHFIzkTyfv8YMRivcMddsIaq6atTsonLPH1Bv95G8RMC8JJOElxyX2wAcND n2gb/0ooYNI1NuAh2XRw68KsvcF5J2Fv4yJkqoy+c1iemfDLf/C3oyl8WxuFmKzXkwRTGs7xW9P NYpOvf4DGWjj0J5iewO0fH75PD0QQeAhqQAnXLJkrakNhFvU/aWGng7tgNJCbGX7glsygZ7wUBg nXhexqtdpL6p3Rpy9nadviXOX+Y7pjW59Ys+DkS2iawi02V/Xf3iYXRfyPdCQjBRBS9zdw/Fk/p qp89wtBNIAdAuvbNgqsG1bHJXkpUDE15eTp1lWJO3/2WVw5SCLAJYrLjw5vUnTI67hgDCN1e1kE ds3oM0+9K1PaftZRS9IfnfraUWpfYJTB1kxVsUTZW69w/kMvhVw+GoPtx56esDrly/gx9Ia+xQJ 6llOxwBhAnWnhrkmTyyM8FZMI7K8qU7L+m9z3EyrE6m3iHMTU5bUK8kORA81439KrQaUepzBM60 wieDuaGS+fYwgfnn3NGD0gvxANZAr0KDm2+ggdFI/TjRrGBOqFEhOG3yLVnNo/Wzb9TxGeSXyx+ MkZQKh8/mr3MasQ== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 Add a new "ref_tracker" directory in debugfs. Each individual refcount tracker can register files under there to display info about currently-held references. Reviewed-by: Andrew Lunn Signed-off-by: Jeff Layton Reviewed-by: Krzysztof Karas --- lib/ref_tracker.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/lib/ref_tracker.c b/lib/ref_tracker.c index de71439e12a3bab6456910986fa611dfbdd97980..d374e5273e1497cac0d70c02c28= 2baa2c3ab63fe 100644 --- a/lib/ref_tracker.c +++ b/lib/ref_tracker.c @@ -273,3 +273,16 @@ int ref_tracker_free(struct ref_tracker_dir *dir, return 0; } EXPORT_SYMBOL_GPL(ref_tracker_free); + +#ifdef CONFIG_DEBUG_FS +#include + +static struct dentry *ref_tracker_debug_dir =3D (struct dentry *)-ENOENT; + +static int __init ref_tracker_debugfs_init(void) +{ + ref_tracker_debug_dir =3D debugfs_create_dir("ref_tracker", NULL); + return 0; +} +late_initcall(ref_tracker_debugfs_init); +#endif /* CONFIG_DEBUG_FS */ --=20 2.49.0