From mboxrd@z Thu Jan 1 00:00:00 1970 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 2B814288C26; Wed, 28 May 2025 14:34:54 +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=1748442895; cv=none; b=uxtTkaFtIv+Re/gcWcbn0V+pFim6hNR4orTJxW9W9uQOXLith8b9dy8N88tSf8Ju1UQcyrru8d23f5Uf7Dj8rWBbfrmgNigv0FEiBLrAyeAW43oPhA7mGUS7zHGgXCCZpJ7zBYlIhOrw00Ab1DT7LfzsvwuHmYNpAC2mHhP+i8k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748442895; c=relaxed/simple; bh=LxLVRB8GvDbWgwRUBMxy60vYqqNKxSuBn+6jZzlFCL8=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=EG3kqNr2Y/Ihlsi0XqusrKZkv+dssaLgy8cK0Z50UBq8sjW+Fdo7pSeubi0JvMHNFgU1Odkms2TGK+oWF1ktj3X+gs5OrZsQFcDtj5gjBQ3AuEd/8hbk6NiofZPYNl3e0q4gegLAwjQ0RuutVbtkzLWSP+NHxHYTuAW3Uv3uTO8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=YemqRJbL; 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="YemqRJbL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1CA4C4CEF6; Wed, 28 May 2025 14:34:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748442894; bh=LxLVRB8GvDbWgwRUBMxy60vYqqNKxSuBn+6jZzlFCL8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=YemqRJbLG4RaBxL/301sTdPNenZhSt2Mog5tm1ymhn1tTsbRq7gjonaBcQQszsVsT tTYFCKzifPMCZ8KXfhvxx9DK0N8DdBlx55Ta+lt6REedUjVpAGLhrXiDfNI6RupUTZ 3wJ5zeI2B0hkLWijamgn2wlrirEYCIUE5lR8/1C3dNMhzBqVKOGeajiVyBCheVH4ZW UE/LT2SeB1+oK/NP2WjiI0P7QMW+43Rj+8sNaztmmRWLxjwsJUxeZpUx8YtgySP3Ml kvo8pDSuYm4pOv15JAIJRLbWMVEYMSSKjZhG7g0rUZ6TOfQuJpr5TFLkJaGHxgC1QN K4JODSwTiI8bQ== From: Jeff Layton Date: Wed, 28 May 2025 10:34:35 -0400 Subject: [PATCH v11 03/10] ref_tracker: add a top level debugfs directory for ref_tracker Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250528-reftrack-dbgfs-v11-3-94ae0b165841@kernel.org> References: <20250528-reftrack-dbgfs-v11-0-94ae0b165841@kernel.org> In-Reply-To: <20250528-reftrack-dbgfs-v11-0-94ae0b165841@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=1182; i=jlayton@kernel.org; h=from:subject:message-id; bh=LxLVRB8GvDbWgwRUBMxy60vYqqNKxSuBn+6jZzlFCL8=; b=owEBbQKS/ZANAwAKAQAOaEEZVoIVAcsmYgBoNx8EIvxwwvu2Rez69XJFIEm8ehsmoMNYZvgu+ go5k0V3q4yJAjMEAAEKAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCaDcfBAAKCRAADmhBGVaC FaO+EADEIFnvTcw6Nwx3C27bRQvHJHCMfcvXKPs5gkHanmnl7cFOF7k/qJJuuY+z2gKwAtMadU2 S4zlTlXXF7kwaphIWiJIPc6R8oeCjisEOd4/ge1e2j38lmPdBPcxggMXuIhQkO7nDG7tF9ZW/F2 KRPZk4a5jrcUYYErdmn0YXeuoPCrw+1Uf6LMjtI/VeUIQx/eQAurDBLDdM+9ClNHtoLKsz/M3gK b1t8RtoyUyCqlkOMl8/rHLlcGvwKh8iN8BsJlYztPGBEe4kml4vcPczfWtWXP4x9IQ0mGKLpQh+ E6WFCmgIyEzyk3TWxvL5coz6cDPRT3+Ap91KGDGlsPR4KrOAJlCEvxsbFUZvlJgZt2L3uUcZC6J SV0qXv07AiDo8vbBj4S94UjMGhsLo3xjbMxZANpyzAhPAEnHn5PlibrpdwkJ1cNfcSI0FeZrrCy raxU3SfLdUUDZv3GRx+epyQGKTLvzkIMP7RpOwbxg4xHR9U3X7R2K+QaPvvYvuu0ZbobfNLxvYi yCZ76fIojCtdL9CPftqGZfbzepFV+vskaaCelS4YahquYOhbhGdB2RWHko7hVlAtzcm4xMrUOkd IUmY4ea80AUChnPpl4slnHrSxBth+vqcuFHNbWzKW1Kip/i1aJD9aMrzVSt+zziA5KelceJSzD9 qZCW6MtA4UVYq1w== 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 --- lib/ref_tracker.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/lib/ref_tracker.c b/lib/ref_tracker.c index de71439e12a3bab6456910986fa611dfbdd97980..34ac37db209077d6771d5f4367e53d19ba3169c6 100644 --- a/lib/ref_tracker.c +++ b/lib/ref_tracker.c @@ -273,3 +273,19 @@ 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 = (struct dentry *)-ENOENT; + +static int __init ref_tracker_debugfs_init(void) +{ + ref_tracker_debug_dir = debugfs_create_dir("ref_tracker", NULL); + if (IS_ERR(ref_tracker_debug_dir)) + pr_warn("ref_tracker: unable to create debugfs ref_tracker directory: %pe\n", + ref_tracker_debug_dir); + return 0; +} +late_initcall(ref_tracker_debugfs_init); +#endif /* CONFIG_DEBUG_FS */ -- 2.49.0