From nobody Mon Feb 9 13:58:06 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 1311922E3FF; Tue, 10 Jun 2025 14:59:47 +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=1749567588; cv=none; b=o3BomRl7ZGC2Q0ElakBgLV9RfbTT/npNTcO+FfD0vF4614SjQPgD+pNA01PhqQ15UYjrHt4r6t2TWSkik49dAXGZEDSERWhDTp+cF3rANl0aSFEKltY7OKXUc1ku+fENJJ0Ec3Gmq5CFW8O65GI4fnQslMLHs/19kpPEIVbzEoI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1749567588; c=relaxed/simple; bh=Cf9EAXyNK0VxD7speigkvYTyuNOgS7Co5M1zyvhQst0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=shS+voSAY3QOOCleZXh6Xdqe3i3XJGAuwDXX43Sh9gNnscHmvzMrKdGWt/Ow4h7RxNMC2pVMKIoHmabB3YWWGaBrJMe7GYlCGC//WN8SUugTIdwFspuBzIjK3XPFTi4ZjWYDJG6ADn23vHZj3zAHBMt8zAlEBw+nGgyQdUL+Xrk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jRVyUSQi; 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="jRVyUSQi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CED83C4CEF3; Tue, 10 Jun 2025 14:59:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749567587; bh=Cf9EAXyNK0VxD7speigkvYTyuNOgS7Co5M1zyvhQst0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=jRVyUSQi5NSA/8G51s+61XcdJIiDrwXTSB5z9QhQftdni3LWaPEYBOAb87eSGyLm/ zFuXvaJ7Qx6GuvC1jjYNIKV7/G/FqLxZqOAyqr6diaqRU5V7ou2yxF1sVeo88CmhgQ 9yS4xnxq+KWDRap4WpGfmMRJk/NWj7YMrHNsy0iX9Mm8VdQd4rdB9qJkA11n0HLxf0 zfXgXcZIJzWfE/JpW+GkRqyWOXPuo/MjNQA42S2GwdMubVaYboz0sIhB7APoj+nCaT yeM6QIAWOU/MRoEj9f+2kvtZ4Q4ecqayPQ74Wn1EHiIXXlqLkT+U5jFDT+GaljGWmV R3Vtf5pFNdiBA== From: Jeff Layton Date: Tue, 10 Jun 2025 10:59:22 -0400 Subject: [PATCH v14 2/9] 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: <20250610-reftrack-dbgfs-v14-2-efb532861428@kernel.org> References: <20250610-reftrack-dbgfs-v14-0-efb532861428@kernel.org> In-Reply-To: <20250610-reftrack-dbgfs-v14-0-efb532861428@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: Krzysztof Karas , 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=1088; i=jlayton@kernel.org; h=from:subject:message-id; bh=Cf9EAXyNK0VxD7speigkvYTyuNOgS7Co5M1zyvhQst0=; b=owEBbQKS/ZANAwAKAQAOaEEZVoIVAcsmYgBoSEhb0Bhnkc9PAOi30w9auebrSUuXyd5qHc8q0 c2ofUayTW6JAjMEAAEKAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCaEhIWwAKCRAADmhBGVaC FY9mD/92bM8abh1wNsArTm5QPT2mp6uHBRpU3d3q0Wqx5NX2sBpp4i976a2dlVesF4LwlD+NHTV UkAf43I1gMudrDtCUFEXfF7WqkA8WqvmE46VjC0efWLpF8wkHwiT7J3Xg6c9nQE2OyKd4xFnaU2 blAVVty1u9bJY8hDOs2WjVWzMLIqE2h793JS1uORilNVdc4BCMzHvV/+919AqURdh3vWH22hAfx IZM03cJlqnFvR9HC4re6RoR9k7oUSzOZI+ZoqRMc01k8JMfFCQQHvfRi+beVOfH0gZLUNPE4zit osn3+oqXWDI6zpGM/0fd1NiS7Y4/fdbr/vZwg+N6ymtkZfj8uaTIrSqebUSM5yIz7is6Ji6t1Qu Bnz6j1i83JTu+0IMzCdIOMHwwov/oVJd5pnJLtP7vSQkQGh8TlXyL+epG1b9Tzr+U0z9aMVyjJX vIFlgl3i4z8J6yi8oosD1kUsB9qPeVBiJL6t2EejGvlBFUSaL9/r5y2rbOtgIw+KPuCX282eCF9 skkGXCf36tra4DYscKf7OYWgHw6DP9hNV6jRzbgW1arSgPefy9fvLdZ1mG2cxWPJWyQXIh3Zt1k Mlh2O70jeMKs7KUN8Id2IeHU2BVd4yD0f7b/TubZKMoAt4XPhSALWOX4d25Hsst1BtNaZZdtWIt zf7fAEPcO0h1feg== 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 Reviewed-by: Krzysztof Karas Signed-off-by: Jeff Layton --- 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