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 7617322FAF8; Thu, 29 May 2025 15:21:24 +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=1748532084; cv=none; b=YtUIIcYS2rsIlP5WQD8wja0jhV2oKiwp23F9FjrzwHF3+2rqwYKCZ0/5X5azLXsQSR4L1zJu7trgMHiAqsuqkbHvMbO8L5ASKwfgkEyw57hIS1cTx+CDmoRvSwoomPRa6NHkqDlAHPi6MFTDj1Bimg1xZ7GLj5ZhA69cB6WBBcM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748532084; c=relaxed/simple; bh=/bXRm3df/Jmd7dmKQp2EcMJiEFTG9IXhnmpGk9i/Yf4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=JmialT/5CZLOrVM+Gtmt+RGtM2GOepwqCBiftK7c2pep9AA7dXcXbf+dziBMV1p5Qy9cR/wc/U1lPINUTyANjwB88GheUzHeBXEn6FCNKtBzt6cy0Ts4IPs9rx9oZHno2OgJ3bO2eyV1DmaiadMslf2rlJXe5sD6lMW5BH+fslw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IIkCwJPG; 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="IIkCwJPG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2D27EC4CEE7; Thu, 29 May 2025 15:21:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1748532083; bh=/bXRm3df/Jmd7dmKQp2EcMJiEFTG9IXhnmpGk9i/Yf4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=IIkCwJPGHfFv5Vw8JniNayV8B6Iph7G54szXwgbkF4bZBP7NNHc2AoImAPIOTNozk y0uY/MOKbJDi41AlyYOdkVaGDdzJ9Xe9GVvhR4HxtYg7rKwu8pfuCUANDwY8QBeaW1 AKOJu5o1iSpbXEuyiOtChSEPEAZs2hHuylj4TTfK5Hm/NiPZnFhA0bf4AkbPMEiSwl YUAZrwbrDoT48WuIZOJQqqi2d/sDf4w37Uk9TTkI1oc5c9d/3IW2oIjakCRDhmk0Ld wz7NjRwA5Kz1pIylAVg5Vt25WByxbzUK9+8a15mdhR6z2vEAWnsbyRqVQYk3yoKoTR SpB6ezGcbHUJg== From: Jeff Layton Date: Thu, 29 May 2025 11:20:41 -0400 Subject: [PATCH v12 05/10] ref_tracker: add a static classname string to each ref_tracker_dir 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-v12-5-11b93c0c0b6e@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=6071; i=jlayton@kernel.org; h=from:subject:message-id; bh=/bXRm3df/Jmd7dmKQp2EcMJiEFTG9IXhnmpGk9i/Yf4=; b=owEBbQKS/ZANAwAKAQAOaEEZVoIVAcsmYgBoOHtmln6V4ed+81nml02QqkLNcQGLZKHAFNpo0 or6DobfRmKJAjMEAAEKAB0WIQRLwNeyRHGyoYTq9dMADmhBGVaCFQUCaDh7ZgAKCRAADmhBGVaC FVHLD/9G7fpYl3ANPpt71oI20MxdfY2S/90Q8WPoBnenSwhfVBAGyXwg5SN1+wTYR1xG67x8yAs qxded1nNEDTZmR1tmioXWN7fSBubT95JD2NuWEESc5kJmH1YMnPm1phsQSMMUHn5oTUHIP8KoeS MZaIQSDUCd6twipCWsilAIVUeeLfuFQGq3ETxJFFbybKtRIohLA/JXM72qgGMMU/2c64oQwD7da 7TeZp7UrJ6tP+N2qVDlB6twSD9zstRiCsNUulodaGLZsSnMVVYnHkq4D5DQe97JDqCLtZmMlw9L 8s6hEShrLSMB0azFFsweYproxLlPuqnFHMFaxv9sakO9VLbWqt5OQhU4qKtvyH7uWw3xlpHPKx2 0rSk6Aqsl8r4l20JcqfeDPkM2fIvQbtaHIXr5i9oT2TGjqR7WZJjJHiL8vrDjyDf99Q/RLp/gV4 Hf+mnw1kqde2KntXiMPAdvTMvjuCQqbpu+W4l13pUnEv7hKjYNxmgJAtvTRllFSwr+zb+v41h1G BN4/j2dIXH4B+A8PH3pWRKZA49k1bHYnpEekm0LFAMfAvyEDkGKVA8KjHAeiZRJwOuqQ2rqbRv5 XBhywTmVVT2gqaLZtueeyESbaQGTpWKpgp5evIwv9IuK45ZzQqXyzzoAPCINr0oaf0HdrC4E3OL Z4c0tn/wr9oAJXQ== X-Developer-Key: i=jlayton@kernel.org; a=openpgp; fpr=4BC0D7B24471B2A184EAF5D3000E684119568215 A later patch in the series will be adding debugfs files for each ref_tracker that get created in ref_tracker_dir_init(). The format will be "class@%px". The current "name" string can vary between ref_tracker_dir objects of the same type, so it's not suitable for this purpose. Add a new "class" string to the ref_tracker dir that describes the the type of object (sans any individual info for that object). Signed-off-by: Jeff Layton --- drivers/gpu/drm/display/drm_dp_tunnel.c | 2 +- drivers/gpu/drm/i915/intel_runtime_pm.c | 5 +++-- drivers/gpu/drm/i915/intel_wakeref.c | 4 ++-- include/linux/ref_tracker.h | 4 ++++ lib/test_ref_tracker.c | 2 +- net/core/dev.c | 2 +- net/core/net_namespace.c | 4 ++-- 7 files changed, 14 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/display/drm_dp_tunnel.c b/drivers/gpu/drm/disp= lay/drm_dp_tunnel.c index 076edf1610480275c62395334ab0536befa42f15..b9c12b8bf2a3e400b6d8e9d1841= 45834c603b9e1 100644 --- a/drivers/gpu/drm/display/drm_dp_tunnel.c +++ b/drivers/gpu/drm/display/drm_dp_tunnel.c @@ -1920,7 +1920,7 @@ drm_dp_tunnel_mgr_create(struct drm_device *dev, int = max_group_count) } =20 #ifdef CONFIG_DRM_DISPLAY_DP_TUNNEL_STATE_DEBUG - ref_tracker_dir_init(&mgr->ref_tracker, 16, "dptun"); + ref_tracker_dir_init(&mgr->ref_tracker, 16, "drm_dptun", "dptun"); #endif =20 for (i =3D 0; i < max_group_count; i++) { diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915= /intel_runtime_pm.c index 1b2ad1e0aef7d317f63a23b39193ea81c90401f0..90d90145a1890bf788e789858dd= ad3b3d8e3b978 100644 --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -59,8 +59,9 @@ static struct drm_i915_private *rpm_to_i915(struct intel_= runtime_pm *rpm) =20 static void init_intel_runtime_pm_wakeref(struct intel_runtime_pm *rpm) { - if (!rpm->debug.name[0]) - ref_tracker_dir_init(&rpm->debug, INTEL_REFTRACK_DEAD_COUNT, dev_name(rp= m->kdev)); + if (!rpm->debug.class) + ref_tracker_dir_init(&rpm->debug, INTEL_REFTRACK_DEAD_COUNT, + "intel_runtime_pm", dev_name(rpm->kdev)); } =20 static intel_wakeref_t diff --git a/drivers/gpu/drm/i915/intel_wakeref.c b/drivers/gpu/drm/i915/in= tel_wakeref.c index 3cfd68c98023fef75faa4dd69eba55e093130dd7..21dcee7c9a659ac1fb0aa19f301= 8647be3bda754 100644 --- a/drivers/gpu/drm/i915/intel_wakeref.c +++ b/drivers/gpu/drm/i915/intel_wakeref.c @@ -114,8 +114,8 @@ void __intel_wakeref_init(struct intel_wakeref *wf, "wakeref.work", &key->work, 0); =20 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_WAKEREF) - if (!wf->debug.name[0]) - ref_tracker_dir_init(&wf->debug, INTEL_REFTRACK_DEAD_COUNT, name); + if (!wf->debug.class) + ref_tracker_dir_init(&wf->debug, INTEL_REFTRACK_DEAD_COUNT, "intel_waker= ef", name); #endif } =20 diff --git a/include/linux/ref_tracker.h b/include/linux/ref_tracker.h index a0a1ee43724ffa00e60c116be18e481bfe1d1455..3968f993db81e95c0d58c814543= 11841c1b9cd35 100644 --- a/include/linux/ref_tracker.h +++ b/include/linux/ref_tracker.h @@ -19,6 +19,7 @@ struct ref_tracker_dir { bool dead; struct list_head list; /* List of active trackers */ struct list_head quarantine; /* List of dead trackers */ + const char *class; /* object classname */ char name[32]; #endif }; @@ -27,6 +28,7 @@ struct ref_tracker_dir { =20 static inline void ref_tracker_dir_init(struct ref_tracker_dir *dir, unsigned int quarantine_count, + const char *class, const char *name) { INIT_LIST_HEAD(&dir->list); @@ -36,6 +38,7 @@ static inline void ref_tracker_dir_init(struct ref_tracke= r_dir *dir, dir->dead =3D false; refcount_set(&dir->untracked, 1); refcount_set(&dir->no_tracker, 1); + dir->class =3D class; strscpy(dir->name, name, sizeof(dir->name)); stack_depot_init(); } @@ -60,6 +63,7 @@ int ref_tracker_free(struct ref_tracker_dir *dir, =20 static inline void ref_tracker_dir_init(struct ref_tracker_dir *dir, unsigned int quarantine_count, + const char *class, const char *name) { } diff --git a/lib/test_ref_tracker.c b/lib/test_ref_tracker.c index b983ceb12afcb84ad60360a1e6fec0072e78ef79..d263502a4c1db248f64a66a468e= 96c8e4cffab25 100644 --- a/lib/test_ref_tracker.c +++ b/lib/test_ref_tracker.c @@ -64,7 +64,7 @@ static int __init test_ref_tracker_init(void) { int i; =20 - ref_tracker_dir_init(&ref_dir, 100, "selftest"); + ref_tracker_dir_init(&ref_dir, 100, "selftest", "selftest"); =20 timer_setup(&test_ref_tracker_timer, test_ref_tracker_timer_func, 0); mod_timer(&test_ref_tracker_timer, jiffies + 1); diff --git a/net/core/dev.c b/net/core/dev.c index 2b514d95c528b8d6da8f34a8955da76117958b63..eeb6aab16987dde277314d1a6b5= bd32eaabab893 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -11714,7 +11714,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv= , const char *name, =20 dev->priv_len =3D sizeof_priv; =20 - ref_tracker_dir_init(&dev->refcnt_tracker, 128, name); + ref_tracker_dir_init(&dev->refcnt_tracker, 128, "netdev", name); #ifdef CONFIG_PCPU_DEV_REFCNT dev->pcpu_refcnt =3D alloc_percpu(int); if (!dev->pcpu_refcnt) diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 42ee7fce3d95b5a2756d6a3780edba070f01ddb6..8708eb975295ffb78de35fcf4ab= ef7cc281f5a51 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -403,8 +403,8 @@ static __net_init void preinit_net(struct net *net, str= uct user_namespace *user_ { refcount_set(&net->passive, 1); refcount_set(&net->ns.count, 1); - ref_tracker_dir_init(&net->refcnt_tracker, 128, "net refcnt"); - ref_tracker_dir_init(&net->notrefcnt_tracker, 128, "net notrefcnt"); + ref_tracker_dir_init(&net->refcnt_tracker, 128, "net_refcnt", "net_refcnt= "); + ref_tracker_dir_init(&net->notrefcnt_tracker, 128, "net_notrefcnt", "net_= notrefcnt"); =20 get_random_bytes(&net->hash_mix, sizeof(u32)); net->dev_base_seq =3D 1; --=20 2.49.0