[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20250529-reftrack-dbgfs-v12-3-11b93c0c0b6e@kernel.org>
Date: Thu, 29 May 2025 11:20:39 -0400
From: Jeff Layton <jlayton@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Simon Horman <horms@...nel.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Jani Nikula <jani.nikula@...ux.intel.com>,
Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Tvrtko Ursulin <tursulin@...ulin.net>
Cc: Kuniyuki Iwashima <kuniyu@...zon.com>, Qasim Ijaz <qasdev00@...il.com>,
Nathan Chancellor <nathan@...nel.org>, Andrew Lunn <andrew@...n.ch>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
Jeff Layton <jlayton@...nel.org>
Subject: [PATCH v12 03/10] ref_tracker: add a top level debugfs directory
for ref_tracker
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 <andrew@...n.ch>
Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
lib/ref_tracker.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/lib/ref_tracker.c b/lib/ref_tracker.c
index de71439e12a3bab6456910986fa611dfbdd97980..d374e5273e1497cac0d70c02c282baa2c3ab63fe 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 <linux/debugfs.h>
+
+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);
+ return 0;
+}
+late_initcall(ref_tracker_debugfs_init);
+#endif /* CONFIG_DEBUG_FS */
--
2.49.0
Powered by blists - more mailing lists