From e209f9193a4724c1d4bc0b155c7beb78aa5d2928 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Wed, 18 Jun 2025 10:24:15 -0400 Subject: [PATCH] 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 Reviewed-by: Krzysztof Karas Signed-off-by: Jeff Layton Link: https://patch.msgid.link/20250618-reftrack-dbgfs-v15-2-24fc37ead144@kernel.org Signed-off-by: Jakub Kicinski --- lib/ref_tracker.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/lib/ref_tracker.c b/lib/ref_tracker.c index de71439e12a3b..d374e5273e149 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 = (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 */ -- 2.47.2