[PATCH v14 2/9] ref_tracker: add a top level debugfs directory for ref_tracker
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STALE492d
SUPERSEDED: 2 (1M)
From: Jeff Layton <jlayton@kernel.org>
Date: 2025-06-10 14:59:47
Also in:
dri-devel, intel-gfx, lkml
Subsystem:
library code, the rest · Maintainers:
Andrew Morton, Linus Torvalds
Revision v14 of 14 in this series; 2 review trailers.
Revisions (14)
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@lunn.ch> Reviewed-by: Krzysztof Karas <redacted> Signed-off-by: Jeff Layton <jlayton@kernel.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