linux-kernel - [PATCH v3 6/8] ref_tracker: widen the ref_tracker

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Message-Id: <20250417-reftrack-dbgfs-v3-6-c3159428c8fb@kernel.org>
Date: Thu, 17 Apr 2025 09:11:09 -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>
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, 
 Jeff Layton <jlayton@...nel.org>
Subject: [PATCH v3 6/8] ref_tracker: widen the ref_tracker_dir.name field

Currently it's 32 bytes, but with the need to move to unique names for
debugfs files, that won't be enough. Move to a 64 byte name field.

Signed-off-by: Jeff Layton <jlayton@...nel.org>
---
 include/linux/ref_tracker.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/ref_tracker.h b/include/linux/ref_tracker.h
index 77a55a32c067216fa02ba349498f53bd289aee0c..e47e81fd048812251eca2820a8b1e89f5750de3a 100644
--- a/include/linux/ref_tracker.h
+++ b/include/linux/ref_tracker.h
@@ -7,6 +7,8 @@
 #include <linux/stackdepot.h>
 #include <linux/seq_file.h>

+#define REF_TRACKER_NAMESZ	64
+
 struct ref_tracker;

 struct ref_tracker_dir {
@@ -21,7 +23,7 @@ struct ref_tracker_dir {
 #ifdef CONFIG_DEBUG_FS
 	struct dentry		*dentry;
 #endif
-	char			name[32];
+	char			name[REF_TRACKER_NAMESZ];
 #endif
 };

-- 
2.49.0