linux-kernel - [PATCH] fs: assert ->i_lock held in _

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Message-ID: <20250930235314.88372-1-mjguzik@gmail.com>
Date: Wed,  1 Oct 2025 01:53:14 +0200
From: Mateusz Guzik <mjguzik@...il.com>
To: brauner@...nel.org
Cc: viro@...iv.linux.org.uk,
	jack@...e.cz,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	Mateusz Guzik <mjguzik@...il.com>
Subject: [PATCH] fs: assert ->i_lock held in __iget()

Also remove the now redundant comment.

Signed-off-by: Mateusz Guzik <mjguzik@...il.com>
---

verified this booted with ext4 on root, no splats

 include/linux/fs.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9e9d7c757efe..4c773c4ee7aa 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3368,11 +3368,9 @@ static inline bool is_zero_ino(ino_t ino)
 	return (u32)ino == 0;
 }
 
-/*
- * inode->i_lock must be held
- */
 static inline void __iget(struct inode *inode)
 {
+	lockdep_assert_held(&inode->i_lock);
 	atomic_inc(&inode->i_count);
 }
 
-- 
2.34.1