linux-kernel - [PATCH] fs/namespace: describe @pinned parameter in do_lock

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Message-ID: <20250821171905.10251-1-suchitkarunakaran@gmail.com>
Date: Thu, 21 Aug 2025 22:49:05 +0530
From: Suchit Karunakaran <suchitkarunakaran@...il.com>
To: viro@...iv.linux.org.uk,
	brauner@...nel.org,
	jack@...e.cz,
	linux-fsdevel@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	skhan@...uxfoundation.org,
	linux-kernel-mentees@...ts.linux.dev,
	Suchit Karunakaran <suchitkarunakaran@...il.com>
Subject: [PATCH] fs/namespace: describe @pinned parameter in do_lock_mount()

Add a description for the @pinned parameter in do_lock_mount() to suppress
a compiler warning. No functional changes

Signed-off-by: Suchit Karunakaran <suchitkarunakaran@...il.com>
---
 fs/namespace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/namespace.c b/fs/namespace.c
index 0a5fec7065d7..52394a2ebaf3 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2738,6 +2738,9 @@ static int attach_recursive_mnt(struct mount *source_mnt,
 /**
  * do_lock_mount - lock mount and mountpoint
  * @path:    target path
+ * @pinned:  holds a reference to the mountpoint pinned during the
+ *           mount operation to prevent it from being unmounted or
+ *           moved concurrently
  * @beneath: whether the intention is to mount beneath @path
  *
  * Follow the mount stack on @path until the top mount @mnt is found. If
-- 
2.50.1