linux-kernel - [PATCH 2/6] namei: Add missing annotation for unlazy

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Date:   Mon, 16 Mar 2020 23:38:00 +0000
From:   Jules Irenge <jbi.octave@...il.com>
To:     boqun.feng@...il.com
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>
Subject: [PATCH 2/6] namei: Add missing annotation for unlazy_child()

Sparse reports a warning at unlazy_child()

warning: context imbalance in unlazy_child() - unexpected unlock

The root cause is the missing annotation at unlazy_walk()

Add the missing __releases(RCU) annotation

Signed-off-by: Jules Irenge <jbi.octave@...il.com>
---
 fs/namei.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/namei.c b/fs/namei.c
index d80e1ac8c211..9af3e8e438a1 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -717,6 +717,7 @@ static int unlazy_walk(struct nameidata *nd)
  * terminate_walk().
  */
 static int unlazy_child(struct nameidata *nd, struct dentry *dentry, unsigned seq)
+	__releases(RCU)
 {
 	BUG_ON(!(nd->flags & LOOKUP_RCU));
 
-- 
2.24.1