linux-kernel - [PATCH 17/26] open: avoid pointless cred reference count bump

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Message-ID: <20241124-work-cred-v1-17-f352241c3970@kernel.org>
Date: Sun, 24 Nov 2024 14:44:03 +0100
From: Christian Brauner <brauner@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Christian Brauner <brauner@...nel.org>,
	Amir Goldstein <amir73il@...il.com>,
	Miklos Szeredi <miklos@...redi.hu>,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 17/26] open: avoid pointless cred reference count bump

No need for the extra reference count bump.

Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 fs/open.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/fs/open.c b/fs/open.c
index 0a5cd8e74fb9bb4cc484d84096c6123b21acbf16..74ee5e02d68c590475f18f099b188f052f17f555 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -447,13 +447,7 @@ static const struct cred *access_override_creds(void)
 	 * freeing.
 	 */
 	override_cred->non_rcu = 1;
-
-	old_cred = override_creds(get_new_cred(override_cred));
-
-	/* override_cred() gets its own ref */
-	put_cred(override_cred);
-
-	return old_cred;
+	return override_creds(override_cred);
 }
 
 static long do_faccessat(int dfd, const char __user *filename, int mode, int flags)

-- 
2.45.2