linux-kernel - [RFC PATCH v3 42/59] do_readlinkat(): switch to CLASS(filename

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Message-ID: <20251216035518.4037331-43-viro@zeniv.linux.org.uk>
Date: Tue, 16 Dec 2025 03:55:01 +0000
From: Al Viro <viro@...iv.linux.org.uk>
To: linux-fsdevel@...r.kernel.org
Cc: torvalds@...ux-foundation.org,
	brauner@...nel.org,
	jack@...e.cz,
	mjguzik@...il.com,
	paul@...l-moore.com,
	axboe@...nel.dk,
	audit@...r.kernel.org,
	io-uring@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [RFC PATCH v3 42/59] do_readlinkat(): switch to CLASS(filename_flags)

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 fs/stat.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/fs/stat.c b/fs/stat.c
index ee9ae2c3273a..d18577f3688c 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -564,20 +564,17 @@ static int do_readlinkat(int dfd, const char __user *pathname,
 			 char __user *buf, int bufsiz)
 {
 	struct path path;
-	struct filename *name;
 	int error;
 	unsigned int lookup_flags = 0;
 
 	if (bufsiz <= 0)
 		return -EINVAL;
 
-	name = getname_flags(pathname, LOOKUP_EMPTY);
+	CLASS(filename_flags, name)(pathname, LOOKUP_EMPTY);
 retry:
 	error = filename_lookup(dfd, name, lookup_flags, &path, NULL);
-	if (unlikely(error)) {
-		putname(name);
+	if (unlikely(error))
 		return error;
-	}
 
 	/*
 	 * AFS mountpoints allow readlink(2) but are not symlinks
@@ -597,7 +594,6 @@ static int do_readlinkat(int dfd, const char __user *pathname,
 		lookup_flags |= LOOKUP_REVAL;
 		goto retry;
 	}
-	putname(name);
 	return error;
 }
 
-- 
2.47.3