linux-kernel - [PATCH v4 18/59] switch __getname_maybe_null() to CLASS(filename

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Message-ID: <20260108073803.425343-19-viro@zeniv.linux.org.uk>
Date: Thu,  8 Jan 2026 07:37:22 +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: [PATCH v4 18/59] switch __getname_maybe_null() to CLASS(filename_flags)

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 fs/namei.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 15e14802cabb..f8c11e1a6b11 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -227,7 +227,6 @@ struct filename *getname_uflags(const char __user *filename, int uflags)
 
 struct filename *__getname_maybe_null(const char __user *pathname)
 {
-	struct filename *name;
 	char c;
 
 	/* try to save on allocations; loss on um, though */
@@ -236,12 +235,11 @@ struct filename *__getname_maybe_null(const char __user *pathname)
 	if (!c)
 		return NULL;
 
-	name = getname_flags(pathname, LOOKUP_EMPTY);
-	if (!IS_ERR(name) && !(name->name[0])) {
-		putname(name);
-		name = NULL;
-	}
-	return name;
+	CLASS(filename_flags, name)(pathname, LOOKUP_EMPTY);
+	/* empty pathname translates to NULL */
+	if (!IS_ERR(name) && !(name->name[0]))
+		return NULL;
+	return no_free_ptr(name);
 }
 
 struct filename *getname_kernel(const char * filename)
-- 
2.47.3