linux-kernel - [RFC PATCH v3 51/59] move_mount(2): switch to CLASS(filename_maybe

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Message-ID: <20251216035518.4037331-52-viro@zeniv.linux.org.uk>
Date: Tue, 16 Dec 2025 03:55:10 +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 51/59] move_mount(2): switch to CLASS(filename_maybe_null)

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 fs/namespace.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 888df8ee43bc..612757bd166a 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -4402,8 +4402,6 @@ SYSCALL_DEFINE5(move_mount,
 {
 	struct path to_path __free(path_put) = {};
 	struct path from_path __free(path_put) = {};
-	struct filename *to_name __free(putname) = NULL;
-	struct filename *from_name __free(putname) = NULL;
 	unsigned int lflags, uflags;
 	enum mnt_tree_flags_t mflags = 0;
 	int ret = 0;
@@ -4425,7 +4423,7 @@ SYSCALL_DEFINE5(move_mount,
 	if (flags & MOVE_MOUNT_T_EMPTY_PATH)
 		uflags = AT_EMPTY_PATH;
 
-	to_name = getname_maybe_null(to_pathname, uflags);
+	CLASS(filename_maybe_null,to_name)(to_pathname, uflags);
 	if (!to_name && to_dfd >= 0) {
 		CLASS(fd_raw, f_to)(to_dfd);
 		if (fd_empty(f_to))
@@ -4448,7 +4446,7 @@ SYSCALL_DEFINE5(move_mount,
 	if (flags & MOVE_MOUNT_F_EMPTY_PATH)
 		uflags = AT_EMPTY_PATH;
 
-	from_name = getname_maybe_null(from_pathname, uflags);
+	CLASS(filename_maybe_null,from_name)(from_pathname, uflags);
 	if (!from_name && from_dfd >= 0) {
 		CLASS(fd_raw, f_from)(from_dfd);
 		if (fd_empty(f_from))
-- 
2.47.3