diff mbox series

[v3,01/19] fs: indicate request originates from old mount api

Message ID 2f5e68f38d45e51cc03c16ad7b94bcb9cfbbd8ab.1700673401.git.josef@toxicpanda.com (mailing list archive)
State New, archived
Headers show
Series btrfs: convert to the new mount API | expand

Commit Message

Josef Bacik Nov. 22, 2023, 5:17 p.m. UTC 
From: Christian Brauner <brauner@kernel.org>

We already communicate to filesystems when a remount request comes from
the old mount api as some filesystems choose to implement different
behavior in the new mount api than the old mount api to e.g., take the
chance to fix significant api bugs. Allow the same for regular mount
requests.

Fixes: b330966f79fb ("fuse: reject options on reconfigure via fsconfig(2)")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
---
 fs/namespace.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/fs/namespace.c b/fs/namespace.c
index fbf0e596fcd3..6c39ec020a5f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2875,7 +2875,12 @@  static int do_remount(struct path *path, int ms_flags, int sb_flags,
 	if (IS_ERR(fc))
 		return PTR_ERR(fc);
 
+	/*
+	 * Indicate to the filesystem that the remount request is coming
+	 * from the legacy mount system call.
+	 */
 	fc->oldapi = true;
+
 	err = parse_monolithic_mount_data(fc, data);
 	if (!err) {
 		down_write(&sb->s_umount);
@@ -3324,6 +3329,12 @@  static int do_new_mount(struct path *path, const char *fstype, int sb_flags,
 	if (IS_ERR(fc))
 		return PTR_ERR(fc);
 
+	/*
+	 * Indicate to the filesystem that the mount request is coming
+	 * from the legacy mount system call.
+	 */
+	fc->oldapi = true;
+
 	if (subtype)
 		err = vfs_parse_fs_string(fc, "subtype",
 					  subtype, strlen(subtype));