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authorChristian Brauner <brauner@kernel.org>2023-11-22 12:17:37 -0500
committerDavid Sterba <dsterba@suse.com>2023-12-15 20:27:03 +0100
commitf67d922edb4e95a4a56d07d5d40a76dd4f23a85b (patch)
treeb5fd22ceb1ee2a1d1b98d82b47989ed0c69164d5
parent3c0e918b8fb3a6a7da1558913302a3e89cf87343 (diff)
fs: indicate request originates from old mount API
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> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: Christian Brauner <brauner@kernel.org> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/namespace.c11
1 files changed, 11 insertions, 0 deletions
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));