mount_pseudo(): drop 'name' argument, switch to d_make_root()

Once upon a time we used to set ->d_name of e.g. pipefs root
so that d_path() on pipes would work.  These days it's
completely pointless - dentries of pipes are not even connected
to pipefs root.  However, mount_pseudo() had set the root
dentry name (passed as the second argument) and callers
kept inventing names to pass to it.  Including those that
didn't *have* any non-root dentries to start with...

All of that had been pointless for about 8 years now; it's
time to get rid of that cargo-culting...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2 files changed, 2 insertions, 2 deletions

diff --git a/mm/z3fold.c b/mm/z3fold.c
index 0b14daf930a8..abeb5bcbea57 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -242,7 +242,7 @@ static inline void free_handle(unsigned long handle)
 static struct dentry *z3fold_do_mount(struct file_system_type *fs_type,
 				int flags, const char *dev_name, void *data)
 {
-	return mount_pseudo(fs_type, "z3fold:", NULL, NULL, 0x33);
+	return mount_pseudo(fs_type, NULL, NULL, 0x33);
 }
 
 static struct file_system_type z3fold_fs = {
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index d9f831f63625..ef230be8c03e 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -1817,7 +1817,7 @@ static void lock_zspage(struct zspage *zspage)
 static struct dentry *zs_mount(struct file_system_type *fs_type,
 				int flags, const char *dev_name, void *data)
 {
-	return mount_pseudo(fs_type, "zsmalloc:", NULL, NULL, ZSMALLOC_MAGIC);
+	return mount_pseudo(fs_type, NULL, NULL, ZSMALLOC_MAGIC);
 }
 
 static struct file_system_type zsmalloc_fs = {