vfs: make path_openat take a struct filename pointer

...and fix up the callers. For do_file_open_root, just declare a
struct filename on the stack and fill out the .name field. For
do_filp_open, make it also take a struct filename pointer, and fix up its
callers to call it appropriately.

For filp_open, add a variant that takes a struct filename pointer and turn
filp_open into a wrapper around it.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 2 deletions

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 90d2ed591de9..71cd288b2001 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1498,7 +1498,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
         if (IS_ERR(pathname))
                 goto out;
 
-        victim = filp_open(pathname->name, O_RDWR|O_LARGEFILE, 0);
+        victim = file_open_name(pathname, O_RDWR|O_LARGEFILE, 0);
         err = PTR_ERR(victim);
         if (IS_ERR(victim))
                 goto out;
@@ -1966,7 +1966,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
                 name = NULL;
                 goto bad_swap;
         }
-        swap_file = filp_open(name->name, O_RDWR|O_LARGEFILE, 0);
+        swap_file = file_open_name(name, O_RDWR|O_LARGEFILE, 0);
         if (IS_ERR(swap_file)) {
                 error = PTR_ERR(swap_file);
                 swap_file = NULL;