[PATCH] force O_LARGEFILE in sys_swapon() and sys_swapoff()

For 32-bit, one quickly discovers that swapon() is not given an fd already
opened with O_LARGEFILE to act upon and the forcing of O_LARGEFILE for
64-bit is irrelevant, as the system call's argument is a path.  So this
patch manually forces it for swapon() and swapoff().
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

mm/swapfile.c

@@ -1085,7 +1085,7 @@ asmlinkage long sys_swapoff(const char __user * specialfile)
 	if (IS_ERR(pathname))
 		goto out;
 
-	victim = filp_open(pathname, O_RDWR, 0);
+	victim = filp_open(pathname, O_RDWR|O_LARGEFILE, 0);
 	putname(pathname);
 	err = PTR_ERR(victim);
 	if (IS_ERR(victim))
@@ -1354,7 +1354,7 @@ asmlinkage long sys_swapon(const char __user * specialfile, int swap_flags)
 		name = NULL;
 		goto bad_swap_2;
 	}
-	swap_file = filp_open(name, O_RDWR, 0);
+	swap_file = filp_open(name, O_RDWR|O_LARGEFILE, 0);
 	error = PTR_ERR(swap_file);
 	if (IS_ERR(swap_file)) {
 		swap_file = NULL;