constify ksys_mount() string arguments

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

diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 0dbc430..ba5c809 100644 (file)
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -357,8 +357,7 @@ int devtmpfs_mount(const char *mntdir)
        if (!thread)
                return 0;
 
-       err = ksys_mount("devtmpfs", (char *)mntdir, "devtmpfs", MS_SILENT,
-                        NULL);
+       err = ksys_mount("devtmpfs", mntdir, "devtmpfs", MS_SILENT, NULL);
        if (err)
                printk(KERN_INFO "devtmpfs: error mounting %i\n", err);
        else

diff --git a/fs/namespace.c b/fs/namespace.c
index 2db2f4c..e272c24 100644 (file)
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -3295,8 +3295,8 @@ struct dentry *mount_subtree(struct vfsmount *m, const char *name)
 }
 EXPORT_SYMBOL(mount_subtree);
 
-int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
-              unsigned long flags, void __user *data)
+int ksys_mount(const char __user *dev_name, const char __user *dir_name,
+              const char __user *type, unsigned long flags, void __user *data)
 {
        int ret;
        char *kernel_type;

diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index e2870fe..2a0ac10 100644 (file)
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -1228,8 +1228,8 @@ asmlinkage long sys_ni_syscall(void);
  * the ksys_xyzyyz() functions prototyped below.
  */
 
-int ksys_mount(char __user *dev_name, char __user *dir_name, char __user *type,
-              unsigned long flags, void __user *data);
+int ksys_mount(const char __user *dev_name, const char __user *dir_name,
+              const char __user *type, unsigned long flags, void __user *data);
 int ksys_umount(char __user *name, int flags);
 int ksys_dup(unsigned int fildes);
 int ksys_chroot(const char __user *filename);