Annotate fs/namei.c with user pointer annotations.

fs/namei.c

@@ -108,7 +108,7 @@
  * POSIX.1 2.4: an empty pathname is invalid (ENOENT).
  * PATH_MAX includes the nul terminator --RR.
  */
-static inline int do_getname(const char *filename, char *page)
+static inline int do_getname(const char __user *filename, char *page)
 {
 	int retval;
 	unsigned long len = PATH_MAX;
@@ -129,7 +129,7 @@ static inline int do_getname(const char *filename, char *page)
 	return retval;
 }
 
-char * getname(const char * filename)
+char * getname(const char __user * filename)
 {
 	char *tmp, *result;
 
@@ -941,7 +941,7 @@ struct dentry * lookup_one_len(const char * name, struct dentry * base, int len)
  * that namei follows links, while lnamei does not.
  * SMP-safe
  */
-int __user_walk(const char *name, unsigned flags, struct nameidata *nd)
+int __user_walk(const char __user *name, unsigned flags, struct nameidata *nd)
 {
 	char *tmp = getname(name);
 	int err = PTR_ERR(tmp);
@@ -1402,7 +1402,7 @@ int vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
 	return error;
 }
 
-asmlinkage long sys_mknod(const char * filename, int mode, dev_t dev)
+asmlinkage long sys_mknod(const char __user * filename, int mode, dev_t dev)
 {
 	int error = 0;
 	char * tmp;
@@ -1471,7 +1471,7 @@ int vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	return error;
 }
 
-asmlinkage long sys_mkdir(const char * pathname, int mode)
+asmlinkage long sys_mkdir(const char __user * pathname, int mode)
 {
 	int error = 0;
 	char * tmp;
@@ -1568,7 +1568,7 @@ int vfs_rmdir(struct inode *dir, struct dentry *dentry)
 	return error;
 }
 
-asmlinkage long sys_rmdir(const char * pathname)
+asmlinkage long sys_rmdir(const char __user * pathname)
 {
 	int error = 0;
 	char * name;
@@ -1643,7 +1643,7 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
  * writeout happening, and we don't want to prevent access to the directory
  * while waiting on the I/O.
  */
-asmlinkage long sys_unlink(const char * pathname)
+asmlinkage long sys_unlink(const char __user * pathname)
 {
 	int error = 0;
 	char * name;
@@ -1714,7 +1714,7 @@ int vfs_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
 	return error;
 }
 
-asmlinkage long sys_symlink(const char * oldname, const char * newname)
+asmlinkage long sys_symlink(const char __user * oldname, const char __user * newname)
 {
 	int error = 0;
 	char * from;
@@ -1796,7 +1796,7 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
  * with linux 2.0, and to avoid hard-linking to directories
  * and other special files.  --ADM
  */
-asmlinkage long sys_link(const char * oldname, const char * newname)
+asmlinkage long sys_link(const char __user * oldname, const char __user * newname)
 {
 	struct dentry *new_dentry;
 	struct nameidata nd, old_nd;
@@ -2057,7 +2057,7 @@ static inline int do_rename(const char * oldname, const char * newname)
 	return error;
 }
 
-asmlinkage long sys_rename(const char * oldname, const char * newname)
+asmlinkage long sys_rename(const char __user * oldname, const char __user * newname)
 {
 	int error;
 	char * from;
@@ -2076,7 +2076,7 @@ asmlinkage long sys_rename(const char * oldname, const char * newname)
 	return error;
 }
 
-int vfs_readlink(struct dentry *dentry, char *buffer, int buflen, const char *link)
+int vfs_readlink(struct dentry *dentry, char __user *buffer, int buflen, const char *link)
 {
 	int len;
 
@@ -2157,7 +2157,7 @@ static char *page_getlink(struct dentry * dentry, struct page **ppage)
 	return (char*)page;
 }
 
-int page_readlink(struct dentry *dentry, char *buffer, int buflen)
+int page_readlink(struct dentry *dentry, char __user *buffer, int buflen)
 {
 	struct page *page = NULL;
 	char *s = page_getlink(dentry, &page);