um: hostfs: make functions static

The hostfs_*() callback functions are all only used within
hostfs_kern.c, so make them static.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: Richard Weinberger <richard@nod.at>

fs/hostfs/hostfs_kern.c

@@ -186,7 +186,7 @@ static struct inode *hostfs_iget(struct super_block *sb)
 	return inode;
 }
 
-int hostfs_statfs(struct dentry *dentry, struct kstatfs *sf)
+static int hostfs_statfs(struct dentry *dentry, struct kstatfs *sf)
 {
 	/*
 	 * do_statfs uses struct statfs64 internally, but the linux kernel
@@ -268,7 +268,7 @@ static const struct super_operations hostfs_sbops = {
 	.show_options	= hostfs_show_options,
 };
 
-int hostfs_readdir(struct file *file, struct dir_context *ctx)
+static int hostfs_readdir(struct file *file, struct dir_context *ctx)
 {
 	void *dir;
 	char *name;
@@ -293,7 +293,7 @@ int hostfs_readdir(struct file *file, struct dir_context *ctx)
 	return 0;
 }
 
-int hostfs_file_open(struct inode *ino, struct file *file)
+static int hostfs_file_open(struct inode *ino, struct file *file)
 {
 	static DEFINE_MUTEX(open_mutex);
 	char *name;
@@ -359,7 +359,8 @@ static int hostfs_file_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-int hostfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
+static int hostfs_fsync(struct file *file, loff_t start, loff_t end,
+			int datasync)
 {
 	struct inode *inode = file->f_mapping->host;
 	int ret;
@@ -394,7 +395,7 @@ static const struct file_operations hostfs_dir_fops = {
 	.read		= generic_read_dir,
 };
 
-int hostfs_writepage(struct page *page, struct writeback_control *wbc)
+static int hostfs_writepage(struct page *page, struct writeback_control *wbc)
 {
 	struct address_space *mapping = page->mapping;
 	struct inode *inode = mapping->host;
@@ -430,7 +431,7 @@ int hostfs_writepage(struct page *page, struct writeback_control *wbc)
 	return err;
 }
 
-int hostfs_readpage(struct file *file, struct page *page)
+static int hostfs_readpage(struct file *file, struct page *page)
 {
 	char *buffer;
 	long long start;
@@ -455,7 +456,7 @@ int hostfs_readpage(struct file *file, struct page *page)
 	return err;
 }
 
-int hostfs_write_begin(struct file *file, struct address_space *mapping,
+static int hostfs_write_begin(struct file *file, struct address_space *mapping,
 			      loff_t pos, unsigned len, unsigned flags,
 			      struct page **pagep, void **fsdata)
 {
@@ -467,7 +468,7 @@ int hostfs_write_begin(struct file *file, struct address_space *mapping,
 	return 0;
 }
 
-int hostfs_write_end(struct file *file, struct address_space *mapping,
+static int hostfs_write_end(struct file *file, struct address_space *mapping,
 			    loff_t pos, unsigned len, unsigned copied,
 			    struct page *page, void *fsdata)
 {
@@ -549,7 +550,7 @@ static int read_name(struct inode *ino, char *name)
 	return 0;
 }
 
-int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
+static int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 			 bool excl)
 {
 	struct inode *inode;
@@ -591,7 +592,7 @@ int hostfs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 	return error;
 }
 
-struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
+static struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
 				    unsigned int flags)
 {
 	struct inode *inode;
@@ -628,7 +629,8 @@ struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
 	return ERR_PTR(err);
 }
 
-int hostfs_link(struct dentry *to, struct inode *ino, struct dentry *from)
+static int hostfs_link(struct dentry *to, struct inode *ino,
+		       struct dentry *from)
 {
 	char *from_name, *to_name;
 	int err;
@@ -646,7 +648,7 @@ int hostfs_link(struct dentry *to, struct inode *ino, struct dentry *from)
 	return err;
 }
 
-int hostfs_unlink(struct inode *ino, struct dentry *dentry)
+static int hostfs_unlink(struct inode *ino, struct dentry *dentry)
 {
 	char *file;
 	int err;
@@ -662,7 +664,8 @@ int hostfs_unlink(struct inode *ino, struct dentry *dentry)
 	return err;
 }
 
-int hostfs_symlink(struct inode *ino, struct dentry *dentry, const char *to)
+static int hostfs_symlink(struct inode *ino, struct dentry *dentry,
+			  const char *to)
 {
 	char *file;
 	int err;
@@ -674,7 +677,7 @@ int hostfs_symlink(struct inode *ino, struct dentry *dentry, const char *to)
 	return err;
 }
 
-int hostfs_mkdir(struct inode *ino, struct dentry *dentry, umode_t mode)
+static int hostfs_mkdir(struct inode *ino, struct dentry *dentry, umode_t mode)
 {
 	char *file;
 	int err;
@@ -686,7 +689,7 @@ int hostfs_mkdir(struct inode *ino, struct dentry *dentry, umode_t mode)
 	return err;
 }
 
-int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
+static int hostfs_rmdir(struct inode *ino, struct dentry *dentry)
 {
 	char *file;
 	int err;
@@ -738,7 +741,7 @@ static int hostfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
 	return err;
 }
 
-int hostfs_rename(struct inode *from_ino, struct dentry *from,
+static int hostfs_rename(struct inode *from_ino, struct dentry *from,
 			 struct inode *to_ino, struct dentry *to)
 {
 	char *from_name, *to_name;
@@ -756,7 +759,7 @@ int hostfs_rename(struct inode *from_ino, struct dentry *from,
 	return err;
 }
 
-int hostfs_permission(struct inode *ino, int desired)
+static int hostfs_permission(struct inode *ino, int desired)
 {
 	char *name;
 	int r = 0, w = 0, x = 0, err;
@@ -782,7 +785,7 @@ int hostfs_permission(struct inode *ino, int desired)
 	return err;
 }
 
-int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
+static int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
 {
 	struct inode *inode = dentry->d_inode;
 	struct hostfs_iattr attrs;