1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Symlink inode operations for Coda filesystem
4  * Original version: (C) 1996 P. Braam and M. Callahan
5  * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
6  *
7  * Carnegie Mellon encourages users to contribute improvements to
8  * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
9  */
10 
11 #include <linux/types.h>
12 #include <linux/kernel.h>
13 #include <linux/time.h>
14 #include <linux/fs.h>
15 #include <linux/stat.h>
16 #include <linux/errno.h>
17 #include <linux/pagemap.h>
18 
19 #include <linux/coda.h>
20 #include "coda_psdev.h"
21 #include "coda_linux.h"
22 
coda_symlink_filler(struct file * file,struct page * page)23 static int coda_symlink_filler(struct file *file, struct page *page)
24 {
25 	struct inode *inode = page->mapping->host;
26 	int error;
27 	struct coda_inode_info *cii;
28 	unsigned int len = PAGE_SIZE;
29 	char *p = page_address(page);
30 
31 	cii = ITOC(inode);
32 
33 	error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
34 	if (error)
35 		goto fail;
36 	SetPageUptodate(page);
37 	unlock_page(page);
38 	return 0;
39 
40 fail:
41 	SetPageError(page);
42 	unlock_page(page);
43 	return error;
44 }
45 
46 const struct address_space_operations coda_symlink_aops = {
47 	.readpage	= coda_symlink_filler,
48 };
49