blob: b35e5bbd9c99b54047e843297d8c1e36b07bfb1e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * Symlink inode operations for Coda filesystem
3 * Original version: (C) 1996 P. Braam and M. Callahan
4 * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
5 *
6 * Carnegie Mellon encourages users to contribute improvements to
7 * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
8 */
9
10#include <linux/types.h>
11#include <linux/kernel.h>
12#include <linux/time.h>
13#include <linux/fs.h>
14#include <linux/stat.h>
15#include <linux/errno.h>
16#include <linux/pagemap.h>
17#include <linux/smp_lock.h>
18
19#include <linux/coda.h>
20#include <linux/coda_linux.h>
21#include <linux/coda_psdev.h>
22#include <linux/coda_fs_i.h>
23#include <linux/coda_proc.h>
24
25static int coda_symlink_filler(struct file *file, struct page *page)
26{
27 struct inode *inode = page->mapping->host;
28 int error;
29 struct coda_inode_info *cii;
30 unsigned int len = PAGE_SIZE;
31 char *p = kmap(page);
32
33 lock_kernel();
34 cii = ITOC(inode);
35 coda_vfs_stat.follow_link++;
36
37 error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
38 unlock_kernel();
39 if (error)
40 goto fail;
41 SetPageUptodate(page);
42 kunmap(page);
43 unlock_page(page);
44 return 0;
45
46fail:
47 SetPageError(page);
48 kunmap(page);
49 unlock_page(page);
50 return error;
51}
52
53struct address_space_operations coda_symlink_aops = {
54 .readpage = coda_symlink_filler,
55};