1 /*
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
24 static int coda_symlink_filler(struct file *file, struct page *page)
25 {
26 struct inode *inode = page->mapping->host;
27 int error;
28 struct coda_inode_info *cii;
29 unsigned int len = PAGE_SIZE;
30 char *p = kmap(page);
31
32 lock_kernel();
33 cii = ITOC(inode);
34
35 error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
36 unlock_kernel();
37 if (error)
38 goto fail;
39 SetPageUptodate(page);
40 kunmap(page);
41 unlock_page(page);
42 return 0;
43
44 fail:
45 SetPageError(page);
46 kunmap(page);
47 unlock_page(page);
48 return error;
49 }
50
51 const struct address_space_operations coda_symlink_aops = {
52 .readpage = coda_symlink_filler,
53 };
54
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