Root/fs/coda/symlink.c

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
18#include <linux/coda.h>
19#include <linux/coda_psdev.h>
20
21#include "coda_linux.h"
22
23static 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 = kmap(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    kunmap(page);
38    unlock_page(page);
39    return 0;
40
41fail:
42    SetPageError(page);
43    kunmap(page);
44    unlock_page(page);
45    return error;
46}
47
48const struct address_space_operations coda_symlink_aops = {
49    .readpage = coda_symlink_filler,
50};
51

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