LXR linux/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