LXR linux/fs/coda/symlink.c

   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 <linux/coda_psdev.h>
  21
  22#include "coda_linux.h"
  23
  24static 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 = page_address(page);
  31
  32        cii = ITOC(inode);
  33
  34        error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
  35        if (error)
  36                goto fail;
  37        SetPageUptodate(page);
  38        unlock_page(page);
  39        return 0;
  40
  41fail:
  42        SetPageError(page);
  43        unlock_page(page);
  44        return error;
  45}
  46
  47const struct address_space_operations coda_symlink_aops = {
  48        .readpage       = coda_symlink_filler,
  49};
  50