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kernel/linux-imx6_3.14.28/fs/coda/symlink.c 1.1 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Symlink inode operations for Coda filesystem
   * Original version: (C) 1996 P. Braam and M. Callahan
   * Rewritten for Linux 2.1. (C) 1997 Carnegie Mellon University
   * 
   * Carnegie Mellon encourages users to contribute improvements to
   * the Coda project. Contact Peter Braam (coda@cs.cmu.edu).
   */
  
  #include <linux/types.h>
  #include <linux/kernel.h>
  #include <linux/time.h>
  #include <linux/fs.h>
  #include <linux/stat.h>
  #include <linux/errno.h>
  #include <linux/pagemap.h>
  
  #include <linux/coda.h>
  #include <linux/coda_psdev.h>
  
  #include "coda_linux.h"
  
  static int coda_symlink_filler(struct file *file, struct page *page)
  {
  	struct inode *inode = page->mapping->host;
  	int error;
  	struct coda_inode_info *cii;
  	unsigned int len = PAGE_SIZE;
  	char *p = kmap(page);
  
  	cii = ITOC(inode);
  
  	error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
  	if (error)
  		goto fail;
  	SetPageUptodate(page);
  	kunmap(page);
  	unlock_page(page);
  	return 0;
  
  fail:
  	SetPageError(page);
  	kunmap(page);
  	unlock_page(page);
  	return error;
  }
  
  const struct address_space_operations coda_symlink_aops = {
  	.readpage	= coda_symlink_filler,
  };