linuxdebug/fs/coda/symlink.c

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2024-07-16 15:50:57 +02:00
// SPDX-License-Identifier: GPL-2.0
/*
* 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 "coda_psdev.h"
#include "coda_linux.h"
static int coda_symlink_filler(struct file *file, struct folio *folio)
{
struct inode *inode = folio->mapping->host;
int error;
struct coda_inode_info *cii;
unsigned int len = PAGE_SIZE;
char *p = folio_address(folio);
cii = ITOC(inode);
error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
if (error)
goto fail;
folio_mark_uptodate(folio);
folio_unlock(folio);
return 0;
fail:
folio_set_error(folio);
folio_unlock(folio);
return error;
}
const struct address_space_operations coda_symlink_aops = {
.read_folio = coda_symlink_filler,
};