linux-stable/fs/coda/symlink.c
Matthew Wilcox (Oracle) 65c0d259cb coda: Convert coda to read_folio
This is a "weak" conversion which converts straight back to using pages.
A full conversion should be performed at some point, hopefully by
someone familiar with the filesystem.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2022-05-09 16:21:45 -04:00

49 lines
1.1 KiB
C

// 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 page *page = &folio->page;
struct inode *inode = folio->mapping->host;
int error;
struct coda_inode_info *cii;
unsigned int len = PAGE_SIZE;
char *p = page_address(page);
cii = ITOC(inode);
error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
if (error)
goto fail;
SetPageUptodate(page);
unlock_page(page);
return 0;
fail:
SetPageError(page);
unlock_page(page);
return error;
}
const struct address_space_operations coda_symlink_aops = {
.read_folio = coda_symlink_filler,
};