blob: b35e5bbd9c99b54047e843297d8c1e36b07bfb1e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*
* 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/smp_lock.h>
#include <linux/coda.h>
#include <linux/coda_linux.h>
#include <linux/coda_psdev.h>
#include <linux/coda_fs_i.h>
#include <linux/coda_proc.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);
lock_kernel();
cii = ITOC(inode);
coda_vfs_stat.follow_link++;
error = venus_readlink(inode->i_sb, &cii->c_fid, p, &len);
unlock_kernel();
if (error)
goto fail;
SetPageUptodate(page);
kunmap(page);
unlock_page(page);
return 0;
fail:
SetPageError(page);
kunmap(page);
unlock_page(page);
return error;
}
struct address_space_operations coda_symlink_aops = {
.readpage = coda_symlink_filler,
};
|
