mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
f5e54d6e53
Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
/*
|
|
* 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;
|
|
}
|
|
|
|
const struct address_space_operations coda_symlink_aops = {
|
|
.readpage = coda_symlink_filler,
|
|
};
|