summaryrefslogtreecommitdiffstats
path: root/fs/sysv/symlink.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/sysv/symlink.c')
-rw-r--r--fs/sysv/symlink.c73
1 files changed, 4 insertions, 69 deletions
diff --git a/fs/sysv/symlink.c b/fs/sysv/symlink.c
index df611d589..3f77f831e 100644
--- a/fs/sysv/symlink.c
+++ b/fs/sysv/symlink.c
@@ -13,79 +13,14 @@
* SystemV/Coherent symlink handling code
*/
-#include <linux/errno.h>
-#include <linux/sched.h>
#include <linux/sysv_fs.h>
-#include <linux/stat.h>
-
-#include <asm/uaccess.h>
-
-static int sysv_readlink(struct dentry *, char *, int);
-static struct dentry *sysv_follow_link(struct dentry *, struct dentry *, unsigned int);
/*
* symlinks can't do much...
*/
struct inode_operations sysv_symlink_inode_operations = {
- NULL, /* no file-operations */
- NULL, /* create */
- NULL, /* lookup */
- NULL, /* link */
- NULL, /* unlink */
- NULL, /* symlink */
- NULL, /* mkdir */
- NULL, /* rmdir */
- NULL, /* mknod */
- NULL, /* rename */
- sysv_readlink, /* readlink */
- sysv_follow_link, /* follow_link */
- NULL, /* get_block */
- NULL, /* readpage */
- NULL, /* writepage */
- NULL, /* flushpage */
- NULL, /* truncate */
- NULL, /* permission */
- NULL, /* smap */
- NULL /* revalidate */
+ readlink: page_readlink,
+ follow_link: page_follow_link,
+ get_block: sysv_get_block,
+ readpage: block_read_full_page
};
-
-static struct dentry *sysv_follow_link(struct dentry * dentry,
- struct dentry * base,
- unsigned int follow)
-{
- struct inode *inode = dentry->d_inode;
- struct buffer_head * bh;
-
- bh = sysv_file_bread(inode, 0, 0);
- if (!bh) {
- dput(base);
- return ERR_PTR(-EIO);
- }
- UPDATE_ATIME(inode);
- base = lookup_dentry(bh->b_data, base, follow);
- brelse(bh);
- return base;
-}
-
-static int sysv_readlink(struct dentry * dentry, char * buffer, int buflen)
-{
- struct inode *inode = dentry->d_inode;
- struct buffer_head * bh;
- char * bh_data;
- int i;
- char c;
-
- if (buflen > inode->i_sb->sv_block_size_1)
- buflen = inode->i_sb->sv_block_size_1;
- bh = sysv_file_bread(inode, 0, 0);
- if (!bh)
- return 0;
- bh_data = bh->b_data;
- i = 0;
- while (i<buflen && (c = bh_data[i])) {
- i++;
- put_user(c,buffer++);
- }
- brelse(bh);
- return i;
-}