patch-2.3.32 linux/fs/sysv/symlink.c

• Lines: 82
• Date: Thu Dec 9 13:10:18 1999
• Orig file: v2.3.31/linux/fs/sysv/symlink.c
• Orig date: Tue Dec 7 09:32:48 1999

diff -u --recursive --new-file v2.3.31/linux/fs/sysv/symlink.c linux/fs/sysv/symlink.c
@@ -13,77 +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,			/* truncate */
-	NULL,			/* permission */
-	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;
-}