jfs: switch to simple_follow_link()

Reviewed-by: Jan Kara <[e-mail]>
Acked-by: Dave Kleikamp <[e-mail]>
Signed-off-by: Al Viro <[e-mail]>

fs/jfs/inode.c

···
 			inode->i_mapping->a_ops = &jfs_aops;
 		} else {
 			inode->i_op = &jfs_fast_symlink_inode_operations;
+			inode->i_link = JFS_IP(inode)->i_inline;
 			/*
 			 * The inline data should be null-terminated, but
 			 * don't let on-disk corruption crash the kernel
 			 */
-			JFS_IP(inode)->i_inline[inode->i_size] = '\0';
+			inode->i_link[inode->i_size] = '\0';
 		}
 	} else {
 		inode->i_op = &jfs_file_inode_operations;

fs/jfs/namei.c

···
 	int ssize;		/* source pathname size */
 	struct btstack btstack;
 	struct inode *ip = d_inode(dentry);
-	unchar *i_fastsymlink;
 	s64 xlen = 0;
 	int bmask = 0, xsize;
 	s64 xaddr;
···
 	if (ssize <= IDATASIZE) {
 		ip->i_op = &jfs_fast_symlink_inode_operations;
 
-		i_fastsymlink = JFS_IP(ip)->i_inline;
-		memcpy(i_fastsymlink, name, ssize);
+		ip->i_link = JFS_IP(ip)->i_inline;
+		memcpy(ip->i_link, name, ssize);
 		ip->i_size = ssize - 1;
 
 		/*

fs/jfs/symlink.c

···
  */
 
 #include <linux/fs.h>
-#include <linux/namei.h>
 #include "jfs_incore.h"
 #include "jfs_inode.h"
 #include "jfs_xattr.h"
 
-static void *jfs_follow_link(struct dentry *dentry, struct nameidata *nd)
-{
-	char *s = JFS_IP(d_inode(dentry))->i_inline;
-	nd_set_link(nd, s);
-	return NULL;
-}
-
 const struct inode_operations jfs_fast_symlink_inode_operations = {
 	.readlink	= generic_readlink,
-	.follow_link	= jfs_follow_link,
+	.follow_link	= simple_follow_link,
 	.setattr	= jfs_setattr,
 	.setxattr	= jfs_setxattr,
 	.getxattr	= jfs_getxattr,