root/fs/ext2/symlink.c

DEFINITIONS

1. ext2_follow_link

/*
 *  linux/fs/ext2/symlink.c
 *
 * Only fast symlinks left here - the rest is done by generic code. AV, 1999
 *
 * Copyright (C) 1992, 1993, 1994, 1995
 * Remy Card (card@masi.ibp.fr)
 * Laboratoire MASI - Institut Blaise Pascal
 * Universite Pierre et Marie Curie (Paris VI)
 *
 *  from
 *
 *  linux/fs/minix/symlink.c
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 *
 *  ext2 symlink handling code
 */

#include "ext2.h"
#include "xattr.h"
#include <linux/namei.h>

static void *ext2_follow_link(struct dentry *dentry, struct nameidata *nd)
{
        struct ext2_inode_info *ei = EXT2_I(dentry->d_inode);
        nd_set_link(nd, (char *)ei->i_data);
        return NULL;
}

const struct inode_operations ext2_symlink_inode_operations = {
        .readlink       = generic_readlink,
        .follow_link    = page_follow_link_light,
        .put_link       = page_put_link,
#ifdef CONFIG_EXT2_FS_XATTR
        .setxattr       = generic_setxattr,
        .getxattr       = generic_getxattr,
        .listxattr      = ext2_listxattr,
        .removexattr    = generic_removexattr,
#endif
};
 
const struct inode_operations ext2_fast_symlink_inode_operations = {
        .readlink       = generic_readlink,
        .follow_link    = ext2_follow_link,
#ifdef CONFIG_EXT2_FS_XATTR
        .setxattr       = generic_setxattr,
        .getxattr       = generic_getxattr,
        .listxattr      = ext2_listxattr,
        .removexattr    = generic_removexattr,
#endif
};