linux/fs/xfs/xfs_symlink.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
 * Copyright (c) 2012-2013 Red Hat, Inc.
 * All rights reserved.
 */
#include "xfs.h"
#include "xfs_shared.h"
#include "xfs_fs.h"
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_bit.h"
#include "xfs_mount.h"
#include "xfs_dir2.h"
#include "xfs_inode.h"
#include "xfs_bmap.h"
#include "xfs_bmap_btree.h"
#include "xfs_quota.h"
#include "xfs_symlink.h"
#include "xfs_trans_space.h"
#include "xfs_trace.h"
#include "xfs_trans.h"
#include "xfs_ialloc.h"
#include "xfs_error.h"
#include "xfs_health.h"
#include "xfs_symlink_remote.h"
#include "xfs_parent.h"
#include "xfs_defer.h"

int
xfs_readlink(
	struct xfs_inode	*ip,
	char			*link)
{ … }

int
xfs_symlink(
	struct mnt_idmap	*idmap,
	struct xfs_inode	*dp,
	struct xfs_name		*link_name,
	const char		*target_path,
	umode_t			mode,
	struct xfs_inode	**ipp)
{ … }

/*
 * Free a symlink that has blocks associated with it.
 *
 * Note: zero length symlinks are not allowed to exist. When we set the size to
 * zero, also change it to a regular file so that it does not get written to
 * disk as a zero length symlink. The inode is on the unlinked list already, so
 * userspace cannot find this inode anymore, so this change is not user visible
 * but allows us to catch corrupt zero-length symlinks in the verifiers.
 */
STATIC int
xfs_inactive_symlink_rmt(
	struct xfs_inode	*ip)
{ … }

/*
 * xfs_inactive_symlink - free a symlink
 */
int
xfs_inactive_symlink(
	struct xfs_inode	*ip)
{ … }