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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2000,2005 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_da_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
#include "xfs_da_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_trans_space.h"
/* Calculate the disk space required to add a parent pointer. */
unsigned int
xfs_parent_calc_space_res(
struct xfs_mount *mp,
unsigned int namelen)
{
/*
* Parent pointers are always the first attr in an attr tree, and never
* larger than a block
*/
return XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) +
XFS_NEXTENTADD_SPACE_RES(mp, namelen, XFS_ATTR_FORK);
}
unsigned int
xfs_create_space_res(
struct xfs_mount *mp,
unsigned int namelen)
{
unsigned int ret;
ret = XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp, namelen);
if (xfs_has_parent(mp))
ret += xfs_parent_calc_space_res(mp, namelen);
return ret;
}
unsigned int
xfs_mkdir_space_res(
struct xfs_mount *mp,
unsigned int namelen)
{
return xfs_create_space_res(mp, namelen);
}
unsigned int
xfs_link_space_res(
struct xfs_mount *mp,
unsigned int namelen)
{
unsigned int ret;
ret = XFS_DIRENTER_SPACE_RES(mp, namelen);
if (xfs_has_parent(mp))
ret += xfs_parent_calc_space_res(mp, namelen);
return ret;
}
unsigned int
xfs_symlink_space_res(
struct xfs_mount *mp,
unsigned int namelen,
unsigned int fsblocks)
{
unsigned int ret;
ret = XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp, namelen) +
fsblocks;
if (xfs_has_parent(mp))
ret += xfs_parent_calc_space_res(mp, namelen);
return ret;
}
unsigned int
xfs_remove_space_res(
struct xfs_mount *mp,
unsigned int namelen)
{
unsigned int ret = XFS_DIRREMOVE_SPACE_RES(mp);
if (xfs_has_parent(mp))
ret += xfs_parent_calc_space_res(mp, namelen);
return ret;
}
unsigned int
xfs_rename_space_res(
struct xfs_mount *mp,
unsigned int src_namelen,
bool target_exists,
unsigned int target_namelen,
bool has_whiteout)
{
unsigned int ret;
ret = XFS_DIRREMOVE_SPACE_RES(mp) +
XFS_DIRENTER_SPACE_RES(mp, target_namelen);
if (xfs_has_parent(mp)) {
if (has_whiteout)
ret += xfs_parent_calc_space_res(mp, src_namelen);
ret += 2 * xfs_parent_calc_space_res(mp, target_namelen);
}
if (target_exists)
ret += xfs_parent_calc_space_res(mp, target_namelen);
return ret;
}
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