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5a8338c882
This patch removes the old parent pointer attribute during the rename operation, and re-adds the updated parent pointer. Signed-off-by: Allison Henderson <allison.henderson@oracle.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> [djwong: adjust to new ondisk format] Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
111 lines
4.2 KiB
C
111 lines
4.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_TRANS_SPACE_H__
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#define __XFS_TRANS_SPACE_H__
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/*
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* Components of space reservations.
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*/
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/* Worst case number of bmaps that can be held in a block. */
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#define XFS_MAX_CONTIG_BMAPS_PER_BLOCK(mp) \
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(((mp)->m_bmap_dmxr[0]) - ((mp)->m_bmap_dmnr[0]))
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/* Worst case number of rmaps that can be held in a block. */
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#define XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) \
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(((mp)->m_rmap_mxr[0]) - ((mp)->m_rmap_mnr[0]))
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/* Adding one rmap could split every level up to the top of the tree. */
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#define XFS_RMAPADD_SPACE_RES(mp) ((mp)->m_rmap_maxlevels)
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/*
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* Note that we historically set m_rmap_maxlevels to 9 when reflink is enabled,
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* so we must preserve this behavior to avoid changing the transaction space
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* reservations and minimum log size calculations for existing filesystems.
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*/
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#define XFS_OLD_REFLINK_RMAP_MAXLEVELS 9
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/* Blocks we might need to add "b" rmaps to a tree. */
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#define XFS_NRMAPADD_SPACE_RES(mp, b)\
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(((b + XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp) - 1) / \
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XFS_MAX_CONTIG_RMAPS_PER_BLOCK(mp)) * \
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XFS_RMAPADD_SPACE_RES(mp))
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#define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) \
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(((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0]))
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#define XFS_EXTENTADD_SPACE_RES(mp,w) (XFS_BM_MAXLEVELS(mp,w) - 1)
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#define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\
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(((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
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XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
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XFS_EXTENTADD_SPACE_RES(mp,w))
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/* Blocks we might need to add "b" mappings & rmappings to a file. */
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#define XFS_SWAP_RMAP_SPACE_RES(mp,b,w)\
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(XFS_NEXTENTADD_SPACE_RES((mp), (b), (w)) + \
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XFS_NRMAPADD_SPACE_RES((mp), (b)))
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#define XFS_DAENTER_1B(mp,w) \
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((w) == XFS_DATA_FORK ? (mp)->m_dir_geo->fsbcount : 1)
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#define XFS_DAENTER_DBS(mp,w) \
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(XFS_DA_NODE_MAXDEPTH + (((w) == XFS_DATA_FORK) ? 2 : 0))
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#define XFS_DAENTER_BLOCKS(mp,w) \
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(XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w))
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#define XFS_DAENTER_BMAP1B(mp,w) \
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XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w)
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#define XFS_DAENTER_BMAPS(mp,w) \
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(XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w))
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#define XFS_DAENTER_SPACE_RES(mp,w) \
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(XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w))
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#define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w)
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#define XFS_DIRENTER_MAX_SPLIT(mp,nl) 1
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#define XFS_DIRENTER_SPACE_RES(mp,nl) \
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(XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
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XFS_DIRENTER_MAX_SPLIT(mp,nl))
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#define XFS_DIRREMOVE_SPACE_RES(mp) \
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XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
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#define XFS_IALLOC_SPACE_RES(mp) \
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(M_IGEO(mp)->ialloc_blks + \
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((xfs_has_finobt(mp) ? 2 : 1) * M_IGEO(mp)->inobt_maxlevels))
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/*
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* Space reservation values for various transactions.
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*/
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#define XFS_ADDAFORK_SPACE_RES(mp) \
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((mp)->m_dir_geo->fsbcount + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK))
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#define XFS_ATTRRM_SPACE_RES(mp) \
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XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK)
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/* This macro is not used - see inline code in xfs_attr_set */
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#define XFS_ATTRSET_SPACE_RES(mp, v) \
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(XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))
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#define XFS_DIOSTRAT_SPACE_RES(mp, v) \
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(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
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#define XFS_GROWFS_SPACE_RES(mp) \
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(2 * (mp)->m_alloc_maxlevels)
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#define XFS_GROWFSRT_SPACE_RES(mp,b) \
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((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
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#define XFS_QM_DQALLOC_SPACE_RES(mp) \
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(XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
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XFS_DQUOT_CLUSTER_SIZE_FSB)
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#define XFS_QM_QINOCREATE_SPACE_RES(mp) \
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XFS_IALLOC_SPACE_RES(mp)
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#define XFS_IFREE_SPACE_RES(mp) \
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(xfs_has_finobt(mp) ? M_IGEO(mp)->inobt_maxlevels : 0)
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unsigned int xfs_parent_calc_space_res(struct xfs_mount *mp,
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unsigned int namelen);
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unsigned int xfs_create_space_res(struct xfs_mount *mp, unsigned int namelen);
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unsigned int xfs_mkdir_space_res(struct xfs_mount *mp, unsigned int namelen);
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unsigned int xfs_link_space_res(struct xfs_mount *mp, unsigned int namelen);
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unsigned int xfs_symlink_space_res(struct xfs_mount *mp, unsigned int namelen,
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unsigned int fsblocks);
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unsigned int xfs_remove_space_res(struct xfs_mount *mp, unsigned int namelen);
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unsigned int xfs_rename_space_res(struct xfs_mount *mp,
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unsigned int src_namelen, bool target_exists,
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unsigned int target_namelen, bool has_whiteout);
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#endif /* __XFS_TRANS_SPACE_H__ */
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