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- /*
- * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like. Any license provided herein, whether implied or
- * otherwise, applies only to this software file. Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write the Free Software Foundation, Inc., 59
- * Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
- * Mountain View, CA 94043, or:
- *
- * http://www.sgi.com
- *
- * For further information regarding this notice, see:
- *
- * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
- */
- #ifndef __XFS_TRANS_SPACE_H__
- #define __XFS_TRANS_SPACE_H__
- /*
- * Components of space reservations.
- */
- #define XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) \
- (((mp)->m_alloc_mxr[0]) - ((mp)->m_alloc_mnr[0]))
- #define XFS_EXTENTADD_SPACE_RES(mp,w) (XFS_BM_MAXLEVELS(mp,w) - 1)
- #define XFS_NEXTENTADD_SPACE_RES(mp,b,w)\
- (((b + XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp) - 1) / \
- XFS_MAX_CONTIG_EXTENTS_PER_BLOCK(mp)) * \
- XFS_EXTENTADD_SPACE_RES(mp,w))
- #define XFS_DAENTER_1B(mp,w) ((w) == XFS_DATA_FORK ? (mp)->m_dirblkfsbs : 1)
- #define XFS_DAENTER_DBS(mp,w) \
- (XFS_DA_NODE_MAXDEPTH + \
- ((XFS_DIR_IS_V2(mp) && (w) == XFS_DATA_FORK) ? 2 : 0))
- #define XFS_DAENTER_BLOCKS(mp,w) \
- (XFS_DAENTER_1B(mp,w) * XFS_DAENTER_DBS(mp,w))
- #define XFS_DAENTER_BMAP1B(mp,w) \
- XFS_NEXTENTADD_SPACE_RES(mp, XFS_DAENTER_1B(mp, w), w)
- #define XFS_DAENTER_BMAPS(mp,w) \
- (XFS_DAENTER_DBS(mp,w) * XFS_DAENTER_BMAP1B(mp,w))
- #define XFS_DAENTER_SPACE_RES(mp,w) \
- (XFS_DAENTER_BLOCKS(mp,w) + XFS_DAENTER_BMAPS(mp,w))
- #define XFS_DAREMOVE_SPACE_RES(mp,w) XFS_DAENTER_BMAPS(mp,w)
- #define XFS_DIRENTER_MAX_SPLIT(mp,nl) \
- (((mp)->m_sb.sb_blocksize == 512 && \
- XFS_DIR_IS_V1(mp) && \
- (nl) >= XFS_DIR_LEAF_CAN_DOUBLE_SPLIT_LEN) ? 2 : 1)
- #define XFS_DIRENTER_SPACE_RES(mp,nl) \
- (XFS_DAENTER_SPACE_RES(mp, XFS_DATA_FORK) * \
- XFS_DIRENTER_MAX_SPLIT(mp,nl))
- #define XFS_DIRREMOVE_SPACE_RES(mp) \
- XFS_DAREMOVE_SPACE_RES(mp, XFS_DATA_FORK)
- #define XFS_IALLOC_SPACE_RES(mp) \
- (XFS_IALLOC_BLOCKS(mp) + XFS_IN_MAXLEVELS(mp)-1)
- /*
- * Space reservation values for various transactions.
- */
- #define XFS_ADDAFORK_SPACE_RES(mp) \
- ((mp)->m_dirblkfsbs + \
- (XFS_DIR_IS_V1(mp) ? 0 : XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK)))
- #define XFS_ATTRRM_SPACE_RES(mp) \
- XFS_DAREMOVE_SPACE_RES(mp, XFS_ATTR_FORK)
- /* This macro is not used - see inline code in xfs_attr_set */
- #define XFS_ATTRSET_SPACE_RES(mp, v) \
- (XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK) + XFS_B_TO_FSB(mp, v))
- #define XFS_CREATE_SPACE_RES(mp,nl) \
- (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
- #define XFS_DIOSTRAT_SPACE_RES(mp, v) \
- (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + (v))
- #define XFS_GROWFS_SPACE_RES(mp) \
- (2 * XFS_AG_MAXLEVELS(mp))
- #define XFS_GROWFSRT_SPACE_RES(mp,b) \
- ((b) + XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK))
- #define XFS_LINK_SPACE_RES(mp,nl) \
- XFS_DIRENTER_SPACE_RES(mp,nl)
- #define XFS_MKDIR_SPACE_RES(mp,nl) \
- (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
- #define XFS_QM_DQALLOC_SPACE_RES(mp) \
- (XFS_EXTENTADD_SPACE_RES(mp, XFS_DATA_FORK) + \
- XFS_DQUOT_CLUSTER_SIZE_FSB)
- #define XFS_QM_QINOCREATE_SPACE_RES(mp) \
- XFS_IALLOC_SPACE_RES(mp)
- #define XFS_REMOVE_SPACE_RES(mp) \
- XFS_DIRREMOVE_SPACE_RES(mp)
- #define XFS_RENAME_SPACE_RES(mp,nl) \
- (XFS_DIRREMOVE_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl))
- #define XFS_SYMLINK_SPACE_RES(mp,nl,b) \
- (XFS_IALLOC_SPACE_RES(mp) + XFS_DIRENTER_SPACE_RES(mp,nl) + (b))
- #endif /* __XFS_TRANS_SPACE_H__ */
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