patch-2.4.25 linux-2.4.25/fs/xfs/xfs_trans_space.h
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- Lines: 106
- Date:
2004-02-18 05:36:32.000000000 -0800
- Orig file:
linux-2.4.24/fs/xfs/xfs_trans_space.h
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.24/fs/xfs/xfs_trans_space.h linux-2.4.25/fs/xfs/xfs_trans_space.h
@@ -0,0 +1,105 @@
+/*
+ * 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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