1 files changed, 92 insertions, 0 deletions

diff --git a/fs/xfs/libxfs/xfs_trans_space.h b/fs/xfs/libxfs/xfs_trans_space.h
new file mode 100644
index 000000000000..bf9c4579334d
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_trans_space.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2000,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms 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.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#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_dir_geo->fsbcount : 1)
+#define XFS_DAENTER_DBS(mp,w)   \
+        (XFS_DA_NODE_MAXDEPTH + (((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)   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)        \
+        ((mp)->m_ialloc_blks + \
+         (xfs_sb_version_hasfinobt(&mp->m_sb) ? 2 : 1 * \
+          ((mp)->m_in_maxlevels - 1)))
+
+/*
+ * Space reservation values for various transactions.
+ */
+#define XFS_ADDAFORK_SPACE_RES(mp)      \
+        ((mp)->m_dir_geo->fsbcount + 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))
+#define XFS_IFREE_SPACE_RES(mp)         \
+        (xfs_sb_version_hasfinobt(&mp->m_sb) ? (mp)->m_in_maxlevels : 0)
+
+
+#endif  /* __XFS_TRANS_SPACE_H__ */