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authorChristoph Hellwig <hch@infradead.org>2008-10-30 02:11:40 -0400
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 02:11:40 -0400
commit136341b41ad4883bd668120f727a52c42331fe8a (patch)
tree0cb1b220073948f2632911354a828606a9e276bb /fs/xfs/xfs_btree.h
parent6c7699c047c50403149ad91331dd39de47dea070 (diff)
[XFS] cleanup btree record / key / ptr addressing macros.
Replace the generic record / key / ptr addressing macros that use cpp token pasting with simpler macros that do the job for just one given btree type. The new macros lose the cur argument and thus can be used outside the core btree code, but also gain an xfs_mount * argument to allow for checking the CRC flag in the near future. Note that many of these macros aren't actually used in the kernel code, but only in userspace (mostly in xfs_repair). SGI-PV: 988146 SGI-Modid: xfs-linux-melb:xfs-kern:32295a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Donald Douwsma <donaldd@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_btree.h')
-rw-r--r--fs/xfs/xfs_btree.h15
1 files changed, 0 insertions, 15 deletions
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 795a124cee6f..d6120a749060 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -149,21 +149,6 @@ do { \
149 } \ 149 } \
150} while (0) 150} while (0)
151 151
152/*
153 * Record, key, and pointer address calculation macros.
154 * Given block size, type prefix, block pointer, and index of requested entry
155 * (first entry numbered 1).
156 */
157#define XFS_BTREE_REC_ADDR(t,bb,i) \
158 ((t ## _rec_t *)((char *)(bb) + sizeof(t ## _block_t) + \
159 ((i) - 1) * sizeof(t ## _rec_t)))
160#define XFS_BTREE_KEY_ADDR(t,bb,i) \
161 ((t ## _key_t *)((char *)(bb) + sizeof(t ## _block_t) + \
162 ((i) - 1) * sizeof(t ## _key_t)))
163#define XFS_BTREE_PTR_ADDR(t,bb,i,mxr) \
164 ((t ## _ptr_t *)((char *)(bb) + sizeof(t ## _block_t) + \
165 (mxr) * sizeof(t ## _key_t) + ((i) - 1) * sizeof(t ## _ptr_t)))
166
167#define XFS_BTREE_MAXLEVELS 8 /* max of all btrees */ 152#define XFS_BTREE_MAXLEVELS 8 /* max of all btrees */
168 153
169struct xfs_btree_ops { 154struct xfs_btree_ops {