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Diffstat (limited to 'fs/xfs/xfs_bmap_btree.h')
-rw-r--r--fs/xfs/xfs_bmap_btree.h62
1 files changed, 40 insertions, 22 deletions
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h
index 835be2a84ca1..7f001072db47 100644
--- a/fs/xfs/xfs_bmap_btree.h
+++ b/fs/xfs/xfs_bmap_btree.h
@@ -21,6 +21,7 @@
21#define XFS_BMAP_MAGIC 0x424d4150 /* 'BMAP' */ 21#define XFS_BMAP_MAGIC 0x424d4150 /* 'BMAP' */
22 22
23struct xfs_btree_cur; 23struct xfs_btree_cur;
24struct xfs_btree_block;
24struct xfs_btree_lblock; 25struct xfs_btree_lblock;
25struct xfs_mount; 26struct xfs_mount;
26struct xfs_inode; 27struct xfs_inode;
@@ -151,33 +152,50 @@ typedef struct xfs_btree_lblock xfs_bmbt_block_t;
151 152
152#define XFS_BUF_TO_BMBT_BLOCK(bp) ((xfs_bmbt_block_t *)XFS_BUF_PTR(bp)) 153#define XFS_BUF_TO_BMBT_BLOCK(bp) ((xfs_bmbt_block_t *)XFS_BUF_PTR(bp))
153 154
154#define XFS_BMAP_REC_DADDR(bb,i,cur) (XFS_BTREE_REC_ADDR(xfs_bmbt, bb, i)) 155#define XFS_BMBT_REC_ADDR(mp, block, index) \
155 156 ((xfs_bmbt_rec_t *) \
156#define XFS_BMAP_REC_IADDR(bb,i,cur) (XFS_BTREE_REC_ADDR(xfs_bmbt, bb, i)) 157 ((char *)(block) + \
157 158 sizeof(struct xfs_btree_lblock) + \
158#define XFS_BMAP_KEY_DADDR(bb,i,cur) \ 159 ((index) - 1) * sizeof(xfs_bmbt_rec_t)))
159 (XFS_BTREE_KEY_ADDR(xfs_bmbt, bb, i)) 160
160 161#define XFS_BMBT_KEY_ADDR(mp, block, index) \
161#define XFS_BMAP_KEY_IADDR(bb,i,cur) \ 162 ((xfs_bmbt_key_t *) \
162 (XFS_BTREE_KEY_ADDR(xfs_bmbt, bb, i)) 163 ((char *)(block) + \
163 164 sizeof(struct xfs_btree_lblock) + \
164#define XFS_BMAP_PTR_DADDR(bb,i,cur) \ 165 ((index) - 1) * sizeof(xfs_bmbt_key_t)))
165 (XFS_BTREE_PTR_ADDR(xfs_bmbt, bb, i, XFS_BMAP_BLOCK_DMAXRECS( \ 166
166 be16_to_cpu((bb)->bb_level), cur))) 167#define XFS_BMBT_PTR_ADDR(mp, block, index, maxrecs) \
167#define XFS_BMAP_PTR_IADDR(bb,i,cur) \ 168 ((xfs_bmbt_ptr_t *) \
168 (XFS_BTREE_PTR_ADDR(xfs_bmbt, bb, i, xfs_bmbt_get_maxrecs(cur, \ 169 ((char *)(block) + \
169 be16_to_cpu((bb)->bb_level)))) 170 sizeof(struct xfs_btree_lblock) + \
171 (maxrecs) * sizeof(xfs_bmbt_key_t) + \
172 ((index) - 1) * sizeof(xfs_bmbt_ptr_t)))
173
174#define XFS_BMDR_REC_ADDR(block, index) \
175 ((xfs_bmdr_rec_t *) \
176 ((char *)(block) + \
177 sizeof(struct xfs_bmdr_block) + \
178 ((index) - 1) * sizeof(xfs_bmdr_rec_t)))
179
180#define XFS_BMDR_KEY_ADDR(block, index) \
181 ((xfs_bmdr_key_t *) \
182 ((char *)(block) + \
183 sizeof(struct xfs_bmdr_block) + \
184 ((index) - 1) * sizeof(xfs_bmdr_key_t)))
185
186#define XFS_BMDR_PTR_ADDR(block, index, maxrecs) \
187 ((xfs_bmdr_ptr_t *) \
188 ((char *)(block) + \
189 sizeof(struct xfs_bmdr_block) + \
190 (maxrecs) * sizeof(xfs_bmdr_key_t) + \
191 ((index) - 1) * sizeof(xfs_bmdr_ptr_t)))
170 192
171/* 193/*
172 * These are to be used when we know the size of the block and 194 * These are to be used when we know the size of the block and
173 * we don't have a cursor. 195 * we don't have a cursor.
174 */ 196 */
175#define XFS_BMAP_BROOT_REC_ADDR(bb,i,sz) \ 197#define XFS_BMAP_BROOT_PTR_ADDR(mp, bb, i, sz) \
176 (XFS_BTREE_REC_ADDR(xfs_bmbt,bb,i)) 198 XFS_BMBT_PTR_ADDR(mp, bb, i, xfs_bmbt_maxrecs(mp, sz, 0))
177#define XFS_BMAP_BROOT_KEY_ADDR(bb,i,sz) \
178 (XFS_BTREE_KEY_ADDR(xfs_bmbt,bb,i))
179#define XFS_BMAP_BROOT_PTR_ADDR(mp, bb,i,sz) \
180 (XFS_BTREE_PTR_ADDR(xfs_bmbt,bb,i,xfs_bmbt_maxrecs(mp, sz, 0)))
181 199
182#define XFS_BMAP_BROOT_SPACE_CALC(nrecs) \ 200#define XFS_BMAP_BROOT_SPACE_CALC(nrecs) \
183 (int)(sizeof(xfs_bmbt_block_t) + \ 201 (int)(sizeof(xfs_bmbt_block_t) + \