struct xfs_buf;
struct xfs_btree_cur;
-struct xfs_btree_sblock;
struct xfs_mount;
/*
#define XFS_IBT_MAGIC 0x49414254 /* 'IABT' */
typedef __uint64_t xfs_inofree_t;
-#define XFS_INODES_PER_CHUNK (NBBY * sizeof(xfs_inofree_t))
+#define XFS_INODES_PER_CHUNK (NBBY * sizeof(xfs_inofree_t))
#define XFS_INODES_PER_CHUNK_LOG (XFS_NBBYLOG + 3)
-#define XFS_INOBT_ALL_FREE ((xfs_inofree_t)-1)
+#define XFS_INOBT_ALL_FREE ((xfs_inofree_t)-1)
+#define XFS_INOBT_MASK(i) ((xfs_inofree_t)1 << (i))
-#define XFS_INOBT_MASKN(i,n) xfs_inobt_maskn(i,n)
static inline xfs_inofree_t xfs_inobt_maskn(int i, int n)
{
- return (((n) >= XFS_INODES_PER_CHUNK ? \
- (xfs_inofree_t)0 : ((xfs_inofree_t)1 << (n))) - 1) << (i);
+ return ((n >= XFS_INODES_PER_CHUNK ? 0 : XFS_INOBT_MASK(n)) - 1) << i;
}
/*
/* btree pointer type */
typedef __be32 xfs_inobt_ptr_t;
-/* btree block header type */
-typedef struct xfs_btree_sblock xfs_inobt_block_t;
-
-#define XFS_BUF_TO_INOBT_BLOCK(bp) ((xfs_inobt_block_t *)XFS_BUF_PTR(bp))
-
-/*
- * Bit manipulations for ir_free.
- */
-#define XFS_INOBT_MASK(i) ((xfs_inofree_t)1 << (i))
-#define XFS_INOBT_IS_FREE(rp,i) \
- (((rp)->ir_free & XFS_INOBT_MASK(i)) != 0)
-#define XFS_INOBT_SET_FREE(rp,i) ((rp)->ir_free |= XFS_INOBT_MASK(i))
-#define XFS_INOBT_CLR_FREE(rp,i) ((rp)->ir_free &= ~XFS_INOBT_MASK(i))
-
-/*
- * Maximum number of inode btree levels.
- */
-#define XFS_IN_MAXLEVELS(mp) ((mp)->m_in_maxlevels)
-
/*
* block numbers in the AG.
*/
#define XFS_PREALLOC_BLOCKS(mp) ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))
/*
+ * Btree block header size depends on a superblock flag.
+ *
+ * (not quite yet, but soon)
+ */
+#define XFS_INOBT_BLOCK_LEN(mp) XFS_BTREE_SBLOCK_LEN
+
+/*
* Record, key, and pointer address macros for btree blocks.
*
* (note that some of these may appear unused, but they are used in userspace)
#define XFS_INOBT_REC_ADDR(mp, block, index) \
((xfs_inobt_rec_t *) \
((char *)(block) + \
- sizeof(struct xfs_btree_sblock) + \
+ XFS_INOBT_BLOCK_LEN(mp) + \
(((index) - 1) * sizeof(xfs_inobt_rec_t))))
#define XFS_INOBT_KEY_ADDR(mp, block, index) \
((xfs_inobt_key_t *) \
((char *)(block) + \
- sizeof(struct xfs_btree_sblock) + \
+ XFS_INOBT_BLOCK_LEN(mp) + \
((index) - 1) * sizeof(xfs_inobt_key_t)))
#define XFS_INOBT_PTR_ADDR(mp, block, index, maxrecs) \
((xfs_inobt_ptr_t *) \
((char *)(block) + \
- sizeof(struct xfs_btree_sblock) + \
+ XFS_INOBT_BLOCK_LEN(mp) + \
(maxrecs) * sizeof(xfs_inobt_key_t) + \
((index) - 1) * sizeof(xfs_inobt_ptr_t)))