struct xfs_buf;
struct xfs_dinode;
+struct xfs_imap;
struct xfs_mount;
struct xfs_trans;
#define XFS_IALLOC_BLOCKS(mp) (mp)->m_ialloc_blks
/*
- * For small block file systems, move inodes in clusters of this size.
- * When we don't have a lot of memory, however, we go a bit smaller
- * to reduce the number of AGI and ialloc btree blocks we need to keep
- * around for xfs_dilocate(). We choose which one to use in
- * xfs_mount_int().
+ * Move inodes in clusters of this size.
*/
#define XFS_INODE_BIG_CLUSTER_SIZE 8192
-#define XFS_INODE_SMALL_CLUSTER_SIZE 4096
#define XFS_INODE_CLUSTER_SIZE(mp) (mp)->m_inode_cluster_size
/*
}
-#ifdef __KERNEL__
/*
* Allocate an inode on disk.
* Mode is used to tell whether the new inode will need space, and whether
xfs_ino_t *first_ino); /* first inode in deleted cluster */
/*
- * Return the location of the inode in bno/len/off,
- * for mapping it into a buffer.
+ * Return the location of the inode in imap, for mapping it into a buffer.
*/
int
-xfs_dilocate(
+xfs_imap(
struct xfs_mount *mp, /* file system mount structure */
struct xfs_trans *tp, /* transaction pointer */
xfs_ino_t ino, /* inode to locate */
- xfs_fsblock_t *bno, /* output: block containing inode */
- int *len, /* output: num blocks in cluster*/
- int *off, /* output: index in block of inode */
+ struct xfs_imap *imap, /* location map structure */
uint flags); /* flags for inode btree lookup */
/*
xfs_agnumber_t agno, /* allocation group number */
struct xfs_buf **bpp); /* allocation group hdr buf */
-#endif /* __KERNEL__ */
+/*
+ * Read in the allocation group header to initialise the per-ag data
+ * in the mount structure
+ */
+int
+xfs_ialloc_pagi_init(
+ struct xfs_mount *mp, /* file system mount structure */
+ struct xfs_trans *tp, /* transaction pointer */
+ xfs_agnumber_t agno); /* allocation group number */
+
+/*
+ * Lookup the first record greater than or equal to ino
+ * in the btree given by cur.
+ */
+int xfs_inobt_lookup_ge(struct xfs_btree_cur *cur, xfs_agino_t ino,
+ __int32_t fcnt, xfs_inofree_t free, int *stat);
+
+/*
+ * Lookup the first record less than or equal to ino
+ * in the btree given by cur.
+ */
+int xfs_inobt_lookup_le(struct xfs_btree_cur *cur, xfs_agino_t ino,
+ __int32_t fcnt, xfs_inofree_t free, int *stat);
+
+/*
+ * Get the data from the pointed-to record.
+ */
+extern int xfs_inobt_get_rec(struct xfs_btree_cur *cur, xfs_agino_t *ino,
+ __int32_t *fcnt, xfs_inofree_t *free, int *stat);
#endif /* __XFS_IALLOC_H__ */