1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Copyright (c) 2000,2005 Silicon Graphics, Inc. 4*4882a593Smuzhiyun * All Rights Reserved. 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun #ifndef __XFS_IALLOC_BTREE_H__ 7*4882a593Smuzhiyun #define __XFS_IALLOC_BTREE_H__ 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun /* 10*4882a593Smuzhiyun * Inode map on-disk structures 11*4882a593Smuzhiyun */ 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun struct xfs_buf; 14*4882a593Smuzhiyun struct xfs_btree_cur; 15*4882a593Smuzhiyun struct xfs_mount; 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* 18*4882a593Smuzhiyun * Btree block header size depends on a superblock flag. 19*4882a593Smuzhiyun */ 20*4882a593Smuzhiyun #define XFS_INOBT_BLOCK_LEN(mp) \ 21*4882a593Smuzhiyun (xfs_sb_version_hascrc(&((mp)->m_sb)) ? \ 22*4882a593Smuzhiyun XFS_BTREE_SBLOCK_CRC_LEN : XFS_BTREE_SBLOCK_LEN) 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun /* 25*4882a593Smuzhiyun * Record, key, and pointer address macros for btree blocks. 26*4882a593Smuzhiyun * 27*4882a593Smuzhiyun * (note that some of these may appear unused, but they are used in userspace) 28*4882a593Smuzhiyun */ 29*4882a593Smuzhiyun #define XFS_INOBT_REC_ADDR(mp, block, index) \ 30*4882a593Smuzhiyun ((xfs_inobt_rec_t *) \ 31*4882a593Smuzhiyun ((char *)(block) + \ 32*4882a593Smuzhiyun XFS_INOBT_BLOCK_LEN(mp) + \ 33*4882a593Smuzhiyun (((index) - 1) * sizeof(xfs_inobt_rec_t)))) 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun #define XFS_INOBT_KEY_ADDR(mp, block, index) \ 36*4882a593Smuzhiyun ((xfs_inobt_key_t *) \ 37*4882a593Smuzhiyun ((char *)(block) + \ 38*4882a593Smuzhiyun XFS_INOBT_BLOCK_LEN(mp) + \ 39*4882a593Smuzhiyun ((index) - 1) * sizeof(xfs_inobt_key_t))) 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #define XFS_INOBT_PTR_ADDR(mp, block, index, maxrecs) \ 42*4882a593Smuzhiyun ((xfs_inobt_ptr_t *) \ 43*4882a593Smuzhiyun ((char *)(block) + \ 44*4882a593Smuzhiyun XFS_INOBT_BLOCK_LEN(mp) + \ 45*4882a593Smuzhiyun (maxrecs) * sizeof(xfs_inobt_key_t) + \ 46*4882a593Smuzhiyun ((index) - 1) * sizeof(xfs_inobt_ptr_t))) 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *, 49*4882a593Smuzhiyun struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t, 50*4882a593Smuzhiyun xfs_btnum_t); 51*4882a593Smuzhiyun struct xfs_btree_cur *xfs_inobt_stage_cursor(struct xfs_mount *mp, 52*4882a593Smuzhiyun struct xbtree_afakeroot *afake, xfs_agnumber_t agno, 53*4882a593Smuzhiyun xfs_btnum_t btnum); 54*4882a593Smuzhiyun extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int); 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun /* ir_holemask to inode allocation bitmap conversion */ 57*4882a593Smuzhiyun uint64_t xfs_inobt_irec_to_allocmask(struct xfs_inobt_rec_incore *); 58*4882a593Smuzhiyun 59*4882a593Smuzhiyun #if defined(DEBUG) || defined(XFS_WARN) 60*4882a593Smuzhiyun int xfs_inobt_rec_check_count(struct xfs_mount *, 61*4882a593Smuzhiyun struct xfs_inobt_rec_incore *); 62*4882a593Smuzhiyun #else 63*4882a593Smuzhiyun #define xfs_inobt_rec_check_count(mp, rec) 0 64*4882a593Smuzhiyun #endif /* DEBUG */ 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun int xfs_finobt_calc_reserves(struct xfs_mount *mp, struct xfs_trans *tp, 67*4882a593Smuzhiyun xfs_agnumber_t agno, xfs_extlen_t *ask, xfs_extlen_t *used); 68*4882a593Smuzhiyun extern xfs_extlen_t xfs_iallocbt_calc_size(struct xfs_mount *mp, 69*4882a593Smuzhiyun unsigned long long len); 70*4882a593Smuzhiyun int xfs_inobt_cur(struct xfs_mount *mp, struct xfs_trans *tp, 71*4882a593Smuzhiyun xfs_agnumber_t agno, xfs_btnum_t btnum, 72*4882a593Smuzhiyun struct xfs_btree_cur **curpp, struct xfs_buf **agi_bpp); 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun void xfs_inobt_commit_staged_btree(struct xfs_btree_cur *cur, 75*4882a593Smuzhiyun struct xfs_trans *tp, struct xfs_buf *agbp); 76*4882a593Smuzhiyun 77*4882a593Smuzhiyun #endif /* __XFS_IALLOC_BTREE_H__ */ 78