From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- fs/xfs/libxfs/xfs_alloc_btree.h | 62 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 fs/xfs/libxfs/xfs_alloc_btree.h (limited to 'fs/xfs/libxfs/xfs_alloc_btree.h') diff --git a/fs/xfs/libxfs/xfs_alloc_btree.h b/fs/xfs/libxfs/xfs_alloc_btree.h new file mode 100644 index 000000000..a5b998e95 --- /dev/null +++ b/fs/xfs/libxfs/xfs_alloc_btree.h @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2000,2005 Silicon Graphics, Inc. + * All Rights Reserved. + */ +#ifndef __XFS_ALLOC_BTREE_H__ +#define __XFS_ALLOC_BTREE_H__ + +/* + * Freespace on-disk structures + */ + +struct xfs_buf; +struct xfs_btree_cur; +struct xfs_mount; +struct xbtree_afakeroot; + +/* + * Btree block header size depends on a superblock flag. + */ +#define XFS_ALLOC_BLOCK_LEN(mp) \ + (xfs_sb_version_hascrc(&((mp)->m_sb)) ? \ + XFS_BTREE_SBLOCK_CRC_LEN : 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_ALLOC_REC_ADDR(mp, block, index) \ + ((xfs_alloc_rec_t *) \ + ((char *)(block) + \ + XFS_ALLOC_BLOCK_LEN(mp) + \ + (((index) - 1) * sizeof(xfs_alloc_rec_t)))) + +#define XFS_ALLOC_KEY_ADDR(mp, block, index) \ + ((xfs_alloc_key_t *) \ + ((char *)(block) + \ + XFS_ALLOC_BLOCK_LEN(mp) + \ + ((index) - 1) * sizeof(xfs_alloc_key_t))) + +#define XFS_ALLOC_PTR_ADDR(mp, block, index, maxrecs) \ + ((xfs_alloc_ptr_t *) \ + ((char *)(block) + \ + XFS_ALLOC_BLOCK_LEN(mp) + \ + (maxrecs) * sizeof(xfs_alloc_key_t) + \ + ((index) - 1) * sizeof(xfs_alloc_ptr_t))) + +extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *, + struct xfs_trans *, struct xfs_buf *, + xfs_agnumber_t, xfs_btnum_t); +struct xfs_btree_cur *xfs_allocbt_stage_cursor(struct xfs_mount *mp, + struct xbtree_afakeroot *afake, xfs_agnumber_t agno, + xfs_btnum_t btnum); +extern int xfs_allocbt_maxrecs(struct xfs_mount *, int, int); +extern xfs_extlen_t xfs_allocbt_calc_size(struct xfs_mount *mp, + unsigned long long len); + +void xfs_allocbt_commit_staged_btree(struct xfs_btree_cur *cur, + struct xfs_trans *tp, struct xfs_buf *agbp); + +#endif /* __XFS_ALLOC_BTREE_H__ */ -- cgit v1.2.3