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Diffstat (limited to 'fs/xfs/xfs_ialloc_btree.h')
| -rw-r--r-- | fs/xfs/xfs_ialloc_btree.h | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h deleted file mode 100644 index 3ac36b7642e9..000000000000 --- a/fs/xfs/xfs_ialloc_btree.h +++ /dev/null @@ -1,115 +0,0 @@ -/* - * Copyright (c) 2000,2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef __XFS_IALLOC_BTREE_H__ -#define __XFS_IALLOC_BTREE_H__ - -/* - * Inode map on-disk structures - */ - -struct xfs_buf; -struct xfs_btree_cur; -struct xfs_mount; - -/* - * There is a btree for the inode map per allocation group. - */ -#define XFS_IBT_MAGIC 0x49414254 /* 'IABT' */ -#define XFS_IBT_CRC_MAGIC 0x49414233 /* 'IAB3' */ - -typedef __uint64_t 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_MASK(i) ((xfs_inofree_t)1 << (i)) - -static inline xfs_inofree_t xfs_inobt_maskn(int i, int n) -{ - return ((n >= XFS_INODES_PER_CHUNK ? 0 : XFS_INOBT_MASK(n)) - 1) << i; -} - -/* - * Data record structure - */ -typedef struct xfs_inobt_rec { - __be32 ir_startino; /* starting inode number */ - __be32 ir_freecount; /* count of free inodes (set bits) */ - __be64 ir_free; /* free inode mask */ -} xfs_inobt_rec_t; - -typedef struct xfs_inobt_rec_incore { - xfs_agino_t ir_startino; /* starting inode number */ - __int32_t ir_freecount; /* count of free inodes (set bits) */ - xfs_inofree_t ir_free; /* free inode mask */ -} xfs_inobt_rec_incore_t; - - -/* - * Key structure - */ -typedef struct xfs_inobt_key { - __be32 ir_startino; /* starting inode number */ -} xfs_inobt_key_t; - -/* btree pointer type */ -typedef __be32 xfs_inobt_ptr_t; - -/* - * block numbers in the AG. - */ -#define XFS_IBT_BLOCK(mp) ((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1)) -#define XFS_PREALLOC_BLOCKS(mp) ((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1)) - -/* - * Btree block header size depends on a superblock flag. - */ -#define XFS_INOBT_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_INOBT_REC_ADDR(mp, block, index) \ - ((xfs_inobt_rec_t *) \ - ((char *)(block) + \ - 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) + \ - 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) + \ - XFS_INOBT_BLOCK_LEN(mp) + \ - (maxrecs) * sizeof(xfs_inobt_key_t) + \ - ((index) - 1) * sizeof(xfs_inobt_ptr_t))) - -extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *, - struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t); -extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int); - -extern const struct xfs_buf_ops xfs_inobt_buf_ops; - -#endif /* __XFS_IALLOC_BTREE_H__ */ |
