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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/xfs/xfs_alloc_btree.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/xfs/xfs_alloc_btree.h')
-rw-r--r--ANDROID_3.4.5/fs/xfs/xfs_alloc_btree.h110
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diff --git a/ANDROID_3.4.5/fs/xfs/xfs_alloc_btree.h b/ANDROID_3.4.5/fs/xfs/xfs_alloc_btree.h
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--- a/ANDROID_3.4.5/fs/xfs/xfs_alloc_btree.h
+++ /dev/null
@@ -1,110 +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_ALLOC_BTREE_H__
-#define __XFS_ALLOC_BTREE_H__
-
-/*
- * Freespace on-disk structures
- */
-
-struct xfs_buf;
-struct xfs_btree_cur;
-struct xfs_mount;
-
-/*
- * There are two on-disk btrees, one sorted by blockno and one sorted
- * by blockcount and blockno. All blocks look the same to make the code
- * simpler; if we have time later, we'll make the optimizations.
- */
-#define XFS_ABTB_MAGIC 0x41425442 /* 'ABTB' for bno tree */
-#define XFS_ABTC_MAGIC 0x41425443 /* 'ABTC' for cnt tree */
-
-/*
- * Data record/key structure
- */
-typedef struct xfs_alloc_rec {
- __be32 ar_startblock; /* starting block number */
- __be32 ar_blockcount; /* count of free blocks */
-} xfs_alloc_rec_t, xfs_alloc_key_t;
-
-typedef struct xfs_alloc_rec_incore {
- xfs_agblock_t ar_startblock; /* starting block number */
- xfs_extlen_t ar_blockcount; /* count of free blocks */
-} xfs_alloc_rec_incore_t;
-
-/* btree pointer type */
-typedef __be32 xfs_alloc_ptr_t;
-
-/*
- * Minimum and maximum blocksize and sectorsize.
- * The blocksize upper limit is pretty much arbitrary.
- * The sectorsize upper limit is due to sizeof(sb_sectsize).
- */
-#define XFS_MIN_BLOCKSIZE_LOG 9 /* i.e. 512 bytes */
-#define XFS_MAX_BLOCKSIZE_LOG 16 /* i.e. 65536 bytes */
-#define XFS_MIN_BLOCKSIZE (1 << XFS_MIN_BLOCKSIZE_LOG)
-#define XFS_MAX_BLOCKSIZE (1 << XFS_MAX_BLOCKSIZE_LOG)
-#define XFS_MIN_SECTORSIZE_LOG 9 /* i.e. 512 bytes */
-#define XFS_MAX_SECTORSIZE_LOG 15 /* i.e. 32768 bytes */
-#define XFS_MIN_SECTORSIZE (1 << XFS_MIN_SECTORSIZE_LOG)
-#define XFS_MAX_SECTORSIZE (1 << XFS_MAX_SECTORSIZE_LOG)
-
-/*
- * Block numbers in the AG:
- * SB is sector 0, AGF is sector 1, AGI is sector 2, AGFL is sector 3.
- */
-#define XFS_BNO_BLOCK(mp) ((xfs_agblock_t)(XFS_AGFL_BLOCK(mp) + 1))
-#define XFS_CNT_BLOCK(mp) ((xfs_agblock_t)(XFS_BNO_BLOCK(mp) + 1))
-
-/*
- * Btree block header size depends on a superblock flag.
- *
- * (not quite yet, but soon)
- */
-#define XFS_ALLOC_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_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);
-extern int xfs_allocbt_maxrecs(struct xfs_mount *, int, int);
-
-#endif /* __XFS_ALLOC_BTREE_H__ */