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author | James Morris <james.l.morris@oracle.com> | 2014-01-06 15:23:01 +0400 |
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committer | James Morris <james.l.morris@oracle.com> | 2014-01-06 15:23:01 +0400 |
commit | 38fd2c202a3d82bc12430bce5789fa2c2a406f71 (patch) | |
tree | a73513dbb015155f5236b391709b9083916b3136 /fs/xfs/xfs_bmap_btree.h | |
parent | dcf4e392867bf98d50ad108ed7c2bfb941e8c33d (diff) | |
parent | d6e0a2dd12f4067a5bcefb8bbd8ddbeff800afbc (diff) | |
download | linux-38fd2c202a3d82bc12430bce5789fa2c2a406f71.tar.xz |
Merge to v3.13-rc7 for prerequisite changes in the Xen code for TPM
Diffstat (limited to 'fs/xfs/xfs_bmap_btree.h')
-rw-r--r-- | fs/xfs/xfs_bmap_btree.h | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h index e367461a638e..6e42e1e50b89 100644 --- a/fs/xfs/xfs_bmap_btree.h +++ b/fs/xfs/xfs_bmap_btree.h @@ -18,9 +18,6 @@ #ifndef __XFS_BMAP_BTREE_H__ #define __XFS_BMAP_BTREE_H__ -#define XFS_BMAP_MAGIC 0x424d4150 /* 'BMAP' */ -#define XFS_BMAP_CRC_MAGIC 0x424d4133 /* 'BMA3' */ - struct xfs_btree_cur; struct xfs_btree_block; struct xfs_mount; @@ -28,85 +25,6 @@ struct xfs_inode; struct xfs_trans; /* - * Bmap root header, on-disk form only. - */ -typedef struct xfs_bmdr_block { - __be16 bb_level; /* 0 is a leaf */ - __be16 bb_numrecs; /* current # of data records */ -} xfs_bmdr_block_t; - -/* - * Bmap btree record and extent descriptor. - * l0:63 is an extent flag (value 1 indicates non-normal). - * l0:9-62 are startoff. - * l0:0-8 and l1:21-63 are startblock. - * l1:0-20 are blockcount. - */ -#define BMBT_EXNTFLAG_BITLEN 1 -#define BMBT_STARTOFF_BITLEN 54 -#define BMBT_STARTBLOCK_BITLEN 52 -#define BMBT_BLOCKCOUNT_BITLEN 21 - -typedef struct xfs_bmbt_rec { - __be64 l0, l1; -} xfs_bmbt_rec_t; - -typedef __uint64_t xfs_bmbt_rec_base_t; /* use this for casts */ -typedef xfs_bmbt_rec_t xfs_bmdr_rec_t; - -typedef struct xfs_bmbt_rec_host { - __uint64_t l0, l1; -} xfs_bmbt_rec_host_t; - -/* - * Values and macros for delayed-allocation startblock fields. - */ -#define STARTBLOCKVALBITS 17 -#define STARTBLOCKMASKBITS (15 + XFS_BIG_BLKNOS * 20) -#define DSTARTBLOCKMASKBITS (15 + 20) -#define STARTBLOCKMASK \ - (((((xfs_fsblock_t)1) << STARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS) -#define DSTARTBLOCKMASK \ - (((((xfs_dfsbno_t)1) << DSTARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS) - -static inline int isnullstartblock(xfs_fsblock_t x) -{ - return ((x) & STARTBLOCKMASK) == STARTBLOCKMASK; -} - -static inline int isnulldstartblock(xfs_dfsbno_t x) -{ - return ((x) & DSTARTBLOCKMASK) == DSTARTBLOCKMASK; -} - -static inline xfs_fsblock_t nullstartblock(int k) -{ - ASSERT(k < (1 << STARTBLOCKVALBITS)); - return STARTBLOCKMASK | (k); -} - -static inline xfs_filblks_t startblockval(xfs_fsblock_t x) -{ - return (xfs_filblks_t)((x) & ~STARTBLOCKMASK); -} - -/* - * Possible extent formats. - */ -typedef enum { - XFS_EXTFMT_NOSTATE = 0, - XFS_EXTFMT_HASSTATE -} xfs_exntfmt_t; - -/* - * Possible extent states. - */ -typedef enum { - XFS_EXT_NORM, XFS_EXT_UNWRITTEN, - XFS_EXT_DMAPI_OFFLINE, XFS_EXT_INVALID -} xfs_exntst_t; - -/* * Extent state and extent format macros. */ #define XFS_EXTFMT_INODE(x) \ @@ -115,27 +33,6 @@ typedef enum { #define ISUNWRITTEN(x) ((x)->br_state == XFS_EXT_UNWRITTEN) /* - * Incore version of above. - */ -typedef struct xfs_bmbt_irec -{ - xfs_fileoff_t br_startoff; /* starting file offset */ - xfs_fsblock_t br_startblock; /* starting block number */ - xfs_filblks_t br_blockcount; /* number of blocks */ - xfs_exntst_t br_state; /* extent state */ -} xfs_bmbt_irec_t; - -/* - * Key structure for non-leaf levels of the tree. - */ -typedef struct xfs_bmbt_key { - __be64 br_startoff; /* starting file offset */ -} xfs_bmbt_key_t, xfs_bmdr_key_t; - -/* btree pointer type */ -typedef __be64 xfs_bmbt_ptr_t, xfs_bmdr_ptr_t; - -/* * Btree block header size depends on a superblock flag. */ #define XFS_BMBT_BLOCK_LEN(mp) \ @@ -243,6 +140,4 @@ extern int xfs_bmbt_change_owner(struct xfs_trans *tp, struct xfs_inode *ip, extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *, struct xfs_trans *, struct xfs_inode *, int); -extern const struct xfs_buf_ops xfs_bmbt_buf_ops; - #endif /* __XFS_BMAP_BTREE_H__ */ |