summaryrefslogtreecommitdiffstats
path: root/fs/xfs/xfs_bmap_btree.h
diff options
context:
space:
mode:
authorDave Chinner <dchinner@redhat.com>2013-10-23 10:51:50 +1100
committerBen Myers <bpm@sgi.com>2013-10-23 16:28:49 -0500
commita4fbe6ab1e7abecf42b75e9c73701ed33b4ab03b (patch)
tree24753fd80e3ee2e8038869858d108db4c078a4b0 /fs/xfs/xfs_bmap_btree.h
parent239880ef6454ccff2ba8d762c3f86e8278f0ce1c (diff)
downloadlinux-a4fbe6ab1e7abecf42b75e9c73701ed33b4ab03b.tar.bz2
xfs: decouple inode and bmap btree header files
Currently the xfs_inode.h header has a dependency on the definition of the BMAP btree records as the inode fork includes an array of xfs_bmbt_rec_host_t objects in it's definition. Move all the btree format definitions from xfs_btree.h, xfs_bmap_btree.h, xfs_alloc_btree.h and xfs_ialloc_btree.h to xfs_format.h to continue the process of centralising the on-disk format definitions. With this done, the xfs inode definitions are no longer dependent on btree header files. The enables a massive culling of unnecessary includes, with close to 200 #include directives removed from the XFS kernel code base. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_bmap_btree.h')
-rw-r--r--fs/xfs/xfs_bmap_btree.h103
1 files changed, 0 insertions, 103 deletions
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h
index e2b0768a89ba..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) \