xfs: split out buf log item format definitions

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 3 insertions, 97 deletions

diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index 0f1c247dc680..db6371087fe8 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -18,101 +18,9 @@
 #ifndef __XFS_BUF_ITEM_H__
 #define __XFS_BUF_ITEM_H__
 
-extern kmem_zone_t      *xfs_buf_item_zone;
-
-/*
- * This flag indicates that the buffer contains on disk inodes
- * and requires special recovery handling.
- */
-#define XFS_BLF_INODE_BUF       (1<<0)
-/*
- * This flag indicates that the buffer should not be replayed
- * during recovery because its blocks are being freed.
- */
-#define XFS_BLF_CANCEL          (1<<1)
-
-/*
- * This flag indicates that the buffer contains on disk
- * user or group dquots and may require special recovery handling.
- */
-#define XFS_BLF_UDQUOT_BUF      (1<<2)
-#define XFS_BLF_PDQUOT_BUF      (1<<3)
-#define XFS_BLF_GDQUOT_BUF      (1<<4)
-
-#define XFS_BLF_CHUNK           128
-#define XFS_BLF_SHIFT           7
-#define BIT_TO_WORD_SHIFT       5
-#define NBWORD                  (NBBY * sizeof(unsigned int))
-
-/*
- * This is the structure used to lay out a buf log item in the
- * log.  The data map describes which 128 byte chunks of the buffer
- * have been logged.
- */
-#define XFS_BLF_DATAMAP_SIZE    ((XFS_MAX_BLOCKSIZE / XFS_BLF_CHUNK) / NBWORD)
+/* kernel only definitions */
 
-typedef struct xfs_buf_log_format {
-        unsigned short  blf_type;       /* buf log item type indicator */
-        unsigned short  blf_size;       /* size of this item */
-        ushort          blf_flags;      /* misc state */
-        ushort          blf_len;        /* number of blocks in this buf */
-        __int64_t       blf_blkno;      /* starting blkno of this buf */
-        unsigned int    blf_map_size;   /* used size of data bitmap in words */
-        unsigned int    blf_data_map[XFS_BLF_DATAMAP_SIZE]; /* dirty bitmap */
-} xfs_buf_log_format_t;
-
-/*
- * All buffers now need to tell recovery where the magic number
- * is so that it can verify and calculate the CRCs on the buffer correctly
- * once the changes have been replayed into the buffer.
- *
- * The type value is held in the upper 5 bits of the blf_flags field, which is
- * an unsigned 16 bit field. Hence we need to shift it 11 bits up and down.
- */
-#define XFS_BLFT_BITS   5
-#define XFS_BLFT_SHIFT  11
-#define XFS_BLFT_MASK   (((1 << XFS_BLFT_BITS) - 1) << XFS_BLFT_SHIFT)
-
-enum xfs_blft {
-        XFS_BLFT_UNKNOWN_BUF = 0,
-        XFS_BLFT_UDQUOT_BUF,
-        XFS_BLFT_PDQUOT_BUF,
-        XFS_BLFT_GDQUOT_BUF,
-        XFS_BLFT_BTREE_BUF,
-        XFS_BLFT_AGF_BUF,
-        XFS_BLFT_AGFL_BUF,
-        XFS_BLFT_AGI_BUF,
-        XFS_BLFT_DINO_BUF,
-        XFS_BLFT_SYMLINK_BUF,
-        XFS_BLFT_DIR_BLOCK_BUF,
-        XFS_BLFT_DIR_DATA_BUF,
-        XFS_BLFT_DIR_FREE_BUF,
-        XFS_BLFT_DIR_LEAF1_BUF,
-        XFS_BLFT_DIR_LEAFN_BUF,
-        XFS_BLFT_DA_NODE_BUF,
-        XFS_BLFT_ATTR_LEAF_BUF,
-        XFS_BLFT_ATTR_RMT_BUF,
-        XFS_BLFT_SB_BUF,
-        XFS_BLFT_MAX_BUF = (1 << XFS_BLFT_BITS),
-};
-
-static inline void
-xfs_blft_to_flags(struct xfs_buf_log_format *blf, enum xfs_blft type)
-{
-        ASSERT(type > XFS_BLFT_UNKNOWN_BUF && type < XFS_BLFT_MAX_BUF);
-        blf->blf_flags &= ~XFS_BLFT_MASK;
-        blf->blf_flags |= ((type << XFS_BLFT_SHIFT) & XFS_BLFT_MASK);
-}
-
-static inline __uint16_t
-xfs_blft_from_flags(struct xfs_buf_log_format *blf)
-{
-        return (blf->blf_flags & XFS_BLFT_MASK) >> XFS_BLFT_SHIFT;
-}
-
-/*
- * buf log item flags
- */
+/* buf log item flags */
 #define XFS_BLI_HOLD            0x01
 #define XFS_BLI_DIRTY           0x02
 #define XFS_BLI_STALE           0x04
@@ -133,8 +41,6 @@ xfs_blft_from_flags(struct xfs_buf_log_format *blf)
         { XFS_BLI_ORDERED,      "ORDERED" }
 
 
-#ifdef __KERNEL__
-
 struct xfs_buf;
 struct xfs_mount;
 struct xfs_buf_log_item;
@@ -169,6 +75,6 @@ void	xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
                                enum xfs_blft);
 void    xfs_trans_buf_copy_type(struct xfs_buf *dst_bp, struct xfs_buf *src_bp);
 
-#endif  /* __KERNEL__ */
+extern kmem_zone_t      *xfs_buf_item_zone;
 
 #endif  /* __XFS_BUF_ITEM_H__ */