--- zzzz-none-000/linux-3.10.107/fs/xfs/xfs_buf_item.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/fs/xfs/xfs_buf_item.h	2021-02-04 17:41:59.000000000 +0000
@@ -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)
+/* kernel only definitions */
 
-/*
- * 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)
-
-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
@@ -120,6 +28,7 @@
 #define	XFS_BLI_INODE_ALLOC_BUF	0x10
 #define XFS_BLI_STALE_INODE	0x20
 #define	XFS_BLI_INODE_BUF	0x40
+#define	XFS_BLI_ORDERED		0x80
 
 #define XFS_BLI_FLAGS \
 	{ XFS_BLI_HOLD,		"HOLD" }, \
@@ -128,10 +37,9 @@
 	{ XFS_BLI_LOGGED,	"LOGGED" }, \
 	{ XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \
 	{ XFS_BLI_STALE_INODE,	"STALE_INODE" }, \
-	{ XFS_BLI_INODE_BUF,	"INODE_BUF" }
-
+	{ XFS_BLI_INODE_BUF,	"INODE_BUF" }, \
+	{ XFS_BLI_ORDERED,	"ORDERED" }
 
-#ifdef __KERNEL__
 
 struct xfs_buf;
 struct xfs_mount;
@@ -153,7 +61,7 @@
 	struct xfs_buf_log_format __bli_format;	/* embedded in-log header */
 } xfs_buf_log_item_t;
 
-void	xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
+int	xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
 void	xfs_buf_item_relse(struct xfs_buf *);
 void	xfs_buf_item_log(xfs_buf_log_item_t *, uint, uint);
 uint	xfs_buf_item_dirty(xfs_buf_log_item_t *);
@@ -163,10 +71,6 @@
 void	xfs_buf_iodone_callbacks(struct xfs_buf *);
 void	xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
 
-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__ */