Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * All Rights Reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #ifndef	__XFS_BUF_ITEM_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define	__XFS_BUF_ITEM_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) /* kernel only definitions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) /* buf log item flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define	XFS_BLI_HOLD		0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define	XFS_BLI_DIRTY		0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define	XFS_BLI_STALE		0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define	XFS_BLI_LOGGED		0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define	XFS_BLI_INODE_ALLOC_BUF	0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define XFS_BLI_STALE_INODE	0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define	XFS_BLI_INODE_BUF	0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define	XFS_BLI_ORDERED		0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #define XFS_BLI_FLAGS \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	{ XFS_BLI_HOLD,		"HOLD" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	{ XFS_BLI_DIRTY,	"DIRTY" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	{ XFS_BLI_STALE,	"STALE" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	{ XFS_BLI_LOGGED,	"LOGGED" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	{ XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	{ XFS_BLI_STALE_INODE,	"STALE_INODE" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	{ XFS_BLI_INODE_BUF,	"INODE_BUF" }, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	{ XFS_BLI_ORDERED,	"ORDERED" }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct xfs_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) struct xfs_mount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) struct xfs_buf_log_item;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  * This is the in core log item structure used to track information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)  * needed to log buffers.  It tracks how many times the lock has been
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  * locked, and which 128 byte chunks of the buffer are dirty.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) struct xfs_buf_log_item {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	struct xfs_log_item	bli_item;	/* common item structure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	struct xfs_buf		*bli_buf;	/* real buffer pointer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	unsigned int		bli_flags;	/* misc flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	unsigned int		bli_recur;	/* lock recursion count */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	atomic_t		bli_refcount;	/* cnt of tp refs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	int			bli_format_count;	/* count of headers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	struct xfs_buf_log_format *bli_formats;	/* array of in-log header ptrs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	struct xfs_buf_log_format __bli_format;	/* embedded in-log header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int	xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) void	xfs_buf_item_done(struct xfs_buf *bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) void	xfs_buf_item_relse(struct xfs_buf *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) bool	xfs_buf_item_put(struct xfs_buf_log_item *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) void	xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) bool	xfs_buf_item_dirty_format(struct xfs_buf_log_item *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) void	xfs_buf_inode_iodone(struct xfs_buf *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) void	xfs_buf_inode_io_fail(struct xfs_buf *bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #ifdef CONFIG_XFS_QUOTA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) void	xfs_buf_dquot_iodone(struct xfs_buf *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) void	xfs_buf_dquot_io_fail(struct xfs_buf *bp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static inline void xfs_buf_dquot_iodone(struct xfs_buf *bp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static inline void xfs_buf_dquot_io_fail(struct xfs_buf *bp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #endif /* CONFIG_XFS_QUOTA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) void	xfs_buf_iodone(struct xfs_buf *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) bool	xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) extern kmem_zone_t	*xfs_buf_item_zone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #endif	/* __XFS_BUF_ITEM_H__ */