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) 2000,2005 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_INODE_ITEM_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #define	__XFS_INODE_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) struct xfs_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) struct xfs_bmbt_rec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) struct xfs_inode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) struct xfs_mount;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) struct xfs_inode_log_item {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	struct xfs_log_item	ili_item;	   /* common portion */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	struct xfs_inode	*ili_inode;	   /* inode ptr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	unsigned short		ili_lock_flags;	   /* inode lock flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	 * The ili_lock protects the interactions between the dirty state and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	 * the flush state of the inode log item. This allows us to do atomic
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	 * modifications of multiple state fields without having to hold a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	 * specific inode lock to serialise them.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	 * We need atomic changes between inode dirtying, inode flushing and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	 * inode completion, but these all hold different combinations of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	 * ILOCK and IFLUSHING and hence we need some other method of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	 * serialising updates to the flush state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	spinlock_t		ili_lock;	   /* flush state lock */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	unsigned int		ili_last_fields;   /* fields when flushed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	unsigned int		ili_fields;	   /* fields to be logged */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	unsigned int		ili_fsync_fields;  /* logged since last fsync */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	xfs_lsn_t		ili_flush_lsn;	   /* lsn at last flush */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	xfs_lsn_t		ili_last_lsn;	   /* lsn at last transaction */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static inline int xfs_inode_clean(struct xfs_inode *ip)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 	return !ip->i_itemp || !(ip->i_itemp->ili_fields & XFS_ILOG_ALL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) extern void xfs_inode_item_destroy(struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) extern void xfs_iflush_abort(struct xfs_inode *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 					 struct xfs_inode_log_format *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) extern struct kmem_zone	*xfs_ili_zone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #endif	/* __XFS_INODE_ITEM_H__ */