1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2000,2005 Silicon Graphics, Inc. 4 * All Rights Reserved. 5 */ 6 #ifndef __XFS_INODE_ITEM_H__ 7 #define __XFS_INODE_ITEM_H__ 8 9 /* kernel only definitions */ 10 11 struct xfs_buf; 12 struct xfs_bmbt_rec; 13 struct xfs_inode; 14 struct xfs_mount; 15 16 struct xfs_inode_log_item { 17 struct xfs_log_item ili_item; /* common portion */ 18 struct xfs_inode *ili_inode; /* inode ptr */ 19 unsigned short ili_lock_flags; /* inode lock flags */ 20 /* 21 * The ili_lock protects the interactions between the dirty state and 22 * the flush state of the inode log item. This allows us to do atomic 23 * modifications of multiple state fields without having to hold a 24 * specific inode lock to serialise them. 25 * 26 * We need atomic changes between inode dirtying, inode flushing and 27 * inode completion, but these all hold different combinations of 28 * ILOCK and IFLUSHING and hence we need some other method of 29 * serialising updates to the flush state. 30 */ 31 spinlock_t ili_lock; /* flush state lock */ 32 unsigned int ili_last_fields; /* fields when flushed */ 33 unsigned int ili_fields; /* fields to be logged */ 34 unsigned int ili_fsync_fields; /* logged since last fsync */ 35 xfs_lsn_t ili_flush_lsn; /* lsn at last flush */ 36 xfs_lsn_t ili_last_lsn; /* lsn at last transaction */ 37 }; 38 39 static inline int xfs_inode_clean(struct xfs_inode *ip) 40 { 41 return !ip->i_itemp || !(ip->i_itemp->ili_fields & XFS_ILOG_ALL); 42 } 43 44 extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); 45 extern void xfs_inode_item_destroy(struct xfs_inode *); 46 extern void xfs_iflush_abort(struct xfs_inode *); 47 extern int xfs_inode_item_format_convert(xfs_log_iovec_t *, 48 struct xfs_inode_log_format *); 49 50 extern struct kmem_zone *xfs_ili_zone; 51 52 #endif /* __XFS_INODE_ITEM_H__ */ 53