xfs_inode_item.h (1871B)
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 11struct xfs_buf; 12struct xfs_bmbt_rec; 13struct xfs_inode; 14struct xfs_mount; 15 16struct 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_csn_t ili_commit_seq; /* last transaction commit */ 37}; 38 39static 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 44extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *); 45extern void xfs_inode_item_destroy(struct xfs_inode *); 46extern void xfs_iflush_abort(struct xfs_inode *); 47extern void xfs_iflush_shutdown_abort(struct xfs_inode *); 48extern int xfs_inode_item_format_convert(xfs_log_iovec_t *, 49 struct xfs_inode_log_format *); 50 51extern struct kmem_cache *xfs_ili_cache; 52 53#endif /* __XFS_INODE_ITEM_H__ */