54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#ifndef __XFS_INODE_ITEM_H__
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#define __XFS_INODE_ITEM_H__
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/* kernel only definitions */
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struct xfs_buf;
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struct xfs_bmbt_rec;
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struct xfs_inode;
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struct xfs_mount;
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struct xfs_inode_log_item {
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struct xfs_log_item ili_item; /* common portion */
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struct xfs_inode *ili_inode; /* inode ptr */
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unsigned short ili_lock_flags; /* inode lock flags */
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/*
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* The ili_lock protects the interactions between the dirty state and
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* the flush state of the inode log item. This allows us to do atomic
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* modifications of multiple state fields without having to hold a
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* specific inode lock to serialise them.
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*
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* We need atomic changes between inode dirtying, inode flushing and
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* inode completion, but these all hold different combinations of
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* ILOCK and IFLUSHING and hence we need some other method of
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* serialising updates to the flush state.
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*/
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spinlock_t ili_lock; /* flush state lock */
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unsigned int ili_last_fields; /* fields when flushed */
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unsigned int ili_fields; /* fields to be logged */
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unsigned int ili_fsync_fields; /* logged since last fsync */
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xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
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xfs_csn_t ili_commit_seq; /* last transaction commit */
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};
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static inline int xfs_inode_clean(struct xfs_inode *ip)
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{
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return !ip->i_itemp || !(ip->i_itemp->ili_fields & XFS_ILOG_ALL);
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}
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extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
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extern void xfs_inode_item_destroy(struct xfs_inode *);
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extern void xfs_iflush_abort(struct xfs_inode *);
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extern void xfs_iflush_shutdown_abort(struct xfs_inode *);
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extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
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struct xfs_inode_log_format *);
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extern struct kmem_cache *xfs_ili_cache;
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#endif /* __XFS_INODE_ITEM_H__ */
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