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