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1// SPDX-License-Identifier: GPL-2.02/*3 * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.4 * All Rights Reserved.5 */6#ifndef __XFS_BUF_ITEM_H__7#define __XFS_BUF_ITEM_H__8 9/* kernel only definitions */10 11struct xfs_buf;12struct xfs_mount;13 14/* buf log item flags */15#define XFS_BLI_HOLD (1u << 0)16#define XFS_BLI_DIRTY (1u << 1)17#define XFS_BLI_STALE (1u << 2)18#define XFS_BLI_LOGGED (1u << 3)19#define XFS_BLI_INODE_ALLOC_BUF (1u << 4)20#define XFS_BLI_STALE_INODE (1u << 5)21#define XFS_BLI_INODE_BUF (1u << 6)22#define XFS_BLI_ORDERED (1u << 7)23 24#define XFS_BLI_FLAGS \25 { XFS_BLI_HOLD, "HOLD" }, \26 { XFS_BLI_DIRTY, "DIRTY" }, \27 { XFS_BLI_STALE, "STALE" }, \28 { XFS_BLI_LOGGED, "LOGGED" }, \29 { XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \30 { XFS_BLI_STALE_INODE, "STALE_INODE" }, \31 { XFS_BLI_INODE_BUF, "INODE_BUF" }, \32 { XFS_BLI_ORDERED, "ORDERED" }33 34/*35 * This is the in core log item structure used to track information36 * needed to log buffers. It tracks how many times the lock has been37 * locked, and which 128 byte chunks of the buffer are dirty.38 */39struct xfs_buf_log_item {40 struct xfs_log_item bli_item; /* common item structure */41 struct xfs_buf *bli_buf; /* real buffer pointer */42 unsigned int bli_flags; /* misc flags */43 unsigned int bli_recur; /* lock recursion count */44 atomic_t bli_refcount; /* cnt of tp refs */45 int bli_format_count; /* count of headers */46 struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */47 struct xfs_buf_log_format __bli_format; /* embedded in-log header */48};49 50int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);51void xfs_buf_item_done(struct xfs_buf *bp);52void xfs_buf_item_relse(struct xfs_buf *);53bool xfs_buf_item_put(struct xfs_buf_log_item *);54void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint);55bool xfs_buf_item_dirty_format(struct xfs_buf_log_item *);56void xfs_buf_inode_iodone(struct xfs_buf *);57void xfs_buf_inode_io_fail(struct xfs_buf *bp);58#ifdef CONFIG_XFS_QUOTA59void xfs_buf_dquot_iodone(struct xfs_buf *);60void xfs_buf_dquot_io_fail(struct xfs_buf *bp);61#else62static inline void xfs_buf_dquot_iodone(struct xfs_buf *bp)63{64}65static inline void xfs_buf_dquot_io_fail(struct xfs_buf *bp)66{67}68#endif /* CONFIG_XFS_QUOTA */69void xfs_buf_iodone(struct xfs_buf *);70bool xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec);71 72extern struct kmem_cache *xfs_buf_item_cache;73 74#endif /* __XFS_BUF_ITEM_H__ */75