1// SPDX-License-Identifier: GPL-2.0 2/* 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 11/* buf log item flags */ 12#define XFS_BLI_HOLD 0x01 13#define XFS_BLI_DIRTY 0x02 14#define XFS_BLI_STALE 0x04 15#define XFS_BLI_LOGGED 0x08 16#define XFS_BLI_INODE_ALLOC_BUF 0x10 17#define XFS_BLI_STALE_INODE 0x20 18#define XFS_BLI_INODE_BUF 0x40 19#define XFS_BLI_ORDERED 0x80 20 21#define XFS_BLI_FLAGS \ 22 { XFS_BLI_HOLD, "HOLD" }, \ 23 { XFS_BLI_DIRTY, "DIRTY" }, \ 24 { XFS_BLI_STALE, "STALE" }, \ 25 { XFS_BLI_LOGGED, "LOGGED" }, \ 26 { XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \ 27 { XFS_BLI_STALE_INODE, "STALE_INODE" }, \ 28 { XFS_BLI_INODE_BUF, "INODE_BUF" }, \ 29 { XFS_BLI_ORDERED, "ORDERED" } 30 31 32struct xfs_buf; 33struct xfs_mount; 34struct xfs_buf_log_item; 35 36/* 37 * This is the in core log item structure used to track information 38 * needed to log buffers. It tracks how many times the lock has been 39 * locked, and which 128 byte chunks of the buffer are dirty. 40 */ 41struct xfs_buf_log_item { 42 struct xfs_log_item bli_item; /* common item structure */ 43 struct xfs_buf *bli_buf; /* real buffer pointer */ 44 unsigned int bli_flags; /* misc flags */ 45 unsigned int bli_recur; /* lock recursion count */ 46 atomic_t bli_refcount; /* cnt of tp refs */ 47 int bli_format_count; /* count of headers */ 48 struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ 49 struct xfs_buf_log_format __bli_format; /* embedded in-log header */ 50}; 51 52int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); 53void xfs_buf_item_done(struct xfs_buf *bp); 54void xfs_buf_item_relse(struct xfs_buf *); 55bool xfs_buf_item_put(struct xfs_buf_log_item *); 56void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint); 57bool xfs_buf_item_dirty_format(struct xfs_buf_log_item *); 58void xfs_buf_inode_iodone(struct xfs_buf *); 59void xfs_buf_inode_io_fail(struct xfs_buf *bp); 60#ifdef CONFIG_XFS_QUOTA 61void xfs_buf_dquot_iodone(struct xfs_buf *); 62void xfs_buf_dquot_io_fail(struct xfs_buf *bp); 63#else 64static inline void xfs_buf_dquot_iodone(struct xfs_buf *bp) 65{ 66} 67static inline void xfs_buf_dquot_io_fail(struct xfs_buf *bp) 68{ 69} 70#endif /* CONFIG_XFS_QUOTA */ 71void xfs_buf_iodone(struct xfs_buf *); 72bool xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec); 73 74extern kmem_zone_t *xfs_buf_item_zone; 75 76#endif /* __XFS_BUF_ITEM_H__ */ 77