10b61f8a4SDave Chinner // SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds /* 37b718769SNathan Scott * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc. 47b718769SNathan Scott * All Rights Reserved. 51da177e4SLinus Torvalds */ 61da177e4SLinus Torvalds #ifndef __XFS_BUF_ITEM_H__ 71da177e4SLinus Torvalds #define __XFS_BUF_ITEM_H__ 81da177e4SLinus Torvalds 9a8da0da2SDave Chinner /* kernel only definitions */ 10a8272ce0SDavid Chinner 11*581b4484SDave Chinner struct xfs_buf; 12*581b4484SDave Chinner struct xfs_mount; 13*581b4484SDave Chinner 14a8da0da2SDave Chinner /* buf log item flags */ 15*581b4484SDave Chinner #define XFS_BLI_HOLD (1u << 0) 16*581b4484SDave Chinner #define XFS_BLI_DIRTY (1u << 1) 17*581b4484SDave Chinner #define XFS_BLI_STALE (1u << 2) 18*581b4484SDave Chinner #define XFS_BLI_LOGGED (1u << 3) 19*581b4484SDave Chinner #define XFS_BLI_INODE_ALLOC_BUF (1u << 4) 20*581b4484SDave Chinner #define XFS_BLI_STALE_INODE (1u << 5) 21*581b4484SDave Chinner #define XFS_BLI_INODE_BUF (1u << 6) 22*581b4484SDave Chinner #define XFS_BLI_ORDERED (1u << 7) 231da177e4SLinus Torvalds 240b1b213fSChristoph Hellwig #define XFS_BLI_FLAGS \ 250b1b213fSChristoph Hellwig { XFS_BLI_HOLD, "HOLD" }, \ 260b1b213fSChristoph Hellwig { XFS_BLI_DIRTY, "DIRTY" }, \ 270b1b213fSChristoph Hellwig { XFS_BLI_STALE, "STALE" }, \ 280b1b213fSChristoph Hellwig { XFS_BLI_LOGGED, "LOGGED" }, \ 290b1b213fSChristoph Hellwig { XFS_BLI_INODE_ALLOC_BUF, "INODE_ALLOC" }, \ 30ccf7c23fSDave Chinner { XFS_BLI_STALE_INODE, "STALE_INODE" }, \ 315f6bed76SDave Chinner { XFS_BLI_INODE_BUF, "INODE_BUF" }, \ 325f6bed76SDave Chinner { XFS_BLI_ORDERED, "ORDERED" } 330b1b213fSChristoph Hellwig 341da177e4SLinus Torvalds /* 351da177e4SLinus Torvalds * This is the in core log item structure used to track information 361da177e4SLinus Torvalds * needed to log buffers. It tracks how many times the lock has been 371da177e4SLinus Torvalds * locked, and which 128 byte chunks of the buffer are dirty. 381da177e4SLinus Torvalds */ 3970a20655SCarlos Maiolino struct xfs_buf_log_item { 40efe2330fSChristoph Hellwig struct xfs_log_item bli_item; /* common item structure */ 411da177e4SLinus Torvalds struct xfs_buf *bli_buf; /* real buffer pointer */ 421da177e4SLinus Torvalds unsigned int bli_flags; /* misc flags */ 431da177e4SLinus Torvalds unsigned int bli_recur; /* lock recursion count */ 441da177e4SLinus Torvalds atomic_t bli_refcount; /* cnt of tp refs */ 45372cc85eSDave Chinner int bli_format_count; /* count of headers */ 46372cc85eSDave Chinner struct xfs_buf_log_format *bli_formats; /* array of in-log header ptrs */ 47b9438173SMark Tinguely struct xfs_buf_log_format __bli_format; /* embedded in-log header */ 4870a20655SCarlos Maiolino }; 491da177e4SLinus Torvalds 50f79af0b9SDave Chinner int xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *); 51664ffb8aSChristoph Hellwig void xfs_buf_item_done(struct xfs_buf *bp); 521da177e4SLinus Torvalds void xfs_buf_item_relse(struct xfs_buf *); 5395808459SBrian Foster bool xfs_buf_item_put(struct xfs_buf_log_item *); 5470a20655SCarlos Maiolino void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint); 556453c65dSBrian Foster bool xfs_buf_item_dirty_format(struct xfs_buf_log_item *); 56f593bf14SDave Chinner void xfs_buf_inode_iodone(struct xfs_buf *); 57664ffb8aSChristoph Hellwig void xfs_buf_inode_io_fail(struct xfs_buf *bp); 58664ffb8aSChristoph Hellwig #ifdef CONFIG_XFS_QUOTA 590c7e5afbSDave Chinner void xfs_buf_dquot_iodone(struct xfs_buf *); 60664ffb8aSChristoph Hellwig void xfs_buf_dquot_io_fail(struct xfs_buf *bp); 61664ffb8aSChristoph Hellwig #else 62664ffb8aSChristoph Hellwig static inline void xfs_buf_dquot_iodone(struct xfs_buf *bp) 63664ffb8aSChristoph Hellwig { 64664ffb8aSChristoph Hellwig } 65664ffb8aSChristoph Hellwig static inline void xfs_buf_dquot_io_fail(struct xfs_buf *bp) 66664ffb8aSChristoph Hellwig { 67664ffb8aSChristoph Hellwig } 68664ffb8aSChristoph Hellwig #endif /* CONFIG_XFS_QUOTA */ 69b01d1461SDave Chinner void xfs_buf_iodone(struct xfs_buf *); 708a6453a8SDarrick J. Wong bool xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec); 711da177e4SLinus Torvalds 72182696fbSDarrick J. Wong extern struct kmem_cache *xfs_buf_item_cache; 731da177e4SLinus Torvalds 741da177e4SLinus Torvalds #endif /* __XFS_BUF_ITEM_H__ */ 75