cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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xfs_buf_item.h (2419B)

      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
     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 information
     36 * needed to log buffers.  It tracks how many times the lock has been
     37 * 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_QUOTA
     59void	xfs_buf_dquot_iodone(struct xfs_buf *);
     60void	xfs_buf_dquot_io_fail(struct xfs_buf *bp);
     61#else
     62static 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__ */