Return to xfs_inode_item.h CVS log

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Add a field to the incore inode log item structure to hold
a pointer to a buffer which needs to be pushed out.  This is used
in the trylock routine to hand off the dirty inode buffer to the
push routine where we can safely call bawrite() without worry of
breaking if we sleep.

#ifndef	_XFS_INODE_ITEM_H
#define	_XFS_INODE_ITEM_H

struct xfs_inode;
struct xfs_bmbt_rec;

/*
 * This is the structure used to lay out an inode log item in the
 * log.  The size of the inline data/extents/b-tree root to be logged
 * (if any) is indicated in the ilf_dsize field.
 */
typedef struct xfs_inode_log_format {
	unsigned short		ilf_type;	/* inode log item type */
	unsigned short		ilf_size;	/* size of this item */
	uint			ilf_fields;	/* flags for fields logged */
	uint			ilf_dsize;	/* size of data/ext/root */
	xfs_ino_t		ilf_ino;	/* inode number */
	union {
		dev_t		ilfu_rdev;	/* rdev value for dev inode*/
		uuid_t		ilfu_uuid;	/* mount point value */
	} ilf_u;
} xfs_inode_log_format_t;

typedef struct xfs_inode_log_item {
	xfs_log_item_t		ili_item;	   /* common portion */
	struct xfs_inode	*ili_inode;	   /* inode ptr */
	xfs_lsn_t		ili_flush_lsn;	   /* lsn at last flush */
	unsigned short		ili_ilock_recur;   /* lock recursion count */
	unsigned short		ili_iolock_recur;  /* lock recursion count */
	unsigned short		ili_flags;	   /* misc flags */
	unsigned short		ili_logged;	   /* flushed logged data */
	unsigned int		ili_last_fields;   /* fields when flushed */
	struct xfs_bmbt_rec	*ili_extents_buf;  /* array of logged exts */
	buf_t			*ili_bp;	   /* locked inode buffer */
	xfs_inode_log_format_t	ili_format;	   /* logged structure */
} xfs_inode_log_item_t;

#define	XFS_ILI_HOLD		0x1
#define	XFS_ILI_IOLOCKED_EXCL	0x2
#define	XFS_ILI_IOLOCKED_SHARED	0x4

#define	XFS_ILI_IOLOCKED_ANY   (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED)

/*
 * Flags for xfs_trans_log_inode flags field.
 */
#define	XFS_ILOG_CORE	0x001	/* log standard inode fields */
#define	XFS_ILOG_DATA	0x002	/* log iu_data */
#define	XFS_ILOG_EXT	0x004	/* log iu_extents */
#define	XFS_ILOG_BROOT	0x008	/* log i_broot */
#define	XFS_ILOG_DEV	0x010	/* log the dev field */
#define	XFS_ILOG_UUID	0x020	/* log the uuid field */

#define	XFS_ILOG_NONCORE	(XFS_ILOG_DATA | XFS_ILOG_EXT | \
				 XFS_ILOG_BROOT | XFS_ILOG_DEV | \
				 XFS_ILOG_UUID)

#define	XFS_ILOG_ALL		(XFS_ILOG_CORE | XFS_ILOG_DATA | \
				 XFS_ILOG_EXT | XFS_ILOG_BROOT | \
				 XFS_ILOG_DEV | XFS_ILOG_UUID)

	
void	xfs_inode_item_init(struct xfs_inode *, xfs_mount_t *);
void	xfs_iflush_done(buf_t *, xfs_inode_log_item_t *);

#endif	/* _XFS_INODE_ITEM_H */