Return to xfs_inode_item.h CVS log

Up to [Development] / xfs-linux-nodel

remove mounpoint UUID code

It looks like all of the below is unused... and according
to Nathan,

"dont think it even got used/implemented anywhere, but i think it
was meant to be an auto-mount kinda thing... such that when you look
up at that point, it knows to mount the device with that uuid there,
if its not already it was never really written anywhere ... just an
idea in doug doucettes brain i think."

Think it'll ever go anywhere, or should it get pruned?

The below builds; not at all tested, until I get an idea if it's worth
doing.  Need to double check that some structures might not need padding
out to keep things compatible/consistent...
Merge of xfs-linux-melb:xfs-kern:31766a by kenmcd.

/*
 * Copyright (c) 2000,2005 Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it would be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write the Free Software Foundation,
 * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#ifndef	__XFS_INODE_ITEM_H__
#define	__XFS_INODE_ITEM_H__

/*
 * 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.  Changes to this structure
 * must be added on to the end.
 */
typedef struct xfs_inode_log_format {
	__uint16_t		ilf_type;	/* inode log item type */
	__uint16_t		ilf_size;	/* size of this item */
	__uint32_t		ilf_fields;	/* flags for fields logged */
	__uint16_t		ilf_asize;	/* size of attr d/ext/root */
	__uint16_t		ilf_dsize;	/* size of data/ext/root */
	__uint64_t		ilf_ino;	/* inode number */
	__uint32_t		ilf_rdev;	/* rdev value for dev inode*/
	__int64_t		ilf_blkno;	/* blkno of inode buffer */
	__int32_t		ilf_len;	/* len of inode buffer */
	__int32_t		ilf_boffset;	/* off of inode in buffer */
} xfs_inode_log_format_t;

#ifndef HAVE_FORMAT32
typedef struct xfs_inode_log_format_32 {
	__uint16_t		ilf_type;	/* inode log item type */
	__uint16_t		ilf_size;	/* size of this item */
	__uint32_t		ilf_fields;	/* flags for fields logged */
	__uint16_t		ilf_asize;	/* size of attr d/ext/root */
	__uint16_t		ilf_dsize;	/* size of data/ext/root */
	__uint64_t		ilf_ino;	/* inode number */
	__uint32_t		ilf_rdev;	/* rdev value for dev inode*/
	__int64_t		ilf_blkno;	/* blkno of inode buffer */
	__int32_t		ilf_len;	/* len of inode buffer */
	__int32_t		ilf_boffset;	/* off of inode in buffer */
} __attribute__((packed)) xfs_inode_log_format_32_t;
#endif

typedef struct xfs_inode_log_format_64 {
	__uint16_t		ilf_type;	/* inode log item type */
	__uint16_t		ilf_size;	/* size of this item */
	__uint32_t		ilf_fields;	/* flags for fields logged */
	__uint16_t		ilf_asize;	/* size of attr d/ext/root */
	__uint16_t		ilf_dsize;	/* size of data/ext/root */
	__uint32_t		ilf_pad;	/* pad for 64 bit boundary */
	__uint64_t		ilf_ino;	/* inode number */
	__uint32_t		ilf_rdev;	/* rdev value for dev inode*/
	__int64_t		ilf_blkno;	/* blkno of inode buffer */
	__int32_t		ilf_len;	/* len of inode buffer */
	__int32_t		ilf_boffset;	/* off of inode in buffer */
} xfs_inode_log_format_64_t;

/*
 * Flags for xfs_trans_log_inode flags field.
 */
#define	XFS_ILOG_CORE	0x001	/* log standard inode fields */
#define	XFS_ILOG_DDATA	0x002	/* log i_df.if_data */
#define	XFS_ILOG_DEXT	0x004	/* log i_df.if_extents */
#define	XFS_ILOG_DBROOT	0x008	/* log i_df.i_broot */
#define	XFS_ILOG_DEV	0x010	/* log the dev field */
/*			0x020*/ /* unused */
#define	XFS_ILOG_ADATA	0x040	/* log i_af.if_data */
#define	XFS_ILOG_AEXT	0x080	/* log i_af.if_extents */
#define	XFS_ILOG_ABROOT	0x100	/* log i_af.i_broot */

#define	XFS_ILOG_NONCORE	(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
				 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \
				 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
				 XFS_ILOG_ABROOT)

#define	XFS_ILOG_DFORK		(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
				 XFS_ILOG_DBROOT)

#define	XFS_ILOG_AFORK		(XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
				 XFS_ILOG_ABROOT)

#define	XFS_ILOG_ALL		(XFS_ILOG_CORE | XFS_ILOG_DDATA | \
				 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \
				 XFS_ILOG_DEV | XFS_ILOG_ADATA | \
				 XFS_ILOG_AEXT | XFS_ILOG_ABROOT)

#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)


#ifdef __KERNEL__

struct xfs_buf;
struct xfs_bmbt_rec_64;
struct xfs_inode;
struct xfs_mount;


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 */
	xfs_lsn_t		ili_last_lsn;	   /* lsn at last transaction */
	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_64	*ili_extents_buf;  /* array of logged
						      data exts */
	struct xfs_bmbt_rec_64	*ili_aextents_buf; /* array of logged
						      attr exts */
	unsigned int            ili_pushbuf_flag;  /* one bit used in push_ail */

#ifdef DEBUG
	uint64_t                ili_push_owner;    /* one who sets pushbuf_flag
						      above gets to push the buf */
#endif
#ifdef XFS_TRANS_DEBUG
	int			ili_root_size;
	char			*ili_orig_root;
#endif
	xfs_inode_log_format_t	ili_format;	   /* logged structure */
} xfs_inode_log_item_t;


#define	XFS_ILOG_FDATA(w)	xfs_ilog_fdata(w)
static inline int xfs_ilog_fdata(int w)
{
	return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA);
}

#endif	/* __KERNEL__ */

#define	XFS_ILOG_FBROOT(w)	xfs_ilog_fbroot(w)
static inline int xfs_ilog_fbroot(int w)
{
	return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
}

#define	XFS_ILOG_FEXT(w)	xfs_ilog_fext(w)
static inline int xfs_ilog_fext(int w)
{
	return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
}

static inline int xfs_inode_clean(xfs_inode_t *ip)
{
	return (!ip->i_itemp ||
		!(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
	       !ip->i_update_core;
}


#ifdef __KERNEL__

extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
extern void xfs_inode_item_destroy(struct xfs_inode *);
extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_iflush_abort(struct xfs_inode *);
extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
					 xfs_inode_log_format_t *);

#endif	/* __KERNEL__ */

#endif	/* __XFS_INODE_ITEM_H__ */