65 lines
2.0 KiB
C
65 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
|
|
*/
|
|
#ifndef __XFS_ITABLE_H__
|
|
#define __XFS_ITABLE_H__
|
|
|
|
/* In-memory representation of a userspace request for batch inode data. */
|
|
struct xfs_ibulk {
|
|
struct xfs_mount *mp;
|
|
void __user *ubuffer; /* user output buffer */
|
|
xfs_ino_t startino; /* start with this inode */
|
|
unsigned int icount; /* number of elements in ubuffer */
|
|
unsigned int ocount; /* number of records returned */
|
|
unsigned int flags; /* see XFS_IBULK_FLAG_* */
|
|
};
|
|
|
|
/* Only iterate within the same AG as startino */
|
|
#define XFS_IBULK_SAME_AG (XFS_IWALK_SAME_AG)
|
|
|
|
/*
|
|
* Advance the user buffer pointer by one record of the given size. If the
|
|
* buffer is now full, return the appropriate error code.
|
|
*/
|
|
static inline int
|
|
xfs_ibulk_advance(
|
|
struct xfs_ibulk *breq,
|
|
size_t bytes)
|
|
{
|
|
char __user *b = breq->ubuffer;
|
|
|
|
breq->ubuffer = b + bytes;
|
|
breq->ocount++;
|
|
return breq->ocount == breq->icount ? -ECANCELED : 0;
|
|
}
|
|
|
|
/*
|
|
* Return stat information in bulk (by-inode) for the filesystem.
|
|
*/
|
|
|
|
/*
|
|
* Return codes for the formatter function are 0 to continue iterating, and
|
|
* non-zero to stop iterating. Any non-zero value will be passed up to the
|
|
* bulkstat/inumbers caller. The special value -ECANCELED can be used to stop
|
|
* iteration, as neither bulkstat nor inumbers will ever generate that error
|
|
* code on their own.
|
|
*/
|
|
|
|
typedef int (*bulkstat_one_fmt_pf)(struct xfs_ibulk *breq,
|
|
const struct xfs_bulkstat *bstat);
|
|
|
|
int xfs_bulkstat_one(struct xfs_ibulk *breq, bulkstat_one_fmt_pf formatter);
|
|
int xfs_bulkstat(struct xfs_ibulk *breq, bulkstat_one_fmt_pf formatter);
|
|
void xfs_bulkstat_to_bstat(struct xfs_mount *mp, struct xfs_bstat *bs1,
|
|
const struct xfs_bulkstat *bstat);
|
|
|
|
typedef int (*inumbers_fmt_pf)(struct xfs_ibulk *breq,
|
|
const struct xfs_inumbers *igrp);
|
|
|
|
int xfs_inumbers(struct xfs_ibulk *breq, inumbers_fmt_pf formatter);
|
|
void xfs_inumbers_to_inogrp(struct xfs_inogrp *ig1,
|
|
const struct xfs_inumbers *ig);
|
|
|
|
#endif /* __XFS_ITABLE_H__ */
|