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// 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 */
};
/* Return value that means we want to abort the walk. */
#define XFS_IBULK_ABORT (XFS_IWALK_ABORT)
/*
* 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 ? XFS_IBULK_ABORT : 0;
}
/*
* Return stat information in bulk (by-inode) for the filesystem.
*/
typedef int (*bulkstat_one_fmt_pf)(struct xfs_ibulk *breq,
const struct xfs_bstat *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);
typedef int (*inumbers_fmt_pf)(
void __user *ubuffer, /* buffer to write to */
const xfs_inogrp_t *buffer, /* buffer to read from */
long count, /* # of elements to read */
long *written); /* # of bytes written */
int
xfs_inumbers_fmt(
void __user *ubuffer, /* buffer to write to */
const xfs_inogrp_t *buffer, /* buffer to read from */
long count, /* # of elements to read */
long *written); /* # of bytes written */
int /* error status */
xfs_inumbers(
xfs_mount_t *mp, /* mount point for filesystem */
xfs_ino_t *last, /* last inode returned */
int *count, /* size of buffer/count returned */
void __user *buffer, /* buffer with inode info */
inumbers_fmt_pf formatter);
/* Temporarily needed while we refactor functions. */
struct xfs_btree_cur;
struct xfs_inobt_rec_incore;
void xfs_bulkstat_ichunk_ra(struct xfs_mount *mp, xfs_agnumber_t agno,
struct xfs_inobt_rec_incore *irec);
int xfs_bulkstat_grab_ichunk(struct xfs_btree_cur *cur, xfs_agino_t agino,
int *icount, struct xfs_inobt_rec_incore *irec);
#endif /* __XFS_ITABLE_H__ */
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