linux_dsm_epyc7002/fs/xfs/xfs_itable.h
Darrick J. Wong 5f19c7fc68 xfs: introduce v5 inode group structure
Introduce a new "v5" inode group structure that fixes the alignment
and padding problems of the existing structure.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:27 -07:00

56 lines
1.6 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 */
};
/* 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_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__ */