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a211432c27
Create a new iterator function to simplify walking inodes in an XFS filesystem. This new iterator will replace the existing open-coded walking that goes on in various places. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
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*/
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#ifndef __XFS_ITABLE_H__
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#define __XFS_ITABLE_H__
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/*
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* xfs_bulkstat() is used to fill in xfs_bstat structures as well as dm_stat
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* structures (by the dmi library). This is a pointer to a formatter function
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* that will iget the inode and fill in the appropriate structure.
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* see xfs_bulkstat_one() and xfs_dm_bulkstat_one() in dmapi_xfs.c
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*/
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typedef int (*bulkstat_one_pf)(struct xfs_mount *mp,
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xfs_ino_t ino,
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void __user *buffer,
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int ubsize,
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int *ubused,
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int *stat);
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/*
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* Values for stat return value.
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*/
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#define BULKSTAT_RV_NOTHING 0
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#define BULKSTAT_RV_DIDONE 1
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#define BULKSTAT_RV_GIVEUP 2
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/*
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* Return stat information in bulk (by-inode) for the filesystem.
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*/
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int /* error status */
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xfs_bulkstat(
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xfs_mount_t *mp, /* mount point for filesystem */
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xfs_ino_t *lastino, /* last inode returned */
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int *count, /* size of buffer/count returned */
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bulkstat_one_pf formatter, /* func that'd fill a single buf */
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size_t statstruct_size,/* sizeof struct that we're filling */
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char __user *ubuffer,/* buffer with inode stats */
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int *done); /* 1 if there are more stats to get */
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typedef int (*bulkstat_one_fmt_pf)( /* used size in bytes or negative error */
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void __user *ubuffer, /* buffer to write to */
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int ubsize, /* remaining user buffer sz */
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int *ubused, /* bytes used by formatter */
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const xfs_bstat_t *buffer); /* buffer to read from */
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int
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xfs_bulkstat_one_int(
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xfs_mount_t *mp,
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xfs_ino_t ino,
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void __user *buffer,
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int ubsize,
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bulkstat_one_fmt_pf formatter,
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int *ubused,
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int *stat);
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int
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xfs_bulkstat_one(
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xfs_mount_t *mp,
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xfs_ino_t ino,
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void __user *buffer,
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int ubsize,
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int *ubused,
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int *stat);
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typedef int (*inumbers_fmt_pf)(
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void __user *ubuffer, /* buffer to write to */
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const xfs_inogrp_t *buffer, /* buffer to read from */
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long count, /* # of elements to read */
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long *written); /* # of bytes written */
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int
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xfs_inumbers_fmt(
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void __user *ubuffer, /* buffer to write to */
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const xfs_inogrp_t *buffer, /* buffer to read from */
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long count, /* # of elements to read */
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long *written); /* # of bytes written */
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int /* error status */
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xfs_inumbers(
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xfs_mount_t *mp, /* mount point for filesystem */
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xfs_ino_t *last, /* last inode returned */
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int *count, /* size of buffer/count returned */
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void __user *buffer, /* buffer with inode info */
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inumbers_fmt_pf formatter);
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/* Temporarily needed while we refactor functions. */
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struct xfs_btree_cur;
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struct xfs_inobt_rec_incore;
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void xfs_bulkstat_ichunk_ra(struct xfs_mount *mp, xfs_agnumber_t agno,
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struct xfs_inobt_rec_incore *irec);
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int xfs_bulkstat_grab_ichunk(struct xfs_btree_cur *cur, xfs_agino_t agino,
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int *icount, struct xfs_inobt_rec_incore *irec);
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#endif /* __XFS_ITABLE_H__ */
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