linux/fs/xfs/xfs_dquot_item_recover.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2000-2006 Silicon Graphics, Inc.
 * All Rights Reserved.
 */
#include "xfs.h"
#include "xfs_fs.h"
#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
#include "xfs_inode.h"
#include "xfs_quota.h"
#include "xfs_trans.h"
#include "xfs_buf_item.h"
#include "xfs_trans_priv.h"
#include "xfs_qm.h"
#include "xfs_log.h"
#include "xfs_log_priv.h"
#include "xfs_log_recover.h"

STATIC void
xlog_recover_dquot_ra_pass2(
	struct xlog			*log,
	struct xlog_recover_item	*item)
{
	struct xfs_mount	*mp = log->l_mp;
	struct xfs_disk_dquot	*recddq;
	struct xfs_dq_logformat	*dq_f;
	uint			type;

	if (mp->m_qflags == 0)
		return;

	recddq = item->ri_buf[1].i_addr;
	if (recddq == NULL)
		return;
	if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
		return;

	type = recddq->d_flags & (XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
	ASSERT(type);
	if (log->l_quotaoffs_flag & type)
		return;

	dq_f = item->ri_buf[0].i_addr;
	ASSERT(dq_f);
	ASSERT(dq_f->qlf_len == 1);

	xlog_buf_readahead(log, dq_f->qlf_blkno,
			XFS_FSB_TO_BB(mp, dq_f->qlf_len),
			&xfs_dquot_buf_ra_ops);
}

const struct xlog_recover_item_ops xlog_dquot_item_ops = {
	.item_type		= XFS_LI_DQUOT,
	.ra_pass2		= xlog_recover_dquot_ra_pass2,
};

/*
 * Recover QUOTAOFF records. We simply make a note of it in the xlog
 * structure, so that we know not to do any dquot item or dquot buffer recovery,
 * of that type.
 */
STATIC int
xlog_recover_quotaoff_commit_pass1(
	struct xlog			*log,
	struct xlog_recover_item	*item)
{
	struct xfs_qoff_logformat	*qoff_f = item->ri_buf[0].i_addr;
	ASSERT(qoff_f);

	/*
	 * The logitem format's flag tells us if this was user quotaoff,
	 * group/project quotaoff or both.
	 */
	if (qoff_f->qf_flags & XFS_UQUOTA_ACCT)
		log->l_quotaoffs_flag |= XFS_DQ_USER;
	if (qoff_f->qf_flags & XFS_PQUOTA_ACCT)
		log->l_quotaoffs_flag |= XFS_DQ_PROJ;
	if (qoff_f->qf_flags & XFS_GQUOTA_ACCT)
		log->l_quotaoffs_flag |= XFS_DQ_GROUP;

	return 0;
}

const struct xlog_recover_item_ops xlog_quotaoff_item_ops = {
	.item_type		= XFS_LI_QUOTAOFF,
	.commit_pass1		= xlog_recover_quotaoff_commit_pass1,
};