751 строка
19 KiB
C
751 строка
19 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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#include "xfs_shared.h"
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#include "xfs_format.h"
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#include "xfs_log_format.h"
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#include "xfs_trans_resv.h"
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#include "xfs_sb.h"
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#include "xfs_mount.h"
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#include "xfs_inode.h"
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#include "xfs_trans.h"
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#include "xfs_quota.h"
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#include "xfs_qm.h"
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#include "xfs_icache.h"
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STATIC int
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xfs_qm_log_quotaoff(
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struct xfs_mount *mp,
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struct xfs_qoff_logitem **qoffstartp,
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uint flags)
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{
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struct xfs_trans *tp;
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int error;
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struct xfs_qoff_logitem *qoffi;
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error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_quotaoff, 0, 0, 0, &tp);
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if (error)
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goto out;
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qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
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xfs_trans_log_quotaoff_item(tp, qoffi);
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spin_lock(&mp->m_sb_lock);
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mp->m_sb.sb_qflags = (mp->m_qflags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
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spin_unlock(&mp->m_sb_lock);
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xfs_log_sb(tp);
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/*
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* We have to make sure that the transaction is secure on disk before we
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* return and actually stop quota accounting. So, make it synchronous.
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* We don't care about quotoff's performance.
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*/
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xfs_trans_set_sync(tp);
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error = xfs_trans_commit(tp);
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if (error)
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goto out;
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*qoffstartp = qoffi;
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out:
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return error;
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}
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STATIC int
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xfs_qm_log_quotaoff_end(
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struct xfs_mount *mp,
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struct xfs_qoff_logitem **startqoff,
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uint flags)
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{
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struct xfs_trans *tp;
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int error;
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struct xfs_qoff_logitem *qoffi;
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error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_equotaoff, 0, 0, 0, &tp);
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if (error)
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return error;
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qoffi = xfs_trans_get_qoff_item(tp, *startqoff,
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flags & XFS_ALL_QUOTA_ACCT);
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xfs_trans_log_quotaoff_item(tp, qoffi);
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*startqoff = NULL;
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/*
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* We have to make sure that the transaction is secure on disk before we
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* return and actually stop quota accounting. So, make it synchronous.
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* We don't care about quotoff's performance.
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*/
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xfs_trans_set_sync(tp);
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return xfs_trans_commit(tp);
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}
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/*
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* Turn off quota accounting and/or enforcement for all udquots and/or
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* gdquots. Called only at unmount time.
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*
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* This assumes that there are no dquots of this file system cached
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* incore, and modifies the ondisk dquot directly. Therefore, for example,
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* it is an error to call this twice, without purging the cache.
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*/
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int
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xfs_qm_scall_quotaoff(
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xfs_mount_t *mp,
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uint flags)
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{
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struct xfs_quotainfo *q = mp->m_quotainfo;
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uint dqtype;
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int error;
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uint inactivate_flags;
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struct xfs_qoff_logitem *qoffstart = NULL;
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/*
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* No file system can have quotas enabled on disk but not in core.
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* Note that quota utilities (like quotaoff) _expect_
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* errno == -EEXIST here.
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*/
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if ((mp->m_qflags & flags) == 0)
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return -EEXIST;
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error = 0;
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flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
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/*
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* We don't want to deal with two quotaoffs messing up each other,
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* so we're going to serialize it. quotaoff isn't exactly a performance
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* critical thing.
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* If quotaoff, then we must be dealing with the root filesystem.
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*/
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ASSERT(q);
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mutex_lock(&q->qi_quotaofflock);
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/*
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* If we're just turning off quota enforcement, change mp and go.
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*/
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if ((flags & XFS_ALL_QUOTA_ACCT) == 0) {
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mp->m_qflags &= ~(flags);
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spin_lock(&mp->m_sb_lock);
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mp->m_sb.sb_qflags = mp->m_qflags;
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spin_unlock(&mp->m_sb_lock);
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mutex_unlock(&q->qi_quotaofflock);
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/* XXX what to do if error ? Revert back to old vals incore ? */
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return xfs_sync_sb(mp, false);
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}
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dqtype = 0;
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inactivate_flags = 0;
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/*
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* If accounting is off, we must turn enforcement off, clear the
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* quota 'CHKD' certificate to make it known that we have to
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* do a quotacheck the next time this quota is turned on.
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*/
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if (flags & XFS_UQUOTA_ACCT) {
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dqtype |= XFS_QMOPT_UQUOTA;
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flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD);
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inactivate_flags |= XFS_UQUOTA_ACTIVE;
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}
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if (flags & XFS_GQUOTA_ACCT) {
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dqtype |= XFS_QMOPT_GQUOTA;
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flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD);
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inactivate_flags |= XFS_GQUOTA_ACTIVE;
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}
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if (flags & XFS_PQUOTA_ACCT) {
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dqtype |= XFS_QMOPT_PQUOTA;
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flags |= (XFS_PQUOTA_CHKD | XFS_PQUOTA_ENFD);
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inactivate_flags |= XFS_PQUOTA_ACTIVE;
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}
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/*
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* Nothing to do? Don't complain. This happens when we're just
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* turning off quota enforcement.
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*/
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if ((mp->m_qflags & flags) == 0)
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goto out_unlock;
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/*
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* Write the LI_QUOTAOFF log record, and do SB changes atomically,
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* and synchronously. If we fail to write, we should abort the
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* operation as it cannot be recovered safely if we crash.
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*/
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error = xfs_qm_log_quotaoff(mp, &qoffstart, flags);
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if (error)
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goto out_unlock;
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/*
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* Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
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* to take care of the race between dqget and quotaoff. We don't take
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* any special locks to reset these bits. All processes need to check
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* these bits *after* taking inode lock(s) to see if the particular
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* quota type is in the process of being turned off. If *ACTIVE, it is
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* guaranteed that all dquot structures and all quotainode ptrs will all
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* stay valid as long as that inode is kept locked.
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*
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* There is no turning back after this.
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*/
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mp->m_qflags &= ~inactivate_flags;
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/*
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* Give back all the dquot reference(s) held by inodes.
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* Here we go thru every single incore inode in this file system, and
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* do a dqrele on the i_udquot/i_gdquot that it may have.
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* Essentially, as long as somebody has an inode locked, this guarantees
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* that quotas will not be turned off. This is handy because in a
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* transaction once we lock the inode(s) and check for quotaon, we can
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* depend on the quota inodes (and other things) being valid as long as
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* we keep the lock(s).
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*/
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error = xfs_dqrele_all_inodes(mp, flags);
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ASSERT(!error);
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/*
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* Next we make the changes in the quota flag in the mount struct.
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* This isn't protected by a particular lock directly, because we
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* don't want to take a mrlock every time we depend on quotas being on.
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*/
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mp->m_qflags &= ~flags;
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/*
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* Go through all the dquots of this file system and purge them,
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* according to what was turned off.
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*/
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xfs_qm_dqpurge_all(mp, dqtype);
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/*
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* Transactions that had started before ACTIVE state bit was cleared
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* could have logged many dquots, so they'd have higher LSNs than
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* the first QUOTAOFF log record does. If we happen to crash when
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* the tail of the log has gone past the QUOTAOFF record, but
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* before the last dquot modification, those dquots __will__
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* recover, and that's not good.
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*
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* So, we have QUOTAOFF start and end logitems; the start
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* logitem won't get overwritten until the end logitem appears...
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*/
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error = xfs_qm_log_quotaoff_end(mp, &qoffstart, flags);
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if (error) {
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/* We're screwed now. Shutdown is the only option. */
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xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
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goto out_unlock;
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}
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/*
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* If all quotas are completely turned off, close shop.
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*/
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if (mp->m_qflags == 0) {
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mutex_unlock(&q->qi_quotaofflock);
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xfs_qm_destroy_quotainfo(mp);
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return 0;
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}
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/*
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* Release our quotainode references if we don't need them anymore.
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*/
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if ((dqtype & XFS_QMOPT_UQUOTA) && q->qi_uquotaip) {
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xfs_irele(q->qi_uquotaip);
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q->qi_uquotaip = NULL;
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}
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if ((dqtype & XFS_QMOPT_GQUOTA) && q->qi_gquotaip) {
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xfs_irele(q->qi_gquotaip);
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q->qi_gquotaip = NULL;
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}
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if ((dqtype & XFS_QMOPT_PQUOTA) && q->qi_pquotaip) {
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xfs_irele(q->qi_pquotaip);
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q->qi_pquotaip = NULL;
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}
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out_unlock:
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if (error && qoffstart)
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xfs_qm_qoff_logitem_relse(qoffstart);
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mutex_unlock(&q->qi_quotaofflock);
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return error;
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}
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STATIC int
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xfs_qm_scall_trunc_qfile(
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struct xfs_mount *mp,
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xfs_ino_t ino)
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{
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struct xfs_inode *ip;
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struct xfs_trans *tp;
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int error;
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if (ino == NULLFSINO)
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return 0;
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error = xfs_iget(mp, NULL, ino, 0, 0, &ip);
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if (error)
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return error;
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xfs_ilock(ip, XFS_IOLOCK_EXCL);
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error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
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if (error) {
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xfs_iunlock(ip, XFS_IOLOCK_EXCL);
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goto out_put;
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}
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xfs_ilock(ip, XFS_ILOCK_EXCL);
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xfs_trans_ijoin(tp, ip, 0);
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ip->i_disk_size = 0;
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xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
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error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
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if (error) {
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xfs_trans_cancel(tp);
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goto out_unlock;
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}
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ASSERT(ip->i_df.if_nextents == 0);
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xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
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error = xfs_trans_commit(tp);
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out_unlock:
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xfs_iunlock(ip, XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL);
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out_put:
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xfs_irele(ip);
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return error;
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}
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int
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xfs_qm_scall_trunc_qfiles(
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xfs_mount_t *mp,
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uint flags)
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{
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int error = -EINVAL;
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if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0 ||
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(flags & ~XFS_QMOPT_QUOTALL)) {
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xfs_debug(mp, "%s: flags=%x m_qflags=%x",
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__func__, flags, mp->m_qflags);
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return -EINVAL;
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}
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if (flags & XFS_QMOPT_UQUOTA) {
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error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
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if (error)
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return error;
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}
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if (flags & XFS_QMOPT_GQUOTA) {
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error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
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if (error)
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return error;
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}
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if (flags & XFS_QMOPT_PQUOTA)
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error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_pquotino);
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return error;
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}
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/*
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* Switch on (a given) quota enforcement for a filesystem. This takes
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* effect immediately.
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* (Switching on quota accounting must be done at mount time.)
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*/
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int
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xfs_qm_scall_quotaon(
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xfs_mount_t *mp,
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uint flags)
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{
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int error;
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uint qf;
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/*
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* Switching on quota accounting must be done at mount time,
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* only consider quota enforcement stuff here.
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*/
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flags &= XFS_ALL_QUOTA_ENFD;
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if (flags == 0) {
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xfs_debug(mp, "%s: zero flags, m_qflags=%x",
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__func__, mp->m_qflags);
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return -EINVAL;
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}
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/*
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* Can't enforce without accounting. We check the superblock
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* qflags here instead of m_qflags because rootfs can have
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* quota acct on ondisk without m_qflags' knowing.
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*/
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if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
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(flags & XFS_UQUOTA_ENFD)) ||
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((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
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(flags & XFS_GQUOTA_ENFD)) ||
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((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
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(flags & XFS_PQUOTA_ENFD))) {
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xfs_debug(mp,
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"%s: Can't enforce without acct, flags=%x sbflags=%x",
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__func__, flags, mp->m_sb.sb_qflags);
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return -EINVAL;
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}
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/*
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* If everything's up to-date incore, then don't waste time.
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*/
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if ((mp->m_qflags & flags) == flags)
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return -EEXIST;
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/*
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* Change sb_qflags on disk but not incore mp->qflags
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* if this is the root filesystem.
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*/
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spin_lock(&mp->m_sb_lock);
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qf = mp->m_sb.sb_qflags;
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mp->m_sb.sb_qflags = qf | flags;
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spin_unlock(&mp->m_sb_lock);
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/*
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* There's nothing to change if it's the same.
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*/
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if ((qf & flags) == flags)
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return -EEXIST;
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error = xfs_sync_sb(mp, false);
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if (error)
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return error;
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/*
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* If we aren't trying to switch on quota enforcement, we are done.
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*/
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if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
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(mp->m_qflags & XFS_UQUOTA_ACCT)) ||
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((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) !=
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(mp->m_qflags & XFS_PQUOTA_ACCT)) ||
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((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) !=
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(mp->m_qflags & XFS_GQUOTA_ACCT)))
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return 0;
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if (! XFS_IS_QUOTA_RUNNING(mp))
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return -ESRCH;
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/*
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* Switch on quota enforcement in core.
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*/
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mutex_lock(&mp->m_quotainfo->qi_quotaofflock);
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mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
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mutex_unlock(&mp->m_quotainfo->qi_quotaofflock);
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return 0;
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}
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#define XFS_QC_MASK \
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(QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
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/*
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* Adjust limits of this quota, and the defaults if passed in. Returns true
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* if the new limits made sense and were applied, false otherwise.
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*/
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static inline bool
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xfs_setqlim_limits(
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struct xfs_mount *mp,
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struct xfs_dquot_res *res,
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struct xfs_quota_limits *qlim,
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xfs_qcnt_t hard,
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xfs_qcnt_t soft,
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const char *tag)
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{
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/* The hard limit can't be less than the soft limit. */
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if (hard != 0 && hard < soft) {
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xfs_debug(mp, "%shard %lld < %ssoft %lld", tag, hard, tag,
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soft);
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return false;
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}
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res->hardlimit = hard;
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res->softlimit = soft;
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if (qlim) {
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qlim->hard = hard;
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qlim->soft = soft;
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}
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return true;
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}
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static inline void
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xfs_setqlim_warns(
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struct xfs_dquot_res *res,
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struct xfs_quota_limits *qlim,
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int warns)
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{
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res->warnings = warns;
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if (qlim)
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qlim->warn = warns;
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}
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static inline void
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xfs_setqlim_timer(
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struct xfs_mount *mp,
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struct xfs_dquot_res *res,
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struct xfs_quota_limits *qlim,
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s64 timer)
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{
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if (qlim) {
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/* Set the length of the default grace period. */
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res->timer = xfs_dquot_set_grace_period(timer);
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qlim->time = res->timer;
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} else {
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/* Set the grace period expiration on a quota. */
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res->timer = xfs_dquot_set_timeout(mp, timer);
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}
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}
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/*
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* Adjust quota limits, and start/stop timers accordingly.
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*/
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int
|
|
xfs_qm_scall_setqlim(
|
|
struct xfs_mount *mp,
|
|
xfs_dqid_t id,
|
|
xfs_dqtype_t type,
|
|
struct qc_dqblk *newlim)
|
|
{
|
|
struct xfs_quotainfo *q = mp->m_quotainfo;
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struct xfs_dquot *dqp;
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struct xfs_trans *tp;
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|
struct xfs_def_quota *defq;
|
|
struct xfs_dquot_res *res;
|
|
struct xfs_quota_limits *qlim;
|
|
int error;
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xfs_qcnt_t hard, soft;
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|
|
|
if (newlim->d_fieldmask & ~XFS_QC_MASK)
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|
return -EINVAL;
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if ((newlim->d_fieldmask & XFS_QC_MASK) == 0)
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return 0;
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|
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/*
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|
* We don't want to race with a quotaoff so take the quotaoff lock.
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* We don't hold an inode lock, so there's nothing else to stop
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* a quotaoff from happening.
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*/
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mutex_lock(&q->qi_quotaofflock);
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|
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/*
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* Get the dquot (locked) before we start, as we need to do a
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|
* transaction to allocate it if it doesn't exist. Once we have the
|
|
* dquot, unlock it so we can start the next transaction safely. We hold
|
|
* a reference to the dquot, so it's safe to do this unlock/lock without
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* it being reclaimed in the mean time.
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*/
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error = xfs_qm_dqget(mp, id, type, true, &dqp);
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if (error) {
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ASSERT(error != -ENOENT);
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goto out_unlock;
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}
|
|
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defq = xfs_get_defquota(q, xfs_dquot_type(dqp));
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xfs_dqunlock(dqp);
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|
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error = xfs_trans_alloc(mp, &M_RES(mp)->tr_qm_setqlim, 0, 0, 0, &tp);
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if (error)
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|
goto out_rele;
|
|
|
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xfs_dqlock(dqp);
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xfs_trans_dqjoin(tp, dqp);
|
|
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/*
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* Update quota limits, warnings, and timers, and the defaults
|
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* if we're touching id == 0.
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*
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* Make sure that hardlimits are >= soft limits before changing.
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|
*
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* Update warnings counter(s) if requested.
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|
*
|
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* Timelimits for the super user set the relative time the other users
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* can be over quota for this file system. If it is zero a default is
|
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* used. Ditto for the default soft and hard limit values (already
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|
* done, above), and for warnings.
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|
*
|
|
* For other IDs, userspace can bump out the grace period if over
|
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* the soft limit.
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|
*/
|
|
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/* Blocks on the data device. */
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hard = (newlim->d_fieldmask & QC_SPC_HARD) ?
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(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) :
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dqp->q_blk.hardlimit;
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soft = (newlim->d_fieldmask & QC_SPC_SOFT) ?
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(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) :
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dqp->q_blk.softlimit;
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res = &dqp->q_blk;
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qlim = id == 0 ? &defq->blk : NULL;
|
|
|
|
if (xfs_setqlim_limits(mp, res, qlim, hard, soft, "blk"))
|
|
xfs_dquot_set_prealloc_limits(dqp);
|
|
if (newlim->d_fieldmask & QC_SPC_WARNS)
|
|
xfs_setqlim_warns(res, qlim, newlim->d_spc_warns);
|
|
if (newlim->d_fieldmask & QC_SPC_TIMER)
|
|
xfs_setqlim_timer(mp, res, qlim, newlim->d_spc_timer);
|
|
|
|
/* Blocks on the realtime device. */
|
|
hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
|
|
(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) :
|
|
dqp->q_rtb.hardlimit;
|
|
soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ?
|
|
(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) :
|
|
dqp->q_rtb.softlimit;
|
|
res = &dqp->q_rtb;
|
|
qlim = id == 0 ? &defq->rtb : NULL;
|
|
|
|
xfs_setqlim_limits(mp, res, qlim, hard, soft, "rtb");
|
|
if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
|
|
xfs_setqlim_warns(res, qlim, newlim->d_rt_spc_warns);
|
|
if (newlim->d_fieldmask & QC_RT_SPC_TIMER)
|
|
xfs_setqlim_timer(mp, res, qlim, newlim->d_rt_spc_timer);
|
|
|
|
/* Inodes */
|
|
hard = (newlim->d_fieldmask & QC_INO_HARD) ?
|
|
(xfs_qcnt_t) newlim->d_ino_hardlimit :
|
|
dqp->q_ino.hardlimit;
|
|
soft = (newlim->d_fieldmask & QC_INO_SOFT) ?
|
|
(xfs_qcnt_t) newlim->d_ino_softlimit :
|
|
dqp->q_ino.softlimit;
|
|
res = &dqp->q_ino;
|
|
qlim = id == 0 ? &defq->ino : NULL;
|
|
|
|
xfs_setqlim_limits(mp, res, qlim, hard, soft, "ino");
|
|
if (newlim->d_fieldmask & QC_INO_WARNS)
|
|
xfs_setqlim_warns(res, qlim, newlim->d_ino_warns);
|
|
if (newlim->d_fieldmask & QC_INO_TIMER)
|
|
xfs_setqlim_timer(mp, res, qlim, newlim->d_ino_timer);
|
|
|
|
if (id != 0) {
|
|
/*
|
|
* If the user is now over quota, start the timelimit.
|
|
* The user will not be 'warned'.
|
|
* Note that we keep the timers ticking, whether enforcement
|
|
* is on or off. We don't really want to bother with iterating
|
|
* over all ondisk dquots and turning the timers on/off.
|
|
*/
|
|
xfs_qm_adjust_dqtimers(dqp);
|
|
}
|
|
dqp->q_flags |= XFS_DQFLAG_DIRTY;
|
|
xfs_trans_log_dquot(tp, dqp);
|
|
|
|
error = xfs_trans_commit(tp);
|
|
|
|
out_rele:
|
|
xfs_qm_dqrele(dqp);
|
|
out_unlock:
|
|
mutex_unlock(&q->qi_quotaofflock);
|
|
return error;
|
|
}
|
|
|
|
/* Fill out the quota context. */
|
|
static void
|
|
xfs_qm_scall_getquota_fill_qc(
|
|
struct xfs_mount *mp,
|
|
xfs_dqtype_t type,
|
|
const struct xfs_dquot *dqp,
|
|
struct qc_dqblk *dst)
|
|
{
|
|
memset(dst, 0, sizeof(*dst));
|
|
dst->d_spc_hardlimit = XFS_FSB_TO_B(mp, dqp->q_blk.hardlimit);
|
|
dst->d_spc_softlimit = XFS_FSB_TO_B(mp, dqp->q_blk.softlimit);
|
|
dst->d_ino_hardlimit = dqp->q_ino.hardlimit;
|
|
dst->d_ino_softlimit = dqp->q_ino.softlimit;
|
|
dst->d_space = XFS_FSB_TO_B(mp, dqp->q_blk.reserved);
|
|
dst->d_ino_count = dqp->q_ino.reserved;
|
|
dst->d_spc_timer = dqp->q_blk.timer;
|
|
dst->d_ino_timer = dqp->q_ino.timer;
|
|
dst->d_ino_warns = dqp->q_ino.warnings;
|
|
dst->d_spc_warns = dqp->q_blk.warnings;
|
|
dst->d_rt_spc_hardlimit = XFS_FSB_TO_B(mp, dqp->q_rtb.hardlimit);
|
|
dst->d_rt_spc_softlimit = XFS_FSB_TO_B(mp, dqp->q_rtb.softlimit);
|
|
dst->d_rt_space = XFS_FSB_TO_B(mp, dqp->q_rtb.reserved);
|
|
dst->d_rt_spc_timer = dqp->q_rtb.timer;
|
|
dst->d_rt_spc_warns = dqp->q_rtb.warnings;
|
|
|
|
/*
|
|
* Internally, we don't reset all the timers when quota enforcement
|
|
* gets turned off. No need to confuse the user level code,
|
|
* so return zeroes in that case.
|
|
*/
|
|
if (!xfs_dquot_is_enforced(dqp)) {
|
|
dst->d_spc_timer = 0;
|
|
dst->d_ino_timer = 0;
|
|
dst->d_rt_spc_timer = 0;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
if (xfs_dquot_is_enforced(dqp) && dqp->q_id != 0) {
|
|
if ((dst->d_space > dst->d_spc_softlimit) &&
|
|
(dst->d_spc_softlimit > 0)) {
|
|
ASSERT(dst->d_spc_timer != 0);
|
|
}
|
|
if ((dst->d_ino_count > dqp->q_ino.softlimit) &&
|
|
(dqp->q_ino.softlimit > 0)) {
|
|
ASSERT(dst->d_ino_timer != 0);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Return the quota information for the dquot matching id. */
|
|
int
|
|
xfs_qm_scall_getquota(
|
|
struct xfs_mount *mp,
|
|
xfs_dqid_t id,
|
|
xfs_dqtype_t type,
|
|
struct qc_dqblk *dst)
|
|
{
|
|
struct xfs_dquot *dqp;
|
|
int error;
|
|
|
|
/*
|
|
* Try to get the dquot. We don't want it allocated on disk, so don't
|
|
* set doalloc. If it doesn't exist, we'll get ENOENT back.
|
|
*/
|
|
error = xfs_qm_dqget(mp, id, type, false, &dqp);
|
|
if (error)
|
|
return error;
|
|
|
|
/*
|
|
* If everything's NULL, this dquot doesn't quite exist as far as
|
|
* our utility programs are concerned.
|
|
*/
|
|
if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
|
|
error = -ENOENT;
|
|
goto out_put;
|
|
}
|
|
|
|
xfs_qm_scall_getquota_fill_qc(mp, type, dqp, dst);
|
|
|
|
out_put:
|
|
xfs_qm_dqput(dqp);
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Return the quota information for the first initialized dquot whose id
|
|
* is at least as high as id.
|
|
*/
|
|
int
|
|
xfs_qm_scall_getquota_next(
|
|
struct xfs_mount *mp,
|
|
xfs_dqid_t *id,
|
|
xfs_dqtype_t type,
|
|
struct qc_dqblk *dst)
|
|
{
|
|
struct xfs_dquot *dqp;
|
|
int error;
|
|
|
|
error = xfs_qm_dqget_next(mp, *id, type, &dqp);
|
|
if (error)
|
|
return error;
|
|
|
|
/* Fill in the ID we actually read from disk */
|
|
*id = dqp->q_id;
|
|
|
|
xfs_qm_scall_getquota_fill_qc(mp, type, dqp, dst);
|
|
|
|
xfs_qm_dqput(dqp);
|
|
return error;
|
|
}
|