2005-04-17 06:20:36 +08:00
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/*
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2005-11-02 11:59:41 +08:00
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* Copyright (c) 2000-2003 Silicon Graphics, Inc.
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* All Rights Reserved.
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2005-04-17 06:20:36 +08:00
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*
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2005-11-02 11:59:41 +08:00
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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2005-04-17 06:20:36 +08:00
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* published by the Free Software Foundation.
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*
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2005-11-02 11:59:41 +08:00
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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2005-04-17 06:20:36 +08:00
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*
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2005-11-02 11:59:41 +08:00
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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2005-04-17 06:20:36 +08:00
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*/
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#include "xfs.h"
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#include "xfs_fs.h"
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2005-11-02 11:38:42 +08:00
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#include "xfs_bit.h"
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2005-04-17 06:20:36 +08:00
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#include "xfs_log.h"
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2005-11-02 11:38:42 +08:00
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#include "xfs_inum.h"
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2005-04-17 06:20:36 +08:00
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#include "xfs_trans.h"
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#include "xfs_sb.h"
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#include "xfs_ag.h"
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#include "xfs_dir2.h"
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#include "xfs_alloc.h"
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#include "xfs_dmapi.h"
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#include "xfs_quota.h"
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#include "xfs_mount.h"
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#include "xfs_bmap_btree.h"
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2005-11-02 11:38:42 +08:00
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#include "xfs_alloc_btree.h"
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2005-04-17 06:20:36 +08:00
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#include "xfs_ialloc_btree.h"
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#include "xfs_dir2_sf.h"
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2005-11-02 11:38:42 +08:00
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#include "xfs_attr_sf.h"
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2005-04-17 06:20:36 +08:00
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#include "xfs_dinode.h"
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#include "xfs_inode.h"
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#include "xfs_bmap.h"
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2005-11-02 11:38:42 +08:00
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#include "xfs_btree.h"
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#include "xfs_ialloc.h"
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2005-04-17 06:20:36 +08:00
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#include "xfs_rtalloc.h"
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#include "xfs_error.h"
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#include "xfs_itable.h"
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#include "xfs_rw.h"
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#include "xfs_acl.h"
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#include "xfs_attr.h"
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#include "xfs_buf_item.h"
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#include "xfs_trans_priv.h"
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#include "xfs_qm.h"
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/*
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* returns the number of iovecs needed to log the given dquot item.
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*/
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/* ARGSUSED */
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STATIC uint
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xfs_qm_dquot_logitem_size(
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xfs_dq_logitem_t *logitem)
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{
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/*
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* we need only two iovecs, one for the format, one for the real thing
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*/
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return (2);
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}
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/*
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* fills in the vector of log iovecs for the given dquot log item.
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*/
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STATIC void
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xfs_qm_dquot_logitem_format(
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xfs_dq_logitem_t *logitem,
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xfs_log_iovec_t *logvec)
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{
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ASSERT(logitem);
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ASSERT(logitem->qli_dquot);
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logvec->i_addr = (xfs_caddr_t)&logitem->qli_format;
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logvec->i_len = sizeof(xfs_dq_logformat_t);
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2006-03-14 10:25:02 +08:00
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XLOG_VEC_SET_TYPE(logvec, XLOG_REG_TYPE_QFORMAT);
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2005-04-17 06:20:36 +08:00
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logvec++;
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logvec->i_addr = (xfs_caddr_t)&logitem->qli_dquot->q_core;
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logvec->i_len = sizeof(xfs_disk_dquot_t);
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2006-03-14 10:25:02 +08:00
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XLOG_VEC_SET_TYPE(logvec, XLOG_REG_TYPE_DQUOT);
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2005-04-17 06:20:36 +08:00
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ASSERT(2 == logitem->qli_item.li_desc->lid_size);
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logitem->qli_format.qlf_size = 2;
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}
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/*
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* Increment the pin count of the given dquot.
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* This value is protected by pinlock spinlock in the xQM structure.
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*/
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STATIC void
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xfs_qm_dquot_logitem_pin(
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xfs_dq_logitem_t *logitem)
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{
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xfs_dquot_t *dqp;
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dqp = logitem->qli_dquot;
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ASSERT(XFS_DQ_IS_LOCKED(dqp));
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2007-10-11 15:38:18 +08:00
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spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
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2005-04-17 06:20:36 +08:00
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dqp->q_pincount++;
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2007-10-11 15:38:18 +08:00
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spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
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2005-04-17 06:20:36 +08:00
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}
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/*
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* Decrement the pin count of the given dquot, and wake up
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* anyone in xfs_dqwait_unpin() if the count goes to 0. The
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* dquot must have been previously pinned with a call to xfs_dqpin().
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*/
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/* ARGSUSED */
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STATIC void
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xfs_qm_dquot_logitem_unpin(
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xfs_dq_logitem_t *logitem,
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int stale)
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{
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xfs_dquot_t *dqp;
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dqp = logitem->qli_dquot;
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ASSERT(dqp->q_pincount > 0);
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2007-10-11 15:38:18 +08:00
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spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
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2005-04-17 06:20:36 +08:00
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dqp->q_pincount--;
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if (dqp->q_pincount == 0) {
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sv_broadcast(&dqp->q_pinwait);
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}
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2007-10-11 15:38:18 +08:00
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spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
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2005-04-17 06:20:36 +08:00
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}
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/* ARGSUSED */
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STATIC void
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xfs_qm_dquot_logitem_unpin_remove(
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xfs_dq_logitem_t *logitem,
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xfs_trans_t *tp)
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{
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xfs_qm_dquot_logitem_unpin(logitem, 0);
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}
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/*
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* Given the logitem, this writes the corresponding dquot entry to disk
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* asynchronously. This is called with the dquot entry securely locked;
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* we simply get xfs_qm_dqflush() to do the work, and unlock the dquot
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* at the end.
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*/
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STATIC void
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xfs_qm_dquot_logitem_push(
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xfs_dq_logitem_t *logitem)
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{
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xfs_dquot_t *dqp;
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2008-04-10 10:20:24 +08:00
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int error;
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2005-04-17 06:20:36 +08:00
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dqp = logitem->qli_dquot;
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ASSERT(XFS_DQ_IS_LOCKED(dqp));
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ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
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/*
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* Since we were able to lock the dquot's flush lock and
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* we found it on the AIL, the dquot must be dirty. This
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* is because the dquot is removed from the AIL while still
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* holding the flush lock in xfs_dqflush_done(). Thus, if
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* we found it in the AIL and were able to obtain the flush
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* lock without sleeping, then there must not have been
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* anyone in the process of flushing the dquot.
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*/
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2008-04-10 10:20:24 +08:00
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error = xfs_qm_dqflush(dqp, XFS_QMOPT_DELWRI);
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if (error)
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xfs_fs_cmn_err(CE_WARN, dqp->q_mount,
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"xfs_qm_dquot_logitem_push: push error %d on dqp %p",
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error, dqp);
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2005-04-17 06:20:36 +08:00
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xfs_dqunlock(dqp);
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}
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/*ARGSUSED*/
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STATIC xfs_lsn_t
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xfs_qm_dquot_logitem_committed(
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xfs_dq_logitem_t *l,
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xfs_lsn_t lsn)
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{
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/*
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* We always re-log the entire dquot when it becomes dirty,
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* so, the latest copy _is_ the only one that matters.
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*/
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return (lsn);
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}
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/*
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* This is called to wait for the given dquot to be unpinned.
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* Most of these pin/unpin routines are plagiarized from inode code.
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*/
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void
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xfs_qm_dqunpin_wait(
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xfs_dquot_t *dqp)
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{
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ASSERT(XFS_DQ_IS_LOCKED(dqp));
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if (dqp->q_pincount == 0) {
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return;
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}
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/*
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* Give the log a push so we don't wait here too long.
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*/
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xfs_log_force(dqp->q_mount, (xfs_lsn_t)0, XFS_LOG_FORCE);
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2007-10-11 15:38:18 +08:00
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spin_lock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
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2005-04-17 06:20:36 +08:00
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if (dqp->q_pincount == 0) {
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2007-10-11 15:38:18 +08:00
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spin_unlock(&(XFS_DQ_TO_QINF(dqp)->qi_pinlock));
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2005-04-17 06:20:36 +08:00
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return;
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}
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sv_wait(&(dqp->q_pinwait), PINOD,
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&(XFS_DQ_TO_QINF(dqp)->qi_pinlock), s);
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}
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/*
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* This is called when IOP_TRYLOCK returns XFS_ITEM_PUSHBUF to indicate that
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* the dquot is locked by us, but the flush lock isn't. So, here we are
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* going to see if the relevant dquot buffer is incore, waiting on DELWRI.
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* If so, we want to push it out to help us take this item off the AIL as soon
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* as possible.
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*
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2007-10-11 15:36:05 +08:00
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* We must not be holding the AIL lock at this point. Calling incore() to
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* search the buffer cache can be a time consuming thing, and AIL lock is a
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2005-04-17 06:20:36 +08:00
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* spinlock.
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*/
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STATIC void
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xfs_qm_dquot_logitem_pushbuf(
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xfs_dq_logitem_t *qip)
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{
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xfs_dquot_t *dqp;
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xfs_mount_t *mp;
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xfs_buf_t *bp;
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uint dopush;
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dqp = qip->qli_dquot;
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ASSERT(XFS_DQ_IS_LOCKED(dqp));
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/*
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* The qli_pushbuf_flag keeps others from
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* trying to duplicate our effort.
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*/
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ASSERT(qip->qli_pushbuf_flag != 0);
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2006-01-12 07:29:53 +08:00
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ASSERT(qip->qli_push_owner == current_pid());
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2005-04-17 06:20:36 +08:00
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/*
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* If flushlock isn't locked anymore, chances are that the
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* inode flush completed and the inode was taken off the AIL.
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* So, just get out.
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*/
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2006-06-19 06:41:30 +08:00
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if (!issemalocked(&(dqp->q_flock)) ||
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2005-04-17 06:20:36 +08:00
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((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
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qip->qli_pushbuf_flag = 0;
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xfs_dqunlock(dqp);
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return;
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}
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mp = dqp->q_mount;
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bp = xfs_incore(mp->m_ddev_targp, qip->qli_format.qlf_blkno,
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XFS_QI_DQCHUNKLEN(mp),
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XFS_INCORE_TRYLOCK);
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if (bp != NULL) {
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if (XFS_BUF_ISDELAYWRITE(bp)) {
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dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
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2006-06-19 06:41:30 +08:00
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issemalocked(&(dqp->q_flock)));
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2005-04-17 06:20:36 +08:00
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qip->qli_pushbuf_flag = 0;
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xfs_dqunlock(dqp);
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if (XFS_BUF_ISPINNED(bp)) {
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xfs_log_force(mp, (xfs_lsn_t)0,
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XFS_LOG_FORCE);
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}
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if (dopush) {
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#ifdef XFSRACEDEBUG
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delay_for_intr();
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delay(300);
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#endif
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xfs_bawrite(mp, bp);
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} else {
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xfs_buf_relse(bp);
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}
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} else {
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qip->qli_pushbuf_flag = 0;
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xfs_dqunlock(dqp);
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xfs_buf_relse(bp);
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}
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return;
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}
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qip->qli_pushbuf_flag = 0;
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xfs_dqunlock(dqp);
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}
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/*
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* This is called to attempt to lock the dquot associated with this
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* dquot log item. Don't sleep on the dquot lock or the flush lock.
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* If the flush lock is already held, indicating that the dquot has
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* been or is in the process of being flushed, then see if we can
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* find the dquot's buffer in the buffer cache without sleeping. If
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* we can and it is marked delayed write, then we want to send it out.
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* We delay doing so until the push routine, though, to avoid sleeping
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* in any device strategy routines.
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*/
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STATIC uint
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xfs_qm_dquot_logitem_trylock(
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xfs_dq_logitem_t *qip)
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{
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xfs_dquot_t *dqp;
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uint retval;
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dqp = qip->qli_dquot;
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if (dqp->q_pincount > 0)
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return (XFS_ITEM_PINNED);
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if (! xfs_qm_dqlock_nowait(dqp))
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return (XFS_ITEM_LOCKED);
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retval = XFS_ITEM_SUCCESS;
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if (! xfs_qm_dqflock_nowait(dqp)) {
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/*
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* The dquot is already being flushed. It may have been
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* flushed delayed write, however, and we don't want to
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* get stuck waiting for that to complete. So, we want to check
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* to see if we can lock the dquot's buffer without sleeping.
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* If we can and it is marked for delayed write, then we
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* hold it and send it out from the push routine. We don't
|
|
|
|
* want to do that now since we might sleep in the device
|
|
|
|
* strategy routine. We also don't want to grab the buffer lock
|
|
|
|
* here because we'd like not to call into the buffer cache
|
2007-10-11 15:36:05 +08:00
|
|
|
* while holding the AIL lock.
|
2005-04-17 06:20:36 +08:00
|
|
|
* Make sure to only return PUSHBUF if we set pushbuf_flag
|
|
|
|
* ourselves. If someone else is doing it then we don't
|
|
|
|
* want to go to the push routine and duplicate their efforts.
|
|
|
|
*/
|
|
|
|
if (qip->qli_pushbuf_flag == 0) {
|
|
|
|
qip->qli_pushbuf_flag = 1;
|
|
|
|
ASSERT(qip->qli_format.qlf_blkno == dqp->q_blkno);
|
|
|
|
#ifdef DEBUG
|
2006-01-12 07:29:53 +08:00
|
|
|
qip->qli_push_owner = current_pid();
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|
|
|
|
/*
|
|
|
|
* The dquot is left locked.
|
|
|
|
*/
|
|
|
|
retval = XFS_ITEM_PUSHBUF;
|
|
|
|
} else {
|
|
|
|
retval = XFS_ITEM_FLUSHING;
|
|
|
|
xfs_dqunlock_nonotify(dqp);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
ASSERT(qip->qli_item.li_flags & XFS_LI_IN_AIL);
|
|
|
|
return (retval);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Unlock the dquot associated with the log item.
|
|
|
|
* Clear the fields of the dquot and dquot log item that
|
|
|
|
* are specific to the current transaction. If the
|
|
|
|
* hold flags is set, do not unlock the dquot.
|
|
|
|
*/
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_dquot_logitem_unlock(
|
|
|
|
xfs_dq_logitem_t *ql)
|
|
|
|
{
|
|
|
|
xfs_dquot_t *dqp;
|
|
|
|
|
|
|
|
ASSERT(ql != NULL);
|
|
|
|
dqp = ql->qli_dquot;
|
|
|
|
ASSERT(XFS_DQ_IS_LOCKED(dqp));
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Clear the transaction pointer in the dquot
|
|
|
|
*/
|
|
|
|
dqp->q_transp = NULL;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* dquots are never 'held' from getting unlocked at the end of
|
|
|
|
* a transaction. Their locking and unlocking is hidden inside the
|
|
|
|
* transaction layer, within trans_commit. Hence, no LI_HOLD flag
|
|
|
|
* for the logitem.
|
|
|
|
*/
|
|
|
|
xfs_dqunlock(dqp);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* this needs to stamp an lsn into the dquot, I think.
|
|
|
|
* rpc's that look at user dquot's would then have to
|
|
|
|
* push on the dependency recorded in the dquot
|
|
|
|
*/
|
|
|
|
/* ARGSUSED */
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_dquot_logitem_committing(
|
|
|
|
xfs_dq_logitem_t *l,
|
|
|
|
xfs_lsn_t lsn)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is the ops vector for dquots
|
|
|
|
*/
|
2007-02-10 15:34:56 +08:00
|
|
|
static struct xfs_item_ops xfs_dquot_item_ops = {
|
2005-04-17 06:20:36 +08:00
|
|
|
.iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_size,
|
|
|
|
.iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
|
|
|
|
xfs_qm_dquot_logitem_format,
|
|
|
|
.iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_pin,
|
|
|
|
.iop_unpin = (void(*)(xfs_log_item_t*, int))
|
|
|
|
xfs_qm_dquot_logitem_unpin,
|
|
|
|
.iop_unpin_remove = (void(*)(xfs_log_item_t*, xfs_trans_t*))
|
|
|
|
xfs_qm_dquot_logitem_unpin_remove,
|
|
|
|
.iop_trylock = (uint(*)(xfs_log_item_t*))
|
|
|
|
xfs_qm_dquot_logitem_trylock,
|
|
|
|
.iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_unlock,
|
|
|
|
.iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
|
|
|
|
xfs_qm_dquot_logitem_committed,
|
|
|
|
.iop_push = (void(*)(xfs_log_item_t*))xfs_qm_dquot_logitem_push,
|
|
|
|
.iop_pushbuf = (void(*)(xfs_log_item_t*))
|
|
|
|
xfs_qm_dquot_logitem_pushbuf,
|
|
|
|
.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
|
|
|
|
xfs_qm_dquot_logitem_committing
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Initialize the dquot log item for a newly allocated dquot.
|
|
|
|
* The dquot isn't locked at this point, but it isn't on any of the lists
|
|
|
|
* either, so we don't care.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
xfs_qm_dquot_logitem_init(
|
|
|
|
struct xfs_dquot *dqp)
|
|
|
|
{
|
|
|
|
xfs_dq_logitem_t *lp;
|
|
|
|
lp = &dqp->q_logitem;
|
|
|
|
|
|
|
|
lp->qli_item.li_type = XFS_LI_DQUOT;
|
|
|
|
lp->qli_item.li_ops = &xfs_dquot_item_ops;
|
|
|
|
lp->qli_item.li_mountp = dqp->q_mount;
|
|
|
|
lp->qli_dquot = dqp;
|
|
|
|
lp->qli_format.qlf_type = XFS_LI_DQUOT;
|
2005-11-02 12:01:12 +08:00
|
|
|
lp->qli_format.qlf_id = be32_to_cpu(dqp->q_core.d_id);
|
2005-04-17 06:20:36 +08:00
|
|
|
lp->qli_format.qlf_blkno = dqp->q_blkno;
|
|
|
|
lp->qli_format.qlf_len = 1;
|
|
|
|
/*
|
|
|
|
* This is just the offset of this dquot within its buffer
|
|
|
|
* (which is currently 1 FSB and probably won't change).
|
|
|
|
* Hence 32 bits for this offset should be just fine.
|
|
|
|
* Alternatively, we can store (bufoffset / sizeof(xfs_dqblk_t))
|
|
|
|
* here, and recompute it at recovery time.
|
|
|
|
*/
|
|
|
|
lp->qli_format.qlf_boffset = (__uint32_t)dqp->q_bufoffset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*------------------ QUOTAOFF LOG ITEMS -------------------*/
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This returns the number of iovecs needed to log the given quotaoff item.
|
|
|
|
* We only need 1 iovec for an quotaoff item. It just logs the
|
|
|
|
* quotaoff_log_format structure.
|
|
|
|
*/
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC uint
|
|
|
|
xfs_qm_qoff_logitem_size(xfs_qoff_logitem_t *qf)
|
|
|
|
{
|
|
|
|
return (1);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is called to fill in the vector of log iovecs for the
|
|
|
|
* given quotaoff log item. We use only 1 iovec, and we point that
|
|
|
|
* at the quotaoff_log_format structure embedded in the quotaoff item.
|
|
|
|
* It is at this point that we assert that all of the extent
|
|
|
|
* slots in the quotaoff item have been filled.
|
|
|
|
*/
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t *qf,
|
|
|
|
xfs_log_iovec_t *log_vector)
|
|
|
|
{
|
|
|
|
ASSERT(qf->qql_format.qf_type == XFS_LI_QUOTAOFF);
|
|
|
|
|
|
|
|
log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
|
|
|
|
log_vector->i_len = sizeof(xfs_qoff_logitem_t);
|
2005-09-02 14:42:05 +08:00
|
|
|
XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_QUOTAOFF);
|
2005-04-17 06:20:36 +08:00
|
|
|
qf->qql_format.qf_size = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Pinning has no meaning for an quotaoff item, so just return.
|
|
|
|
*/
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoff_logitem_pin(xfs_qoff_logitem_t *qf)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Since pinning has no meaning for an quotaoff item, unpinning does
|
|
|
|
* not either.
|
|
|
|
*/
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoff_logitem_unpin(xfs_qoff_logitem_t *qf, int stale)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoff_logitem_unpin_remove(xfs_qoff_logitem_t *qf, xfs_trans_t *tp)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Quotaoff items have no locking, so just return success.
|
|
|
|
*/
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC uint
|
|
|
|
xfs_qm_qoff_logitem_trylock(xfs_qoff_logitem_t *qf)
|
|
|
|
{
|
|
|
|
return XFS_ITEM_LOCKED;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Quotaoff items have no locking or pushing, so return failure
|
|
|
|
* so that the caller doesn't bother with us.
|
|
|
|
*/
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoff_logitem_unlock(xfs_qoff_logitem_t *qf)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The quotaoff-start-item is logged only once and cannot be moved in the log,
|
|
|
|
* so simply return the lsn at which it's been logged.
|
|
|
|
*/
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC xfs_lsn_t
|
|
|
|
xfs_qm_qoff_logitem_committed(xfs_qoff_logitem_t *qf, xfs_lsn_t lsn)
|
|
|
|
{
|
|
|
|
return (lsn);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* There isn't much you can do to push on an quotaoff item. It is simply
|
|
|
|
* stuck waiting for the log to be flushed to disk.
|
|
|
|
*/
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoff_logitem_push(xfs_qoff_logitem_t *qf)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*ARGSUSED*/
|
|
|
|
STATIC xfs_lsn_t
|
|
|
|
xfs_qm_qoffend_logitem_committed(
|
|
|
|
xfs_qoff_logitem_t *qfe,
|
|
|
|
xfs_lsn_t lsn)
|
|
|
|
{
|
|
|
|
xfs_qoff_logitem_t *qfs;
|
|
|
|
|
|
|
|
qfs = qfe->qql_start_lip;
|
2007-10-11 15:36:05 +08:00
|
|
|
spin_lock(&qfs->qql_item.li_mountp->m_ail_lock);
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* Delete the qoff-start logitem from the AIL.
|
|
|
|
* xfs_trans_delete_ail() drops the AIL lock.
|
|
|
|
*/
|
2007-10-11 15:36:05 +08:00
|
|
|
xfs_trans_delete_ail(qfs->qql_item.li_mountp, (xfs_log_item_t *)qfs);
|
2005-04-17 06:20:36 +08:00
|
|
|
kmem_free(qfs, sizeof(xfs_qoff_logitem_t));
|
|
|
|
kmem_free(qfe, sizeof(xfs_qoff_logitem_t));
|
|
|
|
return (xfs_lsn_t)-1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* XXX rcc - don't know quite what to do with this. I think we can
|
|
|
|
* just ignore it. The only time that isn't the case is if we allow
|
|
|
|
* the client to somehow see that quotas have been turned off in which
|
|
|
|
* we can't allow that to get back until the quotaoff hits the disk.
|
|
|
|
* So how would that happen? Also, do we need different routines for
|
|
|
|
* quotaoff start and quotaoff end? I suspect the answer is yes but
|
|
|
|
* to be sure, I need to look at the recovery code and see how quota off
|
|
|
|
* recovery is handled (do we roll forward or back or do something else).
|
|
|
|
* If we roll forwards or backwards, then we need two separate routines,
|
|
|
|
* one that does nothing and one that stamps in the lsn that matters
|
|
|
|
* (truly makes the quotaoff irrevocable). If we do something else,
|
|
|
|
* then maybe we don't need two.
|
|
|
|
*/
|
|
|
|
/* ARGSUSED */
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoff_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ARGSUSED */
|
|
|
|
STATIC void
|
|
|
|
xfs_qm_qoffend_logitem_committing(xfs_qoff_logitem_t *qip, xfs_lsn_t commit_lsn)
|
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2007-02-10 15:34:56 +08:00
|
|
|
static struct xfs_item_ops xfs_qm_qoffend_logitem_ops = {
|
2005-04-17 06:20:36 +08:00
|
|
|
.iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
|
|
|
|
.iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
|
|
|
|
xfs_qm_qoff_logitem_format,
|
|
|
|
.iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
|
|
|
|
.iop_unpin = (void(*)(xfs_log_item_t* ,int))
|
|
|
|
xfs_qm_qoff_logitem_unpin,
|
|
|
|
.iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
|
|
|
|
xfs_qm_qoff_logitem_unpin_remove,
|
|
|
|
.iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
|
|
|
|
.iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
|
|
|
|
.iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
|
|
|
|
xfs_qm_qoffend_logitem_committed,
|
|
|
|
.iop_push = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
|
|
|
|
.iop_pushbuf = NULL,
|
|
|
|
.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
|
|
|
|
xfs_qm_qoffend_logitem_committing
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* This is the ops vector shared by all quotaoff-start log items.
|
|
|
|
*/
|
2007-02-10 15:34:56 +08:00
|
|
|
static struct xfs_item_ops xfs_qm_qoff_logitem_ops = {
|
2005-04-17 06:20:36 +08:00
|
|
|
.iop_size = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_size,
|
|
|
|
.iop_format = (void(*)(xfs_log_item_t*, xfs_log_iovec_t*))
|
|
|
|
xfs_qm_qoff_logitem_format,
|
|
|
|
.iop_pin = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_pin,
|
|
|
|
.iop_unpin = (void(*)(xfs_log_item_t*, int))
|
|
|
|
xfs_qm_qoff_logitem_unpin,
|
|
|
|
.iop_unpin_remove = (void(*)(xfs_log_item_t*,xfs_trans_t*))
|
|
|
|
xfs_qm_qoff_logitem_unpin_remove,
|
|
|
|
.iop_trylock = (uint(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_trylock,
|
|
|
|
.iop_unlock = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_unlock,
|
|
|
|
.iop_committed = (xfs_lsn_t(*)(xfs_log_item_t*, xfs_lsn_t))
|
|
|
|
xfs_qm_qoff_logitem_committed,
|
|
|
|
.iop_push = (void(*)(xfs_log_item_t*))xfs_qm_qoff_logitem_push,
|
|
|
|
.iop_pushbuf = NULL,
|
|
|
|
.iop_committing = (void(*)(xfs_log_item_t*, xfs_lsn_t))
|
|
|
|
xfs_qm_qoff_logitem_committing
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Allocate and initialize an quotaoff item of the correct quota type(s).
|
|
|
|
*/
|
|
|
|
xfs_qoff_logitem_t *
|
|
|
|
xfs_qm_qoff_logitem_init(
|
|
|
|
struct xfs_mount *mp,
|
|
|
|
xfs_qoff_logitem_t *start,
|
|
|
|
uint flags)
|
|
|
|
{
|
|
|
|
xfs_qoff_logitem_t *qf;
|
|
|
|
|
|
|
|
qf = (xfs_qoff_logitem_t*) kmem_zalloc(sizeof(xfs_qoff_logitem_t), KM_SLEEP);
|
|
|
|
|
|
|
|
qf->qql_item.li_type = XFS_LI_QUOTAOFF;
|
|
|
|
if (start)
|
|
|
|
qf->qql_item.li_ops = &xfs_qm_qoffend_logitem_ops;
|
|
|
|
else
|
|
|
|
qf->qql_item.li_ops = &xfs_qm_qoff_logitem_ops;
|
|
|
|
qf->qql_item.li_mountp = mp;
|
|
|
|
qf->qql_format.qf_type = XFS_LI_QUOTAOFF;
|
|
|
|
qf->qql_format.qf_flags = flags;
|
|
|
|
qf->qql_start_lip = start;
|
|
|
|
return (qf);
|
|
|
|
}
|