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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/xfs/xfs_trans_dquot.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/xfs/xfs_trans_dquot.c')
-rw-r--r--ANDROID_3.4.5/fs/xfs/xfs_trans_dquot.c889
1 files changed, 0 insertions, 889 deletions
diff --git a/ANDROID_3.4.5/fs/xfs/xfs_trans_dquot.c b/ANDROID_3.4.5/fs/xfs/xfs_trans_dquot.c
deleted file mode 100644
index 27909971..00000000
--- a/ANDROID_3.4.5/fs/xfs/xfs_trans_dquot.c
+++ /dev/null
@@ -1,889 +0,0 @@
-/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
-#include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_inode.h"
-#include "xfs_itable.h"
-#include "xfs_bmap.h"
-#include "xfs_rtalloc.h"
-#include "xfs_error.h"
-#include "xfs_attr.h"
-#include "xfs_buf_item.h"
-#include "xfs_trans_priv.h"
-#include "xfs_qm.h"
-
-STATIC void xfs_trans_alloc_dqinfo(xfs_trans_t *);
-
-/*
- * Add the locked dquot to the transaction.
- * The dquot must be locked, and it cannot be associated with any
- * transaction.
- */
-void
-xfs_trans_dqjoin(
- xfs_trans_t *tp,
- xfs_dquot_t *dqp)
-{
- ASSERT(dqp->q_transp != tp);
- ASSERT(XFS_DQ_IS_LOCKED(dqp));
- ASSERT(dqp->q_logitem.qli_dquot == dqp);
-
- /*
- * Get a log_item_desc to point at the new item.
- */
- xfs_trans_add_item(tp, &dqp->q_logitem.qli_item);
-
- /*
- * Initialize d_transp so we can later determine if this dquot is
- * associated with this transaction.
- */
- dqp->q_transp = tp;
-}
-
-
-/*
- * This is called to mark the dquot as needing
- * to be logged when the transaction is committed. The dquot must
- * already be associated with the given transaction.
- * Note that it marks the entire transaction as dirty. In the ordinary
- * case, this gets called via xfs_trans_commit, after the transaction
- * is already dirty. However, there's nothing stop this from getting
- * called directly, as done by xfs_qm_scall_setqlim. Hence, the TRANS_DIRTY
- * flag.
- */
-void
-xfs_trans_log_dquot(
- xfs_trans_t *tp,
- xfs_dquot_t *dqp)
-{
- ASSERT(dqp->q_transp == tp);
- ASSERT(XFS_DQ_IS_LOCKED(dqp));
-
- tp->t_flags |= XFS_TRANS_DIRTY;
- dqp->q_logitem.qli_item.li_desc->lid_flags |= XFS_LID_DIRTY;
-}
-
-/*
- * Carry forward whatever is left of the quota blk reservation to
- * the spanky new transaction
- */
-void
-xfs_trans_dup_dqinfo(
- xfs_trans_t *otp,
- xfs_trans_t *ntp)
-{
- xfs_dqtrx_t *oq, *nq;
- int i,j;
- xfs_dqtrx_t *oqa, *nqa;
-
- if (!otp->t_dqinfo)
- return;
-
- xfs_trans_alloc_dqinfo(ntp);
- oqa = otp->t_dqinfo->dqa_usrdquots;
- nqa = ntp->t_dqinfo->dqa_usrdquots;
-
- /*
- * Because the quota blk reservation is carried forward,
- * it is also necessary to carry forward the DQ_DIRTY flag.
- */
- if(otp->t_flags & XFS_TRANS_DQ_DIRTY)
- ntp->t_flags |= XFS_TRANS_DQ_DIRTY;
-
- for (j = 0; j < 2; j++) {
- for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
- if (oqa[i].qt_dquot == NULL)
- break;
- oq = &oqa[i];
- nq = &nqa[i];
-
- nq->qt_dquot = oq->qt_dquot;
- nq->qt_bcount_delta = nq->qt_icount_delta = 0;
- nq->qt_rtbcount_delta = 0;
-
- /*
- * Transfer whatever is left of the reservations.
- */
- nq->qt_blk_res = oq->qt_blk_res - oq->qt_blk_res_used;
- oq->qt_blk_res = oq->qt_blk_res_used;
-
- nq->qt_rtblk_res = oq->qt_rtblk_res -
- oq->qt_rtblk_res_used;
- oq->qt_rtblk_res = oq->qt_rtblk_res_used;
-
- nq->qt_ino_res = oq->qt_ino_res - oq->qt_ino_res_used;
- oq->qt_ino_res = oq->qt_ino_res_used;
-
- }
- oqa = otp->t_dqinfo->dqa_grpdquots;
- nqa = ntp->t_dqinfo->dqa_grpdquots;
- }
-}
-
-/*
- * Wrap around mod_dquot to account for both user and group quotas.
- */
-void
-xfs_trans_mod_dquot_byino(
- xfs_trans_t *tp,
- xfs_inode_t *ip,
- uint field,
- long delta)
-{
- xfs_mount_t *mp = tp->t_mountp;
-
- if (!XFS_IS_QUOTA_RUNNING(mp) ||
- !XFS_IS_QUOTA_ON(mp) ||
- ip->i_ino == mp->m_sb.sb_uquotino ||
- ip->i_ino == mp->m_sb.sb_gquotino)
- return;
-
- if (tp->t_dqinfo == NULL)
- xfs_trans_alloc_dqinfo(tp);
-
- if (XFS_IS_UQUOTA_ON(mp) && ip->i_udquot)
- (void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta);
- if (XFS_IS_OQUOTA_ON(mp) && ip->i_gdquot)
- (void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta);
-}
-
-STATIC xfs_dqtrx_t *
-xfs_trans_get_dqtrx(
- xfs_trans_t *tp,
- xfs_dquot_t *dqp)
-{
- int i;
- xfs_dqtrx_t *qa;
-
- qa = XFS_QM_ISUDQ(dqp) ?
- tp->t_dqinfo->dqa_usrdquots : tp->t_dqinfo->dqa_grpdquots;
-
- for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
- if (qa[i].qt_dquot == NULL ||
- qa[i].qt_dquot == dqp)
- return &qa[i];
- }
-
- return NULL;
-}
-
-/*
- * Make the changes in the transaction structure.
- * The moral equivalent to xfs_trans_mod_sb().
- * We don't touch any fields in the dquot, so we don't care
- * if it's locked or not (most of the time it won't be).
- */
-void
-xfs_trans_mod_dquot(
- xfs_trans_t *tp,
- xfs_dquot_t *dqp,
- uint field,
- long delta)
-{
- xfs_dqtrx_t *qtrx;
-
- ASSERT(tp);
- ASSERT(XFS_IS_QUOTA_RUNNING(tp->t_mountp));
- qtrx = NULL;
-
- if (tp->t_dqinfo == NULL)
- xfs_trans_alloc_dqinfo(tp);
- /*
- * Find either the first free slot or the slot that belongs
- * to this dquot.
- */
- qtrx = xfs_trans_get_dqtrx(tp, dqp);
- ASSERT(qtrx);
- if (qtrx->qt_dquot == NULL)
- qtrx->qt_dquot = dqp;
-
- switch (field) {
-
- /*
- * regular disk blk reservation
- */
- case XFS_TRANS_DQ_RES_BLKS:
- qtrx->qt_blk_res += (ulong)delta;
- break;
-
- /*
- * inode reservation
- */
- case XFS_TRANS_DQ_RES_INOS:
- qtrx->qt_ino_res += (ulong)delta;
- break;
-
- /*
- * disk blocks used.
- */
- case XFS_TRANS_DQ_BCOUNT:
- if (qtrx->qt_blk_res && delta > 0) {
- qtrx->qt_blk_res_used += (ulong)delta;
- ASSERT(qtrx->qt_blk_res >= qtrx->qt_blk_res_used);
- }
- qtrx->qt_bcount_delta += delta;
- break;
-
- case XFS_TRANS_DQ_DELBCOUNT:
- qtrx->qt_delbcnt_delta += delta;
- break;
-
- /*
- * Inode Count
- */
- case XFS_TRANS_DQ_ICOUNT:
- if (qtrx->qt_ino_res && delta > 0) {
- qtrx->qt_ino_res_used += (ulong)delta;
- ASSERT(qtrx->qt_ino_res >= qtrx->qt_ino_res_used);
- }
- qtrx->qt_icount_delta += delta;
- break;
-
- /*
- * rtblk reservation
- */
- case XFS_TRANS_DQ_RES_RTBLKS:
- qtrx->qt_rtblk_res += (ulong)delta;
- break;
-
- /*
- * rtblk count
- */
- case XFS_TRANS_DQ_RTBCOUNT:
- if (qtrx->qt_rtblk_res && delta > 0) {
- qtrx->qt_rtblk_res_used += (ulong)delta;
- ASSERT(qtrx->qt_rtblk_res >= qtrx->qt_rtblk_res_used);
- }
- qtrx->qt_rtbcount_delta += delta;
- break;
-
- case XFS_TRANS_DQ_DELRTBCOUNT:
- qtrx->qt_delrtb_delta += delta;
- break;
-
- default:
- ASSERT(0);
- }
- tp->t_flags |= XFS_TRANS_DQ_DIRTY;
-}
-
-
-/*
- * Given an array of dqtrx structures, lock all the dquots associated
- * and join them to the transaction, provided they have been modified.
- * We know that the highest number of dquots (of one type - usr OR grp),
- * involved in a transaction is 2 and that both usr and grp combined - 3.
- * So, we don't attempt to make this very generic.
- */
-STATIC void
-xfs_trans_dqlockedjoin(
- xfs_trans_t *tp,
- xfs_dqtrx_t *q)
-{
- ASSERT(q[0].qt_dquot != NULL);
- if (q[1].qt_dquot == NULL) {
- xfs_dqlock(q[0].qt_dquot);
- xfs_trans_dqjoin(tp, q[0].qt_dquot);
- } else {
- ASSERT(XFS_QM_TRANS_MAXDQS == 2);
- xfs_dqlock2(q[0].qt_dquot, q[1].qt_dquot);
- xfs_trans_dqjoin(tp, q[0].qt_dquot);
- xfs_trans_dqjoin(tp, q[1].qt_dquot);
- }
-}
-
-
-/*
- * Called by xfs_trans_commit() and similar in spirit to
- * xfs_trans_apply_sb_deltas().
- * Go thru all the dquots belonging to this transaction and modify the
- * INCORE dquot to reflect the actual usages.
- * Unreserve just the reservations done by this transaction.
- * dquot is still left locked at exit.
- */
-void
-xfs_trans_apply_dquot_deltas(
- xfs_trans_t *tp)
-{
- int i, j;
- xfs_dquot_t *dqp;
- xfs_dqtrx_t *qtrx, *qa;
- xfs_disk_dquot_t *d;
- long totalbdelta;
- long totalrtbdelta;
-
- if (!(tp->t_flags & XFS_TRANS_DQ_DIRTY))
- return;
-
- ASSERT(tp->t_dqinfo);
- qa = tp->t_dqinfo->dqa_usrdquots;
- for (j = 0; j < 2; j++) {
- if (qa[0].qt_dquot == NULL) {
- qa = tp->t_dqinfo->dqa_grpdquots;
- continue;
- }
-
- /*
- * Lock all of the dquots and join them to the transaction.
- */
- xfs_trans_dqlockedjoin(tp, qa);
-
- for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
- qtrx = &qa[i];
- /*
- * The array of dquots is filled
- * sequentially, not sparsely.
- */
- if ((dqp = qtrx->qt_dquot) == NULL)
- break;
-
- ASSERT(XFS_DQ_IS_LOCKED(dqp));
- ASSERT(dqp->q_transp == tp);
-
- /*
- * adjust the actual number of blocks used
- */
- d = &dqp->q_core;
-
- /*
- * The issue here is - sometimes we don't make a blkquota
- * reservation intentionally to be fair to users
- * (when the amount is small). On the other hand,
- * delayed allocs do make reservations, but that's
- * outside of a transaction, so we have no
- * idea how much was really reserved.
- * So, here we've accumulated delayed allocation blks and
- * non-delay blks. The assumption is that the
- * delayed ones are always reserved (outside of a
- * transaction), and the others may or may not have
- * quota reservations.
- */
- totalbdelta = qtrx->qt_bcount_delta +
- qtrx->qt_delbcnt_delta;
- totalrtbdelta = qtrx->qt_rtbcount_delta +
- qtrx->qt_delrtb_delta;
-#ifdef DEBUG
- if (totalbdelta < 0)
- ASSERT(be64_to_cpu(d->d_bcount) >=
- -totalbdelta);
-
- if (totalrtbdelta < 0)
- ASSERT(be64_to_cpu(d->d_rtbcount) >=
- -totalrtbdelta);
-
- if (qtrx->qt_icount_delta < 0)
- ASSERT(be64_to_cpu(d->d_icount) >=
- -qtrx->qt_icount_delta);
-#endif
- if (totalbdelta)
- be64_add_cpu(&d->d_bcount, (xfs_qcnt_t)totalbdelta);
-
- if (qtrx->qt_icount_delta)
- be64_add_cpu(&d->d_icount, (xfs_qcnt_t)qtrx->qt_icount_delta);
-
- if (totalrtbdelta)
- be64_add_cpu(&d->d_rtbcount, (xfs_qcnt_t)totalrtbdelta);
-
- /*
- * Get any default limits in use.
- * Start/reset the timer(s) if needed.
- */
- if (d->d_id) {
- xfs_qm_adjust_dqlimits(tp->t_mountp, d);
- xfs_qm_adjust_dqtimers(tp->t_mountp, d);
- }
-
- dqp->dq_flags |= XFS_DQ_DIRTY;
- /*
- * add this to the list of items to get logged
- */
- xfs_trans_log_dquot(tp, dqp);
- /*
- * Take off what's left of the original reservation.
- * In case of delayed allocations, there's no
- * reservation that a transaction structure knows of.
- */
- if (qtrx->qt_blk_res != 0) {
- if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) {
- if (qtrx->qt_blk_res >
- qtrx->qt_blk_res_used)
- dqp->q_res_bcount -= (xfs_qcnt_t)
- (qtrx->qt_blk_res -
- qtrx->qt_blk_res_used);
- else
- dqp->q_res_bcount -= (xfs_qcnt_t)
- (qtrx->qt_blk_res_used -
- qtrx->qt_blk_res);
- }
- } else {
- /*
- * These blks were never reserved, either inside
- * a transaction or outside one (in a delayed
- * allocation). Also, this isn't always a
- * negative number since we sometimes
- * deliberately skip quota reservations.
- */
- if (qtrx->qt_bcount_delta) {
- dqp->q_res_bcount +=
- (xfs_qcnt_t)qtrx->qt_bcount_delta;
- }
- }
- /*
- * Adjust the RT reservation.
- */
- if (qtrx->qt_rtblk_res != 0) {
- if (qtrx->qt_rtblk_res != qtrx->qt_rtblk_res_used) {
- if (qtrx->qt_rtblk_res >
- qtrx->qt_rtblk_res_used)
- dqp->q_res_rtbcount -= (xfs_qcnt_t)
- (qtrx->qt_rtblk_res -
- qtrx->qt_rtblk_res_used);
- else
- dqp->q_res_rtbcount -= (xfs_qcnt_t)
- (qtrx->qt_rtblk_res_used -
- qtrx->qt_rtblk_res);
- }
- } else {
- if (qtrx->qt_rtbcount_delta)
- dqp->q_res_rtbcount +=
- (xfs_qcnt_t)qtrx->qt_rtbcount_delta;
- }
-
- /*
- * Adjust the inode reservation.
- */
- if (qtrx->qt_ino_res != 0) {
- ASSERT(qtrx->qt_ino_res >=
- qtrx->qt_ino_res_used);
- if (qtrx->qt_ino_res > qtrx->qt_ino_res_used)
- dqp->q_res_icount -= (xfs_qcnt_t)
- (qtrx->qt_ino_res -
- qtrx->qt_ino_res_used);
- } else {
- if (qtrx->qt_icount_delta)
- dqp->q_res_icount +=
- (xfs_qcnt_t)qtrx->qt_icount_delta;
- }
-
- ASSERT(dqp->q_res_bcount >=
- be64_to_cpu(dqp->q_core.d_bcount));
- ASSERT(dqp->q_res_icount >=
- be64_to_cpu(dqp->q_core.d_icount));
- ASSERT(dqp->q_res_rtbcount >=
- be64_to_cpu(dqp->q_core.d_rtbcount));
- }
- /*
- * Do the group quotas next
- */
- qa = tp->t_dqinfo->dqa_grpdquots;
- }
-}
-
-/*
- * Release the reservations, and adjust the dquots accordingly.
- * This is called only when the transaction is being aborted. If by
- * any chance we have done dquot modifications incore (ie. deltas) already,
- * we simply throw those away, since that's the expected behavior
- * when a transaction is curtailed without a commit.
- */
-void
-xfs_trans_unreserve_and_mod_dquots(
- xfs_trans_t *tp)
-{
- int i, j;
- xfs_dquot_t *dqp;
- xfs_dqtrx_t *qtrx, *qa;
- boolean_t locked;
-
- if (!tp->t_dqinfo || !(tp->t_flags & XFS_TRANS_DQ_DIRTY))
- return;
-
- qa = tp->t_dqinfo->dqa_usrdquots;
-
- for (j = 0; j < 2; j++) {
- for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
- qtrx = &qa[i];
- /*
- * We assume that the array of dquots is filled
- * sequentially, not sparsely.
- */
- if ((dqp = qtrx->qt_dquot) == NULL)
- break;
- /*
- * Unreserve the original reservation. We don't care
- * about the number of blocks used field, or deltas.
- * Also we don't bother to zero the fields.
- */
- locked = B_FALSE;
- if (qtrx->qt_blk_res) {
- xfs_dqlock(dqp);
- locked = B_TRUE;
- dqp->q_res_bcount -=
- (xfs_qcnt_t)qtrx->qt_blk_res;
- }
- if (qtrx->qt_ino_res) {
- if (!locked) {
- xfs_dqlock(dqp);
- locked = B_TRUE;
- }
- dqp->q_res_icount -=
- (xfs_qcnt_t)qtrx->qt_ino_res;
- }
-
- if (qtrx->qt_rtblk_res) {
- if (!locked) {
- xfs_dqlock(dqp);
- locked = B_TRUE;
- }
- dqp->q_res_rtbcount -=
- (xfs_qcnt_t)qtrx->qt_rtblk_res;
- }
- if (locked)
- xfs_dqunlock(dqp);
-
- }
- qa = tp->t_dqinfo->dqa_grpdquots;
- }
-}
-
-STATIC void
-xfs_quota_warn(
- struct xfs_mount *mp,
- struct xfs_dquot *dqp,
- int type)
-{
- /* no warnings for project quotas - we just return ENOSPC later */
- if (dqp->dq_flags & XFS_DQ_PROJ)
- return;
- quota_send_warning((dqp->dq_flags & XFS_DQ_USER) ? USRQUOTA : GRPQUOTA,
- be32_to_cpu(dqp->q_core.d_id), mp->m_super->s_dev,
- type);
-}
-
-/*
- * This reserves disk blocks and inodes against a dquot.
- * Flags indicate if the dquot is to be locked here and also
- * if the blk reservation is for RT or regular blocks.
- * Sending in XFS_QMOPT_FORCE_RES flag skips the quota check.
- */
-STATIC int
-xfs_trans_dqresv(
- xfs_trans_t *tp,
- xfs_mount_t *mp,
- xfs_dquot_t *dqp,
- long nblks,
- long ninos,
- uint flags)
-{
- xfs_qcnt_t hardlimit;
- xfs_qcnt_t softlimit;
- time_t timer;
- xfs_qwarncnt_t warns;
- xfs_qwarncnt_t warnlimit;
- xfs_qcnt_t total_count;
- xfs_qcnt_t *resbcountp;
- xfs_quotainfo_t *q = mp->m_quotainfo;
-
-
- xfs_dqlock(dqp);
-
- if (flags & XFS_TRANS_DQ_RES_BLKS) {
- hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit);
- if (!hardlimit)
- hardlimit = q->qi_bhardlimit;
- softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit);
- if (!softlimit)
- softlimit = q->qi_bsoftlimit;
- timer = be32_to_cpu(dqp->q_core.d_btimer);
- warns = be16_to_cpu(dqp->q_core.d_bwarns);
- warnlimit = dqp->q_mount->m_quotainfo->qi_bwarnlimit;
- resbcountp = &dqp->q_res_bcount;
- } else {
- ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS);
- hardlimit = be64_to_cpu(dqp->q_core.d_rtb_hardlimit);
- if (!hardlimit)
- hardlimit = q->qi_rtbhardlimit;
- softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit);
- if (!softlimit)
- softlimit = q->qi_rtbsoftlimit;
- timer = be32_to_cpu(dqp->q_core.d_rtbtimer);
- warns = be16_to_cpu(dqp->q_core.d_rtbwarns);
- warnlimit = dqp->q_mount->m_quotainfo->qi_rtbwarnlimit;
- resbcountp = &dqp->q_res_rtbcount;
- }
-
- if ((flags & XFS_QMOPT_FORCE_RES) == 0 &&
- dqp->q_core.d_id &&
- ((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) ||
- (XFS_IS_OQUOTA_ENFORCED(dqp->q_mount) &&
- (XFS_QM_ISPDQ(dqp) || XFS_QM_ISGDQ(dqp))))) {
- if (nblks > 0) {
- /*
- * dquot is locked already. See if we'd go over the
- * hardlimit or exceed the timelimit if we allocate
- * nblks.
- */
- total_count = *resbcountp + nblks;
- if (hardlimit && total_count > hardlimit) {
- xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN);
- goto error_return;
- }
- if (softlimit && total_count > softlimit) {
- if ((timer != 0 && get_seconds() > timer) ||
- (warns != 0 && warns >= warnlimit)) {
- xfs_quota_warn(mp, dqp,
- QUOTA_NL_BSOFTLONGWARN);
- goto error_return;
- }
-
- xfs_quota_warn(mp, dqp, QUOTA_NL_BSOFTWARN);
- }
- }
- if (ninos > 0) {
- total_count = be64_to_cpu(dqp->q_core.d_icount) + ninos;
- timer = be32_to_cpu(dqp->q_core.d_itimer);
- warns = be16_to_cpu(dqp->q_core.d_iwarns);
- warnlimit = dqp->q_mount->m_quotainfo->qi_iwarnlimit;
- hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
- if (!hardlimit)
- hardlimit = q->qi_ihardlimit;
- softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
- if (!softlimit)
- softlimit = q->qi_isoftlimit;
-
- if (hardlimit && total_count > hardlimit) {
- xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN);
- goto error_return;
- }
- if (softlimit && total_count > softlimit) {
- if ((timer != 0 && get_seconds() > timer) ||
- (warns != 0 && warns >= warnlimit)) {
- xfs_quota_warn(mp, dqp,
- QUOTA_NL_ISOFTLONGWARN);
- goto error_return;
- }
- xfs_quota_warn(mp, dqp, QUOTA_NL_ISOFTWARN);
- }
- }
- }
-
- /*
- * Change the reservation, but not the actual usage.
- * Note that q_res_bcount = q_core.d_bcount + resv
- */
- (*resbcountp) += (xfs_qcnt_t)nblks;
- if (ninos != 0)
- dqp->q_res_icount += (xfs_qcnt_t)ninos;
-
- /*
- * note the reservation amt in the trans struct too,
- * so that the transaction knows how much was reserved by
- * it against this particular dquot.
- * We don't do this when we are reserving for a delayed allocation,
- * because we don't have the luxury of a transaction envelope then.
- */
- if (tp) {
- ASSERT(tp->t_dqinfo);
- ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
- if (nblks != 0)
- xfs_trans_mod_dquot(tp, dqp,
- flags & XFS_QMOPT_RESBLK_MASK,
- nblks);
- if (ninos != 0)
- xfs_trans_mod_dquot(tp, dqp,
- XFS_TRANS_DQ_RES_INOS,
- ninos);
- }
- ASSERT(dqp->q_res_bcount >= be64_to_cpu(dqp->q_core.d_bcount));
- ASSERT(dqp->q_res_rtbcount >= be64_to_cpu(dqp->q_core.d_rtbcount));
- ASSERT(dqp->q_res_icount >= be64_to_cpu(dqp->q_core.d_icount));
-
- xfs_dqunlock(dqp);
- return 0;
-
-error_return:
- xfs_dqunlock(dqp);
- if (flags & XFS_QMOPT_ENOSPC)
- return ENOSPC;
- return EDQUOT;
-}
-
-
-/*
- * Given dquot(s), make disk block and/or inode reservations against them.
- * The fact that this does the reservation against both the usr and
- * grp/prj quotas is important, because this follows a both-or-nothing
- * approach.
- *
- * flags = XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown.
- * XFS_QMOPT_ENOSPC returns ENOSPC not EDQUOT. Used by pquota.
- * XFS_TRANS_DQ_RES_BLKS reserves regular disk blocks
- * XFS_TRANS_DQ_RES_RTBLKS reserves realtime disk blocks
- * dquots are unlocked on return, if they were not locked by caller.
- */
-int
-xfs_trans_reserve_quota_bydquots(
- xfs_trans_t *tp,
- xfs_mount_t *mp,
- xfs_dquot_t *udqp,
- xfs_dquot_t *gdqp,
- long nblks,
- long ninos,
- uint flags)
-{
- int resvd = 0, error;
-
- if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
- return 0;
-
- if (tp && tp->t_dqinfo == NULL)
- xfs_trans_alloc_dqinfo(tp);
-
- ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
-
- if (udqp) {
- error = xfs_trans_dqresv(tp, mp, udqp, nblks, ninos,
- (flags & ~XFS_QMOPT_ENOSPC));
- if (error)
- return error;
- resvd = 1;
- }
-
- if (gdqp) {
- error = xfs_trans_dqresv(tp, mp, gdqp, nblks, ninos, flags);
- if (error) {
- /*
- * can't do it, so backout previous reservation
- */
- if (resvd) {
- flags |= XFS_QMOPT_FORCE_RES;
- xfs_trans_dqresv(tp, mp, udqp,
- -nblks, -ninos, flags);
- }
- return error;
- }
- }
-
- /*
- * Didn't change anything critical, so, no need to log
- */
- return 0;
-}
-
-
-/*
- * Lock the dquot and change the reservation if we can.
- * This doesn't change the actual usage, just the reservation.
- * The inode sent in is locked.
- */
-int
-xfs_trans_reserve_quota_nblks(
- struct xfs_trans *tp,
- struct xfs_inode *ip,
- long nblks,
- long ninos,
- uint flags)
-{
- struct xfs_mount *mp = ip->i_mount;
-
- if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
- return 0;
- if (XFS_IS_PQUOTA_ON(mp))
- flags |= XFS_QMOPT_ENOSPC;
-
- ASSERT(ip->i_ino != mp->m_sb.sb_uquotino);
- ASSERT(ip->i_ino != mp->m_sb.sb_gquotino);
-
- ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
- ASSERT((flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
- XFS_TRANS_DQ_RES_RTBLKS ||
- (flags & ~(XFS_QMOPT_FORCE_RES | XFS_QMOPT_ENOSPC)) ==
- XFS_TRANS_DQ_RES_BLKS);
-
- /*
- * Reserve nblks against these dquots, with trans as the mediator.
- */
- return xfs_trans_reserve_quota_bydquots(tp, mp,
- ip->i_udquot, ip->i_gdquot,
- nblks, ninos, flags);
-}
-
-/*
- * This routine is called to allocate a quotaoff log item.
- */
-xfs_qoff_logitem_t *
-xfs_trans_get_qoff_item(
- xfs_trans_t *tp,
- xfs_qoff_logitem_t *startqoff,
- uint flags)
-{
- xfs_qoff_logitem_t *q;
-
- ASSERT(tp != NULL);
-
- q = xfs_qm_qoff_logitem_init(tp->t_mountp, startqoff, flags);
- ASSERT(q != NULL);
-
- /*
- * Get a log_item_desc to point at the new item.
- */
- xfs_trans_add_item(tp, &q->qql_item);
- return q;
-}
-
-
-/*
- * This is called to mark the quotaoff logitem as needing
- * to be logged when the transaction is committed. The logitem must
- * already be associated with the given transaction.
- */
-void
-xfs_trans_log_quotaoff_item(
- xfs_trans_t *tp,
- xfs_qoff_logitem_t *qlp)
-{
- tp->t_flags |= XFS_TRANS_DIRTY;
- qlp->qql_item.li_desc->lid_flags |= XFS_LID_DIRTY;
-}
-
-STATIC void
-xfs_trans_alloc_dqinfo(
- xfs_trans_t *tp)
-{
- tp->t_dqinfo = kmem_zone_zalloc(xfs_qm_dqtrxzone, KM_SLEEP);
-}
-
-void
-xfs_trans_free_dqinfo(
- xfs_trans_t *tp)
-{
- if (!tp->t_dqinfo)
- return;
- kmem_zone_free(xfs_qm_dqtrxzone, tp->t_dqinfo);
- tp->t_dqinfo = NULL;
-}