File: [Development] / xfs-linux / Attic / xfs_trans_dquot.c (download)
Revision 1.2, Thu May 16 03:58:12 1996 UTC (21 years, 5 months ago) by sup
Branch: MAIN
Changes since 1.1: +4 -4
lines
Took out debug messages inadvertently left behind, that caused non-DEBUG builds to fail
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#ident "$Revision: 1.2 $"
#ifdef SIM
#define _KERNEL 1
#endif
#include <sys/param.h>
#include <sys/buf.h>
#include <sys/vnode.h>
#include <sys/uuid.h>
#ifdef SIM
#undef _KERNEL
#endif
#include <sys/errno.h>
#include <sys/kmem.h>
#include <sys/debug.h>
#include <sys/proc.h>
#include <sys/cmn_err.h>
#include <sys/atomic_ops.h>
#ifdef SIM
#include <bstring.h>
#else
#include <sys/systm.h>
#endif
#include "xfs_macros.h"
#include "xfs_types.h"
#include "xfs_inum.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_mount.h"
#include "xfs_alloc_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_ialloc_btree.h"
#include "xfs_alloc.h"
#include "xfs_bmap.h"
#include "xfs_btree.h"
#include "xfs_bmap.h"
#include "xfs_attr_sf.h"
#include "xfs_dir_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode_item.h"
#include "xfs_inode.h"
#include "xfs_trans_priv.h"
#include "xfs_buf_item.h"
#include "xfs_quota.h"
#include "xfs_dquot.h"
#include "xfs_qm.h"
#include "xfs_quota_priv.h"
#ifdef SIM
#include "sim.h"
#include <stdio.h>
#include <stdlib.h>
#endif
STATIC
int xfs_trans_dqresv( xfs_trans_t *tp,
xfs_dquot_t *dqp,
long nblks,
xfs_qcnt_t hardlimit,
xfs_qcnt_t softlimit,
time_t btimer,
xfs_qcnt_t *resbcount,
uint flags);
STATIC
void xfs_trans_dqlockedjoin(xfs_trans_t *tp,
xfs_dqtrx_t *q);
#define XFS_QM_INIT_DQARGS(flags, dqp, hlim, slim, timer, resbcntp) { \
if ((flags) & XFS_TRANS_DQ_RES_BLKS) { \
(hlim) = (dqp)->q_core.d_blk_hardlimit;\
(slim) = (dqp)->q_core.d_blk_softlimit;\
(timer) = (dqp)->q_core.d_btimer;\
(resbcntp) = &(dqp)->q_res_bcount;\
} else if ((flags) & XFS_TRANS_DQ_RES_RTBLKS) {\
(hlim) = (dqp)->q_core.d_rtb_hardlimit;\
(slim) = (dqp)->q_core.d_rtb_softlimit;\
(timer) = (dqp)->q_core.d_rtbtimer;\
(resbcntp) = &(dqp)->q_res_rtbcount;\
} else { \
ASSERT(0);\
}\
}
#define XFS_QM_INIT_DQRESARGS(flags, dqp, resbcntp) { \
if ((flags) & XFS_TRANS_DQ_RES_BLKS) { \
(resbcntp) = &(dqp)->q_res_bcount;\
} else if ((flags) & XFS_TRANS_DQ_RES_RTBLKS) {\
(resbcntp) = &(dqp)->q_res_rtbcount;\
} else { \
ASSERT(0);\
}\
}
/*
* 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)
{
xfs_dq_logitem_t *lp;
ASSERT(! XFS_DQ_IS_ADDEDTO_TRX(tp, dqp));
ASSERT(XFS_DQ_IS_LOCKED(dqp));
ASSERT(XFS_DQ_IS_LOGITEM_INITD(dqp));
lp = &dqp->q_logitem;
ASSERT(lp->qli_flags == 0);
/*
* Get a log_item_desc to point at the new item.
*/
(void) xfs_trans_add_item(tp, (xfs_log_item_t*)(lp));
/*
* Initialize i_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.
*
*/
void
xfs_trans_log_dquot(
xfs_trans_t *tp,
xfs_dquot_t *dqp)
{
xfs_log_item_desc_t *lidp;
ASSERT(XFS_DQ_IS_ADDEDTO_TRX(tp, dqp));
ASSERT(XFS_DQ_IS_LOCKED(dqp));
lidp = xfs_trans_find_item(tp, (xfs_log_item_t*)(&dqp->q_logitem));
ASSERT(lidp != NULL);
tp->t_flags |= XFS_TRANS_DIRTY;
lidp->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;
xfs_trans_alloc_dqinfo(ntp);
oqa = otp->t_dqinfo->dqa_usrdquots;
nqa = ntp->t_dqinfo->dqa_usrdquots;
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_blk_res = oq->qt_blk_res - oq->qt_blk_res_used;
oq->qt_blk_res = oq->qt_blk_res_used;
}
oqa = otp->t_dqinfo->dqa_prjdquots;
nqa = ntp->t_dqinfo->dqa_prjdquots;
}
}
/*
* Delayed allocation purposes only XXX why???
*/
int
xfs_trans_mod_dquot_byino(
xfs_trans_t *tp,
xfs_inode_t *ip,
uint field,
long delta)
{
ASSERT(tp);
if (tp->t_dqinfo == NULL)
xfs_trans_alloc_dqinfo(tp);
if (XFS_IS_UQUOTA_ON(tp->t_mountp) && ip->i_udquot) {
(void) xfs_trans_mod_dquot(tp, ip->i_udquot, field, delta);
}
if (XFS_IS_PQUOTA_ON(tp->t_mountp) && ip->i_pdquot) {
(void) xfs_trans_mod_dquot(tp, ip->i_pdquot, field, delta);
}
return (0);
}
STATIC xfs_dqtrx_t *
xfs_trans_get_dqtrx(
xfs_trans_t *tp,
xfs_dquot_t *dqp)
{
int i;
xfs_dqtrx_t *qa;
for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
qa = XFS_QM_DQP_TO_DQACCT(tp, dqp);
if (qa[i].qt_dquot == NULL ||
qa[i].qt_dquot == dqp) {
return (&qa[i]);
}
}
return (NULL);
}
#if 0
/*
* This can be called to find out the quota reservations of a inode in a
* transaction.
* Used in debugging once upon a time, just didnt want to delete it.
*/
ulong
xfs_trans_get_quota_res(
xfs_trans_t *tp,
xfs_inode_t *ip)
{
xfs_dqtrx_t *qtrx;
ASSERT(tp->t_dqinfo);
/*
* Both udquot and pdquot have identical reservations.
* We've kept them separately here; once debugging is done,
* oneday, I'll just make it a single field.
*/
if (ip->i_udquot)
qtrx = xfs_trans_get_dqtrx(tp, ip->i_udquot);
else if (ip->i_pdquot)
qtrx = xfs_trans_get_dqtrx(tp, ip->i_pdquot);
if (qtrx->qt_dquot)
return (qtrx->qt_blk_res);
else
return (0);
}
#endif
/*
* 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);
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;
/*
* 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:
qtrx->qt_icount_delta += delta;
break;
/*
* rtblk reservation
*/
case XFS_TRANS_DQ_RES_RTBLKS:
qtrx->qt_rtblk_res += (ulong)delta;
/* ASSERT(qtrx->qt_rtblk_res >= 0); */
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_DIRTY | 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 prj),
* involved in a transaction is 2 and that both usr and prj 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;
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_prjdquots;
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(XFS_DQ_IS_ADDEDTO_TRX(tp, dqp));
/*
* 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;
#ifdef QUOTADEBUG
if (totalbdelta < 0)
ASSERT(d->d_bcount >=
(xfs_qcnt_t) -totalbdelta);
if (qtrx->qt_icount_delta < 0)
ASSERT(d->d_icount >=
(xfs_qcnt_t) -qtrx->qt_icount_delta);
#endif
d->d_bcount += (xfs_qcnt_t)totalbdelta;
d->d_icount += (xfs_qcnt_t)qtrx->qt_icount_delta;
if (qtrx->qt_rtbcount_delta)
d->d_bcount +=
(xfs_qcnt_t)qtrx->qt_rtbcount_delta;
/*
* Start/reset the timer(s) if needed.
*/
/* if (XFS_IS_QUOTA_ENFORCED(tp->t_mountp)) */
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;
}
if (qtrx->qt_rtbcount_delta)
dqp->q_res_rtbcount +=
(xfs_qcnt_t)qtrx->qt_rtbcount_delta;
}
if (qtrx->qt_rtblk_res &&
qtrx->qt_blk_res != qtrx->qt_blk_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);
}
#ifdef QUOTADEBUG
if (qtrx->qt_rtblk_res != 0)
printf("RT res %d for 0x%x\n",
(int) qtrx->qt_rtblk_res,
dqp);
#endif
ASSERT(dqp->q_res_bcount >= dqp->q_core.d_bcount);
ASSERT(dqp->q_res_rtbcount >= dqp->q_core.d_rtbcount);
}
/*
* Do the project quotas next
*/
qa = tp->t_dqinfo->dqa_prjdquots;
}
}
/*
* 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;
ASSERT(tp->t_dqinfo);
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.
*
* We didn't reserve any inodes so, nothing to do there.
* Also we don't bother to zero the fields.
*/
if (qtrx->qt_blk_res) {
#ifdef QUOTADEBUG
printf("############# TRANS_CANCEL: unresv: "
"dqp 0x%x (\'%d\'), nblks = %d ##########\n",
dqp, dqp->q_core.d_id,
qtrx->qt_blk_res);
#endif
xfs_dqlock(dqp);
dqp->q_res_bcount -= (xfs_qcnt_t)qtrx->qt_blk_res;
if (qtrx->qt_blk_res)
dqp->q_res_bcount -=
(xfs_qcnt_t)qtrx->qt_blk_res;
xfs_dqunlock(dqp);
}
if (qtrx->qt_rtblk_res) {
#ifdef QUOTADEBUG
printf("############# TRANS_CANCEL: unresv: "
"dqp 0x%x (\'%d\'), RT nblks = %d ##########\n",
dqp, dqp->q_core.d_id,
qtrx->qt_rtblk_res);
#endif
xfs_dqlock(dqp);
dqp->q_res_rtbcount -=
(xfs_qcnt_t)qtrx->qt_rtblk_res;
if (qtrx->qt_rtblk_res)
dqp->q_res_rtbcount -=
(xfs_qcnt_t)qtrx->qt_rtblk_res;
xfs_dqunlock(dqp);
}
}
qa = tp->t_dqinfo->dqa_prjdquots;
}
}
STATIC int
xfs_trans_dqresv(
xfs_trans_t *tp,
xfs_dquot_t *dqp,
long nblks,
xfs_qcnt_t hardlimit,
xfs_qcnt_t softlimit,
time_t btimer,
xfs_qcnt_t *resbcount,
uint flags)
{
int error;
if (! (flags & XFS_QMOPT_DQLOCK)) {
xfs_dqlock(dqp);
}
ASSERT(XFS_DQ_IS_LOCKED(dqp));
error = 0;
if (nblks > 0 &&
(flags & XFS_QMOPT_FORCE_RES) == 0 &&
dqp->q_core.d_id != 0 &&
XFS_IS_QUOTA_ENFORCED(dqp->q_mount)) {
/*
* dquot is locked already. See if we'd go over the hardlimit or
* exceed the timelimit if we allocate nblks
*/
if ((hardlimit > 0ULL &&
(hardlimit < nblks + *resbcount)) ||
(softlimit > 0ULL &&
(softlimit < nblks + *resbcount))) {
/*
* If timer or warnings has expired, return EDQUOT
*/
if ((btimer != 0 && time > btimer) ||
(dqp->q_core.d_bwarns != 0 &&
dqp->q_core.d_bwarns >=
dqp->q_mount->m_quotainfo->qi_iwarnlimit)) {
/* can't do it */
error = EDQUOT;
goto error_return;
}
}
}
/*
* Change the reservation, but not the actual usage.
* Note that q_res_bcount = q_core.d_bcount + resv
*/
(*resbcount) += (xfs_qcnt_t)nblks;
/*
* 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);
xfs_trans_mod_dquot(tp, dqp,
flags & XFS_QMOPT_RESBLK_MASK,
nblks);
}
ASSERT(dqp->q_res_bcount >= dqp->q_core.d_bcount);
ASSERT(dqp->q_res_rtbcount >= dqp->q_core.d_rtbcount);
error_return:
if (! (flags & XFS_QMOPT_DQLOCK)) {
xfs_dqunlock(dqp);
}
return (error);
}
/*
* Given a dquot(s), make disk block reservations against them.
* The fact that this does the reservation against both the usr and
* prj quotas is important, because this follows a both-or-nothing
* approach.
*
* flags = XFS_QMOPT_DQLOCK indicate if dquot(s) need to be locked.
* XFS_QMOPT_FORCE_RES evades limit enforcement. Used by chown.
* 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_dquot_t *udqp,
xfs_dquot_t *pdqp,
long nblks,
uint flags)
{
int resvd;
xfs_qcnt_t hlim, slim;
timer_t timer;
xfs_qcnt_t *resbcntp;
if (tp && tp->t_dqinfo == NULL)
xfs_trans_alloc_dqinfo(tp);
ASSERT(flags & XFS_QMOPT_RESBLK_MASK);
resvd = 0;
if (udqp) {
XFS_QM_INIT_DQARGS(flags, udqp, hlim, slim, timer, resbcntp);
if (xfs_trans_dqresv(tp, udqp, nblks, hlim, slim,
timer, resbcntp, flags))
return (EDQUOT);
resvd = 1;
}
if (pdqp) {
XFS_QM_INIT_DQARGS(flags, pdqp, hlim, slim, timer, resbcntp);
if (xfs_trans_dqresv(tp, pdqp, nblks, hlim, slim, timer,
resbcntp, flags)) {
/*
* can't do it, so backout previous reservation
*/
if (resvd) {
XFS_QM_INIT_DQRESARGS(flags, udqp, resbcntp);
xfs_trans_dqresv(tp, udqp, -nblks, hlim, slim,
timer, resbcntp, flags);
}
return (EDQUOT);
}
}
/*
* Didnt change anything critical, so, no need to log
*/
return (0);
}
/*
* Lock the dquot and change the reservation if we can.
* This doesnt change the actual usage, just the reservation.
*
* IN: inode, locked EXCL
*
* Returns 0 on success, EDQUOT or other errors otherwise
*/
int
xfs_trans_reserve_quota(
xfs_trans_t *tp,
xfs_inode_t *ip,
long nblks,
uint type)
{
int error;
#ifdef QUOTADEBUG
if (ip->i_udquot)
ASSERT(! XFS_DQ_IS_LOCKED(ip->i_udquot));
if (ip->i_pdquot)
ASSERT(! XFS_DQ_IS_LOCKED(ip->i_pdquot));
#endif
ASSERT(XFS_ISLOCKED_INODE_EXCL(ip));
ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
ASSERT(type == XFS_TRANS_DQ_RES_RTBLKS ||
type == XFS_TRANS_DQ_RES_BLKS);
/*
* Find the dquots concerned, lock them and attach them to inode.
* Typically, the dquots are already attached at this point, and
* we just lock them here. That is because we don't want to go
* galvanting while holding the inode lock.
*/
/*
if (error = xfs_qm_dqattach(ip, XFS_QMOPT_DQLOCK|XFS_QMOPT_ILOCKED))
return (error);
*/
/*if (XFS_IS_UQUOTA_ON(ip->i_mount)) {
ASSERT(ip->i_udquot);
xfs_dqlock(ip->i_udquot);
}
if (XFS_IS_PQUOTA_ON(ip->i_mount)) {
ASSERT(ip->i_pdquot);
xfs_dqlock(ip->i_pdquot);
}*/
/*
* Reserve nblks against these dquots, with trans as the mediator.
*/
error = xfs_trans_reserve_quota_bydquots(tp,
ip->i_udquot, ip->i_pdquot,
nblks,
type);
/* if (ip->i_pdquot)
xfs_dqunlock(ip->i_pdquot);
if (ip->i_udquot)
xfs_dqunlock(ip->i_udquot); */
return (error);
}
/*
* Just a wrapper around xfs_qm_check_inoquota()
*/
int
xfs_qm_check_inoquota2(
xfs_mount_t *mp,
xfs_dquot_t *udqp,
xfs_dquot_t *pdqp)
{
if (! XFS_IS_QUOTA_ENFORCED(mp))
return (0);
if (udqp) {
if (xfs_qm_check_inoquota(udqp))
return (EDQUOT);
}
if (pdqp) {
if (xfs_qm_check_inoquota(pdqp))
return (EDQUOT);
}
return (0);
}
/*
* Returns EDQUOT if creating one more inode will exceed the hardlimit
* or if the inode quota timer has already expired. It does NOT change
* the dquot or associated data structures.
*/
int
xfs_qm_check_inoquota(
xfs_dquot_t *dqp)
{
ASSERT(dqp);
ASSERT(XFS_DQ_IS_LOCKED(dqp));
/* XXX check for warnings too */
if (XFS_IS_QUOTA_ENFORCED(dqp->q_mount)) {
/*
* dquot is locked already. See if we'd go over the hardlimit or
* if the timer has already expired.
*/
if (dqp->q_core.d_icount >= dqp->q_core.d_ino_hardlimit &&
dqp->q_core.d_ino_hardlimit > 0ULL) {
return (EDQUOT);
} else if (dqp->q_core.d_icount >=
dqp->q_core.d_ino_softlimit &&
dqp->q_core.d_ino_softlimit > 0ULL) {
/*
* If timer or warnings has expired, return EDQUOT
*/
if ((dqp->q_core.d_itimer != 0 &&
time > dqp->q_core.d_itimer) ||
(dqp->q_core.d_iwarns != 0 &&
dqp->q_core.d_iwarns >=
dqp->q_mount->m_quotainfo->qi_iwarnlimit)) {
return (EDQUOT);
}
}
}
return (0);
}
/*
* 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.
*/
(void) xfs_trans_add_item(tp, (xfs_log_item_t*)q);
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)
{
xfs_log_item_desc_t *lidp;
lidp = xfs_trans_find_item(tp, (xfs_log_item_t *)qlp);
ASSERT(lidp != NULL);
tp->t_flags |= XFS_TRANS_DIRTY;
lidp->lid_flags |= XFS_LID_DIRTY;
}
void
xfs_trans_alloc_dqinfo(
xfs_trans_t *tp)
{
(tp)->t_dqinfo = kmem_zone_zalloc(G_xqm->qm_dqtrxzone, KM_SLEEP);
}
void
xfs_trans_free_dqinfo(
xfs_trans_t *tp)
{
kmem_zone_free(G_xqm->qm_dqtrxzone, (tp)->t_dqinfo);
(tp)->t_dqinfo = NULL;
}
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