void
xfs_qm_vop_create_dqattach(
struct xfs_trans *tp,
struct xfs_inode *ip,
struct xfs_dquot *udqp,
struct xfs_dquot *gdqp)
{
struct xfs_mount *mp = tp->t_mountp;
if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
return;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
if (udqp) {
ASSERT(ip->i_udquot == NULL);
ASSERT(XFS_IS_UQUOTA_ON(mp));
ASSERT(ip->i_d.di_uid == be32_to_cpu(udqp->q_core.d_id));
ip->i_udquot = xfs_qm_dqhold(udqp);
xfs_trans_mod_dquot(tp, udqp, XFS_TRANS_DQ_ICOUNT, 1);
}
if (gdqp) {
ASSERT(ip->i_gdquot == NULL);
ASSERT(XFS_IS_OQUOTA_ON(mp));
ASSERT((XFS_IS_GQUOTA_ON(mp) ?
ip->i_d.di_gid : xfs_get_projid(ip)) ==
be32_to_cpu(gdqp->q_core.d_id));
ip->i_gdquot = xfs_qm_dqhold(gdqp);
xfs_trans_mod_dquot(tp, gdqp, XFS_TRANS_DQ_ICOUNT, 1);
}
}
/*
* 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;
ASSERT(tp);
mp = tp->t_mountp;
if (!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_GQUOTA_ON(mp) && ip->i_gdquot) {
(void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta);
}
}
/*
* Actually transfer ownership, and do dquot modifications.
* These were already reserved.
*/
xfs_dquot_t *
xfs_qm_vop_chown(
xfs_trans_t *tp,
xfs_inode_t *ip,
xfs_dquot_t **IO_olddq,
xfs_dquot_t *newdq)
{
xfs_dquot_t *prevdq;
uint bfield = XFS_IS_REALTIME_INODE(ip) ?
XFS_TRANS_DQ_RTBCOUNT : XFS_TRANS_DQ_BCOUNT;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(XFS_IS_QUOTA_RUNNING(ip->i_mount));
/* old dquot */
prevdq = *IO_olddq;
ASSERT(prevdq);
ASSERT(prevdq != newdq);
xfs_trans_mod_dquot(tp, prevdq, bfield, -(ip->i_d.di_nblocks));
xfs_trans_mod_dquot(tp, prevdq, XFS_TRANS_DQ_ICOUNT, -1);
/* the sparkling new dquot */
xfs_trans_mod_dquot(tp, newdq, bfield, ip->i_d.di_nblocks);
xfs_trans_mod_dquot(tp, newdq, XFS_TRANS_DQ_ICOUNT, 1);
/*
* Take an extra reference, because the inode is going to keep
* this dquot pointer even after the trans_commit.
*/
*IO_olddq = xfs_qm_dqhold(newdq);
return prevdq;
}
/*
* 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)
{
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_GQUOTA_ON(tp->t_mountp) && ip->i_gdquot) {
(void) xfs_trans_mod_dquot(tp, ip->i_gdquot, field, delta);
}
}
/*
* 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) ||
xfs_is_quota_inode(&mp->m_sb, ip->i_ino))
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);
}
/*
* 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;
struct xfs_def_quota *defq;
xfs_dqlock(dqp);
defq = xfs_get_defquota(dqp, q);
if (flags & XFS_TRANS_DQ_RES_BLKS) {
hardlimit = be64_to_cpu(dqp->q_core.d_blk_hardlimit);
if (!hardlimit)
hardlimit = defq->bhardlimit;
softlimit = be64_to_cpu(dqp->q_core.d_blk_softlimit);
if (!softlimit)
softlimit = defq->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 = defq->rtbhardlimit;
softlimit = be64_to_cpu(dqp->q_core.d_rtb_softlimit);
if (!softlimit)
softlimit = defq->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_GQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISGDQ(dqp)) ||
(XFS_IS_PQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISPDQ(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 = defq->ihardlimit;
softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
if (!softlimit)
softlimit = defq->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;
}
/*
* 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.
* Returns EDQUOT if quota is exceeded.
*/
STATIC int
xfs_trans_dqresv(
xfs_trans_t *tp,
xfs_dquot_t *dqp,
long nblks,
long ninos,
uint flags)
{
int error;
xfs_qcnt_t hardlimit;
xfs_qcnt_t softlimit;
time_t btimer;
xfs_qcnt_t *resbcountp;
if (! (flags & XFS_QMOPT_DQLOCK)) {
xfs_dqlock(dqp);
}
ASSERT(XFS_DQ_IS_LOCKED(dqp));
if (flags & XFS_TRANS_DQ_RES_BLKS) {
hardlimit = INT_GET(dqp->q_core.d_blk_hardlimit, ARCH_CONVERT);
softlimit = INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT);
btimer = INT_GET(dqp->q_core.d_btimer, ARCH_CONVERT);
resbcountp = &dqp->q_res_bcount;
} else {
ASSERT(flags & XFS_TRANS_DQ_RES_RTBLKS);
hardlimit = INT_GET(dqp->q_core.d_rtb_hardlimit, ARCH_CONVERT);
softlimit = INT_GET(dqp->q_core.d_rtb_softlimit, ARCH_CONVERT);
btimer = INT_GET(dqp->q_core.d_rtbtimer, ARCH_CONVERT);
resbcountp = &dqp->q_res_rtbcount;
}
error = 0;
if ((flags & XFS_QMOPT_FORCE_RES) == 0 &&
!INT_ISZERO(dqp->q_core.d_id, ARCH_CONVERT) &&
XFS_IS_QUOTA_ENFORCED(dqp->q_mount)) {
#ifdef QUOTADEBUG
printk("BLK Res: nblks=%ld + resbcount=%Ld > hardlimit=%Ld?\n",
nblks, *resbcountp, hardlimit);
#endif
if (nblks > 0) {
/*
* 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 + *resbcountp)) {
error = EDQUOT;
goto error_return;
}
if (softlimit > 0ULL &&
(softlimit <= nblks + *resbcountp)) {
/*
* If timer or warnings has expired,
* return EDQUOT
*/
if ((btimer != 0 && CURRENT_TIME > btimer) ||
(!INT_ISZERO(dqp->q_core.d_bwarns, ARCH_CONVERT) &&
INT_GET(dqp->q_core.d_bwarns, ARCH_CONVERT) >=
XFS_QI_BWARNLIMIT(dqp->q_mount))) {
error = EDQUOT;
goto error_return;
}
}
}
if (ninos > 0) {
if (INT_GET(dqp->q_core.d_ino_hardlimit, ARCH_CONVERT) > 0ULL &&
INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >=
INT_GET(dqp->q_core.d_ino_hardlimit, ARCH_CONVERT)) {
error = EDQUOT;
goto error_return;
} else if (INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT) > 0ULL &&
INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >=
INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT)) {
/*
* If timer or warnings has expired,
* return EDQUOT
*/
if ((!INT_ISZERO(dqp->q_core.d_itimer, ARCH_CONVERT) &&
CURRENT_TIME > INT_GET(dqp->q_core.d_itimer, ARCH_CONVERT)) ||
(!INT_ISZERO(dqp->q_core.d_iwarns, ARCH_CONVERT) &&
INT_GET(dqp->q_core.d_iwarns, ARCH_CONVERT) >=
XFS_QI_IWARNLIMIT(dqp->q_mount))) {
error = EDQUOT;
goto error_return;
}
}
}
}
/*
* 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 >= INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT));
ASSERT(dqp->q_res_rtbcount >= INT_GET(dqp->q_core.d_rtbcount, ARCH_CONVERT));
ASSERT(dqp->q_res_icount >= INT_GET(dqp->q_core.d_icount, ARCH_CONVERT));
error_return:
if (! (flags & XFS_QMOPT_DQLOCK)) {
xfs_dqunlock(dqp);
}
return (error);
}
/*
* 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.
* Returns EDQUOT if quota is exceeded.
*/
STATIC int
xfs_trans_dqresv(
xfs_trans_t *tp,
xfs_mount_t *mp,
xfs_dquot_t *dqp,
long nblks,
long ninos,
uint flags)
{
int error;
xfs_qcnt_t hardlimit;
xfs_qcnt_t softlimit;
time_t timer;
xfs_qwarncnt_t warns;
xfs_qwarncnt_t warnlimit;
xfs_qcnt_t count;
xfs_qcnt_t *resbcountp;
xfs_quotainfo_t *q = mp->m_quotainfo;
if (! (flags & XFS_QMOPT_DQLOCK)) {
xfs_dqlock(dqp);
}
ASSERT(XFS_DQ_IS_LOCKED(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 = XFS_QI_BWARNLIMIT(dqp->q_mount);
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 = XFS_QI_RTBWARNLIMIT(dqp->q_mount);
resbcountp = &dqp->q_res_rtbcount;
}
error = 0;
if ((flags & XFS_QMOPT_FORCE_RES) == 0 &&
dqp->q_core.d_id &&
XFS_IS_QUOTA_ENFORCED(dqp->q_mount)) {
#ifdef QUOTADEBUG
cmn_err(CE_DEBUG, "BLK Res: nblks=%ld + resbcount=%Ld"
" > hardlimit=%Ld?", nblks, *resbcountp, hardlimit);
#endif
if (nblks > 0) {
/*
* 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 + *resbcountp)) {
error = EDQUOT;
goto error_return;
}
if (softlimit > 0ULL &&
(softlimit <= nblks + *resbcountp)) {
/*
* If timer or warnings has expired,
* return EDQUOT
*/
if ((timer != 0 && get_seconds() > timer) ||
(warns != 0 && warns >= warnlimit)) {
error = EDQUOT;
goto error_return;
}
}
}
if (ninos > 0) {
count = be64_to_cpu(dqp->q_core.d_icount);
timer = be32_to_cpu(dqp->q_core.d_itimer);
warns = be16_to_cpu(dqp->q_core.d_iwarns);
warnlimit = XFS_QI_IWARNLIMIT(dqp->q_mount);
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 > 0ULL && count >= hardlimit) {
error = EDQUOT;
goto error_return;
} else if (softlimit > 0ULL && count >= softlimit) {
/*
* If timer or warnings has expired,
* return EDQUOT
*/
if ((timer != 0 && get_seconds() > timer) ||
(warns != 0 && warns >= warnlimit)) {
error = EDQUOT;
goto error_return;
}
}
}
}
/*
* 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));
error_return:
if (! (flags & XFS_QMOPT_DQLOCK)) {
xfs_dqunlock(dqp);
}
return (error);
}