/*
* Translate an internal style on-disk-dquot to the exportable format.
* The main differences are that the counters/limits are all in Basic
* Blocks (BBs) instead of the internal FSBs, and all on-disk data has
* to be converted to the native endianness.
*/
STATIC void
xfs_qm_export_dquot(
xfs_mount_t *mp,
xfs_disk_dquot_t *src,
struct fs_disk_quota *dst)
{
memset(dst, 0, sizeof(*dst));
dst->d_version = FS_DQUOT_VERSION; /* different from src->d_version */
dst->d_flags = xfs_qm_export_qtype_flags(src->d_flags);
dst->d_id = be32_to_cpu(src->d_id);
dst->d_blk_hardlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_hardlimit));
dst->d_blk_softlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_blk_softlimit));
dst->d_ino_hardlimit = be64_to_cpu(src->d_ino_hardlimit);
dst->d_ino_softlimit = be64_to_cpu(src->d_ino_softlimit);
dst->d_bcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_bcount));
dst->d_icount = be64_to_cpu(src->d_icount);
dst->d_btimer = be32_to_cpu(src->d_btimer);
dst->d_itimer = be32_to_cpu(src->d_itimer);
dst->d_iwarns = be16_to_cpu(src->d_iwarns);
dst->d_bwarns = be16_to_cpu(src->d_bwarns);
dst->d_rtb_hardlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_hardlimit));
dst->d_rtb_softlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtb_softlimit));
dst->d_rtbcount = XFS_FSB_TO_BB(mp, be64_to_cpu(src->d_rtbcount));
dst->d_rtbtimer = be32_to_cpu(src->d_rtbtimer);
dst->d_rtbwarns = be16_to_cpu(src->d_rtbwarns);
/*
* Internally, we don't reset all the timers when quota enforcement
* gets turned off. No need to confuse the user level code,
* so return zeroes in that case.
*/
if ((!XFS_IS_UQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_USER) ||
(!XFS_IS_OQUOTA_ENFORCED(mp) &&
(src->d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) {
dst->d_btimer = 0;
dst->d_itimer = 0;
dst->d_rtbtimer = 0;
}
#ifdef DEBUG
if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == XFS_USER_QUOTA) ||
(XFS_IS_OQUOTA_ENFORCED(mp) &&
(dst->d_flags & (XFS_PROJ_QUOTA | XFS_GROUP_QUOTA)))) &&
dst->d_id != 0) {
if (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) &&
(dst->d_blk_softlimit > 0)) {
ASSERT(dst->d_btimer != 0);
}
if (((int) dst->d_icount >= (int) dst->d_ino_softlimit) &&
(dst->d_ino_softlimit > 0)) {
ASSERT(dst->d_itimer != 0);
}
}
#endif
}
/*
* 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 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))))) {
#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) {
xfs_quota_warn(mp, dqp, QUOTA_NL_BHARDWARN);
goto error_return;
}
if (softlimit > 0ULL &&
softlimit <= nblks + *resbcountp) {
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) {
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 = 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 > 0ULL && count >= hardlimit) {
xfs_quota_warn(mp, dqp, QUOTA_NL_IHARDWARN);
goto error_return;
}
if (softlimit > 0ULL && 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;
}
int
xfs_qm_scall_getquota(
struct xfs_mount *mp,
xfs_dqid_t id,
uint type,
struct fs_disk_quota *dst)
{
struct xfs_dquot *dqp;
int error;
/*
* Try to get the dquot. We don't want it allocated on disk, so
* we aren't passing the XFS_QMOPT_DOALLOC flag. If it doesn't
* exist, we'll get ENOENT back.
*/
error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp);
if (error)
return error;
/*
* If everything's NULL, this dquot doesn't quite exist as far as
* our utility programs are concerned.
*/
if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
error = XFS_ERROR(ENOENT);
goto out_put;
}
memset(dst, 0, sizeof(*dst));
dst->d_version = FS_DQUOT_VERSION;
dst->d_flags = xfs_qm_export_qtype_flags(dqp->q_core.d_flags);
dst->d_id = be32_to_cpu(dqp->q_core.d_id);
dst->d_blk_hardlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
dst->d_blk_softlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
dst->d_ino_hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
dst->d_ino_softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
dst->d_bcount = XFS_FSB_TO_BB(mp, dqp->q_res_bcount);
dst->d_icount = dqp->q_res_icount;
dst->d_btimer = be32_to_cpu(dqp->q_core.d_btimer);
dst->d_itimer = be32_to_cpu(dqp->q_core.d_itimer);
dst->d_iwarns = be16_to_cpu(dqp->q_core.d_iwarns);
dst->d_bwarns = be16_to_cpu(dqp->q_core.d_bwarns);
dst->d_rtb_hardlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
dst->d_rtb_softlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
dst->d_rtbcount = XFS_FSB_TO_BB(mp, dqp->q_res_rtbcount);
dst->d_rtbtimer = be32_to_cpu(dqp->q_core.d_rtbtimer);
dst->d_rtbwarns = be16_to_cpu(dqp->q_core.d_rtbwarns);
/*
* Internally, we don't reset all the timers when quota enforcement
* gets turned off. No need to confuse the user level code,
* so return zeroes in that case.
*/
if ((!XFS_IS_UQUOTA_ENFORCED(mp) && dqp->q_core.d_flags == XFS_DQ_USER) ||
(!XFS_IS_OQUOTA_ENFORCED(mp) &&
(dqp->q_core.d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) {
dst->d_btimer = 0;
dst->d_itimer = 0;
dst->d_rtbtimer = 0;
}
#ifdef DEBUG
if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
(XFS_IS_OQUOTA_ENFORCED(mp) &&
(dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) &&
dst->d_id != 0) {
if ((dst->d_bcount > dst->d_blk_softlimit) &&
(dst->d_blk_softlimit > 0)) {
ASSERT(dst->d_btimer != 0);
}
if ((dst->d_icount > dst->d_ino_softlimit) &&
(dst->d_ino_softlimit > 0)) {
ASSERT(dst->d_itimer != 0);
}
}
#endif
out_put:
xfs_qm_dqput(dqp);
return error;
}
int
xfs_qm_scall_getquota(
struct xfs_mount *mp,
xfs_dqid_t id,
uint type,
struct fs_disk_quota *dst)
{
struct xfs_dquot *dqp;
int error;
error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp);
if (error)
return error;
if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
error = XFS_ERROR(ENOENT);
goto out_put;
}
memset(dst, 0, sizeof(*dst));
dst->d_version = FS_DQUOT_VERSION;
dst->d_flags = xfs_qm_export_qtype_flags(dqp->q_core.d_flags);
dst->d_id = be32_to_cpu(dqp->q_core.d_id);
dst->d_blk_hardlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
dst->d_blk_softlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
dst->d_ino_hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
dst->d_ino_softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
dst->d_bcount = XFS_FSB_TO_BB(mp, dqp->q_res_bcount);
dst->d_icount = dqp->q_res_icount;
dst->d_btimer = be32_to_cpu(dqp->q_core.d_btimer);
dst->d_itimer = be32_to_cpu(dqp->q_core.d_itimer);
dst->d_iwarns = be16_to_cpu(dqp->q_core.d_iwarns);
dst->d_bwarns = be16_to_cpu(dqp->q_core.d_bwarns);
dst->d_rtb_hardlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
dst->d_rtb_softlimit =
XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
dst->d_rtbcount = XFS_FSB_TO_BB(mp, dqp->q_res_rtbcount);
dst->d_rtbtimer = be32_to_cpu(dqp->q_core.d_rtbtimer);
dst->d_rtbwarns = be16_to_cpu(dqp->q_core.d_rtbwarns);
if ((!XFS_IS_UQUOTA_ENFORCED(mp) && dqp->q_core.d_flags == XFS_DQ_USER) ||
(!XFS_IS_OQUOTA_ENFORCED(mp) &&
(dqp->q_core.d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) {
dst->d_btimer = 0;
dst->d_itimer = 0;
dst->d_rtbtimer = 0;
}
#ifdef DEBUG
if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
(XFS_IS_OQUOTA_ENFORCED(mp) &&
(dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) &&
dst->d_id != 0) {
if (((int) dst->d_bcount > (int) dst->d_blk_softlimit) &&
(dst->d_blk_softlimit > 0)) {
ASSERT(dst->d_btimer != 0);
}
if (((int) dst->d_icount > (int) dst->d_ino_softlimit) &&
(dst->d_ino_softlimit > 0)) {
ASSERT(dst->d_itimer != 0);
}
}
#endif
out_put:
xfs_qm_dqput(dqp);
return error;
}
