int
xfs_qm_scall_trunc_qfiles(
xfs_mount_t *mp,
uint flags)
{
int error = -EINVAL;
if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0 ||
(flags & ~XFS_DQ_ALLTYPES)) {
xfs_debug(mp, "%s: flags=%x m_qflags=%x",
__func__, flags, mp->m_qflags);
return -EINVAL;
}
if (flags & XFS_DQ_USER) {
error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
if (error)
return error;
}
if (flags & XFS_DQ_GROUP) {
error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
if (error)
return error;
}
if (flags & XFS_DQ_PROJ)
error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_pquotino);
return error;
}
int
xfs_qm_scall_trunc_qfiles(
xfs_mount_t *mp,
uint flags)
{
int error = 0, error2 = 0;
if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
xfs_debug(mp, "%s: flags=%x m_qflags=%x\n",
__func__, flags, mp->m_qflags);
return XFS_ERROR(EINVAL);
}
if (flags & XFS_DQ_USER)
error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ))
error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
return error ? error : error2;
}
/*
* Adjust quota limits, and start/stop timers accordingly.
*/
int
xfs_qm_scall_setqlim(
struct xfs_mount *mp,
xfs_dqid_t id,
uint type,
struct qc_dqblk *newlim)
{
struct xfs_quotainfo *q = mp->m_quotainfo;
struct xfs_disk_dquot *ddq;
struct xfs_dquot *dqp;
struct xfs_trans *tp;
int error;
xfs_qcnt_t hard, soft;
if (newlim->d_fieldmask & ~XFS_QC_MASK)
return EINVAL;
if ((newlim->d_fieldmask & XFS_QC_MASK) == 0)
return 0;
/*
* We don't want to race with a quotaoff so take the quotaoff lock.
* We don't hold an inode lock, so there's nothing else to stop
* a quotaoff from happening.
*/
mutex_lock(&q->qi_quotaofflock);
/*
* Get the dquot (locked) before we start, as we need to do a
* transaction to allocate it if it doesn't exist. Once we have the
* dquot, unlock it so we can start the next transaction safely. We hold
* a reference to the dquot, so it's safe to do this unlock/lock without
* it being reclaimed in the mean time.
*/
error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp);
if (error) {
ASSERT(error != ENOENT);
goto out_unlock;
}
xfs_dqunlock(dqp);
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_qm_setqlim, 0, 0);
if (error) {
xfs_trans_cancel(tp, 0);
goto out_rele;
}
xfs_dqlock(dqp);
xfs_trans_dqjoin(tp, dqp);
ddq = &dqp->q_core;
/*
* Make sure that hardlimits are >= soft limits before changing.
*/
hard = (newlim->d_fieldmask & QC_SPC_HARD) ?
(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) :
be64_to_cpu(ddq->d_blk_hardlimit);
soft = (newlim->d_fieldmask & QC_SPC_SOFT) ?
(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) :
be64_to_cpu(ddq->d_blk_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_blk_hardlimit = cpu_to_be64(hard);
ddq->d_blk_softlimit = cpu_to_be64(soft);
xfs_dquot_set_prealloc_limits(dqp);
if (id == 0) {
q->qi_bhardlimit = hard;
q->qi_bsoftlimit = soft;
}
} else {
xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft);
}
hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) :
be64_to_cpu(ddq->d_rtb_hardlimit);
soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ?
(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) :
be64_to_cpu(ddq->d_rtb_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_rtb_hardlimit = cpu_to_be64(hard);
ddq->d_rtb_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_rtbhardlimit = hard;
q->qi_rtbsoftlimit = soft;
}
} else {
xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft);
}
hard = (newlim->d_fieldmask & QC_INO_HARD) ?
(xfs_qcnt_t) newlim->d_ino_hardlimit :
be64_to_cpu(ddq->d_ino_hardlimit);
soft = (newlim->d_fieldmask & QC_INO_SOFT) ?
(xfs_qcnt_t) newlim->d_ino_softlimit :
be64_to_cpu(ddq->d_ino_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_ino_hardlimit = cpu_to_be64(hard);
ddq->d_ino_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_ihardlimit = hard;
q->qi_isoftlimit = soft;
}
} else {
xfs_debug(mp, "ihard %Ld < isoft %Ld", hard, soft);
}
/*
* Update warnings counter(s) if requested
*/
if (newlim->d_fieldmask & QC_SPC_WARNS)
ddq->d_bwarns = cpu_to_be16(newlim->d_spc_warns);
if (newlim->d_fieldmask & QC_INO_WARNS)
ddq->d_iwarns = cpu_to_be16(newlim->d_ino_warns);
if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
ddq->d_rtbwarns = cpu_to_be16(newlim->d_rt_spc_warns);
if (id == 0) {
/*
* Timelimits for the super user set the relative time
* the other users can be over quota for this file system.
* If it is zero a default is used. Ditto for the default
* soft and hard limit values (already done, above), and
* for warnings.
*/
if (newlim->d_fieldmask & QC_SPC_TIMER) {
q->qi_btimelimit = newlim->d_spc_timer;
ddq->d_btimer = cpu_to_be32(newlim->d_spc_timer);
}
if (newlim->d_fieldmask & QC_INO_TIMER) {
q->qi_itimelimit = newlim->d_ino_timer;
ddq->d_itimer = cpu_to_be32(newlim->d_ino_timer);
}
if (newlim->d_fieldmask & QC_RT_SPC_TIMER) {
q->qi_rtbtimelimit = newlim->d_rt_spc_timer;
ddq->d_rtbtimer = cpu_to_be32(newlim->d_rt_spc_timer);
}
if (newlim->d_fieldmask & QC_SPC_WARNS)
q->qi_bwarnlimit = newlim->d_spc_warns;
if (newlim->d_fieldmask & QC_INO_WARNS)
q->qi_iwarnlimit = newlim->d_ino_warns;
if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
q->qi_rtbwarnlimit = newlim->d_rt_spc_warns;
} else {
/*
* If the user is now over quota, start the timelimit.
* The user will not be 'warned'.
* Note that we keep the timers ticking, whether enforcement
* is on or off. We don't really want to bother with iterating
* over all ondisk dquots and turning the timers on/off.
*/
xfs_qm_adjust_dqtimers(mp, ddq);
}
dqp->dq_flags |= XFS_DQ_DIRTY;
xfs_trans_log_dquot(tp, dqp);
error = xfs_trans_commit(tp, 0);
out_rele:
xfs_qm_dqrele(dqp);
out_unlock:
mutex_unlock(&q->qi_quotaofflock);
return error;
}
/*
* Switch on (a given) quota enforcement for a filesystem. This takes
* effect immediately.
* (Switching on quota accounting must be done at mount time.)
*/
int
xfs_qm_scall_quotaon(
xfs_mount_t *mp,
uint flags)
{
int error;
uint qf;
__int64_t sbflags;
flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
/*
* Switching on quota accounting must be done at mount time.
*/
flags &= ~(XFS_ALL_QUOTA_ACCT);
sbflags = 0;
if (flags == 0) {
xfs_debug(mp, "%s: zero flags, m_qflags=%x",
__func__, mp->m_qflags);
return XFS_ERROR(EINVAL);
}
/* No fs can turn on quotas with a delayed effect */
ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0);
/*
* Can't enforce without accounting. We check the superblock
* qflags here instead of m_qflags because rootfs can have
* quota acct on ondisk without m_qflags' knowing.
*/
if (((flags & XFS_UQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
(flags & XFS_UQUOTA_ENFD)) ||
((flags & XFS_GQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
(flags & XFS_GQUOTA_ENFD)) ||
((flags & XFS_PQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
(flags & XFS_PQUOTA_ENFD))) {
xfs_debug(mp,
"%s: Can't enforce without acct, flags=%x sbflags=%x",
__func__, flags, mp->m_sb.sb_qflags);
return XFS_ERROR(EINVAL);
}
/*
* If everything's up to-date incore, then don't waste time.
*/
if ((mp->m_qflags & flags) == flags)
return XFS_ERROR(EEXIST);
/*
* Change sb_qflags on disk but not incore mp->qflags
* if this is the root filesystem.
*/
spin_lock(&mp->m_sb_lock);
qf = mp->m_sb.sb_qflags;
mp->m_sb.sb_qflags = qf | flags;
spin_unlock(&mp->m_sb_lock);
/*
* There's nothing to change if it's the same.
*/
if ((qf & flags) == flags && sbflags == 0)
return XFS_ERROR(EEXIST);
sbflags |= XFS_SB_QFLAGS;
if ((error = xfs_qm_write_sb_changes(mp, sbflags)))
return (error);
/*
* If we aren't trying to switch on quota enforcement, we are done.
*/
if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
(mp->m_qflags & XFS_UQUOTA_ACCT)) ||
((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) !=
(mp->m_qflags & XFS_PQUOTA_ACCT)) ||
((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) !=
(mp->m_qflags & XFS_GQUOTA_ACCT)) ||
(flags & XFS_ALL_QUOTA_ENFD) == 0)
return (0);
if (! XFS_IS_QUOTA_RUNNING(mp))
return XFS_ERROR(ESRCH);
/*
* Switch on quota enforcement in core.
*/
mutex_lock(&mp->m_quotainfo->qi_quotaofflock);
mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
mutex_unlock(&mp->m_quotainfo->qi_quotaofflock);
return (0);
}
/*
* Given the file system, inode OR id, and type (UDQUOT/GDQUOT), return a
* a locked dquot, doing an allocation (if requested) as needed.
* When both an inode and an id are given, the inode's id takes precedence.
* That is, if the id changes while we don't hold the ilock inside this
* function, the new dquot is returned, not necessarily the one requested
* in the id argument.
*/
int
xfs_qm_dqget(
xfs_mount_t *mp,
xfs_inode_t *ip, /* locked inode (optional) */
xfs_dqid_t id, /* uid/projid/gid depending on type */
uint type, /* XFS_DQ_USER/XFS_DQ_PROJ/XFS_DQ_GROUP */
uint flags, /* DQALLOC, DQSUSER, DQREPAIR, DOWARN */
xfs_dquot_t **O_dqpp) /* OUT : locked incore dquot */
{
struct xfs_quotainfo *qi = mp->m_quotainfo;
struct radix_tree_root *tree = xfs_dquot_tree(qi, type);
struct xfs_dquot *dqp;
int error;
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
if ((! XFS_IS_UQUOTA_ON(mp) && type == XFS_DQ_USER) ||
(! XFS_IS_PQUOTA_ON(mp) && type == XFS_DQ_PROJ) ||
(! XFS_IS_GQUOTA_ON(mp) && type == XFS_DQ_GROUP)) {
return (ESRCH);
}
#ifdef DEBUG
if (xfs_do_dqerror) {
if ((xfs_dqerror_target == mp->m_ddev_targp) &&
(xfs_dqreq_num++ % xfs_dqerror_mod) == 0) {
xfs_debug(mp, "Returning error in dqget");
return (EIO);
}
}
ASSERT(type == XFS_DQ_USER ||
type == XFS_DQ_PROJ ||
type == XFS_DQ_GROUP);
if (ip) {
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
ASSERT(xfs_inode_dquot(ip, type) == NULL);
}
#endif
restart:
mutex_lock(&qi->qi_tree_lock);
dqp = radix_tree_lookup(tree, id);
if (dqp) {
xfs_dqlock(dqp);
if (dqp->dq_flags & XFS_DQ_FREEING) {
xfs_dqunlock(dqp);
mutex_unlock(&qi->qi_tree_lock);
trace_xfs_dqget_freeing(dqp);
delay(1);
goto restart;
}
dqp->q_nrefs++;
mutex_unlock(&qi->qi_tree_lock);
trace_xfs_dqget_hit(dqp);
XFS_STATS_INC(xs_qm_dqcachehits);
*O_dqpp = dqp;
return 0;
}
mutex_unlock(&qi->qi_tree_lock);
XFS_STATS_INC(xs_qm_dqcachemisses);
/*
* Dquot cache miss. We don't want to keep the inode lock across
* a (potential) disk read. Also we don't want to deal with the lock
* ordering between quotainode and this inode. OTOH, dropping the inode
* lock here means dealing with a chown that can happen before
* we re-acquire the lock.
*/
if (ip)
xfs_iunlock(ip, XFS_ILOCK_EXCL);
error = xfs_qm_dqread(mp, id, type, flags, &dqp);
if (ip)
xfs_ilock(ip, XFS_ILOCK_EXCL);
if (error)
return error;
if (ip) {
/*
* A dquot could be attached to this inode by now, since
* we had dropped the ilock.
*/
if (xfs_this_quota_on(mp, type)) {
struct xfs_dquot *dqp1;
dqp1 = xfs_inode_dquot(ip, type);
if (dqp1) {
xfs_qm_dqdestroy(dqp);
dqp = dqp1;
xfs_dqlock(dqp);
goto dqret;
}
} else {
/* inode stays locked on return */
xfs_qm_dqdestroy(dqp);
return XFS_ERROR(ESRCH);
}
}
mutex_lock(&qi->qi_tree_lock);
error = -radix_tree_insert(tree, id, dqp);
if (unlikely(error)) {
WARN_ON(error != EEXIST);
/*
* Duplicate found. Just throw away the new dquot and start
* over.
*/
mutex_unlock(&qi->qi_tree_lock);
trace_xfs_dqget_dup(dqp);
xfs_qm_dqdestroy(dqp);
XFS_STATS_INC(xs_qm_dquot_dups);
goto restart;
}
/*
* We return a locked dquot to the caller, with a reference taken
*/
xfs_dqlock(dqp);
dqp->q_nrefs = 1;
qi->qi_dquots++;
mutex_unlock(&qi->qi_tree_lock);
dqret:
ASSERT((ip == NULL) || xfs_isilocked(ip, XFS_ILOCK_EXCL));
trace_xfs_dqget_miss(dqp);
*O_dqpp = dqp;
return (0);
}
/*
* Adjust quota limits, and start/stop timers accordingly.
*/
int
xfs_qm_scall_setqlim(
xfs_mount_t *mp,
xfs_dqid_t id,
uint type,
fs_disk_quota_t *newlim)
{
struct xfs_quotainfo *q = mp->m_quotainfo;
xfs_disk_dquot_t *ddq;
xfs_dquot_t *dqp;
xfs_trans_t *tp;
int error;
xfs_qcnt_t hard, soft;
if (newlim->d_fieldmask & ~XFS_DQ_MASK)
return EINVAL;
if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0)
return 0;
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128,
0, 0, XFS_DEFAULT_LOG_COUNT))) {
xfs_trans_cancel(tp, 0);
return (error);
}
/*
* We don't want to race with a quotaoff so take the quotaoff lock.
* (We don't hold an inode lock, so there's nothing else to stop
* a quotaoff from happening). (XXXThis doesn't currently happen
* because we take the vfslock before calling xfs_qm_sysent).
*/
mutex_lock(&q->qi_quotaofflock);
/*
* Get the dquot (locked), and join it to the transaction.
* Allocate the dquot if this doesn't exist.
*/
if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) {
xfs_trans_cancel(tp, XFS_TRANS_ABORT);
ASSERT(error != ENOENT);
goto out_unlock;
}
xfs_trans_dqjoin(tp, dqp);
ddq = &dqp->q_core;
/*
* Make sure that hardlimits are >= soft limits before changing.
*/
hard = (newlim->d_fieldmask & FS_DQ_BHARD) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) :
be64_to_cpu(ddq->d_blk_hardlimit);
soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) :
be64_to_cpu(ddq->d_blk_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_blk_hardlimit = cpu_to_be64(hard);
ddq->d_blk_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_bhardlimit = hard;
q->qi_bsoftlimit = soft;
}
} else {
xfs_debug(mp, "blkhard %Ld < blksoft %Ld\n", hard, soft);
}
hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) :
be64_to_cpu(ddq->d_rtb_hardlimit);
soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) :
be64_to_cpu(ddq->d_rtb_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_rtb_hardlimit = cpu_to_be64(hard);
ddq->d_rtb_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_rtbhardlimit = hard;
q->qi_rtbsoftlimit = soft;
}
} else {
xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld\n", hard, soft);
}
hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
(xfs_qcnt_t) newlim->d_ino_hardlimit :
be64_to_cpu(ddq->d_ino_hardlimit);
soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ?
(xfs_qcnt_t) newlim->d_ino_softlimit :
be64_to_cpu(ddq->d_ino_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_ino_hardlimit = cpu_to_be64(hard);
ddq->d_ino_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_ihardlimit = hard;
q->qi_isoftlimit = soft;
}
} else {
xfs_debug(mp, "ihard %Ld < isoft %Ld\n", hard, soft);
}
/*
* Update warnings counter(s) if requested
*/
if (newlim->d_fieldmask & FS_DQ_BWARNS)
ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns);
if (newlim->d_fieldmask & FS_DQ_IWARNS)
ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns);
if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns);
if (id == 0) {
/*
* Timelimits for the super user set the relative time
* the other users can be over quota for this file system.
* If it is zero a default is used. Ditto for the default
* soft and hard limit values (already done, above), and
* for warnings.
*/
if (newlim->d_fieldmask & FS_DQ_BTIMER) {
q->qi_btimelimit = newlim->d_btimer;
ddq->d_btimer = cpu_to_be32(newlim->d_btimer);
}
if (newlim->d_fieldmask & FS_DQ_ITIMER) {
q->qi_itimelimit = newlim->d_itimer;
ddq->d_itimer = cpu_to_be32(newlim->d_itimer);
}
if (newlim->d_fieldmask & FS_DQ_RTBTIMER) {
q->qi_rtbtimelimit = newlim->d_rtbtimer;
ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer);
}
if (newlim->d_fieldmask & FS_DQ_BWARNS)
q->qi_bwarnlimit = newlim->d_bwarns;
if (newlim->d_fieldmask & FS_DQ_IWARNS)
q->qi_iwarnlimit = newlim->d_iwarns;
if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
q->qi_rtbwarnlimit = newlim->d_rtbwarns;
} else {
/*
* If the user is now over quota, start the timelimit.
* The user will not be 'warned'.
* Note that we keep the timers ticking, whether enforcement
* is on or off. We don't really want to bother with iterating
* over all ondisk dquots and turning the timers on/off.
*/
xfs_qm_adjust_dqtimers(mp, ddq);
}
dqp->dq_flags |= XFS_DQ_DIRTY;
xfs_trans_log_dquot(tp, dqp);
error = xfs_trans_commit(tp, 0);
xfs_qm_dqrele(dqp);
out_unlock:
mutex_unlock(&q->qi_quotaofflock);
return error;
}
int
xfs_qm_scall_setqlim(
xfs_mount_t *mp,
xfs_dqid_t id,
uint type,
fs_disk_quota_t *newlim)
{
struct xfs_quotainfo *q = mp->m_quotainfo;
xfs_disk_dquot_t *ddq;
xfs_dquot_t *dqp;
xfs_trans_t *tp;
int error;
xfs_qcnt_t hard, soft;
if (newlim->d_fieldmask & ~XFS_DQ_MASK)
return EINVAL;
if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0)
return 0;
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128,
0, 0, XFS_DEFAULT_LOG_COUNT))) {
xfs_trans_cancel(tp, 0);
return (error);
}
mutex_lock(&q->qi_quotaofflock);
if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) {
xfs_trans_cancel(tp, XFS_TRANS_ABORT);
ASSERT(error != ENOENT);
goto out_unlock;
}
xfs_trans_dqjoin(tp, dqp);
ddq = &dqp->q_core;
hard = (newlim->d_fieldmask & FS_DQ_BHARD) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) :
be64_to_cpu(ddq->d_blk_hardlimit);
soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) :
be64_to_cpu(ddq->d_blk_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_blk_hardlimit = cpu_to_be64(hard);
ddq->d_blk_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_bhardlimit = hard;
q->qi_bsoftlimit = soft;
}
} else {
xfs_debug(mp, "blkhard %Ld < blksoft %Ld\n", hard, soft);
}
hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) :
be64_to_cpu(ddq->d_rtb_hardlimit);
soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) :
be64_to_cpu(ddq->d_rtb_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_rtb_hardlimit = cpu_to_be64(hard);
ddq->d_rtb_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_rtbhardlimit = hard;
q->qi_rtbsoftlimit = soft;
}
} else {
xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld\n", hard, soft);
}
hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
(xfs_qcnt_t) newlim->d_ino_hardlimit :
be64_to_cpu(ddq->d_ino_hardlimit);
soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ?
(xfs_qcnt_t) newlim->d_ino_softlimit :
be64_to_cpu(ddq->d_ino_softlimit);
if (hard == 0 || hard >= soft) {
ddq->d_ino_hardlimit = cpu_to_be64(hard);
ddq->d_ino_softlimit = cpu_to_be64(soft);
if (id == 0) {
q->qi_ihardlimit = hard;
q->qi_isoftlimit = soft;
}
} else {
xfs_debug(mp, "ihard %Ld < isoft %Ld\n", hard, soft);
}
if (newlim->d_fieldmask & FS_DQ_BWARNS)
ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns);
if (newlim->d_fieldmask & FS_DQ_IWARNS)
ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns);
if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns);
if (id == 0) {
if (newlim->d_fieldmask & FS_DQ_BTIMER) {
q->qi_btimelimit = newlim->d_btimer;
ddq->d_btimer = cpu_to_be32(newlim->d_btimer);
}
if (newlim->d_fieldmask & FS_DQ_ITIMER) {
q->qi_itimelimit = newlim->d_itimer;
ddq->d_itimer = cpu_to_be32(newlim->d_itimer);
}
if (newlim->d_fieldmask & FS_DQ_RTBTIMER) {
q->qi_rtbtimelimit = newlim->d_rtbtimer;
ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer);
}
if (newlim->d_fieldmask & FS_DQ_BWARNS)
q->qi_bwarnlimit = newlim->d_bwarns;
if (newlim->d_fieldmask & FS_DQ_IWARNS)
q->qi_iwarnlimit = newlim->d_iwarns;
if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
q->qi_rtbwarnlimit = newlim->d_rtbwarns;
} else {
xfs_qm_adjust_dqtimers(mp, ddq);
}
dqp->dq_flags |= XFS_DQ_DIRTY;
xfs_trans_log_dquot(tp, dqp);
error = xfs_trans_commit(tp, 0);
xfs_qm_dqrele(dqp);
out_unlock:
mutex_unlock(&q->qi_quotaofflock);
return error;
}
int
xfs_qm_scall_quotaon(
xfs_mount_t *mp,
uint flags)
{
int error;
uint qf;
__int64_t sbflags;
flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
flags &= ~(XFS_ALL_QUOTA_ACCT);
sbflags = 0;
if (flags == 0) {
xfs_debug(mp, "%s: zero flags, m_qflags=%x\n",
__func__, mp->m_qflags);
return XFS_ERROR(EINVAL);
}
ASSERT((flags & XFS_ALL_QUOTA_ACCT) == 0);
if (((flags & XFS_UQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
(flags & XFS_UQUOTA_ENFD))
||
((flags & XFS_PQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
(flags & XFS_GQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
(flags & XFS_OQUOTA_ENFD))) {
xfs_debug(mp,
"%s: Can't enforce without acct, flags=%x sbflags=%x\n",
__func__, flags, mp->m_sb.sb_qflags);
return XFS_ERROR(EINVAL);
}
if ((mp->m_qflags & flags) == flags)
return XFS_ERROR(EEXIST);
spin_lock(&mp->m_sb_lock);
qf = mp->m_sb.sb_qflags;
mp->m_sb.sb_qflags = qf | flags;
spin_unlock(&mp->m_sb_lock);
if ((qf & flags) == flags && sbflags == 0)
return XFS_ERROR(EEXIST);
sbflags |= XFS_SB_QFLAGS;
if ((error = xfs_qm_write_sb_changes(mp, sbflags)))
return (error);
if (((mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) !=
(mp->m_qflags & XFS_UQUOTA_ACCT)) ||
((mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) !=
(mp->m_qflags & XFS_PQUOTA_ACCT)) ||
((mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) !=
(mp->m_qflags & XFS_GQUOTA_ACCT)) ||
(flags & XFS_ALL_QUOTA_ENFD) == 0)
return (0);
if (! XFS_IS_QUOTA_RUNNING(mp))
return XFS_ERROR(ESRCH);
mutex_lock(&mp->m_quotainfo->qi_quotaofflock);
mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
mutex_unlock(&mp->m_quotainfo->qi_quotaofflock);
return (0);
}