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-rw-r--r--fs/quota/dquot.c151
-rw-r--r--fs/quota/quota.c217
-rw-r--r--fs/quota/quota_tree.c7
-rw-r--r--fs/quota/quota_v2.c12
-rw-r--r--fs/quota/quotaio_v2.h6
5 files changed, 326 insertions, 67 deletions
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 3a5f01319379..20d1f74561cf 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -900,14 +900,17 @@ static inline struct dquot **i_dquot(struct inode *inode)
static int dqinit_needed(struct inode *inode, int type)
{
+ struct dquot * const *dquots;
int cnt;
if (IS_NOQUOTA(inode))
return 0;
+
+ dquots = i_dquot(inode);
if (type != -1)
- return !i_dquot(inode)[type];
+ return !dquots[type];
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
- if (!i_dquot(inode)[cnt])
+ if (!dquots[cnt])
return 1;
return 0;
}
@@ -970,12 +973,13 @@ static void add_dquot_ref(struct super_block *sb, int type)
static void remove_inode_dquot_ref(struct inode *inode, int type,
struct list_head *tofree_head)
{
- struct dquot *dquot = i_dquot(inode)[type];
+ struct dquot **dquots = i_dquot(inode);
+ struct dquot *dquot = dquots[type];
- i_dquot(inode)[type] = NULL;
if (!dquot)
return;
+ dquots[type] = NULL;
if (list_empty(&dquot->dq_free)) {
/*
* The inode still has reference to dquot so it can't be in the
@@ -1159,8 +1163,8 @@ static int need_print_warning(struct dquot_warn *warn)
return uid_eq(current_fsuid(), warn->w_dq_id.uid);
case GRPQUOTA:
return in_group_p(warn->w_dq_id.gid);
- case PRJQUOTA: /* Never taken... Just make gcc happy */
- return 0;
+ case PRJQUOTA:
+ return 1;
}
return 0;
}
@@ -1389,16 +1393,21 @@ static int dquot_active(const struct inode *inode)
static void __dquot_initialize(struct inode *inode, int type)
{
int cnt, init_needed = 0;
- struct dquot *got[MAXQUOTAS];
+ struct dquot **dquots, *got[MAXQUOTAS];
struct super_block *sb = inode->i_sb;
qsize_t rsv;
if (!dquot_active(inode))
return;
+ dquots = i_dquot(inode);
+
/* First get references to structures we might need. */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
struct kqid qid;
+ kprojid_t projid;
+ int rc;
+
got[cnt] = NULL;
if (type != -1 && cnt != type)
continue;
@@ -1407,8 +1416,12 @@ static void __dquot_initialize(struct inode *inode, int type)
* we check it without locking here to avoid unnecessary
* dqget()/dqput() calls.
*/
- if (i_dquot(inode)[cnt])
+ if (dquots[cnt])
+ continue;
+
+ if (!sb_has_quota_active(sb, cnt))
continue;
+
init_needed = 1;
switch (cnt) {
@@ -1418,6 +1431,12 @@ static void __dquot_initialize(struct inode *inode, int type)
case GRPQUOTA:
qid = make_kqid_gid(inode->i_gid);
break;
+ case PRJQUOTA:
+ rc = inode->i_sb->dq_op->get_projid(inode, &projid);
+ if (rc)
+ continue;
+ qid = make_kqid_projid(projid);
+ break;
}
got[cnt] = dqget(sb, qid);
}
@@ -1438,8 +1457,8 @@ static void __dquot_initialize(struct inode *inode, int type)
/* We could race with quotaon or dqget() could have failed */
if (!got[cnt])
continue;
- if (!i_dquot(inode)[cnt]) {
- i_dquot(inode)[cnt] = got[cnt];
+ if (!dquots[cnt]) {
+ dquots[cnt] = got[cnt];
got[cnt] = NULL;
/*
* Make quota reservation system happy if someone
@@ -1447,7 +1466,7 @@ static void __dquot_initialize(struct inode *inode, int type)
*/
rsv = inode_get_rsv_space(inode);
if (unlikely(rsv))
- dquot_resv_space(i_dquot(inode)[cnt], rsv);
+ dquot_resv_space(dquots[cnt], rsv);
}
}
out_err:
@@ -1473,12 +1492,13 @@ EXPORT_SYMBOL(dquot_initialize);
static void __dquot_drop(struct inode *inode)
{
int cnt;
+ struct dquot **dquots = i_dquot(inode);
struct dquot *put[MAXQUOTAS];
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- put[cnt] = i_dquot(inode)[cnt];
- i_dquot(inode)[cnt] = NULL;
+ put[cnt] = dquots[cnt];
+ dquots[cnt] = NULL;
}
spin_unlock(&dq_data_lock);
dqput_all(put);
@@ -1486,6 +1506,7 @@ static void __dquot_drop(struct inode *inode)
void dquot_drop(struct inode *inode)
{
+ struct dquot * const *dquots;
int cnt;
if (IS_NOQUOTA(inode))
@@ -1498,8 +1519,9 @@ void dquot_drop(struct inode *inode)
* must assure that nobody can come after the DQUOT_DROP and
* add quota pointers back anyway.
*/
+ dquots = i_dquot(inode);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (i_dquot(inode)[cnt])
+ if (dquots[cnt])
break;
}
@@ -1600,8 +1622,8 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags)
{
int cnt, ret = 0, index;
struct dquot_warn warn[MAXQUOTAS];
- struct dquot **dquots = i_dquot(inode);
int reserve = flags & DQUOT_SPACE_RESERVE;
+ struct dquot **dquots;
if (!dquot_active(inode)) {
inode_incr_space(inode, number, reserve);
@@ -1611,6 +1633,7 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number, int flags)
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
warn[cnt].w_type = QUOTA_NL_NOWARN;
+ dquots = i_dquot(inode);
index = srcu_read_lock(&dquot_srcu);
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
@@ -1652,13 +1675,14 @@ int dquot_alloc_inode(struct inode *inode)
{
int cnt, ret = 0, index;
struct dquot_warn warn[MAXQUOTAS];
- struct dquot * const *dquots = i_dquot(inode);
+ struct dquot * const *dquots;
if (!dquot_active(inode))
return 0;
for (cnt = 0; cnt < MAXQUOTAS; cnt++)
warn[cnt].w_type = QUOTA_NL_NOWARN;
+ dquots = i_dquot(inode);
index = srcu_read_lock(&dquot_srcu);
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
@@ -1690,6 +1714,7 @@ EXPORT_SYMBOL(dquot_alloc_inode);
*/
int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
{
+ struct dquot **dquots;
int cnt, index;
if (!dquot_active(inode)) {
@@ -1697,18 +1722,18 @@ int dquot_claim_space_nodirty(struct inode *inode, qsize_t number)
return 0;
}
+ dquots = i_dquot(inode);
index = srcu_read_lock(&dquot_srcu);
spin_lock(&dq_data_lock);
/* Claim reserved quotas to allocated quotas */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (i_dquot(inode)[cnt])
- dquot_claim_reserved_space(i_dquot(inode)[cnt],
- number);
+ if (dquots[cnt])
+ dquot_claim_reserved_space(dquots[cnt], number);
}
/* Update inode bytes */
inode_claim_rsv_space(inode, number);
spin_unlock(&dq_data_lock);
- mark_all_dquot_dirty(i_dquot(inode));
+ mark_all_dquot_dirty(dquots);
srcu_read_unlock(&dquot_srcu, index);
return 0;
}
@@ -1719,6 +1744,7 @@ EXPORT_SYMBOL(dquot_claim_space_nodirty);
*/
void dquot_reclaim_space_nodirty(struct inode *inode, qsize_t number)
{
+ struct dquot **dquots;
int cnt, index;
if (!dquot_active(inode)) {
@@ -1726,18 +1752,18 @@ void dquot_reclaim_space_nodirty(struct inode *inode, qsize_t number)
return;
}
+ dquots = i_dquot(inode);
index = srcu_read_lock(&dquot_srcu);
spin_lock(&dq_data_lock);
/* Claim reserved quotas to allocated quotas */
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (i_dquot(inode)[cnt])
- dquot_reclaim_reserved_space(i_dquot(inode)[cnt],
- number);
+ if (dquots[cnt])
+ dquot_reclaim_reserved_space(dquots[cnt], number);
}
/* Update inode bytes */
inode_reclaim_rsv_space(inode, number);
spin_unlock(&dq_data_lock);
- mark_all_dquot_dirty(i_dquot(inode));
+ mark_all_dquot_dirty(dquots);
srcu_read_unlock(&dquot_srcu, index);
return;
}
@@ -1750,7 +1776,7 @@ void __dquot_free_space(struct inode *inode, qsize_t number, int flags)
{
unsigned int cnt;
struct dquot_warn warn[MAXQUOTAS];
- struct dquot **dquots = i_dquot(inode);
+ struct dquot **dquots;
int reserve = flags & DQUOT_SPACE_RESERVE, index;
if (!dquot_active(inode)) {
@@ -1758,6 +1784,7 @@ void __dquot_free_space(struct inode *inode, qsize_t number, int flags)
return;
}
+ dquots = i_dquot(inode);
index = srcu_read_lock(&dquot_srcu);
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
@@ -1793,12 +1820,13 @@ void dquot_free_inode(struct inode *inode)
{
unsigned int cnt;
struct dquot_warn warn[MAXQUOTAS];
- struct dquot * const *dquots = i_dquot(inode);
+ struct dquot * const *dquots;
int index;
if (!dquot_active(inode))
return;
+ dquots = i_dquot(inode);
index = srcu_read_lock(&dquot_srcu);
spin_lock(&dq_data_lock);
for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
@@ -2161,7 +2189,8 @@ static int vfs_load_quota_inode(struct inode *inode, int type, int format_id,
error = -EROFS;
goto out_fmt;
}
- if (!sb->s_op->quota_write || !sb->s_op->quota_read) {
+ if (!sb->s_op->quota_write || !sb->s_op->quota_read ||
+ (type == PRJQUOTA && sb->dq_op->get_projid == NULL)) {
error = -EINVAL;
goto out_fmt;
}
@@ -2614,55 +2643,73 @@ out:
EXPORT_SYMBOL(dquot_set_dqblk);
/* Generic routine for getting common part of quota file information */
-int dquot_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
+int dquot_get_state(struct super_block *sb, struct qc_state *state)
{
struct mem_dqinfo *mi;
+ struct qc_type_state *tstate;
+ struct quota_info *dqopt = sb_dqopt(sb);
+ int type;
mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
- if (!sb_has_quota_active(sb, type)) {
- mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
- return -ESRCH;
+ memset(state, 0, sizeof(*state));
+ for (type = 0; type < MAXQUOTAS; type++) {
+ if (!sb_has_quota_active(sb, type))
+ continue;
+ tstate = state->s_state + type;
+ mi = sb_dqopt(sb)->info + type;
+ tstate->flags = QCI_ACCT_ENABLED;
+ spin_lock(&dq_data_lock);
+ if (mi->dqi_flags & DQF_SYS_FILE)
+ tstate->flags |= QCI_SYSFILE;
+ if (mi->dqi_flags & DQF_ROOT_SQUASH)
+ tstate->flags |= QCI_ROOT_SQUASH;
+ if (sb_has_quota_limits_enabled(sb, type))
+ tstate->flags |= QCI_LIMITS_ENFORCED;
+ tstate->spc_timelimit = mi->dqi_bgrace;
+ tstate->ino_timelimit = mi->dqi_igrace;
+ tstate->ino = dqopt->files[type]->i_ino;
+ tstate->blocks = dqopt->files[type]->i_blocks;
+ tstate->nextents = 1; /* We don't know... */
+ spin_unlock(&dq_data_lock);
}
- mi = sb_dqopt(sb)->info + type;
- spin_lock(&dq_data_lock);
- ii->dqi_bgrace = mi->dqi_bgrace;
- ii->dqi_igrace = mi->dqi_igrace;
- ii->dqi_flags = mi->dqi_flags & DQF_GETINFO_MASK;
- ii->dqi_valid = IIF_ALL;
- spin_unlock(&dq_data_lock);
mutex_unlock(&sb_dqopt(sb)->dqonoff_mutex);
return 0;
}
-EXPORT_SYMBOL(dquot_get_dqinfo);
+EXPORT_SYMBOL(dquot_get_state);
/* Generic routine for setting common part of quota file information */
-int dquot_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii)
+int dquot_set_dqinfo(struct super_block *sb, int type, struct qc_info *ii)
{
struct mem_dqinfo *mi;
int err = 0;
+ if ((ii->i_fieldmask & QC_WARNS_MASK) ||
+ (ii->i_fieldmask & QC_RT_SPC_TIMER))
+ return -EINVAL;
mutex_lock(&sb_dqopt(sb)->dqonoff_mutex);
if (!sb_has_quota_active(sb, type)) {
err = -ESRCH;
goto out;
}
mi = sb_dqopt(sb)->info + type;
- if (ii->dqi_valid & IIF_FLAGS) {
- if (ii->dqi_flags & ~DQF_SETINFO_MASK ||
- (ii->dqi_flags & DQF_ROOT_SQUASH &&
+ if (ii->i_fieldmask & QC_FLAGS) {
+ if ((ii->i_flags & QCI_ROOT_SQUASH &&
mi->dqi_format->qf_fmt_id != QFMT_VFS_OLD)) {
err = -EINVAL;
goto out;
}
}
spin_lock(&dq_data_lock);
- if (ii->dqi_valid & IIF_BGRACE)
- mi->dqi_bgrace = ii->dqi_bgrace;
- if (ii->dqi_valid & IIF_IGRACE)
- mi->dqi_igrace = ii->dqi_igrace;
- if (ii->dqi_valid & IIF_FLAGS)
- mi->dqi_flags = (mi->dqi_flags & ~DQF_SETINFO_MASK) |
- (ii->dqi_flags & DQF_SETINFO_MASK);
+ if (ii->i_fieldmask & QC_SPC_TIMER)
+ mi->dqi_bgrace = ii->i_spc_timelimit;
+ if (ii->i_fieldmask & QC_INO_TIMER)
+ mi->dqi_igrace = ii->i_ino_timelimit;
+ if (ii->i_fieldmask & QC_FLAGS) {
+ if (ii->i_flags & QCI_ROOT_SQUASH)
+ mi->dqi_flags |= DQF_ROOT_SQUASH;
+ else
+ mi->dqi_flags &= ~DQF_ROOT_SQUASH;
+ }
spin_unlock(&dq_data_lock);
mark_info_dirty(sb, type);
/* Force write to disk */
@@ -2677,7 +2724,7 @@ const struct quotactl_ops dquot_quotactl_ops = {
.quota_on = dquot_quota_on,
.quota_off = dquot_quota_off,
.quota_sync = dquot_quota_sync,
- .get_info = dquot_get_dqinfo,
+ .get_state = dquot_get_state,
.set_info = dquot_set_dqinfo,
.get_dqblk = dquot_get_dqblk,
.set_dqblk = dquot_set_dqblk
@@ -2688,7 +2735,7 @@ const struct quotactl_ops dquot_quotactl_sysfile_ops = {
.quota_enable = dquot_quota_enable,
.quota_disable = dquot_quota_disable,
.quota_sync = dquot_quota_sync,
- .get_info = dquot_get_dqinfo,
+ .get_state = dquot_get_state,
.set_info = dquot_set_dqinfo,
.get_dqblk = dquot_get_dqblk,
.set_dqblk = dquot_set_dqblk
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index d14a799c7785..86ded7375c21 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -118,13 +118,30 @@ static int quota_getfmt(struct super_block *sb, int type, void __user *addr)
static int quota_getinfo(struct super_block *sb, int type, void __user *addr)
{
- struct if_dqinfo info;
+ struct qc_state state;
+ struct qc_type_state *tstate;
+ struct if_dqinfo uinfo;
int ret;
- if (!sb->s_qcop->get_info)
+ /* This checks whether qc_state has enough entries... */
+ BUILD_BUG_ON(MAXQUOTAS > XQM_MAXQUOTAS);
+ if (!sb->s_qcop->get_state)
return -ENOSYS;
- ret = sb->s_qcop->get_info(sb, type, &info);
- if (!ret && copy_to_user(addr, &info, sizeof(info)))
+ ret = sb->s_qcop->get_state(sb, &state);
+ if (ret)
+ return ret;
+ tstate = state.s_state + type;
+ if (!(tstate->flags & QCI_ACCT_ENABLED))
+ return -ESRCH;
+ memset(&uinfo, 0, sizeof(uinfo));
+ uinfo.dqi_bgrace = tstate->spc_timelimit;
+ uinfo.dqi_igrace = tstate->ino_timelimit;
+ if (tstate->flags & QCI_SYSFILE)
+ uinfo.dqi_flags |= DQF_SYS_FILE;
+ if (tstate->flags & QCI_ROOT_SQUASH)
+ uinfo.dqi_flags |= DQF_ROOT_SQUASH;
+ uinfo.dqi_valid = IIF_ALL;
+ if (!ret && copy_to_user(addr, &uinfo, sizeof(uinfo)))
return -EFAULT;
return ret;
}
@@ -132,12 +149,31 @@ static int quota_getinfo(struct super_block *sb, int type, void __user *addr)
static int quota_setinfo(struct super_block *sb, int type, void __user *addr)
{
struct if_dqinfo info;
+ struct qc_info qinfo;
if (copy_from_user(&info, addr, sizeof(info)))
return -EFAULT;
if (!sb->s_qcop->set_info)
return -ENOSYS;
- return sb->s_qcop->set_info(sb, type, &info);
+ if (info.dqi_valid & ~(IIF_FLAGS | IIF_BGRACE | IIF_IGRACE))
+ return -EINVAL;
+ memset(&qinfo, 0, sizeof(qinfo));
+ if (info.dqi_valid & IIF_FLAGS) {
+ if (info.dqi_flags & ~DQF_SETINFO_MASK)
+ return -EINVAL;
+ if (info.dqi_flags & DQF_ROOT_SQUASH)
+ qinfo.i_flags |= QCI_ROOT_SQUASH;
+ qinfo.i_fieldmask |= QC_FLAGS;
+ }
+ if (info.dqi_valid & IIF_BGRACE) {
+ qinfo.i_spc_timelimit = info.dqi_bgrace;
+ qinfo.i_fieldmask |= QC_SPC_TIMER;
+ }
+ if (info.dqi_valid & IIF_IGRACE) {
+ qinfo.i_ino_timelimit = info.dqi_igrace;
+ qinfo.i_fieldmask |= QC_INO_TIMER;
+ }
+ return sb->s_qcop->set_info(sb, type, &qinfo);
}
static inline qsize_t qbtos(qsize_t blocks)
@@ -252,25 +288,149 @@ static int quota_disable(struct super_block *sb, void __user *addr)
return sb->s_qcop->quota_disable(sb, flags);
}
+static int quota_state_to_flags(struct qc_state *state)
+{
+ int flags = 0;
+
+ if (state->s_state[USRQUOTA].flags & QCI_ACCT_ENABLED)
+ flags |= FS_QUOTA_UDQ_ACCT;
+ if (state->s_state[USRQUOTA].flags & QCI_LIMITS_ENFORCED)
+ flags |= FS_QUOTA_UDQ_ENFD;
+ if (state->s_state[GRPQUOTA].flags & QCI_ACCT_ENABLED)
+ flags |= FS_QUOTA_GDQ_ACCT;
+ if (state->s_state[GRPQUOTA].flags & QCI_LIMITS_ENFORCED)
+ flags |= FS_QUOTA_GDQ_ENFD;
+ if (state->s_state[PRJQUOTA].flags & QCI_ACCT_ENABLED)
+ flags |= FS_QUOTA_PDQ_ACCT;
+ if (state->s_state[PRJQUOTA].flags & QCI_LIMITS_ENFORCED)
+ flags |= FS_QUOTA_PDQ_ENFD;
+ return flags;
+}
+
+static int quota_getstate(struct super_block *sb, struct fs_quota_stat *fqs)
+{
+ int type;
+ struct qc_state state;
+ int ret;
+
+ ret = sb->s_qcop->get_state(sb, &state);
+ if (ret < 0)
+ return ret;
+
+ memset(fqs, 0, sizeof(*fqs));
+ fqs->qs_version = FS_QSTAT_VERSION;
+ fqs->qs_flags = quota_state_to_flags(&state);
+ /* No quota enabled? */
+ if (!fqs->qs_flags)
+ return -ENOSYS;
+ fqs->qs_incoredqs = state.s_incoredqs;
+ /*
+ * GETXSTATE quotactl has space for just one set of time limits so
+ * report them for the first enabled quota type
+ */
+ for (type = 0; type < XQM_MAXQUOTAS; type++)
+ if (state.s_state[type].flags & QCI_ACCT_ENABLED)
+ break;
+ BUG_ON(type == XQM_MAXQUOTAS);
+ fqs->qs_btimelimit = state.s_state[type].spc_timelimit;
+ fqs->qs_itimelimit = state.s_state[type].ino_timelimit;
+ fqs->qs_rtbtimelimit = state.s_state[type].rt_spc_timelimit;
+ fqs->qs_bwarnlimit = state.s_state[type].spc_warnlimit;
+ fqs->qs_iwarnlimit = state.s_state[type].ino_warnlimit;
+ if (state.s_state[USRQUOTA].flags & QCI_ACCT_ENABLED) {
+ fqs->qs_uquota.qfs_ino = state.s_state[USRQUOTA].ino;
+ fqs->qs_uquota.qfs_nblks = state.s_state[USRQUOTA].blocks;
+ fqs->qs_uquota.qfs_nextents = state.s_state[USRQUOTA].nextents;
+ }
+ if (state.s_state[GRPQUOTA].flags & QCI_ACCT_ENABLED) {
+ fqs->qs_gquota.qfs_ino = state.s_state[GRPQUOTA].ino;
+ fqs->qs_gquota.qfs_nblks = state.s_state[GRPQUOTA].blocks;
+ fqs->qs_gquota.qfs_nextents = state.s_state[GRPQUOTA].nextents;
+ }
+ if (state.s_state[PRJQUOTA].flags & QCI_ACCT_ENABLED) {
+ /*
+ * Q_XGETQSTAT doesn't have room for both group and project
+ * quotas. So, allow the project quota values to be copied out
+ * only if there is no group quota information available.
+ */
+ if (!(state.s_state[GRPQUOTA].flags & QCI_ACCT_ENABLED)) {
+ fqs->qs_gquota.qfs_ino = state.s_state[PRJQUOTA].ino;
+ fqs->qs_gquota.qfs_nblks =
+ state.s_state[PRJQUOTA].blocks;
+ fqs->qs_gquota.qfs_nextents =
+ state.s_state[PRJQUOTA].nextents;
+ }
+ }
+ return 0;
+}
+
static int quota_getxstate(struct super_block *sb, void __user *addr)
{
struct fs_quota_stat fqs;
int ret;
- if (!sb->s_qcop->get_xstate)
+ if (!sb->s_qcop->get_state)
return -ENOSYS;
- ret = sb->s_qcop->get_xstate(sb, &fqs);
+ ret = quota_getstate(sb, &fqs);
if (!ret && copy_to_user(addr, &fqs, sizeof(fqs)))
return -EFAULT;
return ret;
}
+static int quota_getstatev(struct super_block *sb, struct fs_quota_statv *fqs)
+{
+ int type;
+ struct qc_state state;
+ int ret;
+
+ ret = sb->s_qcop->get_state(sb, &state);
+ if (ret < 0)
+ return ret;
+
+ memset(fqs, 0, sizeof(*fqs));
+ fqs->qs_version = FS_QSTAT_VERSION;
+ fqs->qs_flags = quota_state_to_flags(&state);
+ /* No quota enabled? */
+ if (!fqs->qs_flags)
+ return -ENOSYS;
+ fqs->qs_incoredqs = state.s_incoredqs;
+ /*
+ * GETXSTATV quotactl has space for just one set of time limits so
+ * report them for the first enabled quota type
+ */
+ for (type = 0; type < XQM_MAXQUOTAS; type++)
+ if (state.s_state[type].flags & QCI_ACCT_ENABLED)
+ break;
+ BUG_ON(type == XQM_MAXQUOTAS);
+ fqs->qs_btimelimit = state.s_state[type].spc_timelimit;
+ fqs->qs_itimelimit = state.s_state[type].ino_timelimit;
+ fqs->qs_rtbtimelimit = state.s_state[type].rt_spc_timelimit;
+ fqs->qs_bwarnlimit = state.s_state[type].spc_warnlimit;
+ fqs->qs_iwarnlimit = state.s_state[type].ino_warnlimit;
+ if (state.s_state[USRQUOTA].flags & QCI_ACCT_ENABLED) {
+ fqs->qs_uquota.qfs_ino = state.s_state[USRQUOTA].ino;
+ fqs->qs_uquota.qfs_nblks = state.s_state[USRQUOTA].blocks;
+ fqs->qs_uquota.qfs_nextents = state.s_state[USRQUOTA].nextents;
+ }
+ if (state.s_state[GRPQUOTA].flags & QCI_ACCT_ENABLED) {
+ fqs->qs_gquota.qfs_ino = state.s_state[GRPQUOTA].ino;
+ fqs->qs_gquota.qfs_nblks = state.s_state[GRPQUOTA].blocks;
+ fqs->qs_gquota.qfs_nextents = state.s_state[GRPQUOTA].nextents;
+ }
+ if (state.s_state[PRJQUOTA].flags & QCI_ACCT_ENABLED) {
+ fqs->qs_pquota.qfs_ino = state.s_state[PRJQUOTA].ino;
+ fqs->qs_pquota.qfs_nblks = state.s_state[PRJQUOTA].blocks;
+ fqs->qs_pquota.qfs_nextents = state.s_state[PRJQUOTA].nextents;
+ }
+ return 0;
+}
+
static int quota_getxstatev(struct super_block *sb, void __user *addr)
{
struct fs_quota_statv fqs;
int ret;
- if (!sb->s_qcop->get_xstatev)
+ if (!sb->s_qcop->get_state)
return -ENOSYS;
memset(&fqs, 0, sizeof(fqs));
@@ -284,7 +444,7 @@ static int quota_getxstatev(struct super_block *sb, void __user *addr)
default:
return -EINVAL;
}
- ret = sb->s_qcop->get_xstatev(sb, &fqs);
+ ret = quota_getstatev(sb, &fqs);
if (!ret && copy_to_user(addr, &fqs, sizeof(fqs)))
return -EFAULT;
return ret;
@@ -357,6 +517,30 @@ static void copy_from_xfs_dqblk(struct qc_dqblk *dst, struct fs_disk_quota *src)
dst->d_fieldmask |= QC_RT_SPACE;
}
+static void copy_qcinfo_from_xfs_dqblk(struct qc_info *dst,
+ struct fs_disk_quota *src)
+{
+ memset(dst, 0, sizeof(*dst));
+ dst->i_spc_timelimit = src->d_btimer;
+ dst->i_ino_timelimit = src->d_itimer;
+ dst->i_rt_spc_timelimit = src->d_rtbtimer;
+ dst->i_ino_warnlimit = src->d_iwarns;
+ dst->i_spc_warnlimit = src->d_bwarns;
+ dst->i_rt_spc_warnlimit = src->d_rtbwarns;
+ if (src->d_fieldmask & FS_DQ_BWARNS)
+ dst->i_fieldmask |= QC_SPC_WARNS;
+ if (src->d_fieldmask & FS_DQ_IWARNS)
+ dst->i_fieldmask |= QC_INO_WARNS;
+ if (src->d_fieldmask & FS_DQ_RTBWARNS)
+ dst->i_fieldmask |= QC_RT_SPC_WARNS;
+ if (src->d_fieldmask & FS_DQ_BTIMER)
+ dst->i_fieldmask |= QC_SPC_TIMER;
+ if (src->d_fieldmask & FS_DQ_ITIMER)
+ dst->i_fieldmask |= QC_INO_TIMER;
+ if (src->d_fieldmask & FS_DQ_RTBTIMER)
+ dst->i_fieldmask |= QC_RT_SPC_TIMER;
+}
+
static int quota_setxquota(struct super_block *sb, int type, qid_t id,
void __user *addr)
{
@@ -371,6 +555,21 @@ static int quota_setxquota(struct super_block *sb, int type, qid_t id,
qid = make_kqid(current_user_ns(), type, id);
if (!qid_valid(qid))
return -EINVAL;
+ /* Are we actually setting timer / warning limits for all users? */
+ if (from_kqid(&init_user_ns, qid) == 0 &&
+ fdq.d_fieldmask & (FS_DQ_WARNS_MASK | FS_DQ_TIMER_MASK)) {
+ struct qc_info qinfo;
+ int ret;
+
+ if (!sb->s_qcop->set_info)
+ return -EINVAL;
+ copy_qcinfo_from_xfs_dqblk(&qinfo, &fdq);
+ ret = sb->s_qcop->set_info(sb, type, &qinfo);
+ if (ret)
+ return ret;
+ /* These are already done */
+ fdq.d_fieldmask &= ~(FS_DQ_WARNS_MASK | FS_DQ_TIMER_MASK);
+ }
copy_from_xfs_dqblk(&qdq, &fdq);
return sb->s_qcop->set_dqblk(sb, qid, &qdq);
}
diff --git a/fs/quota/quota_tree.c b/fs/quota/quota_tree.c
index d65877fbe8f4..58efb83dec1c 100644
--- a/fs/quota/quota_tree.c
+++ b/fs/quota/quota_tree.c
@@ -349,6 +349,13 @@ static inline int dq_insert_tree(struct qtree_mem_dqinfo *info,
struct dquot *dquot)
{
int tmp = QT_TREEOFF;
+
+#ifdef __QUOTA_QT_PARANOIA
+ if (info->dqi_blocks <= QT_TREEOFF) {
+ quota_error(dquot->dq_sb, "Quota tree root isn't allocated!");
+ return -EIO;
+ }
+#endif
return do_insert_tree(info, dquot, &tmp, 0);
}
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index 9cb10d7197f7..2aa012a68e90 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -117,12 +117,16 @@ static int v2_read_file_info(struct super_block *sb, int type)
qinfo = info->dqi_priv;
if (version == 0) {
/* limits are stored as unsigned 32-bit data */
- info->dqi_max_spc_limit = 0xffffffffULL << QUOTABLOCK_BITS;
+ info->dqi_max_spc_limit = 0xffffffffLL << QUOTABLOCK_BITS;
info->dqi_max_ino_limit = 0xffffffff;
} else {
- /* used space is stored as unsigned 64-bit value in bytes */
- info->dqi_max_spc_limit = 0xffffffffffffffffULL; /* 2^64-1 */
- info->dqi_max_ino_limit = 0xffffffffffffffffULL;
+ /*
+ * Used space is stored as unsigned 64-bit value in bytes but
+ * quota core supports only signed 64-bit values so use that
+ * as a limit
+ */
+ info->dqi_max_spc_limit = 0x7fffffffffffffffLL; /* 2^63-1 */
+ info->dqi_max_ino_limit = 0x7fffffffffffffffLL;
}
info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
diff --git a/fs/quota/quotaio_v2.h b/fs/quota/quotaio_v2.h
index f1966b42c2fd..4e95430093d9 100644
--- a/fs/quota/quotaio_v2.h
+++ b/fs/quota/quotaio_v2.h
@@ -13,12 +13,14 @@
*/
#define V2_INITQMAGICS {\
0xd9c01f11, /* USRQUOTA */\
- 0xd9c01927 /* GRPQUOTA */\
+ 0xd9c01927, /* GRPQUOTA */\
+ 0xd9c03f14, /* PRJQUOTA */\
}
#define V2_INITQVERSIONS {\
1, /* USRQUOTA */\
- 1 /* GRPQUOTA */\
+ 1, /* GRPQUOTA */\
+ 1, /* PRJQUOTA */\
}
/* First generic header */
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-02 12:49:01 +0000