/*
* Check the inode limit, applying corrective action.
*/
int
lfs_chkiq1(struct inode *ip, int32_t change, kauth_cred_t cred, int flags)
{
struct dquot *dq;
int i;
int ncurinodes, error;
if ((error = lfs_getinoquota(ip)) != 0)
return error;
if (change == 0)
return (0);
if (change < 0) {
for (i = 0; i < ULFS_MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
mutex_enter(&dq->dq_interlock);
ncurinodes = dq->dq_curinodes + change;
if (ncurinodes >= 0)
dq->dq_curinodes = ncurinodes;
else
dq->dq_curinodes = 0;
dq->dq_flags &= ~DQ_WARN(QL_FILE);
dq->dq_flags |= DQ_MOD;
mutex_exit(&dq->dq_interlock);
}
return (0);
}
for (i = 0; i < ULFS_MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
if ((flags & FORCE) == 0 && kauth_authorize_system(cred,
KAUTH_SYSTEM_FS_QUOTA, KAUTH_REQ_SYSTEM_FS_QUOTA_NOLIMIT,
KAUTH_ARG(i), KAUTH_ARG(QL_FILE), NULL) != 0) {
mutex_enter(&dq->dq_interlock);
error = chkiqchg(ip, change, cred, i);
mutex_exit(&dq->dq_interlock);
if (error != 0)
return (error);
}
}
for (i = 0; i < ULFS_MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
mutex_enter(&dq->dq_interlock);
dq->dq_curinodes += change;
dq->dq_flags |= DQ_MOD;
mutex_exit(&dq->dq_interlock);
}
return (0);
}
/*
* Check the inode limit, applying corrective action.
*/
int
chkiq(struct inode *ip, int32_t change, kauth_cred_t cred, int flags)
{
struct dquot *dq;
int i;
int ncurinodes, error;
if ((error = getinoquota(ip)) != 0)
return error;
if (change == 0)
return (0);
if (change < 0) {
for (i = 0; i < MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
mutex_enter(&dq->dq_interlock);
ncurinodes = dq->dq_curinodes + change;
if (ncurinodes >= 0)
dq->dq_curinodes = ncurinodes;
else
dq->dq_curinodes = 0;
dq->dq_flags &= ~DQ_INODS;
dq->dq_flags |= DQ_MOD;
mutex_exit(&dq->dq_interlock);
}
return (0);
}
if ((flags & FORCE) == 0 && kauth_authorize_generic(cred,
KAUTH_GENERIC_ISSUSER, NULL) != 0) {
for (i = 0; i < MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
mutex_enter(&dq->dq_interlock);
error = chkiqchg(ip, change, cred, i);
mutex_exit(&dq->dq_interlock);
if (error != 0)
return (error);
}
}
for (i = 0; i < MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
mutex_enter(&dq->dq_interlock);
dq->dq_curinodes += change;
dq->dq_flags |= DQ_MOD;
mutex_exit(&dq->dq_interlock);
}
return (0);
}
/*
* Check the inode limit, applying corrective action.
*/
int
chkiq(struct inode *ip, int change, struct ucred *cred, int flags)
{
struct dquot *dq;
int i, error, warn, do_check;
#ifdef DIAGNOSTIC
if ((flags & CHOWN) == 0)
chkdquot(ip);
#endif
if (change == 0)
return (0);
if (change < 0) {
for (i = 0; i < MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
DQI_LOCK(dq);
DQI_WAIT(dq, PINOD+1, "chkiq1");
if (dq->dq_curinodes >= -change)
dq->dq_curinodes += change;
else
dq->dq_curinodes = 0;
dq->dq_flags &= ~DQ_INODS;
dq->dq_flags |= DQ_MOD;
DQI_UNLOCK(dq);
}
return (0);
}
if ((flags & FORCE) == 0 &&
priv_check_cred(cred, PRIV_VFS_EXCEEDQUOTA, 0))
do_check = 1;
else
do_check = 0;
for (i = 0; i < MAXQUOTAS; i++) {
if ((dq = ip->i_dquot[i]) == NODQUOT)
continue;
warn = 0;
DQI_LOCK(dq);
DQI_WAIT(dq, PINOD+1, "chkiq2");
if (do_check) {
error = chkiqchg(ip, change, cred, i, &warn);
if (error) {
/*
* Roll back user quota changes when
* group quota failed.
*/
while (i > 0) {
--i;
dq = ip->i_dquot[i];
if (dq == NODQUOT)
continue;
DQI_LOCK(dq);
DQI_WAIT(dq, PINOD+1, "chkiq3");
if (dq->dq_curinodes >= change)
dq->dq_curinodes -= change;
else
dq->dq_curinodes = 0;
dq->dq_flags &= ~DQ_INODS;
dq->dq_flags |= DQ_MOD;
DQI_UNLOCK(dq);
}
return (error);
}
}
/* Reset timer when crossing soft limit */
if (dq->dq_curinodes + change >= dq->dq_isoftlimit &&
dq->dq_curinodes < dq->dq_isoftlimit)
dq->dq_itime = time_second + ITOUMP(ip)->um_itime[i];
dq->dq_curinodes += change;
dq->dq_flags |= DQ_MOD;
DQI_UNLOCK(dq);
if (warn)
uprintf("\n%s: warning, %s inode quota exceeded\n",
ITOVFS(ip)->mnt_stat.f_mntonname,
quotatypes[i]);
}
return (0);
}
