File: [Development] / xfs-linux-nodel / Attic / xfs_qm_syscalls.c (download)
Revision 1.9, Wed Jun 12 01:30:04 1996 UTC (21 years, 4 months ago) by sup
Branch: MAIN
Changes since 1.8: +52 -60
lines
Fixed a bug in the DEBUG quotacheck code where accounting
wasn't accurate.
Put vn_get under #ifdef _IRIX62_XFS_ONLY to stop the sources from
diverging. Fixed numerous bugs in SETQLIM. Took out DEBUG messages.
|
#ident "$Revision: 1.9 $"
#include <sys/param.h>
#include <sys/sysinfo.h>
#include <sys/buf.h>
#include <sys/ksa.h>
#include <sys/vnode.h>
#include <sys/pfdat.h>
#include <sys/uuid.h>
#include <sys/capability.h>
#include <sys/cred.h>
#include <sys/errno.h>
#include <sys/kmem.h>
#include <sys/debug.h>
#include <sys/proc.h>
#include <sys/cmn_err.h>
#include <sys/vfs.h>
#include <sys/atomic_ops.h>
#include <sys/systm.h>
#include <sys/ktrace.h>
#include <sys/quota.h>
#include <limits.h>
#include "xfs_macros.h"
#include "xfs_types.h"
#include "xfs_inum.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
#include "xfs_ag.h"
#include "xfs_mount.h"
#include "xfs_alloc_btree.h"
#include "xfs_bmap_btree.h"
#include "xfs_ialloc_btree.h"
#include "xfs_ialloc.h"
#include "xfs_alloc.h"
#include "xfs_bmap.h"
#include "xfs_btree.h"
#include "xfs_bmap.h"
#include "xfs_attr_sf.h"
#include "xfs_dir_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode_item.h"
#include "xfs_buf_item.h"
#include "xfs_da_btree.h"
#include "xfs_inode.h"
#include "xfs_error.h"
#include "xfs_itable.h"
#include "xfs_trans_priv.h"
#include "xfs_bit.h"
#include "xfs_clnt.h"
#include "xfs_quota.h"
#include "xfs_dqblk.h"
#include "xfs_dquot.h"
#include "xfs_qm.h"
#include "xfs_quota_priv.h"
extern int xfs_fstype;
STATIC int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
STATIC int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint, caddr_t);
STATIC int xfs_qm_scall_getqstat(xfs_mount_t *, caddr_t);
STATIC int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint, caddr_t);
STATIC int xfs_qm_scall_quotaoff(xfs_mount_t *, uint);
STATIC int xfs_qm_scall_quotaon(xfs_mount_t *, uint);
STATIC int xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint);
STATIC int xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
uint);
STATIC uint xfs_qm_import_flags(uint *);
STATIC uint xfs_qm_export_flags(uint);
STATIC uint xfs_qm_import_qtype_flags(uint *);
STATIC uint xfs_qm_export_qtype_flags(uint);
STATIC void xfs_qm_export_dquot(xfs_mount_t *, xfs_disk_dquot_t *,
struct fs_disk_quota *);
STATIC void xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
/*
* The main distribution switch of all XFS quotactl system calls.
*/
int
xfs_qm_sysent(
struct vfs *vfsp,
int cmd,
int id,
caddr_t addr)
{
xfs_mount_t *mp;
int error;
#ifndef _BANYAN_XFS
bhv_desc_t *bdp;
ASSERT(vfsp);
bdp = bhv_lookup_unlocked(VFS_BHVHEAD(vfsp), &xfs_vfsops);
mp = XFS_BHVTOM(bdp);
#else
ASSERT(vfsp);
mp = (xfs_mount_t *) vfsp->vfs_data;
ASSERT(mp->m_vfsp->vfs_fstype == xfs_fstype);
#endif
#ifdef DEBUG
/*
* Internal quota accounting check for debugging
*/
if (cmd == 50)
return (xfs_qm_internalqcheck(mp));
#endif
if (addr == NULL)
return XFS_ERROR(EINVAL);
/*
* The following commands are valid even when quotaoff.
*/
switch (cmd) {
/*
* truncate quota files. quota must be off.
*/
case Q_QUOTARM:
if (XFS_IS_QUOTA_ON(mp) || addr == NULL)
return XFS_ERROR(EINVAL);
return (xfs_qm_scall_trunc_qfiles(mp,
xfs_qm_import_qtype_flags((uint *)addr)));
/*
* Get quota status information.
*/
case Q_GETQSTAT:
return (xfs_qm_scall_getqstat(mp, addr));
/*
* QUOTAON for root f/s and quota enforcement on others..
* Quota accounting for non-root f/s's must be turned on
* at mount time.
*/
case Q_QUOTAON:
if (addr == NULL)
return XFS_ERROR(EINVAL);
return (xfs_qm_scall_quotaon(mp,
xfs_qm_import_flags((uint *)addr)));
}
if (! XFS_IS_QUOTA_ON(mp))
return (ESRCH);
switch (cmd) {
case Q_QUOTAOFF:
error = xfs_qm_scall_quotaoff(mp,
xfs_qm_import_flags((uint *)addr));
break;
/*
* Defaults to XFS_GETUQUOTA.
*/
case Q_XGETQUOTA:
error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_USER,
addr);
break;
/*
* Set limits, both hard and soft. Defaults to Q_SETUQLIM.
*/
case Q_XSETQLIM:
error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_USER,
addr);
break;
#ifndef _NOPROJQUOTAS
case Q_XSETPQLIM:
error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_PROJ,
addr);
break;
case Q_XGETPQUOTA:
error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_PROJ,
addr);
break;
/*
* Set limits, both hard and soft. Defaults to Q_SETUQLIM.
*/
#else
case Q_XSETPQLIM:
case Q_XGETPQUOTA:
error = ENOTSUP;
break;
#endif
/*
* Quotas are entirely undefined after quotaoff in XFS quotas.
* For instance, there's no way to set limits when quotaoff.
*/
case Q_ACTIVATE:
case Q_SETQUOTA:
case Q_GETQUOTA:
case Q_GETPQUOTA:
case Q_SETQLIM:
case Q_SETPQLIM:
case Q_SYNC:
error = ENOTSUP;
break;
default:
error = XFS_ERROR(EINVAL);
break;
}
return (error);
}
STATIC int
xfs_qm_scall_trunc_qfiles(
xfs_mount_t *mp,
uint flags)
{
int error;
xfs_inode_t *qip;
/*
* Function stolen from xfs_vnodeops.c
*/
extern int xfs_truncate_file(xfs_mount_t *mp, xfs_inode_t *ip);
if (!_CAP_ABLE(CAP_QUOTA_MGT))
return (EPERM);
error = 0;
if (!XFS_SB_VERSION_HASQUOTA(&mp->m_sb) || flags == 0)
return (EINVAL);
if ((flags & XFS_DQ_USER) &&
mp->m_sb.sb_uquotino != NULLFSINO) {
error = xfs_iget(mp, NULL,
mp->m_sb.sb_uquotino,
NULL,
&qip, 0);
if (! error) {
(void) xfs_truncate_file(mp, qip);
VN_RELE(XFS_ITOV(qip));
}
}
if ((flags & XFS_DQ_PROJ) &&
mp->m_sb.sb_pquotino != NULLFSINO) {
error = xfs_iget(mp, NULL,
mp->m_sb.sb_pquotino,
NULL,
&qip, 0);
if (! error) {
(void) xfs_truncate_file(mp, qip);
VN_RELE(XFS_ITOV(qip));
}
}
return (error);
}
/*
* This does two separate functions:
* Switch on quotas for the root file system. This will take effect only
* on reboot.
* Switch on (a given) quota enforcement for both root and non-root filesystems.
* This takes effect immediately.
*/
STATIC int
xfs_qm_scall_quotaon(
xfs_mount_t *mp,
uint flags)
{
extern dev_t rootdev;
int error, s;
uint qf;
__int64_t sbflags;
boolean_t rootfs;
boolean_t delay;
if (!_CAP_ABLE(CAP_QUOTA_MGT))
return (EPERM);
rootfs = (boolean_t) (mp->m_dev == rootdev);
delay = (boolean_t) ((flags & XFS_ALL_QUOTA_ACCT) != 0);
#ifdef _NOPROJQUOTAS
flags &= (XFS_MOUNT_UDQ_ACCT | XFS_MOUNT_UDQ_ENFD);
#else
flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
#endif
sbflags = 0;
if (flags == 0)
return (EINVAL);
/*
* Switching on quota accounting for non-root filesystems
* must be done at mount time. OTOH, root filesystem doesn't
* take a mount time option to enable quotas.
*/
if (!rootfs && delay) {
#ifdef QUOTADEBUG
printf("NON-root fs. Must enable acctg @ mount time\n");
#endif
return (EINVAL);
}
if (((flags & XFS_MOUNT_UDQ_ACCT) == 0 &&
(mp->m_flags & XFS_MOUNT_UDQ_ACCT) == 0 &&
(flags & XFS_MOUNT_UDQ_ENFD))
||
((flags & XFS_MOUNT_PDQ_ACCT) == 0 &&
(mp->m_flags & XFS_MOUNT_PDQ_ACCT) == 0 &&
(flags & XFS_MOUNT_PDQ_ENFD))) {
/*
* Can't enforce without accounting.
*/
#ifdef QUOTADEBUG
printf("Can't enforce without accounting.\n");
#endif
return (EINVAL);
}
/*
* If everything's upto-date incore, then don't waste time.
*/
if ((mp->m_flags & flags) == flags)
return (EEXIST);
/*
* Change superblock version (if needed) for the root filesystem
*/
if (rootfs && !XFS_SB_VERSION_HASQUOTA(&mp->m_sb)) {
#ifdef DEBUG
unsigned oldv = mp->m_sb.sb_versionnum;
#endif
s = XFS_SB_LOCK(mp);
XFS_SB_VERSION_ADDQUOTA(&mp->m_sb);
mp->m_sb.sb_uquotino = NULLFSINO;
mp->m_sb.sb_pquotino = NULLFSINO;
mp->m_sb.sb_qflags = 0;
XFS_SB_UNLOCK(mp, s);
#ifdef DEBUG
cmn_err(CE_NOTE,
"Old superblock version %x, converting to %x.",
oldv, mp->m_sb.sb_versionnum);
#endif
sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
XFS_SB_PQUOTINO | XFS_SB_QFLAGS);
}
/*
* Change sb_qflags on disk but not incore, if this is the root f/s.
*/
s = XFS_SB_LOCK(mp);
qf = mp->m_sb.sb_qflags;
mp->m_sb.sb_qflags = qf | flags;
XFS_SB_UNLOCK(mp, s);
/*
* There's nothing to change if it's the same.
*/
if (qf == flags && sbflags == 0)
return (EEXIST);
sbflags |= XFS_SB_QFLAGS;
if (error = xfs_qm_write_sb_changes(mp, sbflags))
return XFS_ERROR(error);
/*
* If we had just turned on quotas (ondisk) for rootfs, or if we aren't
* trying to switch on quota enforcement, we are done.
*/
if (delay ||
(flags & XFS_ALL_QUOTA_ENFD) == 0)
return (0);
if (! XFS_IS_QUOTA_RUNNING(mp))
return XFS_ERROR(ESRCH);
/*
* Switch on quota enforcement in core. This applies to both root
* and non-root file systems.
*/
mutex_lock(&mp->QI_QOFFLOCK, PINOD);
mp->m_flags |= (flags & XFS_ALL_QUOTA_ENFD);
mutex_unlock(&mp->QI_QOFFLOCK);
return (0);
}
/*
* Return quota status information, such as uquota-off, enforcements, etc.
*/
STATIC int
xfs_qm_scall_getqstat(
xfs_mount_t *mp,
caddr_t addr)
{
fs_quota_stat_t out;
xfs_inode_t *uip, *pip;
boolean_t tempuqip, temppqip;
uip = pip = NULL;
tempuqip = temppqip = B_FALSE;
bzero(&out, sizeof(fs_quota_stat_t));
out.qs_version = FS_QSTAT_VERSION;
if (! XFS_SB_VERSION_HASQUOTA(&mp->m_sb)) {
out.qs_uquota.qfs_ino = NULLFSINO;
out.qs_pquota.qfs_ino = NULLFSINO;
goto done;
}
out.qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_flags &
(XFS_ALL_QUOTA_ACCT|
XFS_ALL_QUOTA_ENFD));
out.qs_pad = 0;
out.qs_uquota.qfs_ino = mp->m_sb.sb_uquotino;
out.qs_pquota.qfs_ino = mp->m_sb.sb_pquotino;
if (mp->m_quotainfo) {
uip = mp->m_quotainfo->qi_uquotaip;
pip = mp->m_quotainfo->qi_pquotaip;
}
if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0,
&uip, 0) == 0)
tempuqip = B_TRUE;
}
if (!pip && mp->m_sb.sb_pquotino != NULLFSINO) {
if (xfs_iget(mp, NULL, mp->m_sb.sb_pquotino, 0,
&pip, 0) == 0)
temppqip = B_TRUE;
}
if (uip) {
out.qs_uquota.qfs_nblks = uip->i_d.di_nblocks;
out.qs_uquota.qfs_nextents = uip->i_d.di_nextents;
if (tempuqip)
VN_RELE(XFS_ITOV(uip));
}
if (pip) {
out.qs_pquota.qfs_nblks = XFS_FSB_TO_BB(mp, pip->i_d.di_nblocks);
out.qs_pquota.qfs_nextents = pip->i_d.di_nextents;
if (temppqip)
VN_RELE(XFS_ITOV(pip));
}
if (mp->m_quotainfo) {
out.qs_incoredqs = mp->QI_MPLNDQUOTS;
out.qs_btimelimit = mp->QI_BTIMELIMIT;
out.qs_itimelimit = mp->QI_ITIMELIMIT;
out.qs_rtbtimelimit = mp->QI_RTBTIMELIMIT;
out.qs_bwarnlimit = mp->QI_BWARNLIMIT;
out.qs_iwarnlimit = mp->QI_IWARNLIMIT;
}
done:
if (copyout(&out, addr, sizeof(fs_quota_stat_t)))
return XFS_ERROR(EFAULT);
return (0);
}
/*
* Adjust quota limits, and start/stop timers accordingly.
*/
STATIC int
xfs_qm_scall_setqlim(
xfs_mount_t *mp,
xfs_dqid_t id,
uint type,
caddr_t addr)
{
xfs_disk_dquot_t *ddq;
fs_disk_quota_t newlim;
xfs_dquot_t *dqp;
xfs_trans_t *tp;
int error;
xfs_qcnt_t hard, soft;
if (!_CAP_ABLE(CAP_QUOTA_MGT))
return XFS_ERROR(EPERM);
if (copyin(addr, &newlim, sizeof newlim))
return XFS_ERROR(EFAULT);
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);
mutex_unlock(&mp->QI_QOFFLOCK);
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 doesn't happen
* because we take the vfslock before calling xfs_qm_sysent).
*/
mutex_lock(&mp->QI_QOFFLOCK, PINOD);
/*
* 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_RELEASE_LOG_RES);
mutex_unlock(&mp->QI_QOFFLOCK);
ASSERT(error != ENOENT);
if (error != ESRCH)
xfs_qm_force_quotaoff(mp);
return (error);
}
xfs_dqtrace_entry(dqp, "Q_SETQLIM: AFT DQGET");
xfs_trans_dqjoin(tp, dqp);
ddq = &dqp->q_core;
/*
* Make sure that hardlimits are >= soft limits before changing.
* XXX Should we expand the interface to set individual limits ?
*/
hard = (newlim.d_blk_hardlimit != (xfs_qcnt_t) -1) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim.d_blk_hardlimit) :
ddq->d_blk_hardlimit;
soft = (newlim.d_blk_softlimit != (xfs_qcnt_t) -1) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim.d_blk_softlimit) :
ddq->d_blk_softlimit;
if (!hard || hard >= soft) {
ddq->d_blk_hardlimit = hard;
ddq->d_blk_softlimit = soft;
}
#ifdef QUOTADEBUG
else
printf("blkhard 0x%x < blksoft 0x%x\n", hard, soft);
#endif
hard = (newlim.d_rtb_hardlimit != (xfs_qcnt_t) -1) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim.d_rtb_hardlimit) :
ddq->d_rtb_hardlimit;
soft = (newlim.d_rtb_softlimit != (xfs_qcnt_t) -1) ?
(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim.d_rtb_softlimit) :
ddq->d_rtb_softlimit;
if (!hard || hard >= soft) {
ddq->d_rtb_hardlimit = hard;
ddq->d_rtb_softlimit = soft;
}
#ifdef QUOTADEBUG
else
printf("rtbhard 0x%x < rtbsoft 0x%x\n", hard, soft);
#endif
hard = (newlim.d_ino_hardlimit != (xfs_qcnt_t) -1) ?
(xfs_qcnt_t) newlim.d_ino_hardlimit : ddq->d_ino_hardlimit;
soft = (newlim.d_ino_softlimit != (xfs_qcnt_t) -1) ?
(xfs_qcnt_t) newlim.d_ino_softlimit : ddq->d_ino_softlimit;
if (!hard || hard >= soft) {
ddq->d_ino_hardlimit = hard;
ddq->d_ino_softlimit = soft;
}
#ifdef QUOTADEBUG
else
printf("ihard 0x%x < isoft 0x%x\n", hard, soft);
#endif
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.
*/
if (newlim.d_btimer > 0) {
mp->m_quotainfo->qi_btimelimit = newlim.d_btimer;
dqp->q_core.d_btimer = newlim.d_btimer;
}
if (newlim.d_itimer > 0) {
mp->m_quotainfo->qi_itimelimit = newlim.d_itimer;
dqp->q_core.d_itimer = newlim.d_itimer;
}
if (newlim.d_rtbtimer > 0) {
mp->m_quotainfo->qi_rtbtimelimit = newlim.d_rtbtimer;
dqp->q_core.d_rtbtimer = newlim.d_rtbtimer;
}
/*
* Ditto, for warning limits.
* (XXXare we actually doing these here?)
*/
if (newlim.d_bwarns > 0) {
mp->m_quotainfo->qi_bwarnlimit = newlim.d_bwarns;
dqp->q_core.d_bwarns = newlim.d_bwarns;
}
if (newlim.d_iwarns > 0) {
mp->m_quotainfo->qi_iwarnlimit = newlim.d_iwarns;
dqp->q_core.d_iwarns = newlim.d_iwarns;
}
if (newlim.d_rtbwarns > 0) {
dqp->q_core.d_rtbwarns = newlim.d_rtbwarns;
}
} else /* if (XFS_IS_QUOTA_ENFORCED(mp)) */ {
/*
* If the user is now over quota, start the timelimit.
* The user will not be 'warned'. Warnings increase only
* by request via Q_WARN.
*/
xfs_qm_adjust_dqtimers(mp, ddq);
}
dqp->dq_flags |= XFS_DQ_DIRTY;
xfs_trans_log_dquot(tp, dqp);
xfs_dqtrace_entry(dqp, "Q_SETQLIM: COMMIT");
xfs_trans_commit(tp, 0);
/* xfs_qm_dqprint(dqp); */
xfs_qm_dqrele(dqp);
mutex_unlock(&mp->QI_QOFFLOCK);
return (0);
}
STATIC int
xfs_qm_scall_getquota(
xfs_mount_t *mp,
xfs_dqid_t id,
uint type,
caddr_t addr)
{
xfs_dquot_t *dqp;
fs_disk_quota_t out;
int error;
#ifndef _BANYAN_XFS
if (id != get_current_cred()->cr_ruid && !_CAP_ABLE(CAP_QUOTA_MGT))
return XFS_ERROR(EPERM);
#else
if (id != curprocp->p_cred->cr_ruid && !_CAP_ABLE(CAP_QUOTA_MGT))
return XFS_ERROR(EPERM);
#endif
/*
* 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.
*/
if (error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp)) {
if (error != ESRCH && error != ENOENT)
xfs_qm_force_quotaoff(mp);
return (error);
}
xfs_dqtrace_entry(dqp, "Q_GETQUOTA SUCCESS");
/*
* If everything's NULL, this dquot doesn't quite exist as far as
* our utility programs are concerned.
*/
if (XFS_IS_DQUOT_UNINITIALIZED(dqp)) {
xfs_qm_dqput(dqp);
return (ENOENT);
}
/* xfs_qm_dqprint(dqp); */
/*
* Convert the disk dquot to the exportable format
*/
xfs_qm_export_dquot(mp, &dqp->q_core, &out);
error = copyout(&out, addr, sizeof(out));
xfs_qm_dqput(dqp);
return (error ? EFAULT : 0);
}
/*
* Turn off quota accounting and/or enforcement for all udquots and/or
* pdquots. Called only at mount time.
*
* This assumes that there are no dquots of this file system cached
* incore, and modifies the ondisk dquot directly. Therefore, for example,
* it is an error to call this twice, without purging the cache.
*/
STATIC int
xfs_qm_scall_quotaoff(
xfs_mount_t *mp,
uint flags)
{
uint dqtype;
int s;
int error;
uint inactivate_flags;
xfs_qoff_logitem_t *qoffstart;
extern dev_t rootdev;
if (!_CAP_ABLE(CAP_QUOTA_MGT))
return (EPERM);
/*
* Only root file system can have quotas enabled on disk but not
* in core. Note that quota utilities (like quotaoff) _expect_
* errno == EEXIST here.
*/
if (mp->m_dev != rootdev && (mp->m_flags & flags) == 0)
return (EEXIST);
ASSERT(mp->m_quotainfo);
error = 0;
#ifdef _NOPROJQUOTAS
flags &= (XFS_MOUNT_UDQ_ACCT | XFS_MOUNT_UDQ_ENFD);
#else
flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
#endif
/*
* We don't want to deal with two quotaoffs messing up each other,
* so we're going to serialize it. quotaoff isn't exactly a performance
* critical thing. XXXcurrently, we also take the vfslock.
*/
mutex_lock(&mp->QI_QOFFLOCK, PINOD);
/*
* Root file system may or may not have quotas on in core.
* We have to perform the quotaoff accordingly.
*/
if (mp->m_dev == rootdev) {
uint sbflags, newflags;
s = XFS_SB_LOCK(mp);
sbflags = mp->m_sb.sb_qflags;
if ((mp->m_flags & flags) == 0) {
mp->m_sb.sb_qflags &= flags;
newflags = mp->m_sb.sb_qflags;
XFS_SB_UNLOCK(mp, s);
mutex_unlock(&mp->QI_QOFFLOCK);
if (sbflags != newflags)
error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS);
return (error);
}
XFS_SB_UNLOCK(mp, s);
if ((sbflags & flags) != (mp->m_flags & flags)) {
/*
* Something must have been turned on, with
* delayed effect. ie. Something's in the SB,
* but not in the incore mount struct.
*/
ASSERT((sbflags & XFS_ALL_QUOTA_ACCT) !=
(mp->m_flags & XFS_ALL_QUOTA_ACCT));
/* XXX TBD */
/* We need to update the SB and mp separately */
return (EINVAL);
}
}
/*
* if we're just turning off quota enforcement, change mp and go.
*/
if ((flags & XFS_ALL_QUOTA_ACCT) == 0) {
mp->m_flags &= ~(flags);
s = XFS_SB_LOCK(mp);
mp->m_sb.sb_qflags = mp->m_flags;
XFS_SB_UNLOCK(mp, s);
mutex_unlock(&mp->QI_QOFFLOCK);
/* XXX what to do if error ? Revert back to old vals incore ? */
error = xfs_qm_write_sb_changes(mp, XFS_SB_QFLAGS);
return (error);
}
dqtype = 0;
inactivate_flags = 0;
/*
* If accounting is off, we must turn enforcement off, clear the
* quota 'CHKD' certificate to make it known that we have to
* do a quotacheck the next time this quota is turned on.
*/
if (flags & XFS_MOUNT_UDQ_ACCT) {
dqtype |= XFS_QMOPT_UQUOTA;
flags |= (XFS_MOUNT_UDQ_CHKD | XFS_MOUNT_UDQ_ENFD);
inactivate_flags |= XFS_MOUNT_UDQ_ACTIVE;
}
if (flags & XFS_MOUNT_PDQ_ACCT) {
dqtype |= XFS_QMOPT_PQUOTA;
flags |= (XFS_MOUNT_PDQ_CHKD | XFS_MOUNT_PDQ_ENFD);
inactivate_flags |= XFS_MOUNT_PDQ_ACTIVE;
}
/*
* Nothing to do? Don't complain.
* This happens when we're just turning off quota enforcement.
*/
if ((mp->m_flags & flags) == 0) {
mutex_unlock(&mp->QI_QOFFLOCK);
return (0);
}
/*
* Write the LI_QUOTAOFF log record, and do SB changes atomically,
* and synchronously.
*/
xfs_qm_log_quotaoff(mp, &qoffstart, flags);
/*
* Next we clear the XFS_MOUNT_*DQ_ACTIVE bit(s) in the mount struct
* to take care of the race between dqget and quotaoff. We don't take
* any special locks to reset these bits. All processes need to check
* these bits *after* taking inode lock(s) to see if the particular
* quota type is in the process of being turned off. If *ACTIVE, it is
* guaranteed that all dquot structures and all quotainode ptrs will all
* stay valid as long as that inode is kept locked.
*
* There is no turning back after this.
*/
mp->m_flags &= ~inactivate_flags;
/*
* Give back all the dquot reference(s) held by inodes.
* Here we go thru every single incore inode in this file system, and
* do a dqrele on the i_udquot/i_pdquot that it may have.
* Essentially, as long as somebody has an inode locked, this guarantees
* that quotas will not be turned off. This is handy because in a
* transaction once we lock the inode(s) and check for quotaon, we can
* depend on the quota inodes (and other things) being valid as long as
* we keep the lock(s).
*/
xfs_qm_dqrele_all_inodes(mp, flags);
/*
* Next we make the changes in the quota flag in the mount struct.
* This isn't protected by a particular lock directly, because we
* don't want to take a mrlock everytime we depend on quotas being on.
*/
mp->m_flags &= ~(flags);
/*
* Go through all the dquots of this file system and purge them,
* according to what was turned off.
* At this point if everybody played according to the rules and didnt
* slip thru the cracks, we should be able to free every single dquot
* that is affected by this quotaoff all the time.
*/
(void) xfs_qm_dqpurge_all(mp, dqtype|XFS_QMOPT_QUOTAOFF);
/*
* Transactions that had started before ACTIVE state bit was cleared
* could have logged many dquots, so they'd have higher LSNs than
* the first QUOTAOFF log record does. If we happen to crash when
* the tail of the log has gone past the QUOTAOFF record, but
* before the last dquot modification, those dquots __will__
* recover, and that's not good.
*
* So, we have QUOTAOFF start and end logitems; the start
* logitem won't get overwritten until the end logitem appears...
*/
xfs_qm_log_quotaoff_end(mp, qoffstart, flags);
/*
* If quotas is completely disabled, close shop.
*/
if ((flags & XFS_MOUNT_QUOTA_ALL) == XFS_MOUNT_QUOTA_ALL) {
mutex_unlock(&mp->QI_QOFFLOCK);
xfs_qm_destroy_quotainfo(mp);
return (0);
}
/*
* Release our quotainode references, and vn_purge them,
* if we don't need them anymore.
*/
if ((dqtype & XFS_QMOPT_UQUOTA) &&
mp->QI_UQIP) {
XFS_PURGE_INODE(XFS_ITOV(mp->QI_UQIP));
mp->QI_UQIP = NULL;
}
if ((dqtype & XFS_QMOPT_PQUOTA) &&
mp->QI_PQIP) {
XFS_PURGE_INODE(XFS_ITOV(mp->QI_PQIP));
mp->QI_PQIP = NULL;
}
mutex_unlock(&mp->QI_QOFFLOCK);
return (error);
}
STATIC int
xfs_qm_log_quotaoff_end(
xfs_mount_t *mp,
xfs_qoff_logitem_t *startqoff,
uint flags)
{
xfs_trans_t *tp;
int error;
xfs_qoff_logitem_t *qoffi;
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF_END);
/* XXX can this ever fail ??? */
(void) xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2,
0,
0,
XFS_DEFAULT_LOG_COUNT);
qoffi = xfs_trans_get_qoff_item(tp, startqoff,
flags & XFS_ALL_QUOTA_ACCT);
xfs_trans_log_quotaoff_item(tp, qoffi);
/*
* We have to make sure that the transaction is secure on disk before
* we return and actually stop quota accounting. So, make it synchronous.
* We don't care about quotoff's performance.
*/
xfs_trans_set_sync(tp);
error = xfs_trans_commit(tp, 0);
return (error);
}
STATIC int
xfs_qm_log_quotaoff(
xfs_mount_t *mp,
xfs_qoff_logitem_t **qoffstartp,
uint flags)
{
xfs_trans_t *tp;
int error, s;
xfs_qoff_logitem_t *qoffi;
uint oldsbqflag;
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QUOTAOFF);
if (error = xfs_trans_reserve(tp, 0,
sizeof(xfs_qoff_logitem_t) * 2 +
mp->m_sb.sb_sectsize + 128,
0,
0,
XFS_DEFAULT_LOG_COUNT)) {
goto error0;
}
qoffi = xfs_trans_get_qoff_item(tp, NULL, flags & XFS_ALL_QUOTA_ACCT);
xfs_trans_log_quotaoff_item(tp, qoffi);
s = XFS_SB_LOCK(mp);
oldsbqflag = mp->m_sb.sb_qflags;
mp->m_sb.sb_qflags = (mp->m_flags & ~(flags)) & XFS_MOUNT_QUOTA_ALL;
XFS_SB_UNLOCK(mp, s);
xfs_mod_sb(tp, XFS_SB_QFLAGS);
/*
* We have to make sure that the transaction is secure on disk before
* we return and actually stop quota accounting. So, make it synchronous.
* We don't care about quotoff's performance.
*/
xfs_trans_set_sync(tp);
error = xfs_trans_commit(tp, 0);
error0:
if (error) {
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
/*
* No one else is modifying sb_qflags, so this is OK.
* We still hold the quotaofflock.
*/
s = XFS_SB_LOCK(mp);
mp->m_sb.sb_qflags = oldsbqflag;
XFS_SB_UNLOCK(mp, s);
}
*qoffstartp = qoffi;
return (error);
}
/*
* Translate an internal style on-disk-dquot to the exportable format.
* Currently, the main difference is that the counters/limits are all in
* Basic Blocks (BBs) instead of the internal FSBs.
* This is used by qm_sysent to service syscalls like quotactl(Q_XGETQUOTA)
*/
STATIC void
xfs_qm_export_dquot(
xfs_mount_t *mp,
xfs_disk_dquot_t *src,
struct fs_disk_quota *dst)
{
bzero(dst, 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 = src->d_id;
dst->d_blk_hardlimit = (__uint64_t)
XFS_FSB_TO_BB(mp, src->d_blk_hardlimit);
dst->d_blk_softlimit = (__uint64_t)
XFS_FSB_TO_BB(mp, src->d_blk_softlimit);
dst->d_ino_hardlimit = (__uint64_t) src->d_ino_hardlimit;
dst->d_ino_softlimit = (__uint64_t) src->d_ino_softlimit;
dst->d_bcount = (__uint64_t) XFS_FSB_TO_BB(mp, src->d_bcount);
dst->d_icount = (__uint64_t) src->d_icount;
dst->d_btimer = (__uint32_t) src->d_btimer;
dst->d_itimer = (__uint32_t) src->d_itimer;
dst->d_iwarns = src->d_iwarns;
dst->d_bwarns = src->d_bwarns;
dst->d_rtb_hardlimit = (__uint64_t)
XFS_FSB_TO_BB(mp, src->d_rtb_hardlimit);
dst->d_rtb_softlimit = (__uint64_t)
XFS_FSB_TO_BB(mp, src->d_rtb_softlimit);
dst->d_rtbcount = (__uint64_t) XFS_FSB_TO_BB(mp, src->d_rtbcount);
dst->d_rtbtimer = (__uint32_t) src->d_rtbtimer;
dst->d_rtbwarns = src->d_rtbwarns;
/*
* Internally, we don't reset all the timers when quota enforcement
* gets turned off. No need to confuse the userlevel code,
* so return zeroes in that case.
*/
if (! XFS_IS_QUOTA_ENFORCED(mp)) {
dst->d_btimer = 0;
dst->d_itimer = 0;
dst->d_rtbtimer = 0;
}
#ifdef QUOTADEBUG
if (XFS_IS_QUOTA_ENFORCED(mp) && 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
}
STATIC uint
xfs_qm_import_qtype_flags(
uint *uflagsp)
{
uint uflags;
if (copyin(uflagsp, &uflags, sizeof(uint)) < 0) {
return (0);
}
/*
* Can't be both at the same time.
*/
if (((uflags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) ==
(XFS_PROJ_QUOTA | XFS_USER_QUOTA)) ||
((uflags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) == 0))
return (0);
return (uflags & XFS_USER_QUOTA) ?
XFS_DQ_USER : XFS_DQ_PROJ;
}
STATIC uint
xfs_qm_export_qtype_flags(
uint flags)
{
/*
* Can't be both at the same time.
*/
ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) !=
(XFS_PROJ_QUOTA | XFS_USER_QUOTA));
ASSERT((flags & (XFS_PROJ_QUOTA | XFS_USER_QUOTA)) != 0);
return (flags & XFS_DQ_USER) ?
XFS_USER_QUOTA : XFS_PROJ_QUOTA;
}
STATIC uint
xfs_qm_import_flags(
uint *uflagsp)
{
uint flags, uflags;
if (copyin(uflagsp, &uflags, sizeof(uint)) < 0)
return (0);
flags = 0;
if (uflags & XFS_QUOTA_UDQ_ACCT)
flags |= XFS_MOUNT_UDQ_ACCT;
if (uflags & XFS_QUOTA_PDQ_ACCT)
flags |= XFS_MOUNT_PDQ_ACCT;
if (uflags & XFS_QUOTA_UDQ_ENFD)
flags |= XFS_MOUNT_UDQ_ENFD;
if (uflags & XFS_QUOTA_PDQ_ENFD)
flags |= XFS_MOUNT_PDQ_ENFD;
return (flags);
}
STATIC uint
xfs_qm_export_flags(
uint flags)
{
uint uflags;
uflags = 0;
if (flags & XFS_MOUNT_UDQ_ACCT)
uflags |= XFS_QUOTA_UDQ_ACCT;
if (flags & XFS_MOUNT_PDQ_ACCT)
uflags |= XFS_QUOTA_PDQ_ACCT;
if (flags & XFS_MOUNT_UDQ_ENFD)
uflags |= XFS_QUOTA_UDQ_ENFD;
if (flags & XFS_MOUNT_PDQ_ENFD)
uflags |= XFS_QUOTA_PDQ_ENFD;
return (uflags);
}
/*
* Go thru all the inodes in the file system, releasing their dquots.
* This is only called as a result of turning off user or project (or both)
* quota accounting.
* Note that the mount structure gets modified to indicate that quotas is off
* AFTER this.
*/
STATIC void
xfs_qm_dqrele_all_inodes(
xfs_mount_t *mp,
uint flags)
{
vmap_t vmap;
xfs_inode_t *ip;
uint ireclaims;
vnode_t *vp;
ASSERT(mp->m_quotainfo);
again:
XFS_MOUNT_ILOCK(mp);
ip = mp->m_inodes;
if (ip == NULL)
goto out;
do {
/*
* Rootinode has blocks associated with it. How about
* rbmip and rsumip ??? XXX
*/
if (ip == mp->QI_UQIP || ip == mp->QI_PQIP) {
ASSERT(ip->i_udquot == NULL);
ASSERT(ip->i_pdquot == NULL);
ip = ip->i_mnext;
continue;
}
vp = XFS_ITOV(ip);
if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0) {
/*
* Sample vp mapping while holding the mplock, lest
* we come across a non-existent vnode.
*/
VMAP(vp, vmap);
ireclaims = mp->m_ireclaims;
XFS_MOUNT_IUNLOCK(mp);
#ifndef _IRIX62_XFS_ONLY
if (!(vp = vn_get(vp, &vmap, 0)))
goto again;
#else
if (!(vp = vn_get(vp, &vmap)))
goto again;
ASSERT(ip == XFS_VTOI(vp));
#endif
xfs_ilock(ip, XFS_ILOCK_EXCL);
VN_RELE(vp);
} else {
ireclaims = mp->m_ireclaims;
XFS_MOUNT_IUNLOCK(mp);
}
/*
* We don't keep the mountlock across the dqrele() call,
* since it can take a while..
*/
if ((flags & XFS_MOUNT_UDQ_ACCT) && ip->i_udquot) {
xfs_qm_dqrele(ip->i_udquot);
ip->i_udquot = NULL;
}
if ((flags & XFS_MOUNT_PDQ_ACCT) && ip->i_pdquot) {
xfs_qm_dqrele(ip->i_pdquot);
ip->i_pdquot = NULL;
}
xfs_iunlock(ip, XFS_ILOCK_EXCL);
XFS_MOUNT_ILOCK(mp);
if (mp->m_ireclaims != ireclaims) {
/* XXX use a sentinel */
XFS_MOUNT_IUNLOCK(mp);
goto again;
}
ip = ip->i_mnext;
} while (ip != mp->m_inodes);
out:
XFS_MOUNT_IUNLOCK(mp);
return;
}
/*------------------------------------------------------------------------*/
#ifdef DEBUG
/*
* This contains all the test functions for XFS disk quotas.
* Currently it does an quota accounting check. ie. it walks through
* all inodes in the file system, calculating the dquot accounting fields,
* and prints out any inconsistencies.
*/
xfs_dqhash_t *qmtest_udqtab;
xfs_dqhash_t *qmtest_pdqtab;
int qmtest_hashmask;
int qmtest_nfails;
mutex_t qcheck_lock;
#define DQTEST_HASHVAL(mp, id) (((__psunsigned_t)(mp) + \
(__psunsigned_t)(id)) & \
(qmtest_hashmask - 1))
#define DQTEST_HASH(mp, id, type) ((type & XFS_DQ_USER) ? \
(qmtest_udqtab + \
DQTEST_HASHVAL(mp, id)) : \
(qmtest_pdqtab + \
DQTEST_HASHVAL(mp, id)))
#define DQTEST_LIST_PRINT(l, NXT, title) \
{ \
xfs_dqtest_t *dqp; int i = 0;\
printf("%s (#%d)\n", title, (int) (l)->qh_nelems); \
for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \
dqp = (xfs_dqtest_t *)dqp->NXT) { \
printf("\t%d\.\t\"%d (%s)\"\t bcnt = %d, icnt = %d\n", \
++i, (int) dqp->d_id, \
DQFLAGTO_TYPESTR(dqp), \
(int) dqp->d_bcount, \
(int) dqp->d_icount); } \
}
typedef struct dqtest {
xfs_dqmarker_t q_lists;
xfs_dqhash_t *q_hash; /* the hashchain header */
struct xfs_mount *q_mount; /* filesystem this relates to */
xfs_dqid_t d_id; /* user id or proj id */
xfs_qcnt_t d_bcount; /* # disk blocks owned by the user */
xfs_qcnt_t d_icount; /* # inodes owned by the user */
} xfs_dqtest_t;
STATIC void
xfs_qm_hashinsert(xfs_dqhash_t *h, xfs_dqtest_t *dqp)
{
xfs_dquot_t *d;
if ((d) = (h)->qh_next)
(d)->HL_PREVP = &((dqp)->HL_NEXT);
(dqp)->HL_NEXT = d;
(dqp)->HL_PREVP = &((h)->qh_next);
(h)->qh_next = (xfs_dquot_t *)dqp;
(h)->qh_version++;
(h)->qh_nelems++;
}
STATIC void
xfs_qm_dqtest_print(
xfs_dqtest_t *d)
{
printf( "-----------DQTEST DQUOT----------------\n");
printf( "---- dquot ID = %d\n", (int) d->d_id);
printf( "---- type = %s\n", XFS_QM_ISUDQ(d) ? "USR" :
"PRJ");
printf( "---- fs = 0x%x\n", d->q_mount);
printf( "---- bcount = %llu (0x%x)\n",
d->d_bcount,
(int)d->d_bcount);
printf( "---- icount = %llu (0x%x)\n",
d->d_icount,
(int)d->d_icount);
printf( "---------------------------\n");
}
STATIC void
xfs_qm_dqtest_failed(
xfs_dqtest_t *d,
xfs_dquot_t *dqp,
char *reason,
xfs_qcnt_t a,
xfs_qcnt_t b,
int error)
{
qmtest_nfails++;
if (error)
printf("quotacheck failed for %d, error = %d\nreason = %s\n",
d->d_id, error, reason);
else
printf("quotacheck failed for %d (%s) [%d != %d]\n",
d->d_id, reason, (int)a, (int)b);
xfs_qm_dqtest_print(d);
if (dqp)
xfs_qm_dqprint(dqp);
}
STATIC int
xfs_dqtest_cmp2(
xfs_dqtest_t *d,
xfs_dquot_t *dqp)
{
int err = 0;
if (dqp->q_core.d_icount != d->d_icount) {
xfs_qm_dqtest_failed(d, dqp, "icount mismatch",
dqp->q_core.d_icount, d->d_icount, 0);
err++;
}
if (dqp->q_core.d_bcount != d->d_bcount) {
xfs_qm_dqtest_failed(d, dqp, "bcount mismatch",
dqp->q_core.d_bcount, d->d_bcount, 0);
err++;
}
if (dqp->q_core.d_blk_softlimit &&
dqp->q_core.d_bcount >= dqp->q_core.d_blk_softlimit) {
if (dqp->q_core.d_btimer == 0 &&
dqp->q_core.d_id != 0) {
printf("%d [%s] [0x%x] BLK TIMER NOT STARTED\n",
(int) d->d_id, XFS_QM_ISUDQ(d) ? "USR" : "PRJ",
d->q_mount);
err++;
}
}
if (dqp->q_core.d_ino_softlimit &&
dqp->q_core.d_icount >= dqp->q_core.d_ino_softlimit) {
if (dqp->q_core.d_itimer == 0 &&
dqp->q_core.d_id != 0) {
printf("%d [%s] [0x%x] INO TIMER NOT STARTED\n",
(int) d->d_id, XFS_QM_ISUDQ(d) ? "USR" : "PRJ",
d->q_mount);
err++;
}
}
if (!err) {
printf("%d [%s] [0x%x] qchecked\n",
(int) d->d_id, XFS_QM_ISUDQ(d) ? "USR" : "PRJ", d->q_mount);
}
return (err);
}
STATIC void
xfs_dqtest_cmp(
xfs_dqtest_t *d)
{
xfs_dquot_t *dqp;
int error;
xfs_qm_dqtest_print(d);
if (error = xfs_qm_dqget(d->q_mount, NULL, d->d_id, d->dq_flags, 0,
&dqp)) {
xfs_qm_dqtest_failed(d, NULL, "dqget failed", 0, 0, error);
return;
}
xfs_dqtest_cmp2(d, dqp);
xfs_qm_dqput(dqp);
}
STATIC int
xfs_qm_internalqcheck_dqget(
xfs_mount_t *mp,
xfs_dqid_t id,
uint type,
xfs_dqtest_t **O_dq)
{
xfs_dqtest_t *d;
xfs_dqhash_t *h;
h = DQTEST_HASH(mp, id, type);
for (d = (xfs_dqtest_t *) h->qh_next; d != NULL;
d = (xfs_dqtest_t *) d->HL_NEXT) {
/* DQTEST_LIST_PRINT(h, HL_NEXT, "@@@@@ dqtestlist @@@@@"); */
if (d->d_id == id && mp == d->q_mount) {
*O_dq = d;
return (0);
}
}
d = kmem_zalloc(sizeof(xfs_dqtest_t), KM_SLEEP);
d->dq_flags = type;
d->d_id = id;
d->q_mount = mp;
/*
printf("allocing 0x%x, %d hash %d, [%s]\n",
d, d->d_id,
(int) DQTEST_HASHVAL(mp, id),
XFS_QM_ISUDQ(d) ? "USR" : "PRJ");
*/
d->q_hash = h;
xfs_qm_hashinsert(h, d);
*O_dq = d;
return (0);
}
STATIC int
xfs_qm_internalqcheck_get_dquots(
xfs_mount_t *mp,
xfs_dqid_t uid,
xfs_dqid_t prid,
xfs_dqtest_t **ud,
xfs_dqtest_t **pd)
{
if (XFS_IS_UQUOTA_ON(mp))
xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud);
if (XFS_IS_PQUOTA_ON(mp))
xfs_qm_internalqcheck_dqget(mp, prid, XFS_DQ_PROJ, pd);
return (0);
}
STATIC int
xfs_qm_internalqcheck_dqadjust(
xfs_inode_t *ip,
xfs_dqtest_t *d)
{
d->d_icount++;
d->d_bcount += (xfs_qcnt_t)ip->i_d.di_nblocks;
return (0);
}
/* ARGSUSED */
STATIC int
xfs_qm_internalqcheck_adjust(
xfs_mount_t *mp, /* mount point for filesystem */
xfs_trans_t *tp, /* transaction pointer */
xfs_ino_t ino, /* inode number to get data for */
void *buffer, /* not used */
daddr_t bno) /* starting block of inode cluster */
{
xfs_inode_t *ip;
xfs_dqtest_t *ud, *pd;
uint lock_flags;
extern dev_t rootdev;
boolean_t ipreleased;
ASSERT(XFS_IS_QUOTA_ON(mp));
/* XXX */
if (ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_pquotino)
return (0);
ipreleased = B_FALSE;
again:
lock_flags = XFS_ILOCK_SHARED;
if (xfs_iget(mp, tp, ino, lock_flags, &ip, bno))
return (0);
if (ip->i_d.di_mode == 0) {
xfs_iput(ip, lock_flags);
return (0);
}
/*
* This inode can have blocks after eof which can get released
* when we send it to inactive. Since we don't check the dquot
* until the after all our calculations are done, we must get rid
* of those now.
*/
if (! ipreleased) {
xfs_iput(ip, lock_flags);
ipreleased = B_TRUE;
goto again;
}
if (xfs_qm_internalqcheck_get_dquots(mp,
(xfs_dqid_t) ip->i_d.di_uid,
(xfs_dqid_t) ip->i_d.di_projid,
&ud, &pd)) {
xfs_iput(ip, lock_flags);
return (0);
}
if (mp->m_dev != rootdev) {
if (ip->i_d.di_uid == 0)
printf("uid 0 ino %d, bcount 0x%x\n",
(int) ip->i_ino, (int) ip->i_d.di_nblocks);
if (ip->i_d.di_projid == 0)
printf("projid 0 ino %d, bcount 0x%x\n",
(int) ip->i_ino, (int) ip->i_d.di_nblocks);
}
if (XFS_IS_UQUOTA_ON(mp)) {
ASSERT(ud);
(void) xfs_qm_internalqcheck_dqadjust(ip, ud);
}
if (XFS_IS_PQUOTA_ON(mp)) {
ASSERT(pd);
(void) xfs_qm_internalqcheck_dqadjust(ip, pd);
}
xfs_iput(ip, lock_flags);
return (1);
}
/* PRIVATE, debugging */
int
xfs_qm_internalqcheck(
xfs_mount_t *mp)
{
ino64_t lastino;
int done, count;
int i;
xfs_dqtest_t *d, *e;
xfs_dqhash_t *h1;
lastino = 0;
qmtest_hashmask = 32;
count = 5;
done = 0;
qmtest_nfails = 0;
mutex_lock(&qcheck_lock, PINOD);
/* There should be absolutely no quota activity while this
is going on. */
qmtest_udqtab = kmem_zalloc(qmtest_hashmask *
sizeof(xfs_dqhash_t), KM_SLEEP);
qmtest_pdqtab = kmem_zalloc(qmtest_hashmask *
sizeof(xfs_dqhash_t), KM_SLEEP);
do {
/*
* Iterate thru all the inodes in the file system,
* adjusting the corresponding dquot counters
*/
if (xfs_bulkstat(mp, NULL, &lastino, &count,
xfs_qm_internalqcheck_adjust,
0,
NULL,
&done))
break;
} while (! done);
printf("Checking results against system dquots\n");
for (i = 0; i < qmtest_hashmask; i++) {
h1 = &qmtest_udqtab[i];
for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
xfs_dqtest_cmp(d);
e = (xfs_dqtest_t *) d->HL_NEXT;
kmem_free(d, sizeof(xfs_dqtest_t));
d = e;
}
h1 = &qmtest_pdqtab[i];
for (d = (xfs_dqtest_t *) h1->qh_next; d != NULL; ) {
xfs_dqtest_cmp(d);
e = (xfs_dqtest_t *) d->HL_NEXT;
kmem_free(d, sizeof(xfs_dqtest_t));
d = e;
}
}
if (qmtest_nfails) {
printf("************** quotacheck failed **************\n");
printf("failures = %d\n", qmtest_nfails);
} else {
printf("************** quotacheck successful! **************\n");
}
kmem_free(qmtest_udqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
kmem_free(qmtest_pdqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
mutex_unlock(&qcheck_lock);
return (qmtest_nfails);
}
#endif /* DEBUG */
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