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Diffstat (limited to 'fs/xfs/quota/xfs_qm_syscalls.c')
-rw-r--r--fs/xfs/quota/xfs_qm_syscalls.c1458
1 files changed, 1458 insertions, 0 deletions
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
new file mode 100644
index 000000000000..229f5b5a2d25
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -0,0 +1,1458 @@
+/*
+ * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+#include "xfs_utils.h"
+
+#include "xfs_qm.h"
+
+#ifdef DEBUG
+# define qdprintk(s, args...) cmn_err(CE_DEBUG, s, ## args)
+#else
+# define qdprintk(s, args...) do { } while (0)
+#endif
+
+STATIC int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
+STATIC int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint,
+ fs_disk_quota_t *);
+STATIC int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *);
+STATIC int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint,
+ fs_disk_quota_t *);
+STATIC int xfs_qm_scall_quotaon(xfs_mount_t *, uint);
+STATIC int xfs_qm_scall_quotaoff(xfs_mount_t *, uint, boolean_t);
+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 *,
+ fs_disk_quota_t *);
+
+
+/*
+ * The main distribution switch of all XFS quotactl system calls.
+ */
+int
+xfs_qm_quotactl(
+ struct bhv_desc *bdp,
+ int cmd,
+ int id,
+ xfs_caddr_t addr)
+{
+ xfs_mount_t *mp;
+ int error;
+ struct vfs *vfsp;
+
+ vfsp = bhvtovfs(bdp);
+ mp = XFS_VFSTOM(vfsp);
+
+ if (addr == NULL && cmd != Q_SYNC)
+ return XFS_ERROR(EINVAL);
+ if (id < 0 && cmd != Q_SYNC)
+ return XFS_ERROR(EINVAL);
+
+ /*
+ * The following commands are valid even when quotaoff.
+ */
+ switch (cmd) {
+ /*
+ * truncate quota files. quota must be off.
+ */
+ case Q_XQUOTARM:
+ if (XFS_IS_QUOTA_ON(mp) || addr == NULL)
+ return XFS_ERROR(EINVAL);
+ if (vfsp->vfs_flag & VFS_RDONLY)
+ return XFS_ERROR(EROFS);
+ return (xfs_qm_scall_trunc_qfiles(mp,
+ xfs_qm_import_qtype_flags(*(uint *)addr)));
+ /*
+ * Get quota status information.
+ */
+ case Q_XGETQSTAT:
+ return (xfs_qm_scall_getqstat(mp, (fs_quota_stat_t *)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_XQUOTAON:
+ if (addr == NULL)
+ return XFS_ERROR(EINVAL);
+ if (vfsp->vfs_flag & VFS_RDONLY)
+ return XFS_ERROR(EROFS);
+ return (xfs_qm_scall_quotaon(mp,
+ xfs_qm_import_flags(*(uint *)addr)));
+ case Q_XQUOTAOFF:
+ if (vfsp->vfs_flag & VFS_RDONLY)
+ return XFS_ERROR(EROFS);
+ break;
+
+ default:
+ break;
+ }
+
+ if (! XFS_IS_QUOTA_ON(mp))
+ return XFS_ERROR(ESRCH);
+
+ switch (cmd) {
+ case Q_XQUOTAOFF:
+ if (vfsp->vfs_flag & VFS_RDONLY)
+ return XFS_ERROR(EROFS);
+ error = xfs_qm_scall_quotaoff(mp,
+ xfs_qm_import_flags(*(uint *)addr),
+ B_FALSE);
+ break;
+
+ /*
+ * Defaults to XFS_GETUQUOTA.
+ */
+ case Q_XGETQUOTA:
+ error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_USER,
+ (fs_disk_quota_t *)addr);
+ break;
+ /*
+ * Set limits, both hard and soft. Defaults to Q_SETUQLIM.
+ */
+ case Q_XSETQLIM:
+ if (vfsp->vfs_flag & VFS_RDONLY)
+ return XFS_ERROR(EROFS);
+ error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_USER,
+ (fs_disk_quota_t *)addr);
+ break;
+
+ case Q_XSETGQLIM:
+ if (vfsp->vfs_flag & VFS_RDONLY)
+ return XFS_ERROR(EROFS);
+ error = xfs_qm_scall_setqlim(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
+ (fs_disk_quota_t *)addr);
+ break;
+
+
+ case Q_XGETGQUOTA:
+ error = xfs_qm_scall_getquota(mp, (xfs_dqid_t)id, XFS_DQ_GROUP,
+ (fs_disk_quota_t *)addr);
+ break;
+
+ /*
+ * Quotas are entirely undefined after quotaoff in XFS quotas.
+ * For instance, there's no way to set limits when quotaoff.
+ */
+
+ default:
+ error = XFS_ERROR(EINVAL);
+ break;
+ }
+
+ return (error);
+}
+
+/*
+ * Turn off quota accounting and/or enforcement for all udquots and/or
+ * gdquots. Called only at unmount 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,
+ boolean_t force)
+{
+ uint dqtype;
+ unsigned long s;
+ int error;
+ uint inactivate_flags;
+ xfs_qoff_logitem_t *qoffstart;
+ int nculprits;
+
+ if (!force && !capable(CAP_SYS_ADMIN))
+ return XFS_ERROR(EPERM);
+ /*
+ * No 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_qflags & flags) == 0)
+ return XFS_ERROR(EEXIST);
+ error = 0;
+
+ flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
+
+ /*
+ * 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.
+ * If quotaoff, then we must be dealing with the root filesystem.
+ */
+ ASSERT(mp->m_quotainfo);
+ if (mp->m_quotainfo)
+ mutex_lock(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+
+ ASSERT(mp->m_quotainfo);
+
+ /*
+ * If we're just turning off quota enforcement, change mp and go.
+ */
+ if ((flags & XFS_ALL_QUOTA_ACCT) == 0) {
+ mp->m_qflags &= ~(flags);
+
+ s = XFS_SB_LOCK(mp);
+ mp->m_sb.sb_qflags = mp->m_qflags;
+ XFS_SB_UNLOCK(mp, s);
+ mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+ /* 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_UQUOTA_ACCT) {
+ dqtype |= XFS_QMOPT_UQUOTA;
+ flags |= (XFS_UQUOTA_CHKD | XFS_UQUOTA_ENFD);
+ inactivate_flags |= XFS_UQUOTA_ACTIVE;
+ }
+ if (flags & XFS_GQUOTA_ACCT) {
+ dqtype |= XFS_QMOPT_GQUOTA;
+ flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD);
+ inactivate_flags |= XFS_GQUOTA_ACTIVE;
+ }
+
+ /*
+ * Nothing to do? Don't complain. This happens when we're just
+ * turning off quota enforcement.
+ */
+ if ((mp->m_qflags & flags) == 0) {
+ mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+ 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_qflags &= ~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_gdquot 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_qflags &= ~(flags);
+
+ /*
+ * Go through all the dquots of this file system and purge them,
+ * according to what was turned off. We may not be able to get rid
+ * of all dquots, because dquots can have temporary references that
+ * are not attached to inodes. eg. xfs_setattr, xfs_create.
+ * So, if we couldn't purge all the dquots from the filesystem,
+ * we can't get rid of the incore data structures.
+ */
+ while ((nculprits = xfs_qm_dqpurge_all(mp, dqtype|XFS_QMOPT_QUOTAOFF)))
+ delay(10 * nculprits);
+
+ /*
+ * 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(&(XFS_QI_QOFFLOCK(mp)));
+ 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) && XFS_QI_UQIP(mp)) {
+ XFS_PURGE_INODE(XFS_QI_UQIP(mp));
+ XFS_QI_UQIP(mp) = NULL;
+ }
+ if ((dqtype & XFS_QMOPT_GQUOTA) && XFS_QI_GQIP(mp)) {
+ XFS_PURGE_INODE(XFS_QI_GQIP(mp));
+ XFS_QI_GQIP(mp) = NULL;
+ }
+ mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+ return (error);
+}
+
+STATIC int
+xfs_qm_scall_trunc_qfiles(
+ xfs_mount_t *mp,
+ uint flags)
+{
+ int error;
+ xfs_inode_t *qip;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return XFS_ERROR(EPERM);
+ error = 0;
+ if (!XFS_SB_VERSION_HASQUOTA(&mp->m_sb) || flags == 0) {
+ qdprintk("qtrunc flags=%x m_qflags=%x\n", flags, mp->m_qflags);
+ return XFS_ERROR(EINVAL);
+ }
+
+ if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) {
+ error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0);
+ if (! error) {
+ (void) xfs_truncate_file(mp, qip);
+ VN_RELE(XFS_ITOV(qip));
+ }
+ }
+
+ if ((flags & XFS_DQ_GROUP) && mp->m_sb.sb_gquotino != NULLFSINO) {
+ error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0);
+ if (! error) {
+ (void) xfs_truncate_file(mp, qip);
+ VN_RELE(XFS_ITOV(qip));
+ }
+ }
+
+ 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.)
+ */
+STATIC int
+xfs_qm_scall_quotaon(
+ xfs_mount_t *mp,
+ uint flags)
+{
+ int error;
+ unsigned long s;
+ uint qf;
+ uint accflags;
+ __int64_t sbflags;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return XFS_ERROR(EPERM);
+
+ flags &= (XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD);
+ /*
+ * Switching on quota accounting must be done at mount time.
+ */
+ accflags = flags & XFS_ALL_QUOTA_ACCT;
+ flags &= ~(XFS_ALL_QUOTA_ACCT);
+
+ sbflags = 0;
+
+ if (flags == 0) {
+ qdprintk("quotaon: zero flags, m_qflags=%x\n", 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))) {
+ qdprintk("Can't enforce without acct, flags=%x sbflags=%x\n",
+ flags, mp->m_sb.sb_qflags);
+ return XFS_ERROR(EINVAL);
+ }
+ /*
+ * If everything's upto-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.
+ */
+ 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) == 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)) ||
+ (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(&(XFS_QI_QOFFLOCK(mp)), PINOD);
+ mp->m_qflags |= (flags & XFS_ALL_QUOTA_ENFD);
+ mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+ return (0);
+}
+
+
+
+/*
+ * Return quota status information, such as uquota-off, enforcements, etc.
+ */
+STATIC int
+xfs_qm_scall_getqstat(
+ xfs_mount_t *mp,
+ fs_quota_stat_t *out)
+{
+ xfs_inode_t *uip, *gip;
+ boolean_t tempuqip, tempgqip;
+
+ uip = gip = NULL;
+ tempuqip = tempgqip = B_FALSE;
+ memset(out, 0, 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_gquota.qfs_ino = NULLFSINO;
+ return (0);
+ }
+ out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags &
+ (XFS_ALL_QUOTA_ACCT|
+ XFS_ALL_QUOTA_ENFD));
+ out->qs_pad = 0;
+ out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino;
+ out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
+
+ if (mp->m_quotainfo) {
+ uip = mp->m_quotainfo->qi_uquotaip;
+ gip = mp->m_quotainfo->qi_gquotaip;
+ }
+ if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
+ if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
+ 0, 0, &uip, 0) == 0)
+ tempuqip = B_TRUE;
+ }
+ if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) {
+ if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
+ 0, 0, &gip, 0) == 0)
+ tempgqip = 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 (gip) {
+ out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks;
+ out->qs_gquota.qfs_nextents = gip->i_d.di_nextents;
+ if (tempgqip)
+ VN_RELE(XFS_ITOV(gip));
+ }
+ if (mp->m_quotainfo) {
+ out->qs_incoredqs = XFS_QI_MPLNDQUOTS(mp);
+ out->qs_btimelimit = XFS_QI_BTIMELIMIT(mp);
+ out->qs_itimelimit = XFS_QI_ITIMELIMIT(mp);
+ out->qs_rtbtimelimit = XFS_QI_RTBTIMELIMIT(mp);
+ out->qs_bwarnlimit = XFS_QI_BWARNLIMIT(mp);
+ out->qs_iwarnlimit = XFS_QI_IWARNLIMIT(mp);
+ }
+ 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,
+ fs_disk_quota_t *newlim)
+{
+ xfs_disk_dquot_t *ddq;
+ xfs_dquot_t *dqp;
+ xfs_trans_t *tp;
+ int error;
+ xfs_qcnt_t hard, soft;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return XFS_ERROR(EPERM);
+
+ if ((newlim->d_fieldmask & (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_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(&(XFS_QI_QOFFLOCK(mp)), 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_ABORT);
+ mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+ ASSERT(error != ENOENT);
+ 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.
+ */
+ hard = (newlim->d_fieldmask & FS_DQ_BHARD) ?
+ (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) :
+ INT_GET(ddq->d_blk_hardlimit, ARCH_CONVERT);
+ soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ?
+ (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) :
+ INT_GET(ddq->d_blk_softlimit, ARCH_CONVERT);
+ if (hard == 0 || hard >= soft) {
+ INT_SET(ddq->d_blk_hardlimit, ARCH_CONVERT, hard);
+ INT_SET(ddq->d_blk_softlimit, ARCH_CONVERT, soft);
+ if (id == 0) {
+ mp->m_quotainfo->qi_bhardlimit = hard;
+ mp->m_quotainfo->qi_bsoftlimit = soft;
+ }
+ } else {
+ qdprintk("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) :
+ INT_GET(ddq->d_rtb_hardlimit, ARCH_CONVERT);
+ soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ?
+ (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) :
+ INT_GET(ddq->d_rtb_softlimit, ARCH_CONVERT);
+ if (hard == 0 || hard >= soft) {
+ INT_SET(ddq->d_rtb_hardlimit, ARCH_CONVERT, hard);
+ INT_SET(ddq->d_rtb_softlimit, ARCH_CONVERT, soft);
+ if (id == 0) {
+ mp->m_quotainfo->qi_rtbhardlimit = hard;
+ mp->m_quotainfo->qi_rtbsoftlimit = soft;
+ }
+ } else {
+ qdprintk("rtbhard %Ld < rtbsoft %Ld\n", hard, soft);
+ }
+
+ hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
+ (xfs_qcnt_t) newlim->d_ino_hardlimit :
+ INT_GET(ddq->d_ino_hardlimit, ARCH_CONVERT);
+ soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ?
+ (xfs_qcnt_t) newlim->d_ino_softlimit :
+ INT_GET(ddq->d_ino_softlimit, ARCH_CONVERT);
+ if (hard == 0 || hard >= soft) {
+ INT_SET(ddq->d_ino_hardlimit, ARCH_CONVERT, hard);
+ INT_SET(ddq->d_ino_softlimit, ARCH_CONVERT, soft);
+ if (id == 0) {
+ mp->m_quotainfo->qi_ihardlimit = hard;
+ mp->m_quotainfo->qi_isoftlimit = soft;
+ }
+ } else {
+ qdprintk("ihard %Ld < isoft %Ld\n", hard, soft);
+ }
+
+ 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).
+ */
+ if (newlim->d_fieldmask & FS_DQ_BTIMER) {
+ mp->m_quotainfo->qi_btimelimit = newlim->d_btimer;
+ INT_SET(ddq->d_btimer, ARCH_CONVERT, newlim->d_btimer);
+ }
+ if (newlim->d_fieldmask & FS_DQ_ITIMER) {
+ mp->m_quotainfo->qi_itimelimit = newlim->d_itimer;
+ INT_SET(ddq->d_itimer, ARCH_CONVERT, newlim->d_itimer);
+ }
+ if (newlim->d_fieldmask & FS_DQ_RTBTIMER) {
+ mp->m_quotainfo->qi_rtbtimelimit = newlim->d_rtbtimer;
+ INT_SET(ddq->d_rtbtimer, ARCH_CONVERT, newlim->d_rtbtimer);
+ }
+ } else /* if (XFS_IS_QUOTA_ENFORCED(mp)) */ {
+ /*
+ * 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);
+
+ xfs_dqtrace_entry(dqp, "Q_SETQLIM: COMMIT");
+ xfs_trans_commit(tp, 0, NULL);
+ xfs_qm_dqprint(dqp);
+ xfs_qm_dqrele(dqp);
+ mutex_unlock(&(XFS_QI_QOFFLOCK(mp)));
+
+ return (0);
+}
+
+STATIC int
+xfs_qm_scall_getquota(
+ xfs_mount_t *mp,
+ xfs_dqid_t id,
+ uint type,
+ fs_disk_quota_t *out)
+{
+ xfs_dquot_t *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.
+ */
+ if ((error = xfs_qm_dqget(mp, NULL, id, type, 0, &dqp))) {
+ 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 XFS_ERROR(ENOENT);
+ }
+ /* xfs_qm_dqprint(dqp); */
+ /*
+ * Convert the disk dquot to the exportable format
+ */
+ xfs_qm_export_dquot(mp, &dqp->q_core, out);
+ xfs_qm_dqput(dqp);
+ return (error ? XFS_ERROR(EFAULT) : 0);
+}
+
+
+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);
+
+ if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_qoff_logitem_t) * 2,
+ 0, 0, XFS_DEFAULT_LOG_COUNT))) {
+ xfs_trans_cancel(tp, 0);
+ return (error);
+ }
+
+ 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, NULL);
+ 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;
+ unsigned long s;
+ xfs_qoff_logitem_t *qoffi=NULL;
+ uint oldsbqflag=0;
+
+ 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_qflags & ~(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, NULL);
+
+error0:
+ if (error) {
+ xfs_trans_cancel(tp, 0);
+ /*
+ * 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.
+ * 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(INT_GET(src->d_flags, ARCH_CONVERT));
+ dst->d_id = INT_GET(src->d_id, ARCH_CONVERT);
+ dst->d_blk_hardlimit = (__uint64_t)
+ XFS_FSB_TO_BB(mp, INT_GET(src->d_blk_hardlimit, ARCH_CONVERT));
+ dst->d_blk_softlimit = (__uint64_t)
+ XFS_FSB_TO_BB(mp, INT_GET(src->d_blk_softlimit, ARCH_CONVERT));
+ dst->d_ino_hardlimit = (__uint64_t)
+ INT_GET(src->d_ino_hardlimit, ARCH_CONVERT);
+ dst->d_ino_softlimit = (__uint64_t)
+ INT_GET(src->d_ino_softlimit, ARCH_CONVERT);
+ dst->d_bcount = (__uint64_t)
+ XFS_FSB_TO_BB(mp, INT_GET(src->d_bcount, ARCH_CONVERT));
+ dst->d_icount = (__uint64_t) INT_GET(src->d_icount, ARCH_CONVERT);
+ dst->d_btimer = (__uint32_t) INT_GET(src->d_btimer, ARCH_CONVERT);
+ dst->d_itimer = (__uint32_t) INT_GET(src->d_itimer, ARCH_CONVERT);
+ dst->d_iwarns = INT_GET(src->d_iwarns, ARCH_CONVERT);
+ dst->d_bwarns = INT_GET(src->d_bwarns, ARCH_CONVERT);
+
+ dst->d_rtb_hardlimit = (__uint64_t)
+ XFS_FSB_TO_BB(mp, INT_GET(src->d_rtb_hardlimit, ARCH_CONVERT));
+ dst->d_rtb_softlimit = (__uint64_t)
+ XFS_FSB_TO_BB(mp, INT_GET(src->d_rtb_softlimit, ARCH_CONVERT));
+ dst->d_rtbcount = (__uint64_t)
+ XFS_FSB_TO_BB(mp, INT_GET(src->d_rtbcount, ARCH_CONVERT));
+ dst->d_rtbtimer = (__uint32_t) INT_GET(src->d_rtbtimer, ARCH_CONVERT);
+ dst->d_rtbwarns = INT_GET(src->d_rtbwarns, ARCH_CONVERT);
+
+ /*
+ * 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 DEBUG
+ 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 uflags)
+{
+ /*
+ * Can't be both at the same time.
+ */
+ if (((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ==
+ (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) ||
+ ((uflags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) == 0))
+ return (0);
+
+ return (uflags & XFS_USER_QUOTA) ?
+ XFS_DQ_USER : XFS_DQ_GROUP;
+}
+
+STATIC uint
+xfs_qm_export_qtype_flags(
+ uint flags)
+{
+ /*
+ * Can't be both at the same time.
+ */
+ ASSERT((flags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) !=
+ (XFS_GROUP_QUOTA | XFS_USER_QUOTA));
+ ASSERT((flags & (XFS_GROUP_QUOTA | XFS_USER_QUOTA)) != 0);
+
+ return (flags & XFS_DQ_USER) ?
+ XFS_USER_QUOTA : XFS_GROUP_QUOTA;
+}
+
+STATIC uint
+xfs_qm_import_flags(
+ uint uflags)
+{
+ uint flags = 0;
+
+ if (uflags & XFS_QUOTA_UDQ_ACCT)
+ flags |= XFS_UQUOTA_ACCT;
+ if (uflags & XFS_QUOTA_GDQ_ACCT)
+ flags |= XFS_GQUOTA_ACCT;
+ if (uflags & XFS_QUOTA_UDQ_ENFD)
+ flags |= XFS_UQUOTA_ENFD;
+ if (uflags & XFS_QUOTA_GDQ_ENFD)
+ flags |= XFS_GQUOTA_ENFD;
+ return (flags);
+}
+
+
+STATIC uint
+xfs_qm_export_flags(
+ uint flags)
+{
+ uint uflags;
+
+ uflags = 0;
+ if (flags & XFS_UQUOTA_ACCT)
+ uflags |= XFS_QUOTA_UDQ_ACCT;
+ if (flags & XFS_GQUOTA_ACCT)
+ uflags |= XFS_QUOTA_GDQ_ACCT;
+ if (flags & XFS_UQUOTA_ENFD)
+ uflags |= XFS_QUOTA_UDQ_ENFD;
+ if (flags & XFS_GQUOTA_ENFD)
+ uflags |= XFS_QUOTA_GDQ_ENFD;
+ return (uflags);
+}
+
+
+/*
+ * Go thru all the inodes in the file system, releasing their dquots.
+ * Note that the mount structure gets modified to indicate that quotas are off
+ * AFTER this, in the case of quotaoff. This also gets called from
+ * xfs_rootumount.
+ */
+void
+xfs_qm_dqrele_all_inodes(
+ struct xfs_mount *mp,
+ uint flags)
+{
+ vmap_t vmap;
+ xfs_inode_t *ip, *topino;
+ uint ireclaims;
+ vnode_t *vp;
+ boolean_t vnode_refd;
+
+ ASSERT(mp->m_quotainfo);
+
+again:
+ XFS_MOUNT_ILOCK(mp);
+ ip = mp->m_inodes;
+ if (ip == NULL) {
+ XFS_MOUNT_IUNLOCK(mp);
+ return;
+ }
+ do {
+ /* Skip markers inserted by xfs_sync */
+ if (ip->i_mount == NULL) {
+ ip = ip->i_mnext;
+ continue;
+ }
+ /* Root inode, rbmip and rsumip have associated blocks */
+ if (ip == XFS_QI_UQIP(mp) || ip == XFS_QI_GQIP(mp)) {
+ ASSERT(ip->i_udquot == NULL);
+ ASSERT(ip->i_gdquot == NULL);
+ ip = ip->i_mnext;
+ continue;
+ }
+ vp = XFS_ITOV_NULL(ip);
+ if (!vp) {
+ ASSERT(ip->i_udquot == NULL);
+ ASSERT(ip->i_gdquot == NULL);
+ ip = ip->i_mnext;
+ continue;
+ }
+ vnode_refd = B_FALSE;
+ 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;
+ topino = mp->m_inodes;
+ XFS_MOUNT_IUNLOCK(mp);
+
+ /* XXX restart limit ? */
+ if ( ! (vp = vn_get(vp, &vmap)))
+ goto again;
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+ vnode_refd = B_TRUE;
+ } else {
+ ireclaims = mp->m_ireclaims;
+ topino = mp->m_inodes;
+ XFS_MOUNT_IUNLOCK(mp);
+ }
+
+ /*
+ * We don't keep the mountlock across the dqrele() call,
+ * since it can take a while..
+ */
+ if ((flags & XFS_UQUOTA_ACCT) && ip->i_udquot) {
+ xfs_qm_dqrele(ip->i_udquot);
+ ip->i_udquot = NULL;
+ }
+ if ((flags & XFS_GQUOTA_ACCT) && ip->i_gdquot) {
+ xfs_qm_dqrele(ip->i_gdquot);
+ ip->i_gdquot = NULL;
+ }
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ /*
+ * Wait until we've dropped the ilock and mountlock to
+ * do the vn_rele. Or be condemned to an eternity in the
+ * inactive code in hell.
+ */
+ if (vnode_refd)
+ VN_RELE(vp);
+ XFS_MOUNT_ILOCK(mp);
+ /*
+ * If an inode was inserted or removed, we gotta
+ * start over again.
+ */
+ if (topino != mp->m_inodes || mp->m_ireclaims != ireclaims) {
+ /* XXX use a sentinel */
+ XFS_MOUNT_IUNLOCK(mp);
+ goto again;
+ }
+ ip = ip->i_mnext;
+ } while (ip != mp->m_inodes);
+
+ XFS_MOUNT_IUNLOCK(mp);
+}
+
+/*------------------------------------------------------------------------*/
+#ifdef DEBUG
+/*
+ * This contains all the test functions for XFS disk quotas.
+ * Currently it does a 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_gdqtab;
+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_gdqtab + \
+ DQTEST_HASHVAL(mp, id)))
+
+#define DQTEST_LIST_PRINT(l, NXT, title) \
+{ \
+ xfs_dqtest_t *dqp; int i = 0;\
+ cmn_err(CE_DEBUG, "%s (#%d)", title, (int) (l)->qh_nelems); \
+ for (dqp = (xfs_dqtest_t *)(l)->qh_next; dqp != NULL; \
+ dqp = (xfs_dqtest_t *)dqp->NXT) { \
+ cmn_err(CE_DEBUG, " %d. \"%d (%s)\" bcnt = %d, icnt = %d", \
+ ++i, dqp->d_id, DQFLAGTO_TYPESTR(dqp), \
+ dqp->d_bcount, dqp->d_icount); } \
+}
+
+typedef struct dqtest {
+ xfs_dqmarker_t q_lists;
+ xfs_dqhash_t *q_hash; /* the hashchain header */
+ xfs_mount_t *q_mount; /* filesystem this relates to */
+ xfs_dqid_t d_id; /* user id or group 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)
+{
+ cmn_err(CE_DEBUG, "-----------DQTEST DQUOT----------------");
+ cmn_err(CE_DEBUG, "---- dquot ID = %d", d->d_id);
+ cmn_err(CE_DEBUG, "---- type = %s", XFS_QM_ISUDQ(d)? "USR" : "GRP");
+ cmn_err(CE_DEBUG, "---- fs = 0x%p", d->q_mount);
+ cmn_err(CE_DEBUG, "---- bcount = %Lu (0x%x)",
+ d->d_bcount, (int)d->d_bcount);
+ cmn_err(CE_DEBUG, "---- icount = %Lu (0x%x)",
+ d->d_icount, (int)d->d_icount);
+ cmn_err(CE_DEBUG, "---------------------------");
+}
+
+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)
+ cmn_err(CE_DEBUG, "quotacheck failed id=%d, err=%d\nreason: %s",
+ INT_GET(d->d_id, ARCH_CONVERT), error, reason);
+ else
+ cmn_err(CE_DEBUG, "quotacheck failed id=%d (%s) [%d != %d]",
+ INT_GET(d->d_id, ARCH_CONVERT), 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 (INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) != d->d_icount) {
+ xfs_qm_dqtest_failed(d, dqp, "icount mismatch",
+ INT_GET(dqp->q_core.d_icount, ARCH_CONVERT),
+ d->d_icount, 0);
+ err++;
+ }
+ if (INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT) != d->d_bcount) {
+ xfs_qm_dqtest_failed(d, dqp, "bcount mismatch",
+ INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT),
+ d->d_bcount, 0);
+ err++;
+ }
+ if (INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT) &&
+ INT_GET(dqp->q_core.d_bcount, ARCH_CONVERT) >=
+ INT_GET(dqp->q_core.d_blk_softlimit, ARCH_CONVERT)) {
+ if (!dqp->q_core.d_btimer && dqp->q_core.d_id) {
+ cmn_err(CE_DEBUG,
+ "%d [%s] [0x%p] BLK TIMER NOT STARTED",
+ d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount);
+ err++;
+ }
+ }
+ if (INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT) &&
+ INT_GET(dqp->q_core.d_icount, ARCH_CONVERT) >=
+ INT_GET(dqp->q_core.d_ino_softlimit, ARCH_CONVERT)) {
+ if (!dqp->q_core.d_itimer && dqp->q_core.d_id) {
+ cmn_err(CE_DEBUG,
+ "%d [%s] [0x%p] INO TIMER NOT STARTED",
+ d->d_id, DQFLAGTO_TYPESTR(d), d->q_mount);
+ err++;
+ }
+ }
+#ifdef QUOTADEBUG
+ if (!err) {
+ cmn_err(CE_DEBUG, "%d [%s] [0x%p] qchecked",
+ d->d_id, XFS_QM_ISUDQ(d) ? "USR" : "GRP", d->q_mount);
+ }
+#endif
+ 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;
+ d->q_hash = h;
+ xfs_qm_hashinsert(h, d);
+ *O_dq = d;
+ return (0);
+}
+
+STATIC void
+xfs_qm_internalqcheck_get_dquots(
+ xfs_mount_t *mp,
+ xfs_dqid_t uid,
+ xfs_dqid_t gid,
+ xfs_dqtest_t **ud,
+ xfs_dqtest_t **gd)
+{
+ if (XFS_IS_UQUOTA_ON(mp))
+ xfs_qm_internalqcheck_dqget(mp, uid, XFS_DQ_USER, ud);
+ if (XFS_IS_GQUOTA_ON(mp))
+ xfs_qm_internalqcheck_dqget(mp, gid, XFS_DQ_GROUP, gd);
+}
+
+
+STATIC void
+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;
+}
+
+STATIC int
+xfs_qm_internalqcheck_adjust(
+ xfs_mount_t *mp, /* mount point for filesystem */
+ xfs_ino_t ino, /* inode number to get data for */
+ void __user *buffer, /* not used */
+ int ubsize, /* not used */
+ void *private_data, /* not used */
+ xfs_daddr_t bno, /* starting block of inode cluster */
+ int *ubused, /* not used */
+ void *dip, /* not used */
+ int *res) /* bulkstat result code */
+{
+ xfs_inode_t *ip;
+ xfs_dqtest_t *ud, *gd;
+ uint lock_flags;
+ boolean_t ipreleased;
+ int error;
+
+ ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
+ if (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino) {
+ *res = BULKSTAT_RV_NOTHING;
+ qdprintk("internalqcheck: ino=%llu, uqino=%llu, gqino=%llu\n",
+ (unsigned long long) ino,
+ (unsigned long long) mp->m_sb.sb_uquotino,
+ (unsigned long long) mp->m_sb.sb_gquotino);
+ return XFS_ERROR(EINVAL);
+ }
+ ipreleased = B_FALSE;
+ again:
+ lock_flags = XFS_ILOCK_SHARED;
+ if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) {
+ *res = BULKSTAT_RV_NOTHING;
+ return (error);
+ }
+
+ if (ip->i_d.di_mode == 0) {
+ xfs_iput_new(ip, lock_flags);
+ *res = BULKSTAT_RV_NOTHING;
+ return XFS_ERROR(ENOENT);
+ }
+
+ /*
+ * 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;
+ }
+ xfs_qm_internalqcheck_get_dquots(mp,
+ (xfs_dqid_t) ip->i_d.di_uid,
+ (xfs_dqid_t) ip->i_d.di_gid,
+ &ud, &gd);
+ if (XFS_IS_UQUOTA_ON(mp)) {
+ ASSERT(ud);
+ xfs_qm_internalqcheck_dqadjust(ip, ud);
+ }
+ if (XFS_IS_GQUOTA_ON(mp)) {
+ ASSERT(gd);
+ xfs_qm_internalqcheck_dqadjust(ip, gd);
+ }
+ xfs_iput(ip, lock_flags);
+ *res = BULKSTAT_RV_DIDONE;
+ return (0);
+}
+
+
+/* PRIVATE, debugging */
+int
+xfs_qm_internalqcheck(
+ xfs_mount_t *mp)
+{
+ xfs_ino_t lastino;
+ int done, count;
+ int i;
+ xfs_dqtest_t *d, *e;
+ xfs_dqhash_t *h1;
+ int error;
+
+ lastino = 0;
+ qmtest_hashmask = 32;
+ count = 5;
+ done = 0;
+ qmtest_nfails = 0;
+
+ if (! XFS_IS_QUOTA_ON(mp))
+ return XFS_ERROR(ESRCH);
+
+ xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
+ XFS_bflush(mp->m_ddev_targp);
+ xfs_log_force(mp, (xfs_lsn_t)0, XFS_LOG_FORCE | XFS_LOG_SYNC);
+ XFS_bflush(mp->m_ddev_targp);
+
+ 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_gdqtab = 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 ((error = xfs_bulkstat(mp, &lastino, &count,
+ xfs_qm_internalqcheck_adjust, NULL,
+ 0, NULL, BULKSTAT_FG_IGET, &done))) {
+ break;
+ }
+ } while (! done);
+ if (error) {
+ cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error);
+ }
+ cmn_err(CE_DEBUG, "Checking results against system dquots");
+ 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_gdqtab[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) {
+ cmn_err(CE_DEBUG, "******** quotacheck failed ********");
+ cmn_err(CE_DEBUG, "failures = %d", qmtest_nfails);
+ } else {
+ cmn_err(CE_DEBUG, "******** quotacheck successful! ********");
+ }
+ kmem_free(qmtest_udqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
+ kmem_free(qmtest_gdqtab, qmtest_hashmask * sizeof(xfs_dqhash_t));
+ mutex_unlock(&qcheck_lock);
+ return (qmtest_nfails);
+}
+
+#endif /* DEBUG */