/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2006 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
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms 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.
+ * 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. See the
+ * GNU General Public License for more details.
*
- * 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/
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-
#include "xfs.h"
#include "xfs_fs.h"
-#include "xfs_inum.h"
+#include "xfs_bit.h"
#include "xfs_log.h"
-#include "xfs_clnt.h"
+#include "xfs_inum.h"
#include "xfs_trans.h"
#include "xfs_sb.h"
-#include "xfs_dir.h"
+#include "xfs_ag.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_alloc_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_attr_sf.h"
#include "xfs_dinode.h"
#include "xfs_inode.h"
+#include "xfs_ialloc.h"
+#include "xfs_itable.h"
+#include "xfs_btree.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_qm.h"
-#define MNTOPT_QUOTA "quota" /* disk quotas (user) */
-#define MNTOPT_NOQUOTA "noquota" /* no quotas */
-#define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */
-#define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */
-#define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */
-#define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */
-#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
-#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
-#define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */
-
-STATIC int
-xfs_qm_parseargs(
- struct bhv_desc *bhv,
- char *options,
- struct xfs_mount_args *args,
- int update)
-{
- size_t length;
- char *local_options = options;
- char *this_char;
- int error;
- int referenced = update;
-
- while ((this_char = strsep(&local_options, ",")) != NULL) {
- length = strlen(this_char);
- if (local_options)
- length++;
- if (!strcmp(this_char, MNTOPT_NOQUOTA)) {
- args->flags &= ~(XFSMNT_UQUOTAENF|XFSMNT_UQUOTA);
- args->flags &= ~(XFSMNT_GQUOTAENF|XFSMNT_GQUOTA);
- referenced = update;
- } else if (!strcmp(this_char, MNTOPT_QUOTA) ||
- !strcmp(this_char, MNTOPT_UQUOTA) ||
- !strcmp(this_char, MNTOPT_USRQUOTA)) {
- args->flags |= XFSMNT_UQUOTA | XFSMNT_UQUOTAENF;
- referenced = 1;
- } else if (!strcmp(this_char, MNTOPT_QUOTANOENF) ||
- !strcmp(this_char, MNTOPT_UQUOTANOENF)) {
- args->flags |= XFSMNT_UQUOTA;
- args->flags &= ~XFSMNT_UQUOTAENF;
- referenced = 1;
- } else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
- !strcmp(this_char, MNTOPT_GRPQUOTA)) {
- args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
- referenced = 1;
- } else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
- args->flags |= XFSMNT_GQUOTA;
- args->flags &= ~XFSMNT_GQUOTAENF;
- referenced = 1;
- } else {
- if (local_options)
- *(local_options-1) = ',';
- continue;
- }
-
- while (length--)
- *this_char++ = ',';
- }
-
- PVFS_PARSEARGS(BHV_NEXT(bhv), options, args, update, error);
- if (!error && !referenced)
- bhv_remove_vfsops(bhvtovfs(bhv), VFS_POSITION_QM);
- return error;
-}
-
-STATIC int
-xfs_qm_showargs(
- struct bhv_desc *bhv,
- struct seq_file *m)
+STATIC void
+xfs_fill_statvfs_from_dquot(
+ struct kstatfs *statp,
+ xfs_disk_dquot_t *dp)
{
- struct vfs *vfsp = bhvtovfs(bhv);
- struct xfs_mount *mp = XFS_VFSTOM(vfsp);
- int error;
-
- if (mp->m_qflags & XFS_UQUOTA_ACCT) {
- (mp->m_qflags & XFS_UQUOTA_ENFD) ?
- seq_puts(m, "," MNTOPT_USRQUOTA) :
- seq_puts(m, "," MNTOPT_UQUOTANOENF);
+ __uint64_t limit;
+
+ limit = dp->d_blk_softlimit ?
+ be64_to_cpu(dp->d_blk_softlimit) :
+ be64_to_cpu(dp->d_blk_hardlimit);
+ if (limit && statp->f_blocks > limit) {
+ statp->f_blocks = limit;
+ statp->f_bfree =
+ (statp->f_blocks > be64_to_cpu(dp->d_bcount)) ?
+ (statp->f_blocks - be64_to_cpu(dp->d_bcount)) : 0;
}
- if (mp->m_qflags & XFS_GQUOTA_ACCT) {
- (mp->m_qflags & XFS_GQUOTA_ENFD) ?
- seq_puts(m, "," MNTOPT_GRPQUOTA) :
- seq_puts(m, "," MNTOPT_GQUOTANOENF);
+ limit = dp->d_ino_softlimit ?
+ be64_to_cpu(dp->d_ino_softlimit) :
+ be64_to_cpu(dp->d_ino_hardlimit);
+ if (limit && statp->f_files > limit) {
+ statp->f_files = limit;
+ statp->f_ffree =
+ (statp->f_files > be64_to_cpu(dp->d_icount)) ?
+ (statp->f_ffree - be64_to_cpu(dp->d_icount)) : 0;
}
-
- if (!(mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT)))
- seq_puts(m, "," MNTOPT_NOQUOTA);
-
- PVFS_SHOWARGS(BHV_NEXT(bhv), m, error);
- return error;
}
-STATIC int
-xfs_qm_mount(
- struct bhv_desc *bhv,
- struct xfs_mount_args *args,
- struct cred *cr)
-{
- struct vfs *vfsp = bhvtovfs(bhv);
- struct xfs_mount *mp = XFS_VFSTOM(vfsp);
- int error;
-
- if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA))
- xfs_qm_mount_quotainit(mp, args->flags);
- PVFS_MOUNT(BHV_NEXT(bhv), args, cr, error);
- return error;
-}
-
-STATIC int
-xfs_qm_syncall(
- struct bhv_desc *bhv,
- int flags,
- cred_t *credp)
-{
- struct vfs *vfsp = bhvtovfs(bhv);
- struct xfs_mount *mp = XFS_VFSTOM(vfsp);
- int error;
-
- /*
- * Get the Quota Manager to flush the dquots.
- */
- if (XFS_IS_QUOTA_ON(mp)) {
- if ((error = xfs_qm_sync(mp, flags))) {
- /*
- * If we got an IO error, we will be shutting down.
- * So, there's nothing more for us to do here.
- */
- ASSERT(error != EIO || XFS_FORCED_SHUTDOWN(mp));
- if (XFS_FORCED_SHUTDOWN(mp)) {
- return XFS_ERROR(error);
- }
- }
- }
- PVFS_SYNC(BHV_NEXT(bhv), flags, credp, error);
- return error;
-}
/*
- * Clear the quotaflags in memory and in the superblock.
+ * Directory tree accounting is implemented using project quotas, where
+ * the project identifier is inherited from parent directories.
+ * A statvfs (df, etc.) of a directory that is using project quota should
+ * return a statvfs of the project, not the entire filesystem.
+ * This makes such trees appear as if they are filesystems in themselves.
*/
-void
-xfs_mount_reset_sbqflags(
- xfs_mount_t *mp)
+STATIC void
+xfs_qm_statvfs(
+ xfs_inode_t *ip,
+ struct kstatfs *statp)
{
- xfs_trans_t *tp;
- unsigned long s;
+ xfs_mount_t *mp = ip->i_mount;
+ xfs_dquot_t *dqp;
- mp->m_qflags = 0;
- /*
- * It is OK to look at sb_qflags here in mount path,
- * without SB_LOCK.
- */
- if (mp->m_sb.sb_qflags == 0)
+ if (!(ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) ||
+ !((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))) ==
+ (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))
return;
- s = XFS_SB_LOCK(mp);
- mp->m_sb.sb_qflags = 0;
- XFS_SB_UNLOCK(mp, s);
- /*
- * if the fs is readonly, let the incore superblock run
- * with quotas off but don't flush the update out to disk
- */
- if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
- return;
-#ifdef QUOTADEBUG
- xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes");
-#endif
- tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
- if (xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
- XFS_DEFAULT_LOG_COUNT)) {
- xfs_trans_cancel(tp, 0);
- xfs_fs_cmn_err(CE_ALERT, mp,
- "xfs_mount_reset_sbqflags: Superblock update failed!");
- return;
+ if (!xfs_qm_dqget(mp, NULL, ip->i_d.di_projid, XFS_DQ_PROJ, 0, &dqp)) {
+ xfs_disk_dquot_t *dp = &dqp->q_core;
+
+ xfs_fill_statvfs_from_dquot(statp, dp);
+ xfs_qm_dqput(dqp);
}
- xfs_mod_sb(tp, XFS_SB_QFLAGS);
- xfs_trans_commit(tp, 0, NULL);
}
STATIC int
uint *quotaflags)
{
uint quotaondisk;
- uint uquotaondisk = 0, gquotaondisk = 0;
+ uint uquotaondisk = 0, gquotaondisk = 0, pquotaondisk = 0;
*quotaflags = 0;
*needquotamount = B_FALSE;
- quotaondisk = XFS_SB_VERSION_HASQUOTA(&mp->m_sb) &&
- mp->m_sb.sb_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT);
+ quotaondisk = xfs_sb_version_hasquota(&mp->m_sb) &&
+ (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT);
if (quotaondisk) {
uquotaondisk = mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT;
+ pquotaondisk = mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT;
gquotaondisk = mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT;
}
if (((uquotaondisk && !XFS_IS_UQUOTA_ON(mp)) ||
(!uquotaondisk && XFS_IS_UQUOTA_ON(mp)) ||
+ (pquotaondisk && !XFS_IS_PQUOTA_ON(mp)) ||
+ (!pquotaondisk && XFS_IS_PQUOTA_ON(mp)) ||
(gquotaondisk && !XFS_IS_GQUOTA_ON(mp)) ||
- (!gquotaondisk && XFS_IS_GQUOTA_ON(mp))) &&
+ (!gquotaondisk && XFS_IS_OQUOTA_ON(mp))) &&
xfs_dev_is_read_only(mp, "changing quota state")) {
cmn_err(CE_WARN,
- "XFS: please mount with%s%s%s.",
+ "XFS: please mount with%s%s%s%s.",
(!quotaondisk ? "out quota" : ""),
(uquotaondisk ? " usrquota" : ""),
+ (pquotaondisk ? " prjquota" : ""),
(gquotaondisk ? " grpquota" : ""));
return XFS_ERROR(EPERM);
}
* mounting, and get on with the boring life
* without disk quotas.
*/
- xfs_qm_mount_quotas(mp, 0);
+ xfs_qm_mount_quotas(mp);
} else {
/*
* Clear the quota flags, but remember them. This
xfs_qm_endmount(
xfs_mount_t *mp,
uint needquotamount,
- uint quotaflags,
- int mfsi_flags)
+ uint quotaflags)
{
if (needquotamount) {
ASSERT(mp->m_qflags == 0);
mp->m_qflags = quotaflags;
- xfs_qm_mount_quotas(mp, mfsi_flags);
+ xfs_qm_mount_quotas(mp);
}
#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
}
-STATIC struct xfs_qmops xfs_qmcore_xfs = {
+struct xfs_qmops xfs_qmcore_xfs = {
.xfs_qminit = xfs_qm_newmount,
.xfs_qmdone = xfs_qm_unmount_quotadestroy,
.xfs_qmmount = xfs_qm_endmount,
.xfs_dqvoprename = xfs_qm_vop_rename_dqattach,
.xfs_dqvopchown = xfs_qm_vop_chown,
.xfs_dqvopchownresv = xfs_qm_vop_chown_reserve,
+ .xfs_dqstatvfs = xfs_qm_statvfs,
+ .xfs_dqsync = xfs_qm_sync,
+ .xfs_quotactl = xfs_qm_quotactl,
.xfs_dqtrxops = &xfs_trans_dquot_ops,
};
-
-struct bhv_vfsops xfs_qmops = { {
- BHV_IDENTITY_INIT(VFS_BHV_QM, VFS_POSITION_QM),
- .vfs_parseargs = xfs_qm_parseargs,
- .vfs_showargs = xfs_qm_showargs,
- .vfs_mount = xfs_qm_mount,
- .vfs_sync = xfs_qm_syncall,
- .vfs_quotactl = xfs_qm_quotactl, },
-};
-
+EXPORT_SYMBOL(xfs_qmcore_xfs);
void __init
xfs_qm_init(void)
{
- static char message[] __initdata =
- KERN_INFO "SGI XFS Quota Management subsystem\n";
-
- printk(message);
- mutex_init(&xfs_Gqm_lock, MUTEX_DEFAULT, "xfs_qmlock");
- vfs_bhv_set_custom(&xfs_qmops, &xfs_qmcore_xfs);
+ printk(KERN_INFO "SGI XFS Quota Management subsystem\n");
+ mutex_init(&xfs_Gqm_lock);
xfs_qm_init_procfs();
}
void __exit
xfs_qm_exit(void)
{
- vfs_bhv_clr_custom(&xfs_qmops);
xfs_qm_cleanup_procfs();
if (qm_dqzone)
- kmem_cache_destroy(qm_dqzone);
+ kmem_zone_destroy(qm_dqzone);
if (qm_dqtrxzone)
- kmem_cache_destroy(qm_dqtrxzone);
+ kmem_zone_destroy(qm_dqtrxzone);
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff