[PATCH v8 1/5] xfs: Remove incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD

Chandra Seetharaman
2013-05-10T21:21:43Z

Remove all incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD. Instead,
start using XFS_GQUOTA_.* XFS_PQUOTA_.* counterparts for GQUOTA and
PQUOTA respectively.

On-disk copy still uses XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD.

Read and write of the superblock does the conversion from *OQUOTA*
to *[PG]QUOTA*.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/xfs_mount.c | 41 +++++++++++++++++++++++++++++++++++++++++
fs/xfs/xfs_qm.c | 9 ++++++---
fs/xfs/xfs_qm_syscalls.c | 39 +++++++++++++++++++++------------------
fs/xfs/xfs_quota.h | 42 ++++++++++++++++++++++++++++--------------
fs/xfs/xfs_quotaops.c | 6 ++++--
fs/xfs/xfs_super.c | 16 ++++++++--------
fs/xfs/xfs_trans_dquot.c | 4 ++--
7 files changed, 110 insertions(+), 47 deletions(-)

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index f6bfbd7..1b79906 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -564,6 +564,8 @@ xfs_sb_from_disk(
struct xfs_sb *to,
xfs_dsb_t *from)
{
+ bool force_quota_check = false;
+
to->sb_magicnum = be32_to_cpu(from->sb_magicnum);
to->sb_blocksize = be32_to_cpu(from->sb_blocksize);
to->sb_dblocks = be64_to_cpu(from->sb_dblocks);
@@ -599,6 +601,21 @@ xfs_sb_from_disk(
to->sb_uquotino = be64_to_cpu(from->sb_uquotino);
to->sb_gquotino = be64_to_cpu(from->sb_gquotino);
to->sb_qflags = be16_to_cpu(from->sb_qflags);
+ if ((to->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) &&
+ (to->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD |
+ XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))) {
+ xfs_notice(NULL, "Super block has XFS_OQUOTA bits along with "
+ "XFS_PQUOTA and/or XFS_GQUOTA bits. Quota check forced.\n");
+ force_quota_check = true;
+ }
+ if (to->sb_qflags & XFS_OQUOTA_ENFD)
+ to->sb_qflags |= (to->sb_qflags & XFS_PQUOTA_ACCT) ?
+ XFS_PQUOTA_ENFD : XFS_GQUOTA_ENFD;
+ if (to->sb_qflags & XFS_OQUOTA_CHKD)
+ to->sb_qflags |= (to->sb_qflags & XFS_PQUOTA_ACCT) ?
+ XFS_PQUOTA_CHKD : XFS_GQUOTA_CHKD;
+ to->sb_qflags &= ~(XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD);
+
to->sb_flags = from->sb_flags;
to->sb_shared_vn = from->sb_shared_vn;
to->sb_inoalignmt = be32_to_cpu(from->sb_inoalignmt);
@@ -618,6 +635,9 @@ xfs_sb_from_disk(
to->sb_pad = 0;
to->sb_pquotino = be64_to_cpu(from->sb_pquotino);
to->sb_lsn = be64_to_cpu(from->sb_lsn);
+
+ if (force_quota_check)
+ to->sb_qflags &= ~(XFS_GQUOTA_CHKD | XFS_PQUOTA_CHKD);
}

/*
@@ -636,11 +656,30 @@ xfs_sb_to_disk(
xfs_sb_field_t f;
int first;
int size;
+ __uint16_t qflags = from->sb_qflags;

ASSERT(fields);
if (!fields)
return;

+ if (fields & XFS_SB_QFLAGS) {
+ /*
+ * The in-core version of sb_qflags do not have
+ * XFS_OQUOTA_* flags, whereas the on-disk version
+ * does. So, convert incore XFS_{PG}QUOTA_* flags
+ * to on-disk XFS_OQUOTA_* flags.
+ */
+ qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD |
+ XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD);
+
+ if (from->sb_qflags &
+ (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD))
+ qflags |= XFS_OQUOTA_ENFD;
+ if (from->sb_qflags &
+ (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))
+ qflags |= XFS_OQUOTA_CHKD;
+ }
+
while (fields) {
f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
first = xfs_sb_info[f].offset;
@@ -650,6 +689,8 @@ xfs_sb_to_disk(

if (size == 1 || xfs_sb_info[f].type == 1) {
memcpy(to_ptr + first, from_ptr + first, size);
+ } else if (f == XFS_SBS_QFLAGS) {
+ *(__be16 *)(to_ptr + first) = cpu_to_be16(qflags);
} else {
switch (size) {
case 2:
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index f41702b..fe4c743 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -298,8 +298,10 @@ xfs_qm_mount_quotas(
*/
if (!XFS_IS_UQUOTA_ON(mp))
mp->m_qflags &= ~XFS_UQUOTA_CHKD;
- if (!(XFS_IS_GQUOTA_ON(mp) || XFS_IS_PQUOTA_ON(mp)))
- mp->m_qflags &= ~XFS_OQUOTA_CHKD;
+ if (!XFS_IS_GQUOTA_ON(mp))
+ mp->m_qflags &= ~XFS_GQUOTA_CHKD;
+ if (!XFS_IS_PQUOTA_ON(mp))
+ mp->m_qflags &= ~XFS_PQUOTA_CHKD;

write_changes:
/*
@@ -1280,7 +1282,8 @@ xfs_qm_quotacheck(
&buffer_list);
if (error)
goto error_return;
- flags |= XFS_OQUOTA_CHKD;
+ flags |= XFS_IS_GQUOTA_ON(mp) ?
+ XFS_GQUOTA_CHKD : XFS_PQUOTA_CHKD;
}

do {
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index c41190c..f005f1d 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -117,11 +117,11 @@ xfs_qm_scall_quotaoff(
}
if (flags & XFS_GQUOTA_ACCT) {
dqtype |= XFS_QMOPT_GQUOTA;
- flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD);
+ flags |= (XFS_GQUOTA_CHKD | XFS_GQUOTA_ENFD);
inactivate_flags |= XFS_GQUOTA_ACTIVE;
} else if (flags & XFS_PQUOTA_ACCT) {
dqtype |= XFS_QMOPT_PQUOTA;
- flags |= (XFS_OQUOTA_CHKD | XFS_OQUOTA_ENFD);
+ flags |= (XFS_PQUOTA_CHKD | XFS_PQUOTA_ENFD);
inactivate_flags |= XFS_PQUOTA_ACTIVE;
}

@@ -335,14 +335,14 @@ xfs_qm_scall_quotaon(
* 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))
- ||
+ (mp->m_sb.sb_qflags & XFS_UQUOTA_ACCT) == 0 &&
+ (flags & XFS_UQUOTA_ENFD)) ||
((flags & XFS_PQUOTA_ACCT) == 0 &&
- (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
- (flags & XFS_GQUOTA_ACCT) == 0 &&
- (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
- (flags & XFS_OQUOTA_ENFD))) {
+ (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
+ (flags & XFS_PQUOTA_ENFD)) ||
+ ((flags & XFS_GQUOTA_ACCT) == 0 &&
+ (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
+ (flags & XFS_GQUOTA_ENFD))) {
xfs_debug(mp,
"%s: Can't enforce without acct, flags=%x sbflags=%x\n",
__func__, flags, mp->m_sb.sb_qflags);
@@ -770,9 +770,12 @@ xfs_qm_scall_getquota(
* gets turned off. No need to confuse the user level code,
* so return zeroes in that case.
*/
- if ((!XFS_IS_UQUOTA_ENFORCED(mp) && dqp->q_core.d_flags == XFS_DQ_USER) ||
- (!XFS_IS_OQUOTA_ENFORCED(mp) &&
- (dqp->q_core.d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) {
+ if ((!XFS_IS_UQUOTA_ENFORCED(mp) &&
+ dqp->q_core.d_flags == XFS_DQ_USER) ||
+ (!XFS_IS_PQUOTA_ENFORCED(mp) &&
+ dqp->q_core.d_flags == XFS_DQ_PROJ) ||
+ (!XFS_IS_GQUOTA_ENFORCED(mp) &&
+ dqp->q_core.d_flags == XFS_DQ_GROUP)) {
dst->d_btimer = 0;
dst->d_itimer = 0;
dst->d_rtbtimer = 0;
@@ -780,8 +783,8 @@ xfs_qm_scall_getquota(

#ifdef DEBUG
if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
- (XFS_IS_OQUOTA_ENFORCED(mp) &&
- (dst->d_flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)))) &&
+ (XFS_IS_PQUOTA_ENFORCED(mp) && dst->d_flags == FS_PROJ_QUOTA) ||
+ (XFS_IS_GQUOTA_ENFORCED(mp) && dst->d_flags == FS_GROUP_QUOTA)) &&
dst->d_id != 0) {
if ((dst->d_bcount > dst->d_blk_softlimit) &&
(dst->d_blk_softlimit > 0)) {
@@ -833,10 +836,10 @@ xfs_qm_export_flags(
uflags |= FS_QUOTA_GDQ_ACCT;
if (flags & XFS_UQUOTA_ENFD)
uflags |= FS_QUOTA_UDQ_ENFD;
- if (flags & (XFS_OQUOTA_ENFD)) {
- uflags |= (flags & XFS_GQUOTA_ACCT) ?
- FS_QUOTA_GDQ_ENFD : FS_QUOTA_PDQ_ENFD;
- }
+ if (flags & XFS_PQUOTA_ENFD)
+ uflags |= FS_QUOTA_PDQ_ENFD;
+ if (flags & XFS_GQUOTA_ENFD)
+ uflags |= FS_QUOTA_GDQ_ENFD;
return (uflags);
}

diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index c61e31c..ccff1a6 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -159,28 +159,43 @@ typedef struct xfs_qoff_logformat {
#define XFS_GQUOTA_ACCT 0x0040 /* group quota accounting ON */

/*
+ * Start differentiating group quota and project quota in-core
+ * using distinct flags, instead of using the combined OQUOTA flags.
+ *
+ * Conversion to and from the combined OQUOTA flag (if necessary)
+ * is done only in xfs_sb_{to,from}_disk()
+ */
+#define XFS_GQUOTA_ENFD 0x0080 /* group quota limits enforced */
+#define XFS_GQUOTA_CHKD 0x0100 /* quotacheck run on group quotas */
+#define XFS_PQUOTA_ENFD 0x0200 /* project quota limits enforced */
+#define XFS_PQUOTA_CHKD 0x0400 /* quotacheck run on project quotas */
+
+/*
* Quota Accounting/Enforcement flags
*/
#define XFS_ALL_QUOTA_ACCT \
(XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT)
-#define XFS_ALL_QUOTA_ENFD (XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD)
-#define XFS_ALL_QUOTA_CHKD (XFS_UQUOTA_CHKD | XFS_OQUOTA_CHKD)
+#define XFS_ALL_QUOTA_ENFD \
+ (XFS_UQUOTA_ENFD | XFS_GQUOTA_ENFD | XFS_PQUOTA_ENFD)
+#define XFS_ALL_QUOTA_CHKD \
+ (XFS_UQUOTA_CHKD | XFS_GQUOTA_CHKD | XFS_PQUOTA_CHKD)

#define XFS_IS_QUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
#define XFS_IS_UQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)
#define XFS_IS_PQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT)
#define XFS_IS_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
#define XFS_IS_UQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_UQUOTA_ENFD)
-#define XFS_IS_OQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_OQUOTA_ENFD)
+#define XFS_IS_PQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_PQUOTA_ENFD)
+#define XFS_IS_GQUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_GQUOTA_ENFD)

/*
* Incore only flags for quotaoff - these bits get cleared when quota(s)
* are in the process of getting turned off. These flags are in m_qflags but
* never in sb_qflags.
*/
-#define XFS_UQUOTA_ACTIVE 0x0100 /* uquotas are being turned off */
-#define XFS_PQUOTA_ACTIVE 0x0200 /* pquotas are being turned off */
-#define XFS_GQUOTA_ACTIVE 0x0400 /* gquotas are being turned off */
+#define XFS_UQUOTA_ACTIVE 0x1000 /* uquotas are being turned off */
+#define XFS_PQUOTA_ACTIVE 0x2000 /* pquotas are being turned off */
+#define XFS_GQUOTA_ACTIVE 0x4000 /* gquotas are being turned off */
#define XFS_ALL_QUOTA_ACTIVE \
(XFS_UQUOTA_ACTIVE | XFS_PQUOTA_ACTIVE | XFS_GQUOTA_ACTIVE)

@@ -266,24 +281,23 @@ typedef struct xfs_qoff_logformat {
((XFS_IS_UQUOTA_ON(mp) && \
(mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \
(XFS_IS_GQUOTA_ON(mp) && \
- ((mp->m_sb.sb_qflags & XFS_OQUOTA_CHKD) == 0 || \
- (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT))) || \
+ (mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \
(XFS_IS_PQUOTA_ON(mp) && \
- ((mp->m_sb.sb_qflags & XFS_OQUOTA_CHKD) == 0 || \
- (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT))))
+ (mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0))

#define XFS_MOUNT_QUOTA_SET1 (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
XFS_UQUOTA_CHKD|XFS_PQUOTA_ACCT|\
- XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD)
+ XFS_PQUOTA_ENFD|XFS_PQUOTA_CHKD)

#define XFS_MOUNT_QUOTA_SET2 (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\
- XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD)
+ XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD)

#define XFS_MOUNT_QUOTA_ALL (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
XFS_UQUOTA_CHKD|XFS_PQUOTA_ACCT|\
- XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD|\
- XFS_GQUOTA_ACCT)
+ XFS_PQUOTA_ENFD|XFS_PQUOTA_CHKD|\
+ XFS_GQUOTA_ACCT|XFS_GQUOTA_ENFD|\
+ XFS_GQUOTA_CHKD)

/*
diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c
index 71926d6..056d62e 100644
--- a/fs/xfs/xfs_quotaops.c
+++ b/fs/xfs/xfs_quotaops.c
@@ -75,8 +75,10 @@ xfs_fs_set_xstate(
flags |= XFS_GQUOTA_ACCT;
if (uflags & FS_QUOTA_UDQ_ENFD)
flags |= XFS_UQUOTA_ENFD;
- if (uflags & (FS_QUOTA_PDQ_ENFD|FS_QUOTA_GDQ_ENFD))
- flags |= XFS_OQUOTA_ENFD;
+ if (uflags & FS_QUOTA_PDQ_ENFD)
+ flags |= XFS_PQUOTA_ENFD;
+ if (uflags & FS_QUOTA_GDQ_ENFD)
+ flags |= XFS_GQUOTA_ENFD;

switch (op) {
case Q_XQUOTAON:
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index ea341ce..873fa5a 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -359,17 +359,17 @@ xfs_parseargs(
} else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
!strcmp(this_char, MNTOPT_PRJQUOTA)) {
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE |
- XFS_OQUOTA_ENFD);
+ XFS_PQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
mp->m_qflags |= (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE);
- mp->m_qflags &= ~XFS_OQUOTA_ENFD;
+ mp->m_qflags &= ~XFS_PQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
!strcmp(this_char, MNTOPT_GRPQUOTA)) {
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE |
- XFS_OQUOTA_ENFD);
+ XFS_GQUOTA_ENFD);
} else if (!strcmp(this_char, MNTOPT_GQUOTANOENF)) {
mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
- mp->m_qflags &= ~XFS_OQUOTA_ENFD;
+ mp->m_qflags &= ~XFS_GQUOTA_ENFD;
} else if (!strcmp(this_char, MNTOPT_DELAYLOG)) {
xfs_warn(mp,
"delaylog is the default now, option is deprecated.");
@@ -563,12 +563,12 @@ xfs_showargs(
/* Either project or group quotas can be active, not both */

if (mp->m_qflags & XFS_PQUOTA_ACCT) {
- if (mp->m_qflags & XFS_OQUOTA_ENFD)
+ if (mp->m_qflags & XFS_PQUOTA_ENFD)
seq_puts(m, "," MNTOPT_PRJQUOTA);
else
seq_puts(m, "," MNTOPT_PQUOTANOENF);
} else if (mp->m_qflags & XFS_GQUOTA_ACCT) {
- if (mp->m_qflags & XFS_OQUOTA_ENFD)
+ if (mp->m_qflags & XFS_GQUOTA_ENFD)
seq_puts(m, "," MNTOPT_GRPQUOTA);
else
seq_puts(m, "," MNTOPT_GQUOTANOENF);
@@ -1136,8 +1136,8 @@ xfs_fs_statfs(
spin_unlock(&mp->m_sb_lock);

if ((ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT) &&
- ((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))) ==
- (XFS_PQUOTA_ACCT|XFS_OQUOTA_ENFD))
+ ((mp->m_qflags & (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD))) ==
+ (XFS_PQUOTA_ACCT|XFS_PQUOTA_ENFD))
xfs_qm_statvfs(ip, statp);
return 0;
}
diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index fec75d0..8cdbd62 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -640,8 +640,8 @@ xfs_trans_dqresv(
if ((flags & XFS_QMOPT_FORCE_RES) == 0 &&
dqp->q_core.d_id &&
((XFS_IS_UQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISUDQ(dqp)) ||
- (XFS_IS_OQUOTA_ENFORCED(dqp->q_mount) &&
- (XFS_QM_ISPDQ(dqp) || XFS_QM_ISGDQ(dqp))))) {
+ (XFS_IS_PQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISPDQ(dqp)) ||
+ (XFS_IS_GQUOTA_ENFORCED(dqp->q_mount) && XFS_QM_ISGDQ(dqp)))) {
if (nblks > 0) {
/*
* dquot is locked already. See if we'd go over the
--
1.7.1