[RFC v3 PATCH 1/4] xfs: Remove incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD

Chandra Seetharaman
2012-01-23T17:32:12Z

Define new macros XFS_GQUOTA_ENFD, XFS_GQUOTA_CHKD, XFS_PQUOTA_ENFD, and
XFS_PQUOTA_CHKD.

Remove incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD. Instead,
start using XFS_GQUOTA_.* XFS_PQUOTA_.* counterparts.

No changes is made to the on-disk version of the superblock yet. On-disk
copy still uses XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
---
fs/xfs/xfs_mount.c | 30 ++++++++++++++++++++++++++++++
fs/xfs/xfs_qm.c | 9 ++++++---
fs/xfs/xfs_qm_syscalls.c | 26 ++++++++++++++------------
fs/xfs/xfs_quota.h | 36 +++++++++++++++++++++++++-----------
fs/xfs/xfs_quotaops.c | 6 ++++--
fs/xfs/xfs_super.c | 16 ++++++++--------
fs/xfs/xfs_trans_dquot.c | 4 ++--
7 files changed, 89 insertions(+), 38 deletions(-)

diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index b50ec5b..d7205b0 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -152,19 +152,34 @@ 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)
@@ -259,24 +274,23 @@ 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_mount.c b/fs/xfs/xfs_mount.c
index 25e9908..64313e4 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -593,6 +593,20 @@ 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(mp, "Super block has XFS_OQUOTA bits along with "
+ "XFS_PQUOTA and/or XFS_GQUOTA bits. Fixing it.\n");
+ }
+ 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);
@@ -622,11 +636,26 @@ xfs_sb_to_disk(
xfs_sb_field_t f;
int first;
int size;
+ __be16 saved_qflags;

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

+ /*
+ * in-core version of qflags do not have XFS_OQUOTA.*, whereas the
+ * on-disk version does. So, save the in-core sb_qflags and restore
+ * it after we modify and copy it to the buffer to be copied to
+ * disk.
+ */
+ saved_qflags = from->sb_qflags;
+
+ if (from->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD))
+ from->sb_qflags |= XFS_OQUOTA_ENFD;
+ if (from->sb_qflags & (XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))
+ from->sb_qflags |= XFS_OQUOTA_CHKD;
+ from->sb_qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD |
+ XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD);
while (fields) {
f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
first = xfs_sb_info[f].offset;
@@ -657,6 +686,7 @@ xfs_sb_to_disk(

fields &= ~(1LL << f);
}
+ from->sb_qflags = saved_qflags;
}

/*
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 1b2f5b3..bb8c2ac 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -313,8 +313,10 @@ 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:
/*
@@ -1449,7 +1451,8 @@ xfs_qm_quotacheck(
XFS_QMOPT_GQUOTA : XFS_QMOPT_PQUOTA);
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 eafbcff..d43c68c 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -121,11 +121,11 @@ 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;
}

@@ -349,9 +349,11 @@ xfs_qm_scall_quotaon(
||
((flags & XFS_PQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
- (flags & XFS_GQUOTA_ACCT) == 0 &&
+ (flags & XFS_PQUOTA_ENFD))
+ ||
+ ((flags & XFS_GQUOTA_ACCT) == 0 &&
(mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT) == 0 &&
- (flags & XFS_OQUOTA_ENFD))) {
+ (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);
@@ -801,8 +803,8 @@ xfs_qm_export_dquot(
* so return zeroes in that case.
*/
if ((!XFS_IS_UQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_USER) ||
- (!XFS_IS_OQUOTA_ENFORCED(mp) &&
- (src->d_flags & (XFS_DQ_PROJ | XFS_DQ_GROUP)))) {
+ (!XFS_IS_PQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_PROJ) ||
+ (!XFS_IS_GQUOTA_ENFORCED(mp) && src->d_flags == XFS_DQ_GROUP)) {
dst->d_btimer = 0;
dst->d_itimer = 0;
dst->d_rtbtimer = 0;
@@ -810,8 +812,8 @@ xfs_qm_export_dquot(

#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 (((int) dst->d_bcount >= (int) dst->d_blk_softlimit) &&
(dst->d_blk_softlimit > 0)) {
@@ -860,10 +862,10 @@ 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_quotaops.c b/fs/xfs/xfs_quotaops.c
index 7e76f53..be5389e 100644
--- a/fs/xfs/xfs_quotaops.c
+++ b/fs/xfs/xfs_quotaops.c
@@ -76,8 +76,10 @@ 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 5e0d43f..01de9f9 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -339,17 +339,17 @@ 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.");
@@ -542,12 +542,12 @@ 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);
@@ -1059,8 +1059,8 @@ 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 4d00ee6..bea957d 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