Start using pquotino and define a macro to check if the
superblock has pquotino.
Keep backward compatibilty by alowing mount of older superblock
with no separate pquota inode.
Signed-off-by: Chandra Seetharaman <sekharan@xxxxxxxxxx>
---
fs/xfs/xfs_mount.c | 62 ++++++++++++++++++++++++++++++++++-----
fs/xfs/xfs_qm.c | 28 +++++++++--------
fs/xfs/xfs_qm_syscalls.c | 21 +++++++++++++-
fs/xfs/xfs_sb.h | 9 +++++-
fs/xfs/xfs_super.c | 19 ++++++------
include/uapi/linux/dqblk_xfs.h | 1 +
6 files changed, 108 insertions(+), 32 deletions(-)
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 2b0ba35..b8a633b 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -336,12 +336,17 @@ xfs_mount_validate_sb(
return XFS_ERROR(EWRONGFS);
}
- if ((sbp->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) &&
- (sbp->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.\n");
- return XFS_ERROR(EFSCORRUPTED);
+ if (xfs_sb_version_has_pquota(sbp)) {
+ if (sbp->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) {
+ xfs_notice(mp,
+ "Version 5 of Super block has XFS_OQUOTA bits.\n");
+ return XFS_ERROR(EFSCORRUPTED);
+ }
+ } else if (sbp->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD |
+ XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) {
+ xfs_notice(mp,
+"Superblock earlier than Version 5 has XFS_[PQ]UOTA_{ENFD|CHKD} bits.\n");
+ return XFS_ERROR(EFSCORRUPTED);
}
/*
@@ -570,8 +575,13 @@ out_unwind:
}
static void
-xfs_sb_quota_from_disk(struct xfs_sb *sbp)
+xfs_sb_quota_from_disk(struct xfs_mount *mp)
{
+ struct xfs_sb *sbp = &mp->m_sb;
+
+ if (xfs_sb_version_has_pquota(sbp))
+ return;
+
if (sbp->sb_qflags & XFS_OQUOTA_ENFD)
sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ?
XFS_PQUOTA_ENFD : XFS_GQUOTA_ENFD;
@@ -579,6 +589,18 @@ xfs_sb_quota_from_disk(struct xfs_sb *sbp)
sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ?
XFS_PQUOTA_CHKD : XFS_GQUOTA_CHKD;
sbp->sb_qflags &= ~(XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD);
+
+ if (!xfs_sb_version_has_pquota(sbp) && (XFS_IS_PQUOTA_ON(mp))) {
+ /*
+ * On disk superblock only has sb_gquotino, and incore
+ * superblock has both sb_gquotino and sb_pquotino.
+ * But, only one them is supported at any point of time.
+ * So, if PQUOTA is set in disk superblock, copy over
+ * sb_gquotino to sb_pquotino.
+ */
+ mp->m_sb.sb_pquotino = mp->m_sb.sb_gquotino;
+ mp->m_sb.sb_gquotino = NULLFSINO;
+ }
}
void
@@ -650,6 +672,13 @@ xfs_sb_quota_to_disk(
{
__uint16_t qflags = from->sb_qflags;
+ /*
+ * We need to do these manipilations only if we are working
+ * with an older version of on-disk superblock.
+ */
+ if (xfs_sb_version_has_pquota(from))
+ return;
+
if (*fields & XFS_SB_QFLAGS) {
/*
* The in-core version of sb_qflags do not have
@@ -669,6 +698,23 @@ xfs_sb_quota_to_disk(
to->sb_qflags = cpu_to_be16(qflags);
*fields &= ~XFS_SB_QFLAGS;
}
+
+ if (*fields & XFS_SB_PQUOTINO && *fields & XFS_SB_GQUOTINO) {
+ /*
+ * PQUOTINO and GQUOTINO cannot be used together in versions
+ * of superblock that do not have pquotino. If used, use
+ * sb_flags to resolve which one should be set.
+ */
+ if (from->sb_qflags & XFS_PQUOTA_ACCT)
+ *fields &= ~XFS_SB_GQUOTINO;
+ else
+ *fields &= ~XFS_SB_PQUOTINO;
+ }
+
+ if (*fields & XFS_SB_PQUOTINO) {
+ to->sb_gquotino = cpu_to_be64(from->sb_pquotino);
+ *fields &= ~XFS_SB_PQUOTINO;
+ }
}
/*
@@ -885,7 +931,7 @@ reread:
*/
xfs_sb_from_disk(&mp->m_sb, XFS_BUF_TO_SBP(bp));
- xfs_sb_quota_from_disk(&mp->m_sb);
+ xfs_sb_quota_from_disk(mp);
/*
* We must be able to do sector-sized and sector-aligned IO.
*/
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index d320794..ba12dc4 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -860,21 +860,24 @@ xfs_qm_qino_alloc(
if (flags & XFS_QMOPT_SBVERSION) {
ASSERT(!xfs_sb_version_hasquota(&mp->m_sb));
ASSERT((sbfields & (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
- XFS_SB_GQUOTINO | XFS_SB_QFLAGS)) ==
- (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
- XFS_SB_GQUOTINO | XFS_SB_QFLAGS));
+ XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS)) ==
+ (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
+ XFS_SB_GQUOTINO | XFS_SB_PQUOTINO | XFS_SB_QFLAGS));
xfs_sb_version_addquota(&mp->m_sb);
mp->m_sb.sb_uquotino = NULLFSINO;
mp->m_sb.sb_gquotino = NULLFSINO;
+ mp->m_sb.sb_pquotino = NULLFSINO;
- /* qflags will get updated _after_ quotacheck */
- mp->m_sb.sb_qflags = 0;
+ /* qflags will get updated fully _after_ quotacheck */
+ mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT;
}
if (flags & XFS_QMOPT_UQUOTA)
mp->m_sb.sb_uquotino = (*ip)->i_ino;
- else
+ else if (flags & XFS_QMOPT_GQUOTA)
mp->m_sb.sb_gquotino = (*ip)->i_ino;
+ else
+ mp->m_sb.sb_pquotino = (*ip)->i_ino;
spin_unlock(&mp->m_sb_lock);
xfs_mod_sb(tp, sbfields);
@@ -1484,11 +1487,10 @@ xfs_qm_init_quotainos(
if (error)
goto error_rele;
}
- /* XXX: Use gquotino for now */
if (XFS_IS_PQUOTA_ON(mp) &&
- mp->m_sb.sb_gquotino != NULLFSINO) {
- ASSERT(mp->m_sb.sb_gquotino > 0);
- error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
+ mp->m_sb.sb_pquotino != NULLFSINO) {
+ ASSERT(mp->m_sb.sb_pquotino > 0);
+ error = xfs_iget(mp, NULL, mp->m_sb.sb_pquotino,
0, 0, &pip);
if (error)
goto error_rele;
@@ -1496,7 +1498,8 @@ xfs_qm_init_quotainos(
} else {
flags |= XFS_QMOPT_SBVERSION;
sbflags |= (XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO |
- XFS_SB_GQUOTINO | XFS_SB_QFLAGS);
+ XFS_SB_GQUOTINO | XFS_SB_PQUOTINO |
+ XFS_SB_QFLAGS);
}
/*
@@ -1524,9 +1527,8 @@ xfs_qm_init_quotainos(
flags &= ~XFS_QMOPT_SBVERSION;
}
if (XFS_IS_PQUOTA_ON(mp) && pip == NULL) {
- /* XXX: Use XFS_SB_GQUOTINO for now */
error = xfs_qm_qino_alloc(mp, &pip,
- sbflags | XFS_SB_GQUOTINO,
+ sbflags | XFS_SB_PQUOTINO,
flags | XFS_QMOPT_PQUOTA);
if (error)
goto error_rele;
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index e4f8b2d..132e811 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -296,8 +296,10 @@ xfs_qm_scall_trunc_qfiles(
if (flags & XFS_DQ_USER)
error = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_uquotino);
- if (flags & (XFS_DQ_GROUP|XFS_DQ_PROJ))
+ if (flags & XFS_DQ_GROUP)
error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_gquotino);
+ if (flags & XFS_DQ_PROJ)
+ error2 = xfs_qm_scall_trunc_qfile(mp, mp->m_sb.sb_pquotino);
return error ? error : error2;
}
@@ -413,8 +415,10 @@ xfs_qm_scall_getqstat(
struct xfs_quotainfo *q = mp->m_quotainfo;
struct xfs_inode *uip = NULL;
struct xfs_inode *gip = NULL;
+ struct xfs_inode *pip = NULL;
bool tempuqip = false;
bool tempgqip = false;
+ bool temppqip = false;
memset(out, 0, sizeof(fs_quota_stat_t));
@@ -422,6 +426,7 @@ xfs_qm_scall_getqstat(
if (!xfs_sb_version_hasquota(&mp->m_sb)) {
out->qs_uquota.qfs_ino = NULLFSINO;
out->qs_gquota.qfs_ino = NULLFSINO;
+ out->qs_pquota.qfs_ino = NULLFSINO;
return (0);
}
out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags &
@@ -430,10 +435,13 @@ xfs_qm_scall_getqstat(
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 (&out->qs_gquota != &out->qs_pquota)
+ out->qs_pquota.qfs_ino = mp->m_sb.sb_pquotino;
if (q) {
uip = q->qi_uquotaip;
gip = q->qi_gquotaip;
+ pip = q->qi_pquotaip;
}
if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
@@ -445,6 +453,11 @@ xfs_qm_scall_getqstat(
0, 0, &gip) == 0)
tempgqip = true;
}
+ if (!pip && mp->m_sb.sb_pquotino != NULLFSINO) {
+ if (xfs_iget(mp, NULL, mp->m_sb.sb_pquotino,
+ 0, 0, &pip) == 0)
+ temppqip = true;
+ }
if (uip) {
out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks;
out->qs_uquota.qfs_nextents = uip->i_d.di_nextents;
@@ -457,6 +470,12 @@ xfs_qm_scall_getqstat(
if (tempgqip)
IRELE(gip);
}
+ if (pip) {
+ out->qs_pquota.qfs_nblks = pip->i_d.di_nblocks;
+ out->qs_pquota.qfs_nextents = pip->i_d.di_nextents;
+ if (temppqip)
+ IRELE(pip);
+ }
if (q) {
out->qs_incoredqs = q->qi_dquots;
out->qs_btimelimit = q->qi_btimelimit;
diff --git a/fs/xfs/xfs_sb.h b/fs/xfs/xfs_sb.h
index 78f9e70..d372fdf 100644
--- a/fs/xfs/xfs_sb.h
+++ b/fs/xfs/xfs_sb.h
@@ -621,7 +621,14 @@ xfs_sb_has_incompat_log_feature(
static inline bool
xfs_is_quota_inode(struct xfs_sb *sbp, xfs_ino_t ino)
{
- return (ino == sbp->sb_uquotino || ino == sbp->sb_gquotino);
+ return (ino == sbp->sb_uquotino ||
+ ino == sbp->sb_gquotino ||
+ ino == sbp->sb_pquotino);
+}
+
+static inline int xfs_sb_version_has_pquota(xfs_sb_t *sbp)
+{
+ return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
}
/*
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 1d68ffc..5ade637 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -421,12 +421,6 @@ xfs_parseargs(
}
#endif
- if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) &&
- (mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE))) {
- xfs_warn(mp, "cannot mount with both project and group quota");
- return EINVAL;
- }
-
if ((dsunit && !dswidth) || (!dsunit && dswidth)) {
xfs_warn(mp, "sunit and swidth must be specified together");
return EINVAL;
@@ -556,14 +550,13 @@ xfs_showargs(
else if (mp->m_qflags & XFS_UQUOTA_ACCT)
seq_puts(m, "," MNTOPT_UQUOTANOENF);
- /* Either project or group quotas can be active, not both */
-
if (mp->m_qflags & XFS_PQUOTA_ACCT) {
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_GQUOTA_ACCT) {
if (mp->m_qflags & XFS_GQUOTA_ENFD)
seq_puts(m, "," MNTOPT_GRPQUOTA);
else
@@ -1396,6 +1389,14 @@ xfs_finish_flags(
return XFS_ERROR(EROFS);
}
+ if ((mp->m_qflags & (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE)) &&
+ (mp->m_qflags & (XFS_PQUOTA_ACCT | XFS_PQUOTA_ACTIVE)) &&
+ !xfs_sb_version_has_pquota(&mp->m_sb)) {
+ xfs_warn(mp,
+ "Super block does not support project and group quota together");
+ return XFS_ERROR(EINVAL);
+ }
+
return 0;
}
diff --git a/include/uapi/linux/dqblk_xfs.h b/include/uapi/linux/dqblk_xfs.h
index 8655280..f17e3bb 100644
--- a/include/uapi/linux/dqblk_xfs.h
+++ b/include/uapi/linux/dqblk_xfs.h
@@ -155,6 +155,7 @@ typedef struct fs_quota_stat {
__s8 qs_pad; /* unused */
fs_qfilestat_t qs_uquota; /* user quota storage information */
fs_qfilestat_t qs_gquota; /* group quota storage information */
+#define qs_pquota qs_gquota
__u32 qs_incoredqs; /* number of dquots incore */
__s32 qs_btimelimit; /* limit for blks timer */
__s32 qs_itimelimit; /* limit for inodes timer */
--
1.7.1
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