[XFS] Add support for project quota, based on Dan Knappes earlier work.
SGI-PV: 932952
SGI-Modid: xfs-linux:xfs-kern:22805a
Signed-off-by: Nathan Scott <nathans@sgi.com>
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index 09b1171..dc3c37a 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -71,10 +71,13 @@
#define MNTOPT_NOQUOTA "noquota" /* no quotas */
#define MNTOPT_USRQUOTA "usrquota" /* user quota enabled */
#define MNTOPT_GRPQUOTA "grpquota" /* group quota enabled */
+#define MNTOPT_PRJQUOTA "prjquota" /* project quota enabled */
#define MNTOPT_UQUOTA "uquota" /* user quota (IRIX variant) */
#define MNTOPT_GQUOTA "gquota" /* group quota (IRIX variant) */
+#define MNTOPT_PQUOTA "pquota" /* project quota (IRIX variant) */
#define MNTOPT_UQUOTANOENF "uqnoenforce"/* user quota limit enforcement */
#define MNTOPT_GQUOTANOENF "gqnoenforce"/* group quota limit enforcement */
+#define MNTOPT_PQUOTANOENF "pqnoenforce"/* project quota limit enforcement */
#define MNTOPT_QUOTANOENF "qnoenforce" /* same as uqnoenforce */
STATIC int
@@ -109,6 +112,14 @@
args->flags |= XFSMNT_UQUOTA;
args->flags &= ~XFSMNT_UQUOTAENF;
referenced = 1;
+ } else if (!strcmp(this_char, MNTOPT_PQUOTA) ||
+ !strcmp(this_char, MNTOPT_PRJQUOTA)) {
+ args->flags |= XFSMNT_PQUOTA | XFSMNT_PQUOTAENF;
+ referenced = 1;
+ } else if (!strcmp(this_char, MNTOPT_PQUOTANOENF)) {
+ args->flags |= XFSMNT_PQUOTA;
+ args->flags &= ~XFSMNT_PQUOTAENF;
+ referenced = 1;
} else if (!strcmp(this_char, MNTOPT_GQUOTA) ||
!strcmp(this_char, MNTOPT_GRPQUOTA)) {
args->flags |= XFSMNT_GQUOTA | XFSMNT_GQUOTAENF;
@@ -127,6 +138,12 @@
*this_char++ = ',';
}
+ if ((args->flags & XFSMNT_GQUOTA) && (args->flags & XFSMNT_PQUOTA)) {
+ cmn_err(CE_WARN,
+ "XFS: cannot mount with both project and group quota");
+ return XFS_ERROR(EINVAL);
+ }
+
PVFS_PARSEARGS(BHV_NEXT(bhv), options, args, update, error);
if (!error && !referenced)
bhv_remove_vfsops(bhvtovfs(bhv), VFS_POSITION_QM);
@@ -148,13 +165,19 @@
seq_puts(m, "," MNTOPT_UQUOTANOENF);
}
+ if (mp->m_qflags & XFS_PQUOTA_ACCT) {
+ (mp->m_qflags & XFS_OQUOTA_ENFD) ?
+ seq_puts(m, "," MNTOPT_PRJQUOTA) :
+ seq_puts(m, "," MNTOPT_PQUOTANOENF);
+ }
+
if (mp->m_qflags & XFS_GQUOTA_ACCT) {
- (mp->m_qflags & XFS_GQUOTA_ENFD) ?
+ (mp->m_qflags & XFS_OQUOTA_ENFD) ?
seq_puts(m, "," MNTOPT_GRPQUOTA) :
seq_puts(m, "," MNTOPT_GQUOTANOENF);
}
- if (!(mp->m_qflags & (XFS_UQUOTA_ACCT|XFS_GQUOTA_ACCT)))
+ if (!(mp->m_qflags & XFS_ALL_QUOTA_ACCT))
seq_puts(m, "," MNTOPT_NOQUOTA);
PVFS_SHOWARGS(BHV_NEXT(bhv), m, error);
@@ -171,7 +194,7 @@
struct xfs_mount *mp = XFS_VFSTOM(vfsp);
int error;
- if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA))
+ if (args->flags & (XFSMNT_UQUOTA | XFSMNT_GQUOTA | XFSMNT_PQUOTA))
xfs_qm_mount_quotainit(mp, args->flags);
PVFS_MOUNT(BHV_NEXT(bhv), args, cr, error);
return error;
@@ -255,16 +278,17 @@
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);
+ (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;
}
@@ -277,13 +301,16 @@
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);
}