[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>

1 files changed, 41 insertions, 20 deletions

diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index 703ec4efcb41..341cb4604c66 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -96,7 +96,7 @@ typedef struct xfs_dqblk {
  * flags for q_flags field in the dquot.
  */
 #define XFS_DQ_USER             0x0001          /* a user quota */
-/* #define XFS_DQ_PROJ          0x0002          -- project quota (IRIX) */
+#define XFS_DQ_PROJ             0x0002          /* project quota */
 #define XFS_DQ_GROUP            0x0004          /* a group quota */
 #define XFS_DQ_FLOCKED          0x0008          /* flush lock taken */
 #define XFS_DQ_DIRTY            0x0010          /* dquot is dirty */
@@ -104,6 +104,8 @@ typedef struct xfs_dqblk {
 #define XFS_DQ_INACTIVE         0x0040          /* dq off mplist & hashlist */
 #define XFS_DQ_MARKER           0x0080          /* sentinel */
 
+#define XFS_DQ_ALLTYPES         (XFS_DQ_USER|XFS_DQ_PROJ|XFS_DQ_GROUP)
+
 /*
  * In the worst case, when both user and group quotas are on,
  * we can have a max of three dquots changing in a single transaction.
@@ -124,7 +126,7 @@ typedef struct xfs_dqblk {
 typedef struct xfs_dq_logformat {
         __uint16_t              qlf_type;      /* dquot log item type */
         __uint16_t              qlf_size;      /* size of this item */
-        xfs_dqid_t              qlf_id;        /* usr/grp id number : 32 bits */
+        xfs_dqid_t              qlf_id;        /* usr/grp/proj id : 32 bits */
         __int64_t               qlf_blkno;     /* blkno of dquot buffer */
         __int32_t               qlf_len;       /* len of dquot buffer */
         __uint32_t              qlf_boffset;   /* off of dquot in buffer */
@@ -152,9 +154,9 @@ typedef struct xfs_qoff_logformat {
 #define XFS_UQUOTA_ACCT 0x0001  /* user quota accounting ON */
 #define XFS_UQUOTA_ENFD 0x0002  /* user quota limits enforced */
 #define XFS_UQUOTA_CHKD 0x0004  /* quotacheck run on usr quotas */
-#define XFS_PQUOTA_ACCT 0x0008  /* (IRIX) project quota accounting ON */
-#define XFS_GQUOTA_ENFD 0x0010  /* group quota limits enforced */
-#define XFS_GQUOTA_CHKD 0x0020  /* quotacheck run on grp quotas */
+#define XFS_PQUOTA_ACCT 0x0008  /* project quota accounting ON */
+#define XFS_OQUOTA_ENFD 0x0010  /* other (grp/prj) quota limits enforced */
+#define XFS_OQUOTA_CHKD 0x0020  /* quotacheck run on other (grp/prj) quotas */
 #define XFS_GQUOTA_ACCT 0x0040  /* group quota accounting ON */
 
 /*
@@ -162,17 +164,22 @@ typedef struct xfs_qoff_logformat {
  * are in the process of getting turned off. These flags are in m_qflags but
  * never in sb_qflags.
  */
-#define XFS_UQUOTA_ACTIVE       0x0080  /* uquotas are being turned off */
-#define XFS_GQUOTA_ACTIVE       0x0100  /* gquotas are being turned off */
+#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 */
 
 /*
  * Checking XFS_IS_*QUOTA_ON() while holding any inode lock guarantees
  * quota will be not be switched off as long as that inode lock is held.
  */
 #define XFS_IS_QUOTA_ON(mp)     ((mp)->m_qflags & (XFS_UQUOTA_ACTIVE | \
-                                                   XFS_GQUOTA_ACTIVE))
+                                                   XFS_GQUOTA_ACTIVE | \
+                                                   XFS_PQUOTA_ACTIVE))
+#define XFS_IS_OQUOTA_ON(mp)    ((mp)->m_qflags & (XFS_GQUOTA_ACTIVE | \
+                                                   XFS_PQUOTA_ACTIVE))
 #define XFS_IS_UQUOTA_ON(mp)    ((mp)->m_qflags & XFS_UQUOTA_ACTIVE)
 #define XFS_IS_GQUOTA_ON(mp)    ((mp)->m_qflags & XFS_GQUOTA_ACTIVE)
+#define XFS_IS_PQUOTA_ON(mp)    ((mp)->m_qflags & XFS_PQUOTA_ACTIVE)
 
 /*
  * Flags to tell various functions what to do. Not all of these are meaningful
@@ -182,7 +189,7 @@ typedef struct xfs_qoff_logformat {
 #define XFS_QMOPT_DQLOCK        0x0000001 /* dqlock */
 #define XFS_QMOPT_DQALLOC       0x0000002 /* alloc dquot ondisk if needed */
 #define XFS_QMOPT_UQUOTA        0x0000004 /* user dquot requested */
-#define XFS_QMOPT_GQUOTA        0x0000008 /* group dquot requested */
+#define XFS_QMOPT_PQUOTA        0x0000008 /* project dquot requested */
 #define XFS_QMOPT_FORCE_RES     0x0000010 /* ignore quota limits */
 #define XFS_QMOPT_DQSUSER       0x0000020 /* don't cache super users dquot */
 #define XFS_QMOPT_SBVERSION     0x0000040 /* change superblock version num */
@@ -192,6 +199,7 @@ typedef struct xfs_qoff_logformat {
 #define XFS_QMOPT_DOWARN        0x0000400 /* increase warning cnt if necessary */
 #define XFS_QMOPT_ILOCKED       0x0000800 /* inode is already locked (excl) */
 #define XFS_QMOPT_DQREPAIR      0x0001000 /* repair dquot, if damaged. */
+#define XFS_QMOPT_GQUOTA        0x0002000 /* group dquot requested */
 
 /*
  * flags to xfs_trans_mod_dquot to indicate which field needs to be
@@ -231,7 +239,8 @@ typedef struct xfs_qoff_logformat {
 #define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT
 
 
-#define XFS_QMOPT_QUOTALL       (XFS_QMOPT_UQUOTA|XFS_QMOPT_GQUOTA)
+#define XFS_QMOPT_QUOTALL       \
+                (XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA)
 #define XFS_QMOPT_RESBLK_MASK   (XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
 
 #ifdef __KERNEL__
@@ -246,21 +255,33 @@ typedef struct xfs_qoff_logformat {
  */
 #define XFS_NOT_DQATTACHED(mp, ip) ((XFS_IS_UQUOTA_ON(mp) &&\
                                      (ip)->i_udquot == NULL) || \
-                                    (XFS_IS_GQUOTA_ON(mp) && \
+                                    (XFS_IS_OQUOTA_ON(mp) && \
                                      (ip)->i_gdquot == NULL))
 
-#define XFS_QM_NEED_QUOTACHECK(mp) ((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_GQUOTA_CHKD) == 0))
+#define XFS_QM_NEED_QUOTACHECK(mp) \
+        ((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))) || \
+         (XFS_IS_PQUOTA_ON(mp) && \
+                ((mp->m_sb.sb_qflags & XFS_OQUOTA_CHKD) == 0 || \
+                 (mp->m_sb.sb_qflags & XFS_GQUOTA_ACCT))))
+
+#define XFS_MOUNT_QUOTA_SET1    (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
+                                 XFS_UQUOTA_CHKD|XFS_PQUOTA_ACCT|\
+                                 XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD)
+
+#define XFS_MOUNT_QUOTA_SET2    (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
+                                 XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\
+                                 XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD)
 
 #define XFS_MOUNT_QUOTA_ALL     (XFS_UQUOTA_ACCT|XFS_UQUOTA_ENFD|\
-                                 XFS_UQUOTA_CHKD|XFS_GQUOTA_ACCT|\
-                                 XFS_GQUOTA_ENFD|XFS_GQUOTA_CHKD)
+                                 XFS_UQUOTA_CHKD|XFS_PQUOTA_ACCT|\
+                                 XFS_OQUOTA_ENFD|XFS_OQUOTA_CHKD|\
+                                 XFS_GQUOTA_ACCT)
 #define XFS_MOUNT_QUOTA_MASK    (XFS_MOUNT_QUOTA_ALL | XFS_UQUOTA_ACTIVE | \
-                                 XFS_GQUOTA_ACTIVE)
+                                 XFS_GQUOTA_ACTIVE | XFS_PQUOTA_ACTIVE)
 
 
 /*