xfs: Add pquota fields where gquota is used.

Add project quota changes to all the places where group quota field
is used:
   * add separate project quota members into various structures
   * split project quota and group quotas so that instead of overriding
     the group quota members incore, the new project quota members are
     used instead
   * get rid of usage of the OQUOTA flag incore, in favor of separate
     group and project quota flags.
   * add a project dquot argument to various functions.

Not using the pquotino field from superblock yet.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 12 insertions, 3 deletions

diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index f01012de06d0..0adf27ecf3f1 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -936,6 +936,7 @@ xfs_qm_dqput_final(
 {
         struct xfs_quotainfo    *qi = dqp->q_mount->m_quotainfo;
         struct xfs_dquot        *gdqp;
+        struct xfs_dquot        *pdqp;
 
         trace_xfs_dqput_free(dqp);
 
@@ -949,21 +950,29 @@ xfs_qm_dqput_final(
 
         /*
          * If we just added a udquot to the freelist, then we want to release
-         * the gdquot reference that it (probably) has. Otherwise it'll keep
-         * the gdquot from getting reclaimed.
+         * the gdquot/pdquot reference that it (probably) has. Otherwise it'll
+         * keep the gdquot/pdquot from getting reclaimed.
          */
         gdqp = dqp->q_gdquot;
         if (gdqp) {
                 xfs_dqlock(gdqp);
                 dqp->q_gdquot = NULL;
         }
+
+        pdqp = dqp->q_pdquot;
+        if (pdqp) {
+                xfs_dqlock(pdqp);
+                dqp->q_pdquot = NULL;
+        }
         xfs_dqunlock(dqp);
 
         /*
-         * If we had a group quota hint, release it now.
+         * If we had a group/project quota hint, release it now.
          */
         if (gdqp)
                 xfs_qm_dqput(gdqp);
+        if (pdqp)
+                xfs_qm_dqput(pdqp);
 }
 
 /*