[PATCH v7 5/5] xfs: Use the new qs_pquota field in fs_quota_stat for Q_XGETQSTAT

[Chandra Seetharaman <sekharan@xxxxxxxxxx>]

For the Q_XGETQSTAT quota command, if the new version of fs_quota_stat
data structure is used, fill the project quota information.

Signed-off-by: Chandra Seetharaman <sekharan@xxxxxxxxxx>
---
 fs/xfs/xfs_qm_syscalls.c |   39 +++++++++++++++++++++++++--------------
 1 files changed, 25 insertions(+), 14 deletions(-)

diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 5b90acc..914513b 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -420,20 +420,14 @@ xfs_qm_scall_getqstat(
 	bool                    tempgqip = false;
 	bool                    temppqip = false;
 
-	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;
+	out->qs_uquota.qfs_ino = NULLFSINO;
+	out->qs_gquota.qfs_ino = NULLFSINO;
+	out->qs_pquota.qfs_ino = NULLFSINO;
+
+	if (!xfs_sb_version_hasquota(&mp->m_sb))
 		return (0);
-	}
 	out->qs_flags = (__uint16_t) xfs_qm_export_flags(mp->m_qflags &
-							(XFS_ALL_QUOTA_ACCT|
-							 XFS_ALL_QUOTA_ENFD));
-	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;
-
+				(XFS_ALL_QUOTA_ACCT | XFS_ALL_QUOTA_ENFD));
 	if (q) {
 		uip = q->qi_uquotaip;
 		gip = q->qi_gquotaip;
@@ -454,21 +448,38 @@ xfs_qm_scall_getqstat(
 					0, 0, &pip) == 0)
 			temppqip = true;
 	}
+
 	if (uip) {
+		out->qs_uquota.qfs_ino = mp->m_sb.sb_uquotino;
 		out->qs_uquota.qfs_nblks = uip->i_d.di_nblocks;
 		out->qs_uquota.qfs_nextents = uip->i_d.di_nextents;
 		if (tempuqip)
 			IRELE(uip);
 	}
 	if (gip) {
+		out->qs_gquota.qfs_ino = mp->m_sb.sb_gquotino;
 		out->qs_gquota.qfs_nblks = gip->i_d.di_nblocks;
 		out->qs_gquota.qfs_nextents = gip->i_d.di_nextents;
 		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 (out->qs_version >= FS_QSTAT_VERSION_2) {
+			out->qs_pquota.qfs_ino = mp->m_sb.sb_pquotino;
+			out->qs_pquota.qfs_nblks = pip->i_d.di_nblocks;
+			out->qs_pquota.qfs_nextents = pip->i_d.di_nextents;
+		} else {
+			/*
+			 * In FS_QSTAT_VERSION version, there is no
+			 * qs_pquota, and there is no combined support
+			 * for gquota/pquota. qs_gquota is shared for
+			 * providing the pquota/gquota information to
+			 * the user space.
+			 */
+			out->qs_gquota.qfs_ino = mp->m_sb.sb_pquotino;
+			out->qs_gquota.qfs_nblks = pip->i_d.di_nblocks;
+			out->qs_gquota.qfs_nextents = pip->i_d.di_nextents;
+		}
 		if (temppqip)
 			IRELE(pip);
 	}
-- 
1.7.1

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