xfs: Add support for the Q_XGETQSTATV

[deliverable/linux.git] / fs / xfs / xfs_qm_syscalls.c

diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 5290af2411c4deab02dde96eb6904871de61b04e..8174aad0b38813ec836ea044d9a1b7b4dc06f300 100644 (file)
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -404,6 +404,7 @@ xfs_qm_scall_quotaon(
 
 /*
  * Return quota status information, such as uquota-off, enforcements, etc.
+ * for Q_XGETQSTAT command.
  */
 int
 xfs_qm_scall_getqstat(
@@ -491,6 +492,87 @@ xfs_qm_scall_getqstat(
        return 0;
 }
 
+/*
+ * Return quota status information, such as uquota-off, enforcements, etc.
+ * for Q_XGETQSTATV command, to support separate project quota field.
+ */
+int
+xfs_qm_scall_getqstatv(
+       struct xfs_mount        *mp,
+       struct fs_quota_statv   *out)
+{
+       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;
+
+       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 &
+                                                       (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;
+       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,
+                                       0, 0, &uip) == 0)
+                       tempuqip = true;
+       }
+       if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) {
+               if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
+                                       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;
+               if (tempuqip)
+                       IRELE(uip);
+       }
+
+       if (gip) {
+               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 (temppqip)
+                       IRELE(pip);
+       }
+       if (q) {
+               out->qs_incoredqs = q->qi_dquots;
+               out->qs_btimelimit = q->qi_btimelimit;
+               out->qs_itimelimit = q->qi_itimelimit;
+               out->qs_rtbtimelimit = q->qi_rtbtimelimit;
+               out->qs_bwarnlimit = q->qi_bwarnlimit;
+               out->qs_iwarnlimit = q->qi_iwarnlimit;
+       }
+       return 0;
+}
+
 #define XFS_DQ_MASK \
        (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)