9 files changed, 319 insertions, 196 deletions

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index c8b148bbdc8b..3e193cb36996 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -667,7 +667,7 @@ static void do_qc(struct gfs2_quota_data *qd, s64 change)
 
 static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
                              s64 change, struct gfs2_quota_data *qd,
-                             struct fs_disk_quota *fdq)
+                             struct qc_dqblk *fdq)
 {
         struct inode *inode = &ip->i_inode;
         struct gfs2_sbd *sdp = GFS2_SB(inode);
@@ -697,16 +697,16 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
         be64_add_cpu(&q.qu_value, change);
         qd->qd_qb.qb_value = q.qu_value;
         if (fdq) {
-                if (fdq->d_fieldmask & FS_DQ_BSOFT) {
-                        q.qu_warn = cpu_to_be64(fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift);
+                if (fdq->d_fieldmask & QC_SPC_SOFT) {
+                        q.qu_warn = cpu_to_be64(fdq->d_spc_softlimit >> sdp->sd_sb.sb_bsize_shift);
                         qd->qd_qb.qb_warn = q.qu_warn;
                 }
-                if (fdq->d_fieldmask & FS_DQ_BHARD) {
-                        q.qu_limit = cpu_to_be64(fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift);
+                if (fdq->d_fieldmask & QC_SPC_HARD) {
+                        q.qu_limit = cpu_to_be64(fdq->d_spc_hardlimit >> sdp->sd_sb.sb_bsize_shift);
                         qd->qd_qb.qb_limit = q.qu_limit;
                 }
-                if (fdq->d_fieldmask & FS_DQ_BCOUNT) {
-                        q.qu_value = cpu_to_be64(fdq->d_bcount >> sdp->sd_fsb2bb_shift);
+                if (fdq->d_fieldmask & QC_SPACE) {
+                        q.qu_value = cpu_to_be64(fdq->d_space >> sdp->sd_sb.sb_bsize_shift);
                         qd->qd_qb.qb_value = q.qu_value;
                 }
         }
@@ -1497,7 +1497,7 @@ static int gfs2_quota_get_xstate(struct super_block *sb,
 }
 
 static int gfs2_get_dqblk(struct super_block *sb, struct kqid qid,
-                          struct fs_disk_quota *fdq)
+                          struct qc_dqblk *fdq)
 {
         struct gfs2_sbd *sdp = sb->s_fs_info;
         struct gfs2_quota_lvb *qlvb;
@@ -1505,7 +1505,7 @@ static int gfs2_get_dqblk(struct super_block *sb, struct kqid qid,
         struct gfs2_holder q_gh;
         int error;
 
-        memset(fdq, 0, sizeof(struct fs_disk_quota));
+        memset(fdq, 0, sizeof(*fdq));
 
         if (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF)
                 return -ESRCH; /* Crazy XFS error code */
@@ -1522,12 +1522,9 @@ static int gfs2_get_dqblk(struct super_block *sb, struct kqid qid,
                 goto out;
 
         qlvb = (struct gfs2_quota_lvb *)qd->qd_gl->gl_lksb.sb_lvbptr;
-        fdq->d_version = FS_DQUOT_VERSION;
-        fdq->d_flags = (qid.type == USRQUOTA) ? FS_USER_QUOTA : FS_GROUP_QUOTA;
-        fdq->d_id = from_kqid_munged(current_user_ns(), qid);
-        fdq->d_blk_hardlimit = be64_to_cpu(qlvb->qb_limit) << sdp->sd_fsb2bb_shift;
-        fdq->d_blk_softlimit = be64_to_cpu(qlvb->qb_warn) << sdp->sd_fsb2bb_shift;
-        fdq->d_bcount = be64_to_cpu(qlvb->qb_value) << sdp->sd_fsb2bb_shift;
+        fdq->d_spc_hardlimit = be64_to_cpu(qlvb->qb_limit) << sdp->sd_sb.sb_bsize_shift;
+        fdq->d_spc_softlimit = be64_to_cpu(qlvb->qb_warn) << sdp->sd_sb.sb_bsize_shift;
+        fdq->d_space = be64_to_cpu(qlvb->qb_value) << sdp->sd_sb.sb_bsize_shift;
 
         gfs2_glock_dq_uninit(&q_gh);
 out:
@@ -1536,10 +1533,10 @@ out:
 }
 
 /* GFS2 only supports a subset of the XFS fields */
-#define GFS2_FIELDMASK (FS_DQ_BSOFT|FS_DQ_BHARD|FS_DQ_BCOUNT)
+#define GFS2_FIELDMASK (QC_SPC_SOFT|QC_SPC_HARD|QC_SPACE)
 
 static int gfs2_set_dqblk(struct super_block *sb, struct kqid qid,
-                          struct fs_disk_quota *fdq)
+                          struct qc_dqblk *fdq)
 {
         struct gfs2_sbd *sdp = sb->s_fs_info;
         struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
@@ -1583,17 +1580,17 @@ static int gfs2_set_dqblk(struct super_block *sb, struct kqid qid,
                 goto out_i;
 
         /* If nothing has changed, this is a no-op */
-        if ((fdq->d_fieldmask & FS_DQ_BSOFT) &&
-            ((fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_warn)))
-                fdq->d_fieldmask ^= FS_DQ_BSOFT;
+        if ((fdq->d_fieldmask & QC_SPC_SOFT) &&
+            ((fdq->d_spc_softlimit >> sdp->sd_sb.sb_bsize_shift) == be64_to_cpu(qd->qd_qb.qb_warn)))
+                fdq->d_fieldmask ^= QC_SPC_SOFT;
 
-        if ((fdq->d_fieldmask & FS_DQ_BHARD) &&
-            ((fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_limit)))
-                fdq->d_fieldmask ^= FS_DQ_BHARD;
+        if ((fdq->d_fieldmask & QC_SPC_HARD) &&
+            ((fdq->d_spc_hardlimit >> sdp->sd_sb.sb_bsize_shift) == be64_to_cpu(qd->qd_qb.qb_limit)))
+                fdq->d_fieldmask ^= QC_SPC_HARD;
 
-        if ((fdq->d_fieldmask & FS_DQ_BCOUNT) &&
-            ((fdq->d_bcount >> sdp->sd_fsb2bb_shift) == be64_to_cpu(qd->qd_qb.qb_value)))
-                fdq->d_fieldmask ^= FS_DQ_BCOUNT;
+        if ((fdq->d_fieldmask & QC_SPACE) &&
+            ((fdq->d_space >> sdp->sd_sb.sb_bsize_shift) == be64_to_cpu(qd->qd_qb.qb_value)))
+                fdq->d_fieldmask ^= QC_SPACE;
 
         if (fdq->d_fieldmask == 0)
                 goto out_i;
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 8f0acef3d184..69df5b239844 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -2396,30 +2396,25 @@ static inline qsize_t stoqb(qsize_t space)
 }
 
 /* Generic routine for getting common part of quota structure */
-static void do_get_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
+static void do_get_dqblk(struct dquot *dquot, struct qc_dqblk *di)
 {
         struct mem_dqblk *dm = &dquot->dq_dqb;
 
         memset(di, 0, sizeof(*di));
-        di->d_version = FS_DQUOT_VERSION;
-        di->d_flags = dquot->dq_id.type == USRQUOTA ?
-                        FS_USER_QUOTA : FS_GROUP_QUOTA;
-        di->d_id = from_kqid_munged(current_user_ns(), dquot->dq_id);
-
         spin_lock(&dq_data_lock);
-        di->d_blk_hardlimit = stoqb(dm->dqb_bhardlimit);
-        di->d_blk_softlimit = stoqb(dm->dqb_bsoftlimit);
+        di->d_spc_hardlimit = dm->dqb_bhardlimit;
+        di->d_spc_softlimit = dm->dqb_bsoftlimit;
         di->d_ino_hardlimit = dm->dqb_ihardlimit;
         di->d_ino_softlimit = dm->dqb_isoftlimit;
-        di->d_bcount = dm->dqb_curspace + dm->dqb_rsvspace;
-        di->d_icount = dm->dqb_curinodes;
-        di->d_btimer = dm->dqb_btime;
-        di->d_itimer = dm->dqb_itime;
+        di->d_space = dm->dqb_curspace + dm->dqb_rsvspace;
+        di->d_ino_count = dm->dqb_curinodes;
+        di->d_spc_timer = dm->dqb_btime;
+        di->d_ino_timer = dm->dqb_itime;
         spin_unlock(&dq_data_lock);
 }
 
 int dquot_get_dqblk(struct super_block *sb, struct kqid qid,
-                    struct fs_disk_quota *di)
+                    struct qc_dqblk *di)
 {
         struct dquot *dquot;
 
@@ -2433,70 +2428,70 @@ int dquot_get_dqblk(struct super_block *sb, struct kqid qid,
 }
 EXPORT_SYMBOL(dquot_get_dqblk);
 
-#define VFS_FS_DQ_MASK \
-        (FS_DQ_BCOUNT | FS_DQ_BSOFT | FS_DQ_BHARD | \
-         FS_DQ_ICOUNT | FS_DQ_ISOFT | FS_DQ_IHARD | \
-         FS_DQ_BTIMER | FS_DQ_ITIMER)
+#define VFS_QC_MASK \
+        (QC_SPACE | QC_SPC_SOFT | QC_SPC_HARD | \
+         QC_INO_COUNT | QC_INO_SOFT | QC_INO_HARD | \
+         QC_SPC_TIMER | QC_INO_TIMER)
 
 /* Generic routine for setting common part of quota structure */
-static int do_set_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
+static int do_set_dqblk(struct dquot *dquot, struct qc_dqblk *di)
 {
         struct mem_dqblk *dm = &dquot->dq_dqb;
         int check_blim = 0, check_ilim = 0;
         struct mem_dqinfo *dqi = &sb_dqopt(dquot->dq_sb)->info[dquot->dq_id.type];
 
-        if (di->d_fieldmask & ~VFS_FS_DQ_MASK)
+        if (di->d_fieldmask & ~VFS_QC_MASK)
                 return -EINVAL;
 
-        if (((di->d_fieldmask & FS_DQ_BSOFT) &&
-             (di->d_blk_softlimit > dqi->dqi_maxblimit)) ||
-            ((di->d_fieldmask & FS_DQ_BHARD) &&
-             (di->d_blk_hardlimit > dqi->dqi_maxblimit)) ||
-            ((di->d_fieldmask & FS_DQ_ISOFT) &&
+        if (((di->d_fieldmask & QC_SPC_SOFT) &&
+             stoqb(di->d_spc_softlimit) > dqi->dqi_maxblimit) ||
+            ((di->d_fieldmask & QC_SPC_HARD) &&
+             stoqb(di->d_spc_hardlimit) > dqi->dqi_maxblimit) ||
+            ((di->d_fieldmask & QC_INO_SOFT) &&
              (di->d_ino_softlimit > dqi->dqi_maxilimit)) ||
-            ((di->d_fieldmask & FS_DQ_IHARD) &&
+            ((di->d_fieldmask & QC_INO_HARD) &&
              (di->d_ino_hardlimit > dqi->dqi_maxilimit)))
                 return -ERANGE;
 
         spin_lock(&dq_data_lock);
-        if (di->d_fieldmask & FS_DQ_BCOUNT) {
-                dm->dqb_curspace = di->d_bcount - dm->dqb_rsvspace;
+        if (di->d_fieldmask & QC_SPACE) {
+                dm->dqb_curspace = di->d_space - dm->dqb_rsvspace;
                 check_blim = 1;
                 set_bit(DQ_LASTSET_B + QIF_SPACE_B, &dquot->dq_flags);
         }
 
-        if (di->d_fieldmask & FS_DQ_BSOFT)
-                dm->dqb_bsoftlimit = qbtos(di->d_blk_softlimit);
-        if (di->d_fieldmask & FS_DQ_BHARD)
-                dm->dqb_bhardlimit = qbtos(di->d_blk_hardlimit);
-        if (di->d_fieldmask & (FS_DQ_BSOFT | FS_DQ_BHARD)) {
+        if (di->d_fieldmask & QC_SPC_SOFT)
+                dm->dqb_bsoftlimit = di->d_spc_softlimit;
+        if (di->d_fieldmask & QC_SPC_HARD)
+                dm->dqb_bhardlimit = di->d_spc_hardlimit;
+        if (di->d_fieldmask & (QC_SPC_SOFT | QC_SPC_HARD)) {
                 check_blim = 1;
                 set_bit(DQ_LASTSET_B + QIF_BLIMITS_B, &dquot->dq_flags);
         }
 
-        if (di->d_fieldmask & FS_DQ_ICOUNT) {
-                dm->dqb_curinodes = di->d_icount;
+        if (di->d_fieldmask & QC_INO_COUNT) {
+                dm->dqb_curinodes = di->d_ino_count;
                 check_ilim = 1;
                 set_bit(DQ_LASTSET_B + QIF_INODES_B, &dquot->dq_flags);
         }
 
-        if (di->d_fieldmask & FS_DQ_ISOFT)
+        if (di->d_fieldmask & QC_INO_SOFT)
                 dm->dqb_isoftlimit = di->d_ino_softlimit;
-        if (di->d_fieldmask & FS_DQ_IHARD)
+        if (di->d_fieldmask & QC_INO_HARD)
                 dm->dqb_ihardlimit = di->d_ino_hardlimit;
-        if (di->d_fieldmask & (FS_DQ_ISOFT | FS_DQ_IHARD)) {
+        if (di->d_fieldmask & (QC_INO_SOFT | QC_INO_HARD)) {
                 check_ilim = 1;
                 set_bit(DQ_LASTSET_B + QIF_ILIMITS_B, &dquot->dq_flags);
         }
 
-        if (di->d_fieldmask & FS_DQ_BTIMER) {
-                dm->dqb_btime = di->d_btimer;
+        if (di->d_fieldmask & QC_SPC_TIMER) {
+                dm->dqb_btime = di->d_spc_timer;
                 check_blim = 1;
                 set_bit(DQ_LASTSET_B + QIF_BTIME_B, &dquot->dq_flags);
         }
 
-        if (di->d_fieldmask & FS_DQ_ITIMER) {
-                dm->dqb_itime = di->d_itimer;
+        if (di->d_fieldmask & QC_INO_TIMER) {
+                dm->dqb_itime = di->d_ino_timer;
                 check_ilim = 1;
                 set_bit(DQ_LASTSET_B + QIF_ITIME_B, &dquot->dq_flags);
         }
@@ -2506,7 +2501,7 @@ static int do_set_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
                     dm->dqb_curspace < dm->dqb_bsoftlimit) {
                         dm->dqb_btime = 0;
                         clear_bit(DQ_BLKS_B, &dquot->dq_flags);
-                } else if (!(di->d_fieldmask & FS_DQ_BTIMER))
+                } else if (!(di->d_fieldmask & QC_SPC_TIMER))
                         /* Set grace only if user hasn't provided his own... */
                         dm->dqb_btime = get_seconds() + dqi->dqi_bgrace;
         }
@@ -2515,7 +2510,7 @@ static int do_set_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
                     dm->dqb_curinodes < dm->dqb_isoftlimit) {
                         dm->dqb_itime = 0;
                         clear_bit(DQ_INODES_B, &dquot->dq_flags);
-                } else if (!(di->d_fieldmask & FS_DQ_ITIMER))
+                } else if (!(di->d_fieldmask & QC_INO_TIMER))
                         /* Set grace only if user hasn't provided his own... */
                         dm->dqb_itime = get_seconds() + dqi->dqi_igrace;
         }
@@ -2531,7 +2526,7 @@ static int do_set_dqblk(struct dquot *dquot, struct fs_disk_quota *di)
 }
 
 int dquot_set_dqblk(struct super_block *sb, struct kqid qid,
-                  struct fs_disk_quota *di)
+                  struct qc_dqblk *di)
 {
         struct dquot *dquot;
         int rc;
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 2aa4151f99d2..6f3856328eea 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -118,17 +118,27 @@ static int quota_setinfo(struct super_block *sb, int type, void __user *addr)
         return sb->s_qcop->set_info(sb, type, &info);
 }
 
-static void copy_to_if_dqblk(struct if_dqblk *dst, struct fs_disk_quota *src)
+static inline qsize_t qbtos(qsize_t blocks)
+{
+        return blocks << QIF_DQBLKSIZE_BITS;
+}
+
+static inline qsize_t stoqb(qsize_t space)
+{
+        return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
+}
+
+static void copy_to_if_dqblk(struct if_dqblk *dst, struct qc_dqblk *src)
 {
         memset(dst, 0, sizeof(*dst));
-        dst->dqb_bhardlimit = src->d_blk_hardlimit;
-        dst->dqb_bsoftlimit = src->d_blk_softlimit;
-        dst->dqb_curspace = src->d_bcount;
+        dst->dqb_bhardlimit = stoqb(src->d_spc_hardlimit);
+        dst->dqb_bsoftlimit = stoqb(src->d_spc_softlimit);
+        dst->dqb_curspace = src->d_space;
         dst->dqb_ihardlimit = src->d_ino_hardlimit;
         dst->dqb_isoftlimit = src->d_ino_softlimit;
-        dst->dqb_curinodes = src->d_icount;
-        dst->dqb_btime = src->d_btimer;
-        dst->dqb_itime = src->d_itimer;
+        dst->dqb_curinodes = src->d_ino_count;
+        dst->dqb_btime = src->d_spc_timer;
+        dst->dqb_itime = src->d_ino_timer;
         dst->dqb_valid = QIF_ALL;
 }
 
@@ -136,7 +146,7 @@ static int quota_getquota(struct super_block *sb, int type, qid_t id,
                           void __user *addr)
 {
         struct kqid qid;
-        struct fs_disk_quota fdq;
+        struct qc_dqblk fdq;
         struct if_dqblk idq;
         int ret;
 
@@ -154,36 +164,36 @@ static int quota_getquota(struct super_block *sb, int type, qid_t id,
         return 0;
 }
 
-static void copy_from_if_dqblk(struct fs_disk_quota *dst, struct if_dqblk *src)
+static void copy_from_if_dqblk(struct qc_dqblk *dst, struct if_dqblk *src)
 {
-        dst->d_blk_hardlimit = src->dqb_bhardlimit;
-        dst->d_blk_softlimit  = src->dqb_bsoftlimit;
-        dst->d_bcount = src->dqb_curspace;
+        dst->d_spc_hardlimit = qbtos(src->dqb_bhardlimit);
+        dst->d_spc_softlimit = qbtos(src->dqb_bsoftlimit);
+        dst->d_space = src->dqb_curspace;
         dst->d_ino_hardlimit = src->dqb_ihardlimit;
         dst->d_ino_softlimit = src->dqb_isoftlimit;
-        dst->d_icount = src->dqb_curinodes;
-        dst->d_btimer = src->dqb_btime;
-        dst->d_itimer = src->dqb_itime;
+        dst->d_ino_count = src->dqb_curinodes;
+        dst->d_spc_timer = src->dqb_btime;
+        dst->d_ino_timer = src->dqb_itime;
 
         dst->d_fieldmask = 0;
         if (src->dqb_valid & QIF_BLIMITS)
-                dst->d_fieldmask |= FS_DQ_BSOFT | FS_DQ_BHARD;
+                dst->d_fieldmask |= QC_SPC_SOFT | QC_SPC_HARD;
         if (src->dqb_valid & QIF_SPACE)
-                dst->d_fieldmask |= FS_DQ_BCOUNT;
+                dst->d_fieldmask |= QC_SPACE;
         if (src->dqb_valid & QIF_ILIMITS)
-                dst->d_fieldmask |= FS_DQ_ISOFT | FS_DQ_IHARD;
+                dst->d_fieldmask |= QC_INO_SOFT | QC_INO_HARD;
         if (src->dqb_valid & QIF_INODES)
-                dst->d_fieldmask |= FS_DQ_ICOUNT;
+                dst->d_fieldmask |= QC_INO_COUNT;
         if (src->dqb_valid & QIF_BTIME)
-                dst->d_fieldmask |= FS_DQ_BTIMER;
+                dst->d_fieldmask |= QC_SPC_TIMER;
         if (src->dqb_valid & QIF_ITIME)
-                dst->d_fieldmask |= FS_DQ_ITIMER;
+                dst->d_fieldmask |= QC_INO_TIMER;
 }
 
 static int quota_setquota(struct super_block *sb, int type, qid_t id,
                           void __user *addr)
 {
-        struct fs_disk_quota fdq;
+        struct qc_dqblk fdq;
         struct if_dqblk idq;
         struct kqid qid;
 
@@ -247,10 +257,78 @@ static int quota_getxstatev(struct super_block *sb, void __user *addr)
         return ret;
 }
 
+/*
+ * XFS defines BBTOB and BTOBB macros inside fs/xfs/ and we cannot move them
+ * out of there as xfsprogs rely on definitions being in that header file. So
+ * just define same functions here for quota purposes.
+ */
+#define XFS_BB_SHIFT 9
+
+static inline u64 quota_bbtob(u64 blocks)
+{
+        return blocks << XFS_BB_SHIFT;
+}
+
+static inline u64 quota_btobb(u64 bytes)
+{
+        return (bytes + (1 << XFS_BB_SHIFT) - 1) >> XFS_BB_SHIFT;
+}
+
+static void copy_from_xfs_dqblk(struct qc_dqblk *dst, struct fs_disk_quota *src)
+{
+        dst->d_spc_hardlimit = quota_bbtob(src->d_blk_hardlimit);
+        dst->d_spc_softlimit = quota_bbtob(src->d_blk_softlimit);
+        dst->d_ino_hardlimit = src->d_ino_hardlimit;
+        dst->d_ino_softlimit = src->d_ino_softlimit;
+        dst->d_space = quota_bbtob(src->d_bcount);
+        dst->d_ino_count = src->d_icount;
+        dst->d_ino_timer = src->d_itimer;
+        dst->d_spc_timer = src->d_btimer;
+        dst->d_ino_warns = src->d_iwarns;
+        dst->d_spc_warns = src->d_bwarns;
+        dst->d_rt_spc_hardlimit = quota_bbtob(src->d_rtb_hardlimit);
+        dst->d_rt_spc_softlimit = quota_bbtob(src->d_rtb_softlimit);
+        dst->d_rt_space = quota_bbtob(src->d_rtbcount);
+        dst->d_rt_spc_timer = src->d_rtbtimer;
+        dst->d_rt_spc_warns = src->d_rtbwarns;
+        dst->d_fieldmask = 0;
+        if (src->d_fieldmask & FS_DQ_ISOFT)
+                dst->d_fieldmask |= QC_INO_SOFT;
+        if (src->d_fieldmask & FS_DQ_IHARD)
+                dst->d_fieldmask |= QC_INO_HARD;
+        if (src->d_fieldmask & FS_DQ_BSOFT)
+                dst->d_fieldmask |= QC_SPC_SOFT;
+        if (src->d_fieldmask & FS_DQ_BHARD)
+                dst->d_fieldmask |= QC_SPC_HARD;
+        if (src->d_fieldmask & FS_DQ_RTBSOFT)
+                dst->d_fieldmask |= QC_RT_SPC_SOFT;
+        if (src->d_fieldmask & FS_DQ_RTBHARD)
+                dst->d_fieldmask |= QC_RT_SPC_HARD;
+        if (src->d_fieldmask & FS_DQ_BTIMER)
+                dst->d_fieldmask |= QC_SPC_TIMER;
+        if (src->d_fieldmask & FS_DQ_ITIMER)
+                dst->d_fieldmask |= QC_INO_TIMER;
+        if (src->d_fieldmask & FS_DQ_RTBTIMER)
+                dst->d_fieldmask |= QC_RT_SPC_TIMER;
+        if (src->d_fieldmask & FS_DQ_BWARNS)
+                dst->d_fieldmask |= QC_SPC_WARNS;
+        if (src->d_fieldmask & FS_DQ_IWARNS)
+                dst->d_fieldmask |= QC_INO_WARNS;
+        if (src->d_fieldmask & FS_DQ_RTBWARNS)
+                dst->d_fieldmask |= QC_RT_SPC_WARNS;
+        if (src->d_fieldmask & FS_DQ_BCOUNT)
+                dst->d_fieldmask |= QC_SPACE;
+        if (src->d_fieldmask & FS_DQ_ICOUNT)
+                dst->d_fieldmask |= QC_INO_COUNT;
+        if (src->d_fieldmask & FS_DQ_RTBCOUNT)
+                dst->d_fieldmask |= QC_RT_SPACE;
+}
+
 static int quota_setxquota(struct super_block *sb, int type, qid_t id,
                            void __user *addr)
 {
         struct fs_disk_quota fdq;
+        struct qc_dqblk qdq;
         struct kqid qid;
 
         if (copy_from_user(&fdq, addr, sizeof(fdq)))
@@ -260,13 +338,44 @@ static int quota_setxquota(struct super_block *sb, int type, qid_t id,
         qid = make_kqid(current_user_ns(), type, id);
         if (!qid_valid(qid))
                 return -EINVAL;
-        return sb->s_qcop->set_dqblk(sb, qid, &fdq);
+        copy_from_xfs_dqblk(&qdq, &fdq);
+        return sb->s_qcop->set_dqblk(sb, qid, &qdq);
+}
+
+static void copy_to_xfs_dqblk(struct fs_disk_quota *dst, struct qc_dqblk *src,
+                              int type, qid_t id)
+{
+        memset(dst, 0, sizeof(*dst));
+        dst->d_version = FS_DQUOT_VERSION;
+        dst->d_id = id;
+        if (type == USRQUOTA)
+                dst->d_flags = FS_USER_QUOTA;
+        else if (type == PRJQUOTA)
+                dst->d_flags = FS_PROJ_QUOTA;
+        else
+                dst->d_flags = FS_GROUP_QUOTA;
+        dst->d_blk_hardlimit = quota_btobb(src->d_spc_hardlimit);
+        dst->d_blk_softlimit = quota_btobb(src->d_spc_softlimit);
+        dst->d_ino_hardlimit = src->d_ino_hardlimit;
+        dst->d_ino_softlimit = src->d_ino_softlimit;
+        dst->d_bcount = quota_btobb(src->d_space);
+        dst->d_icount = src->d_ino_count;
+        dst->d_itimer = src->d_ino_timer;
+        dst->d_btimer = src->d_spc_timer;
+        dst->d_iwarns = src->d_ino_warns;
+        dst->d_bwarns = src->d_spc_warns;
+        dst->d_rtb_hardlimit = quota_btobb(src->d_rt_spc_hardlimit);
+        dst->d_rtb_softlimit = quota_btobb(src->d_rt_spc_softlimit);
+        dst->d_rtbcount = quota_btobb(src->d_rt_space);
+        dst->d_rtbtimer = src->d_rt_spc_timer;
+        dst->d_rtbwarns = src->d_rt_spc_warns;
 }
 
 static int quota_getxquota(struct super_block *sb, int type, qid_t id,
                            void __user *addr)
 {
         struct fs_disk_quota fdq;
+        struct qc_dqblk qdq;
         struct kqid qid;
         int ret;
 
@@ -275,8 +384,11 @@ static int quota_getxquota(struct super_block *sb, int type, qid_t id,
         qid = make_kqid(current_user_ns(), type, id);
         if (!qid_valid(qid))
                 return -EINVAL;
-        ret = sb->s_qcop->get_dqblk(sb, qid, &fdq);
-        if (!ret && copy_to_user(addr, &fdq, sizeof(fdq)))
+        ret = sb->s_qcop->get_dqblk(sb, qid, &qdq);
+        if (ret)
+                return ret;
+        copy_to_xfs_dqblk(&fdq, &qdq, type, id);
+        if (copy_to_user(addr, &fdq, sizeof(fdq)))
                 return -EFAULT;
         return ret;
 }
diff --git a/fs/udf/file.c b/fs/udf/file.c
index bb15771b92ae..08f3555fbeac 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -224,7 +224,7 @@ out:
 static int udf_release_file(struct inode *inode, struct file *filp)
 {
         if (filp->f_mode & FMODE_WRITE &&
-            atomic_read(&inode->i_writecount) > 1) {
+            atomic_read(&inode->i_writecount) == 1) {
                 /*
                  * Grab i_mutex to avoid races with writes changing i_size
                  * while we are running.
diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
index 3a07a937e232..41f6c0b9d51c 100644
--- a/fs/xfs/xfs_qm.h
+++ b/fs/xfs/xfs_qm.h
@@ -166,9 +166,9 @@ extern void		xfs_qm_dqrele_all_inodes(struct xfs_mount *, uint);
 /* quota ops */
 extern int              xfs_qm_scall_trunc_qfiles(struct xfs_mount *, uint);
 extern int              xfs_qm_scall_getquota(struct xfs_mount *, xfs_dqid_t,
-                                        uint, struct fs_disk_quota *);
+                                        uint, struct qc_dqblk *);
 extern int              xfs_qm_scall_setqlim(struct xfs_mount *, xfs_dqid_t, uint,
-                                        struct fs_disk_quota *);
+                                        struct qc_dqblk *);
 extern int              xfs_qm_scall_getqstat(struct xfs_mount *,
                                         struct fs_quota_stat *);
 extern int              xfs_qm_scall_getqstatv(struct xfs_mount *,
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 74fca68e43b6..cb6168ec92c9 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -39,7 +39,6 @@ STATIC int	xfs_qm_log_quotaoff(xfs_mount_t *, xfs_qoff_logitem_t **, uint);
 STATIC int      xfs_qm_log_quotaoff_end(xfs_mount_t *, xfs_qoff_logitem_t *,
                                         uint);
 STATIC uint     xfs_qm_export_flags(uint);
-STATIC uint     xfs_qm_export_qtype_flags(uint);
 
 /*
  * Turn off quota accounting and/or enforcement for all udquots and/or
@@ -573,8 +572,8 @@ xfs_qm_scall_getqstatv(
         return 0;
 }
 
-#define XFS_DQ_MASK \
-        (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
+#define XFS_QC_MASK \
+        (QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
 
 /*
  * Adjust quota limits, and start/stop timers accordingly.
@@ -584,7 +583,7 @@ xfs_qm_scall_setqlim(
         struct xfs_mount        *mp,
         xfs_dqid_t              id,
         uint                    type,
-        fs_disk_quota_t         *newlim)
+        struct qc_dqblk         *newlim)
 {
         struct xfs_quotainfo    *q = mp->m_quotainfo;
         struct xfs_disk_dquot   *ddq;
@@ -593,9 +592,9 @@ xfs_qm_scall_setqlim(
         int                     error;
         xfs_qcnt_t              hard, soft;
 
-        if (newlim->d_fieldmask & ~XFS_DQ_MASK)
+        if (newlim->d_fieldmask & ~XFS_QC_MASK)
                 return -EINVAL;
-        if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0)
+        if ((newlim->d_fieldmask & XFS_QC_MASK) == 0)
                 return 0;
 
         /*
@@ -633,11 +632,11 @@ xfs_qm_scall_setqlim(
         /*
          * Make sure that hardlimits are >= soft limits before changing.
          */
-        hard = (newlim->d_fieldmask & FS_DQ_BHARD) ?
-                (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_hardlimit) :
+        hard = (newlim->d_fieldmask & QC_SPC_HARD) ?
+                (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) :
                         be64_to_cpu(ddq->d_blk_hardlimit);
-        soft = (newlim->d_fieldmask & FS_DQ_BSOFT) ?
-                (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_blk_softlimit) :
+        soft = (newlim->d_fieldmask & QC_SPC_SOFT) ?
+                (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) :
                         be64_to_cpu(ddq->d_blk_softlimit);
         if (hard == 0 || hard >= soft) {
                 ddq->d_blk_hardlimit = cpu_to_be64(hard);
@@ -650,11 +649,11 @@ xfs_qm_scall_setqlim(
         } else {
                 xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft);
         }
-        hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ?
-                (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) :
+        hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
+                (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) :
                         be64_to_cpu(ddq->d_rtb_hardlimit);
-        soft = (newlim->d_fieldmask & FS_DQ_RTBSOFT) ?
-                (xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_softlimit) :
+        soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ?
+                (xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) :
                         be64_to_cpu(ddq->d_rtb_softlimit);
         if (hard == 0 || hard >= soft) {
                 ddq->d_rtb_hardlimit = cpu_to_be64(hard);
@@ -667,10 +666,10 @@ xfs_qm_scall_setqlim(
                 xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft);
         }
 
-        hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
+        hard = (newlim->d_fieldmask & QC_INO_HARD) ?
                 (xfs_qcnt_t) newlim->d_ino_hardlimit :
                         be64_to_cpu(ddq->d_ino_hardlimit);
-        soft = (newlim->d_fieldmask & FS_DQ_ISOFT) ?
+        soft = (newlim->d_fieldmask & QC_INO_SOFT) ?
                 (xfs_qcnt_t) newlim->d_ino_softlimit :
                         be64_to_cpu(ddq->d_ino_softlimit);
         if (hard == 0 || hard >= soft) {
@@ -687,12 +686,12 @@ xfs_qm_scall_setqlim(
         /*
          * Update warnings counter(s) if requested
          */
-        if (newlim->d_fieldmask & FS_DQ_BWARNS)
-                ddq->d_bwarns = cpu_to_be16(newlim->d_bwarns);
-        if (newlim->d_fieldmask & FS_DQ_IWARNS)
-                ddq->d_iwarns = cpu_to_be16(newlim->d_iwarns);
-        if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
-                ddq->d_rtbwarns = cpu_to_be16(newlim->d_rtbwarns);
+        if (newlim->d_fieldmask & QC_SPC_WARNS)
+                ddq->d_bwarns = cpu_to_be16(newlim->d_spc_warns);
+        if (newlim->d_fieldmask & QC_INO_WARNS)
+                ddq->d_iwarns = cpu_to_be16(newlim->d_ino_warns);
+        if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
+                ddq->d_rtbwarns = cpu_to_be16(newlim->d_rt_spc_warns);
 
         if (id == 0) {
                 /*
@@ -702,24 +701,24 @@ xfs_qm_scall_setqlim(
                  * soft and hard limit values (already done, above), and
                  * for warnings.
                  */
-                if (newlim->d_fieldmask & FS_DQ_BTIMER) {
-                        q->qi_btimelimit = newlim->d_btimer;
-                        ddq->d_btimer = cpu_to_be32(newlim->d_btimer);
+                if (newlim->d_fieldmask & QC_SPC_TIMER) {
+                        q->qi_btimelimit = newlim->d_spc_timer;
+                        ddq->d_btimer = cpu_to_be32(newlim->d_spc_timer);
                 }
-                if (newlim->d_fieldmask & FS_DQ_ITIMER) {
-                        q->qi_itimelimit = newlim->d_itimer;
-                        ddq->d_itimer = cpu_to_be32(newlim->d_itimer);
+                if (newlim->d_fieldmask & QC_INO_TIMER) {
+                        q->qi_itimelimit = newlim->d_ino_timer;
+                        ddq->d_itimer = cpu_to_be32(newlim->d_ino_timer);
                 }
-                if (newlim->d_fieldmask & FS_DQ_RTBTIMER) {
-                        q->qi_rtbtimelimit = newlim->d_rtbtimer;
-                        ddq->d_rtbtimer = cpu_to_be32(newlim->d_rtbtimer);
+                if (newlim->d_fieldmask & QC_RT_SPC_TIMER) {
+                        q->qi_rtbtimelimit = newlim->d_rt_spc_timer;
+                        ddq->d_rtbtimer = cpu_to_be32(newlim->d_rt_spc_timer);
                 }
-                if (newlim->d_fieldmask & FS_DQ_BWARNS)
-                        q->qi_bwarnlimit = newlim->d_bwarns;
-                if (newlim->d_fieldmask & FS_DQ_IWARNS)
-                        q->qi_iwarnlimit = newlim->d_iwarns;
-                if (newlim->d_fieldmask & FS_DQ_RTBWARNS)
-                        q->qi_rtbwarnlimit = newlim->d_rtbwarns;
+                if (newlim->d_fieldmask & QC_SPC_WARNS)
+                        q->qi_bwarnlimit = newlim->d_spc_warns;
+                if (newlim->d_fieldmask & QC_INO_WARNS)
+                        q->qi_iwarnlimit = newlim->d_ino_warns;
+                if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
+                        q->qi_rtbwarnlimit = newlim->d_rt_spc_warns;
         } else {
                 /*
                  * If the user is now over quota, start the timelimit.
@@ -824,7 +823,7 @@ xfs_qm_scall_getquota(
         struct xfs_mount        *mp,
         xfs_dqid_t              id,
         uint                    type,
-        struct fs_disk_quota    *dst)
+        struct qc_dqblk         *dst)
 {
         struct xfs_dquot        *dqp;
         int                     error;
@@ -848,28 +847,25 @@ xfs_qm_scall_getquota(
         }
 
         memset(dst, 0, sizeof(*dst));
-        dst->d_version = FS_DQUOT_VERSION;
-        dst->d_flags = xfs_qm_export_qtype_flags(dqp->q_core.d_flags);
-        dst->d_id = be32_to_cpu(dqp->q_core.d_id);
-        dst->d_blk_hardlimit =
-                XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
-        dst->d_blk_softlimit =
-                XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
+        dst->d_spc_hardlimit =
+                XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_hardlimit));
+        dst->d_spc_softlimit =
+                XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_blk_softlimit));
         dst->d_ino_hardlimit = be64_to_cpu(dqp->q_core.d_ino_hardlimit);
         dst->d_ino_softlimit = be64_to_cpu(dqp->q_core.d_ino_softlimit);
-        dst->d_bcount = XFS_FSB_TO_BB(mp, dqp->q_res_bcount);
-        dst->d_icount = dqp->q_res_icount;
-        dst->d_btimer = be32_to_cpu(dqp->q_core.d_btimer);
-        dst->d_itimer = be32_to_cpu(dqp->q_core.d_itimer);
-        dst->d_iwarns = be16_to_cpu(dqp->q_core.d_iwarns);
-        dst->d_bwarns = be16_to_cpu(dqp->q_core.d_bwarns);
-        dst->d_rtb_hardlimit =
-                XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
-        dst->d_rtb_softlimit =
-                XFS_FSB_TO_BB(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
-        dst->d_rtbcount = XFS_FSB_TO_BB(mp, dqp->q_res_rtbcount);
-        dst->d_rtbtimer = be32_to_cpu(dqp->q_core.d_rtbtimer);
-        dst->d_rtbwarns = be16_to_cpu(dqp->q_core.d_rtbwarns);
+        dst->d_space = XFS_FSB_TO_B(mp, dqp->q_res_bcount);
+        dst->d_ino_count = dqp->q_res_icount;
+        dst->d_spc_timer = be32_to_cpu(dqp->q_core.d_btimer);
+        dst->d_ino_timer = be32_to_cpu(dqp->q_core.d_itimer);
+        dst->d_ino_warns = be16_to_cpu(dqp->q_core.d_iwarns);
+        dst->d_spc_warns = be16_to_cpu(dqp->q_core.d_bwarns);
+        dst->d_rt_spc_hardlimit =
+                XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_hardlimit));
+        dst->d_rt_spc_softlimit =
+                XFS_FSB_TO_B(mp, be64_to_cpu(dqp->q_core.d_rtb_softlimit));
+        dst->d_rt_space = XFS_FSB_TO_B(mp, dqp->q_res_rtbcount);
+        dst->d_rt_spc_timer = be32_to_cpu(dqp->q_core.d_rtbtimer);
+        dst->d_rt_spc_warns = be16_to_cpu(dqp->q_core.d_rtbwarns);
 
         /*
          * Internally, we don't reset all the timers when quota enforcement
@@ -882,23 +878,23 @@ xfs_qm_scall_getquota(
              dqp->q_core.d_flags == XFS_DQ_GROUP) ||
             (!XFS_IS_PQUOTA_ENFORCED(mp) &&
              dqp->q_core.d_flags == XFS_DQ_PROJ)) {
-                dst->d_btimer = 0;
-                dst->d_itimer = 0;
-                dst->d_rtbtimer = 0;
+                dst->d_spc_timer = 0;
+                dst->d_ino_timer = 0;
+                dst->d_rt_spc_timer = 0;
         }
 
 #ifdef DEBUG
-        if (((XFS_IS_UQUOTA_ENFORCED(mp) && dst->d_flags == FS_USER_QUOTA) ||
-             (XFS_IS_GQUOTA_ENFORCED(mp) && dst->d_flags == FS_GROUP_QUOTA) ||
-             (XFS_IS_PQUOTA_ENFORCED(mp) && dst->d_flags == FS_PROJ_QUOTA)) &&
-            dst->d_id != 0) {
-                if ((dst->d_bcount > dst->d_blk_softlimit) &&
-                    (dst->d_blk_softlimit > 0)) {
-                        ASSERT(dst->d_btimer != 0);
+        if (((XFS_IS_UQUOTA_ENFORCED(mp) && type == XFS_DQ_USER) ||
+             (XFS_IS_GQUOTA_ENFORCED(mp) && type == XFS_DQ_GROUP) ||
+             (XFS_IS_PQUOTA_ENFORCED(mp) && type == XFS_DQ_PROJ)) &&
+            id != 0) {
+                if ((dst->d_space > dst->d_spc_softlimit) &&
+                    (dst->d_spc_softlimit > 0)) {
+                        ASSERT(dst->d_spc_timer != 0);
                 }
-                if ((dst->d_icount > dst->d_ino_softlimit) &&
+                if ((dst->d_ino_count > dst->d_ino_softlimit) &&
                     (dst->d_ino_softlimit > 0)) {
-                        ASSERT(dst->d_itimer != 0);
+                        ASSERT(dst->d_ino_timer != 0);
                 }
         }
 #endif
@@ -908,26 +904,6 @@ out_put:
 }
 
 STATIC uint
-xfs_qm_export_qtype_flags(
-        uint flags)
-{
-        /*
-         * Can't be more than one, or none.
-         */
-        ASSERT((flags & (FS_PROJ_QUOTA | FS_USER_QUOTA)) !=
-                (FS_PROJ_QUOTA | FS_USER_QUOTA));
-        ASSERT((flags & (FS_PROJ_QUOTA | FS_GROUP_QUOTA)) !=
-                (FS_PROJ_QUOTA | FS_GROUP_QUOTA));
-        ASSERT((flags & (FS_USER_QUOTA | FS_GROUP_QUOTA)) !=
-                (FS_USER_QUOTA | FS_GROUP_QUOTA));
-        ASSERT((flags & (FS_PROJ_QUOTA|FS_USER_QUOTA|FS_GROUP_QUOTA)) != 0);
-
-        return (flags & XFS_DQ_USER) ?
-                FS_USER_QUOTA : (flags & XFS_DQ_PROJ) ?
-                        FS_PROJ_QUOTA : FS_GROUP_QUOTA;
-}
-
-STATIC uint
 xfs_qm_export_flags(
         uint flags)
 {
diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c
index 7542bbeca6a1..801a84c1cdc3 100644
--- a/fs/xfs/xfs_quotaops.c
+++ b/fs/xfs/xfs_quotaops.c
@@ -131,7 +131,7 @@ STATIC int
 xfs_fs_get_dqblk(
         struct super_block      *sb,
         struct kqid             qid,
-        struct fs_disk_quota    *fdq)
+        struct qc_dqblk         *qdq)
 {
         struct xfs_mount        *mp = XFS_M(sb);
 
@@ -141,14 +141,14 @@ xfs_fs_get_dqblk(
                 return -ESRCH;
 
         return xfs_qm_scall_getquota(mp, from_kqid(&init_user_ns, qid),
-                                      xfs_quota_type(qid.type), fdq);
+                                      xfs_quota_type(qid.type), qdq);
 }
 
 STATIC int
 xfs_fs_set_dqblk(
         struct super_block      *sb,
         struct kqid             qid,
-        struct fs_disk_quota    *fdq)
+        struct qc_dqblk         *qdq)
 {
         struct xfs_mount        *mp = XFS_M(sb);
 
@@ -160,7 +160,7 @@ xfs_fs_set_dqblk(
                 return -ESRCH;
 
         return xfs_qm_scall_setqlim(mp, from_kqid(&init_user_ns, qid),
-                                     xfs_quota_type(qid.type), fdq);
+                                     xfs_quota_type(qid.type), qdq);
 }
 
 const struct quotactl_ops xfs_quotactl_operations = {
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 50978b781a19..097d7eb2441e 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -321,6 +321,49 @@ struct dquot_operations {
 
 struct path;
 
+/* Structure for communicating via ->get_dqblk() & ->set_dqblk() */
+struct qc_dqblk {
+        int d_fieldmask;        /* mask of fields to change in ->set_dqblk() */
+        u64 d_spc_hardlimit;    /* absolute limit on used space */
+        u64 d_spc_softlimit;    /* preferred limit on used space */
+        u64 d_ino_hardlimit;    /* maximum # allocated inodes */
+        u64 d_ino_softlimit;    /* preferred inode limit */
+        u64 d_space;            /* Space owned by the user */
+        u64 d_ino_count;        /* # inodes owned by the user */
+        s64 d_ino_timer;        /* zero if within inode limits */
+                                /* if not, we refuse service */
+        s64 d_spc_timer;        /* similar to above; for space */
+        int d_ino_warns;        /* # warnings issued wrt num inodes */
+        int d_spc_warns;        /* # warnings issued wrt used space */
+        u64 d_rt_spc_hardlimit; /* absolute limit on realtime space */
+        u64 d_rt_spc_softlimit; /* preferred limit on RT space */
+        u64 d_rt_space;         /* realtime space owned */
+        s64 d_rt_spc_timer;     /* similar to above; for RT space */
+        int d_rt_spc_warns;     /* # warnings issued wrt RT space */
+};
+
+/* Field specifiers for ->set_dqblk() in struct qc_dqblk */
+#define QC_INO_SOFT     (1<<0)
+#define QC_INO_HARD     (1<<1)
+#define QC_SPC_SOFT     (1<<2)
+#define QC_SPC_HARD     (1<<3)
+#define QC_RT_SPC_SOFT  (1<<4)
+#define QC_RT_SPC_HARD  (1<<5)
+#define QC_LIMIT_MASK (QC_INO_SOFT | QC_INO_HARD | QC_SPC_SOFT | QC_SPC_HARD | \
+                       QC_RT_SPC_SOFT | QC_RT_SPC_HARD)
+#define QC_SPC_TIMER    (1<<6)
+#define QC_INO_TIMER    (1<<7)
+#define QC_RT_SPC_TIMER (1<<8)
+#define QC_TIMER_MASK (QC_SPC_TIMER | QC_INO_TIMER | QC_RT_SPC_TIMER)
+#define QC_SPC_WARNS    (1<<9)
+#define QC_INO_WARNS    (1<<10)
+#define QC_RT_SPC_WARNS (1<<11)
+#define QC_WARNS_MASK (QC_SPC_WARNS | QC_INO_WARNS | QC_RT_SPC_WARNS)
+#define QC_SPACE        (1<<12)
+#define QC_INO_COUNT    (1<<13)
+#define QC_RT_SPACE     (1<<14)
+#define QC_ACCT_MASK (QC_SPACE | QC_INO_COUNT | QC_RT_SPACE)
+
 /* Operations handling requests from userspace */
 struct quotactl_ops {
         int (*quota_on)(struct super_block *, int, int, struct path *);
@@ -329,8 +372,8 @@ struct quotactl_ops {
         int (*quota_sync)(struct super_block *, int);
         int (*get_info)(struct super_block *, int, struct if_dqinfo *);
         int (*set_info)(struct super_block *, int, struct if_dqinfo *);
-        int (*get_dqblk)(struct super_block *, struct kqid, struct fs_disk_quota *);
-        int (*set_dqblk)(struct super_block *, struct kqid, struct fs_disk_quota *);
+        int (*get_dqblk)(struct super_block *, struct kqid, struct qc_dqblk *);
+        int (*set_dqblk)(struct super_block *, struct kqid, struct qc_dqblk *);
         int (*get_xstate)(struct super_block *, struct fs_quota_stat *);
         int (*set_xstate)(struct super_block *, unsigned int, int);
         int (*get_xstatev)(struct super_block *, struct fs_quota_statv *);
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index f23538a6e411..29e3455f7d41 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -98,9 +98,9 @@ int dquot_quota_sync(struct super_block *sb, int type);
 int dquot_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
 int dquot_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
 int dquot_get_dqblk(struct super_block *sb, struct kqid id,
-                struct fs_disk_quota *di);
+                struct qc_dqblk *di);
 int dquot_set_dqblk(struct super_block *sb, struct kqid id,
-                struct fs_disk_quota *di);
+                struct qc_dqblk *di);
 
 int __dquot_transfer(struct inode *inode, struct dquot **transfer_to);
 int dquot_transfer(struct inode *inode, struct iattr *iattr);