diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index 5376dd406ba2c099e23230014b1b23cbb832f6ad..ce6506adab7b715158418d99c1ff55011cd3bf9e 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -55,7 +55,6 @@ struct xfs_trans;
 typedef struct xfs_dqtrx {
 	struct xfs_dquot *qt_dquot;	  /* the dquot this refers to */
 	ulong		qt_blk_res;	  /* blks reserved on a dquot */
-	ulong		qt_blk_res_used;  /* blks used from the reservation */
 	ulong		qt_ino_res;	  /* inode reserved on a dquot */
 	ulong		qt_ino_res_used;  /* inodes used from the reservation */
 	long		qt_bcount_delta;  /* dquot blk count changes */
diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index 76a16df55ef72ef11274cd2e25dc07bc8326dfdd..58c0c6b2f4ed2fb7343070f4e973e2451eba1246 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -92,6 +92,7 @@ xfs_trans_dup_dqinfo(
 	xfs_dqtrx_t	*oq, *nq;
 	int		i,j;
 	xfs_dqtrx_t	*oqa, *nqa;
+	ulong		blk_res_used;
 
 	if (!otp->t_dqinfo)
 		return;
@@ -109,11 +110,16 @@ xfs_trans_dup_dqinfo(
 		oqa = otp->t_dqinfo->dqs[j];
 		nqa = ntp->t_dqinfo->dqs[j];
 		for (i = 0; i < XFS_QM_TRANS_MAXDQS; i++) {
+			blk_res_used = 0;
+
 			if (oqa[i].qt_dquot == NULL)
 				break;
 			oq = &oqa[i];
 			nq = &nqa[i];
 
+			if (oq->qt_blk_res && oq->qt_bcount_delta > 0)
+				blk_res_used = oq->qt_bcount_delta;
+
 			nq->qt_dquot = oq->qt_dquot;
 			nq->qt_bcount_delta = nq->qt_icount_delta = 0;
 			nq->qt_rtbcount_delta = 0;
@@ -121,8 +127,8 @@ xfs_trans_dup_dqinfo(
 			/*
 			 * Transfer whatever is left of the reservations.
 			 */
-			nq->qt_blk_res = oq->qt_blk_res - oq->qt_blk_res_used;
-			oq->qt_blk_res = oq->qt_blk_res_used;
+			nq->qt_blk_res = oq->qt_blk_res - blk_res_used;
+			oq->qt_blk_res = blk_res_used;
 
 			nq->qt_rtblk_res = oq->qt_rtblk_res -
 				oq->qt_rtblk_res_used;
@@ -239,10 +245,6 @@ xfs_trans_mod_dquot(
 		 * disk blocks used.
 		 */
 	      case XFS_TRANS_DQ_BCOUNT:
-		if (qtrx->qt_blk_res && delta > 0) {
-			qtrx->qt_blk_res_used += (ulong)delta;
-			ASSERT(qtrx->qt_blk_res >= qtrx->qt_blk_res_used);
-		}
 		qtrx->qt_bcount_delta += delta;
 		break;
 
@@ -423,15 +425,19 @@ xfs_trans_apply_dquot_deltas(
 			 * reservation that a transaction structure knows of.
 			 */
 			if (qtrx->qt_blk_res != 0) {
-				if (qtrx->qt_blk_res != qtrx->qt_blk_res_used) {
-					if (qtrx->qt_blk_res >
-					    qtrx->qt_blk_res_used)
+				ulong blk_res_used = 0;
+
+				if (qtrx->qt_bcount_delta > 0)
+					blk_res_used = qtrx->qt_bcount_delta;
+
+				if (qtrx->qt_blk_res != blk_res_used) {
+					if (qtrx->qt_blk_res > blk_res_used)
 						dqp->q_res_bcount -= (xfs_qcnt_t)
 							(qtrx->qt_blk_res -
-							 qtrx->qt_blk_res_used);
+							 blk_res_used);
 					else
 						dqp->q_res_bcount -= (xfs_qcnt_t)
-							(qtrx->qt_blk_res_used -
+							(blk_res_used -
 							 qtrx->qt_blk_res);
 				}
 			} else {