1 files changed, 27 insertions, 14 deletions

diff --git a/fs/xfs/xfs_qm_bhv.c b/fs/xfs/xfs_qm_bhv.c
index b77673dd0558..26b2c449f3c6 100644
--- a/fs/xfs/xfs_qm_bhv.c
+++ b/fs/xfs/xfs_qm_bhv.c
@@ -19,28 +19,41 @@
 STATIC void
 xfs_fill_statvfs_from_dquot(
 	struct kstatfs		*statp,
+	struct xfs_inode	*ip,
 	struct xfs_dquot	*dqp)
 {
+	struct xfs_dquot_res	*blkres = &dqp->q_blk;
 	uint64_t		limit;
 
-	limit = dqp->q_blk.softlimit ?
-		dqp->q_blk.softlimit :
-		dqp->q_blk.hardlimit;
-	if (limit && statp->f_blocks > limit) {
-		statp->f_blocks = limit;
-		statp->f_bfree = statp->f_bavail =
-			(statp->f_blocks > dqp->q_blk.reserved) ?
-			 (statp->f_blocks - dqp->q_blk.reserved) : 0;
+	if (XFS_IS_REALTIME_MOUNT(ip->i_mount) &&
+	    (ip->i_diflags & (XFS_DIFLAG_RTINHERIT | XFS_DIFLAG_REALTIME)))
+		blkres = &dqp->q_rtb;
+
+	limit = blkres->softlimit ?
+		blkres->softlimit :
+		blkres->hardlimit;
+	if (limit) {
+		uint64_t	remaining = 0;
+
+		if (limit > blkres->reserved)
+			remaining = limit - blkres->reserved;
+
+		statp->f_blocks = min(statp->f_blocks, limit);
+		statp->f_bfree = min(statp->f_bfree, remaining);
+		statp->f_bavail = min(statp->f_bavail, remaining);
 	}
 
 	limit = dqp->q_ino.softlimit ?
 		dqp->q_ino.softlimit :
 		dqp->q_ino.hardlimit;
-	if (limit && statp->f_files > limit) {
-		statp->f_files = limit;
-		statp->f_ffree =
-			(statp->f_files > dqp->q_ino.reserved) ?
-			 (statp->f_files - dqp->q_ino.reserved) : 0;
+	if (limit) {
+		uint64_t	remaining = 0;
+
+		if (limit > dqp->q_ino.reserved)
+			remaining = limit - dqp->q_ino.reserved;
+
+		statp->f_files = min(statp->f_files, limit);
+		statp->f_ffree = min(statp->f_ffree, remaining);
 	}
 }
 
@@ -61,7 +74,7 @@ xfs_qm_statvfs(
 	struct xfs_dquot	*dqp;
 
 	if (!xfs_qm_dqget(mp, ip->i_projid, XFS_DQTYPE_PROJ, false, &dqp)) {
-		xfs_fill_statvfs_from_dquot(statp, dqp);
+		xfs_fill_statvfs_from_dquot(statp, ip, dqp);
 		xfs_qm_dqput(dqp);
 	}
 }