diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index d165de607d17..185f09f327c0 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -995,7 +995,8 @@ struct xfs_rtgroup_geometry {
 	__u32 rg_sick;		/* o: sick things in ag */
 	__u32 rg_checked;	/* o: checked metadata in ag */
 	__u32 rg_flags;		/* i/o: flags for this ag */
-	__u32 rg_reserved[27];	/* o: zero */
+	__u32 rg_writepointer;  /* o: write pointer block offset for zoned */
+	__u32 rg_reserved[26];	/* o: zero */
 };
 #define XFS_RTGROUP_GEOM_SICK_SUPER	(1U << 0)  /* superblock */
 #define XFS_RTGROUP_GEOM_SICK_BITMAP	(1U << 1)  /* rtbitmap */
@@ -1003,6 +1004,8 @@ struct xfs_rtgroup_geometry {
 #define XFS_RTGROUP_GEOM_SICK_RMAPBT	(1U << 3)  /* reverse mappings */
 #define XFS_RTGROUP_GEOM_SICK_REFCNTBT	(1U << 4)  /* reference counts */
 
+#define XFS_RTGROUP_GEOM_WRITEPOINTER  (1U << 0)  /* write pointer */
+
 /* Health monitor event domains */
 
 /* affects the whole fs */
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index facffdc8dca8..46e234863644 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -37,12 +37,15 @@
 #include "xfs_ioctl.h"
 #include "xfs_xattr.h"
 #include "xfs_rtbitmap.h"
+#include "xfs_rtrmap_btree.h"
 #include "xfs_file.h"
 #include "xfs_exchrange.h"
 #include "xfs_handle.h"
 #include "xfs_rtgroup.h"
 #include "xfs_healthmon.h"
 #include "xfs_verify_media.h"
+#include "xfs_zone_priv.h"
+#include "xfs_zone_alloc.h"
 
 #include <linux/mount.h>
 #include <linux/fileattr.h>
@@ -413,6 +416,7 @@ xfs_ioc_rtgroup_geometry(
 {
 	struct xfs_rtgroup	*rtg;
 	struct xfs_rtgroup_geometry rgeo;
+	xfs_rgblock_t		highest_rgbno;
 	int			error;
 
 	if (copy_from_user(&rgeo, arg, sizeof(rgeo)))
@@ -433,6 +437,21 @@ xfs_ioc_rtgroup_geometry(
 	if (error)
 		return error;
 
+	if (xfs_has_zoned(mp)) {
+		xfs_rtgroup_lock(rtg, XFS_RTGLOCK_RMAP);
+		if (rtg->rtg_open_zone) {
+			rgeo.rg_writepointer = rtg->rtg_open_zone->oz_allocated;
+		} else {
+			highest_rgbno = xfs_rtrmap_highest_rgbno(rtg);
+			if (highest_rgbno == NULLRGBLOCK)
+				rgeo.rg_writepointer = 0;
+			else
+				rgeo.rg_writepointer = highest_rgbno + 1;
+		}
+		xfs_rtgroup_unlock(rtg, XFS_RTGLOCK_RMAP);
+		rgeo.rg_flags |= XFS_RTGROUP_GEOM_WRITEPOINTER;
+	}
+
 	if (copy_to_user(arg, &rgeo, sizeof(rgeo)))
 		return -EFAULT;
 	return 0;