4 files changed, 17 insertions, 4 deletions
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 1deb8810d7c7..324d29ecbe0b 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -49,9 +49,16 @@ static int ceph_statfs(struct dentry *dentry, struct kstatfs *buf)
 	struct ceph_statfs st;
 	u64 fsid;
 	int err;
+	u64 data_pool;
+
+	if (fsc->mdsc->mdsmap->m_num_data_pg_pools == 1) {
+		data_pool = fsc->mdsc->mdsmap->m_data_pg_pools[0];
+	} else {
+		data_pool = CEPH_NOPOOL;
+	}
 
 	dout("statfs\n");
-	err = ceph_monc_do_statfs(&fsc->client->monc, &st);
+	err = ceph_monc_do_statfs(&fsc->client->monc, data_pool, &st);
 	if (err < 0)
 		return err;
 
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index d1642a4b4c5e..b422170b791a 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -167,6 +167,8 @@ struct ceph_mon_request_header {
 struct ceph_mon_statfs {
 	struct ceph_mon_request_header monhdr;
 	struct ceph_fsid fsid;
+	__u8 contains_data_pool;
+	__le64 data_pool;
 } __attribute__ ((packed));
 
 struct ceph_statfs {
diff --git a/include/linux/ceph/mon_client.h b/include/linux/ceph/mon_client.h
index d5a3ecea578d..0fa990bf867a 100644
--- a/include/linux/ceph/mon_client.h
+++ b/include/linux/ceph/mon_client.h
@@ -133,8 +133,8 @@ void ceph_monc_renew_subs(struct ceph_mon_client *monc);
 extern int ceph_monc_wait_osdmap(struct ceph_mon_client *monc, u32 epoch,
 				 unsigned long timeout);
 
-extern int ceph_monc_do_statfs(struct ceph_mon_client *monc,
-			       struct ceph_statfs *buf);
+int ceph_monc_do_statfs(struct ceph_mon_client *monc, u64 data_pool,
+			struct ceph_statfs *buf);
 
 int ceph_monc_get_version(struct ceph_mon_client *monc, const char *what,
 			  u64 *newest);
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 875675765531..63edc6e5f026 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -676,7 +676,8 @@ bad:
 /*
  * Do a synchronous statfs().
  */
-int ceph_monc_do_statfs(struct ceph_mon_client *monc, struct ceph_statfs *buf)
+int ceph_monc_do_statfs(struct ceph_mon_client *monc, u64 data_pool,
+			struct ceph_statfs *buf)
 {
 	struct ceph_mon_generic_request *req;
 	struct ceph_mon_statfs *h;
@@ -696,6 +697,7 @@ int ceph_monc_do_statfs(struct ceph_mon_client *monc, struct ceph_statfs *buf)
 		goto out;
 
 	req->u.st = buf;
+	req->request->hdr.version = cpu_to_le16(2);
 
 	mutex_lock(&monc->mutex);
 	register_generic_request(req);
@@ -705,6 +707,8 @@ int ceph_monc_do_statfs(struct ceph_mon_client *monc, struct ceph_statfs *buf)
 	h->monhdr.session_mon = cpu_to_le16(-1);
 	h->monhdr.session_mon_tid = 0;
 	h->fsid = monc->monmap->fsid;
+	h->contains_data_pool = (data_pool != CEPH_NOPOOL);
+	h->data_pool = cpu_to_le64(data_pool);
 	send_generic_request(monc, req);
 	mutex_unlock(&monc->mutex);