From 82d7d2094116b69f861728028de88d5736002126 Mon Sep 17 00:00:00 2001
From: Xiubo Li <xiubli@redhat.com>
Date: Tue, 5 Jul 2022 11:47:16 +0800
Subject: [PATCH] ceph_fs.h: switch to use its own encode/decode helpers

Prepare switching num_retry and num_fwd to __le32.

Fixes: https://tracker.ceph.com/issues/57854
Signed-off-by: Xiubo Li <xiubli@redhat.com>
---
 src/include/ceph_fs.h | 34 ++++++++++++++++++++++++++++++++++
 src/include/types.h   |  1 -
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/src/include/ceph_fs.h b/src/include/ceph_fs.h
index c83ffa4eec63e..f2d8a2d242e83 100644
--- a/src/include/ceph_fs.h
+++ b/src/include/ceph_fs.h
@@ -14,6 +14,8 @@
 
 #include "msgr.h"
 #include "rados.h"
+#include "include/encoding.h"
+#include "include/denc.h"
 
 /*
  * The data structures defined here are shared between Linux kernel and
@@ -639,6 +641,38 @@ struct ceph_mds_request_head {
 	union ceph_mds_request_args args;
 } __attribute__ ((packed));
 
+void inline encode(const struct ceph_mds_request_head& h, ceph::buffer::list& bl) {
+  using ceph::encode;
+  encode(h.version, bl);
+  encode(h.oldest_client_tid, bl);
+  encode(h.mdsmap_epoch, bl);
+  encode(h.flags, bl);
+  encode(h.num_retry, bl);
+  encode(h.num_fwd, bl);
+  encode(h.num_releases, bl);
+  encode(h.op, bl);
+  encode(h.caller_uid, bl);
+  encode(h.caller_gid, bl);
+  encode(h.ino, bl);
+  bl.append((char*)&h.args, sizeof(h.args));
+}
+
+void inline decode(struct ceph_mds_request_head& h, ceph::buffer::list::const_iterator& bl) {
+  using ceph::decode;
+  decode(h.version, bl);
+  decode(h.oldest_client_tid, bl);
+  decode(h.mdsmap_epoch, bl);
+  decode(h.flags, bl);
+  decode(h.num_retry, bl);
+  decode(h.num_fwd, bl);
+  decode(h.num_releases, bl);
+  decode(h.op, bl);
+  decode(h.caller_uid, bl);
+  decode(h.caller_gid, bl);
+  decode(h.ino, bl);
+  bl.copy(sizeof(h.args), (char*)&(h.args));
+}
+
 /* cap/lease release record */
 struct ceph_mds_request_release {
 	__le64 ino, cap_id;            /* ino and unique cap id */
diff --git a/src/include/types.h b/src/include/types.h
index 12a0b2a6dbff8..a76360db4035a 100644
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -320,7 +320,6 @@ WRITE_RAW_ENCODER(ceph_file_layout)
 WRITE_RAW_ENCODER(ceph_dir_layout)
 WRITE_RAW_ENCODER(ceph_mds_session_head)
 WRITE_RAW_ENCODER(ceph_mds_request_head_legacy)
-WRITE_RAW_ENCODER(ceph_mds_request_head)
 WRITE_RAW_ENCODER(ceph_mds_request_release)
 WRITE_RAW_ENCODER(ceph_filelock)
 WRITE_RAW_ENCODER(ceph_mds_caps_head)
-- 
2.39.5