From 00d1d6f507f5c95fa5438940bb57809ab751bdc9 Mon Sep 17 00:00:00 2001
From: Venky Shankar <vshankar@redhat.com>
Date: Tue, 18 Mar 2025 09:07:38 +0000
Subject: [PATCH] Revert "mds: Store list of hardlinks on the inode of primary
 link"

This reverts commit 7822a588e8ef9f61bc37b5d48ff323194ad57f6d.

Signed-off-by: Venky Shankar <vshankar@redhat.com>
---
 src/include/cephfs/dump.h  |  5 -----
 src/include/cephfs/json.h  |  1 -
 src/include/cephfs/types.h | 13 +------------
 3 files changed, 1 insertion(+), 18 deletions(-)

diff --git a/src/include/cephfs/dump.h b/src/include/cephfs/dump.h
index 1baceff59ef..b87a2f7af88 100644
--- a/src/include/cephfs/dump.h
+++ b/src/include/cephfs/dump.h
@@ -96,11 +96,6 @@ void inode_t<Allocator>::dump(ceph::Formatter *f) const
   f->dump_stream("last_scrub_stamp") << last_scrub_stamp;
   f->dump_unsigned("last_scrub_version", last_scrub_version);
   f->dump_unsigned("remote_ino", remote_ino);
-  f->open_array_section("referent_inodes");
-  for (const auto &ri : referent_inodes) {
-    f->dump_unsigned("referent_inode", ri);
-  }
-  f->close_section();
 }
 
 inline void vinodeno_t::dump(ceph::Formatter *f) const {
diff --git a/src/include/cephfs/json.h b/src/include/cephfs/json.h
index c0720ffdce8..b9936292ebb 100644
--- a/src/include/cephfs/json.h
+++ b/src/include/cephfs/json.h
@@ -76,5 +76,4 @@ void inode_t<Allocator>::decode_json(JSONObj *obj)
   JSONDecoder::decode_json("last_scrub_stamp", last_scrub_stamp, obj, true);
   JSONDecoder::decode_json("last_scrub_version", last_scrub_version, obj, true);
   JSONDecoder::decode_json("remote_ino", remote_ino.val, obj, true);
-  JSONDecoder::decode_json("referent_inodes", referent_inodes, obj, true);
 }
diff --git a/src/include/cephfs/types.h b/src/include/cephfs/types.h
index 9d86eb4a2de..de45ca2aa6b 100644
--- a/src/include/cephfs/types.h
+++ b/src/include/cephfs/types.h
@@ -864,12 +864,6 @@ struct inode_t {
     optmetadata.del_opt(optmetadata_singleton_server_t::kind_t::CHARMAP);
   }
 
-  const std::vector<uint64_t>& get_referent_inodes() { return referent_inodes; }
-  void add_referent_ino(inodeno_t ref_ino) { referent_inodes.push_back(ref_ino); }
-  void remove_referent_ino(inodeno_t ref_ino) {
-    referent_inodes.erase(remove(referent_inodes.begin(), referent_inodes.end(), ref_ino), referent_inodes.end());
-  }
-
   void encode(ceph::buffer::list &bl, uint64_t features) const;
   void decode(ceph::buffer::list::const_iterator& bl);
   void dump(ceph::Formatter *f) const;
@@ -975,7 +969,6 @@ struct inode_t {
   optmetadata_multiton<optmetadata_singleton_server_t,Allocator> optmetadata;
 
   inodeno_t remote_ino = 0; // referent inode - remote inode link
-  std::vector<uint64_t> referent_inodes;
 
 private:
   bool older_is_consistent(const inode_t &other) const;
@@ -1060,8 +1053,6 @@ void inode_t<Allocator>::encode(ceph::buffer::list &bl, uint64_t features) const
   encode(optmetadata, bl, features);
 
   encode(remote_ino, bl);
-  encode(referent_inodes, bl);
-
   ENCODE_FINISH(bl);
 }
 
@@ -1186,7 +1177,6 @@ void inode_t<Allocator>::decode(ceph::buffer::list::const_iterator &p)
 
   if (struct_v >= 21) {
     decode(remote_ino, p);
-    decode(referent_inodes, p);
   }
   DECODE_FINISH(p);
 }
@@ -1240,8 +1230,7 @@ int inode_t<Allocator>::compare(const inode_t<Allocator> &other, bool *divergent
 	fscrypt_file != other.fscrypt_file ||
 	fscrypt_last_block != other.fscrypt_last_block ||
 	optmetadata != other.optmetadata ||
-	remote_ino != other.remote_ino ||
-	referent_inodes != other.referent_inodes) {
+	remote_ino != other.remote_ino) {
       *divergent = true;
     }
     return 0;
-- 
2.47.3