From: wanglinke <wanglinke@cmss.chinamobile.com>
Date: Wed, 27 Mar 2024 09:51:04 +0000 (+0800)
Subject: os/bluestore: fix the problem that estimate the log size incorrectly
X-Git-Tag: v20.0.0~2005^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=61058bf102f9ed7dbe2e601f5a1243be5149df06;p=ceph.git

os/bluestore: fix the problem that estimate the log size incorrectly

In BlueFS::_estimate_log_size_N, the total size of
the dir was calculated incorrectly.

Fixes: https://tracker.ceph.com/issues/65176
co-author: Jrchyang Yu <yuzhiqiang_yewu@cmss.chinamobile.com>
Signed-off-by: Wang Linke <wanglinke_yewu@cmss.chinamobile.com>
---

diff --git a/src/os/bluestore/BlueFS.cc b/src/os/bluestore/BlueFS.cc
index a8b1fb25ee8..9f419c19585 100644
--- a/src/os/bluestore/BlueFS.cc
+++ b/src/os/bluestore/BlueFS.cc
@@ -2429,7 +2429,7 @@ uint64_t BlueFS::_estimate_log_size_N()
   int avg_file_size = 12;
   uint64_t size = 4096 * 2;
   size += nodes.file_map.size() * (1 + sizeof(bluefs_fnode_t));
-  size += nodes.dir_map.size() + (1 + avg_dir_size);
+  size += nodes.dir_map.size() * (1 + avg_dir_size);
   size += nodes.file_map.size() * (1 + avg_dir_size + avg_file_size);
   return round_up_to(size, super.block_size);
 }