From 4364ebdfa4a218a61528f7579e45233cc4725326 Mon Sep 17 00:00:00 2001
From: jrchyang <yujrchyang@outlook.com>
Date: Tue, 24 Oct 2023 10:03:09 +0800
Subject: [PATCH] os/bluestore: fix crash caused by dividing by 0

In Allocator::create() => ZonedAllocator::ZonedAllocator()
num_zones is calculated by size / zone_size,
causing a crash when zone_size is set to 0

Signed-off-by: Jrchyang Yu <yuzhiqiang_yewu@cmss.chinamobile.com>
---
 src/os/bluestore/BlueStore.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index ec03fcde14aea..d031b2e4c0104 100644
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -6890,7 +6890,7 @@ int BlueStore::_create_alloc()
       cct, cct->_conf->bluestore_allocator,
       bdev->get_conventional_region_size(),
       alloc_size,
-      0, 0,
+      zone_size, 0,
       "zoned_block");
     if (!a) {
       lderr(cct) << __func__ << " failed to create " << cct->_conf->bluestore_allocator
-- 
2.39.5