It is unnecessary to initialize the EXPERIMENTAL nvm-pages allocator
when CONFIG_BCACHE_NVM_PAGES is not configured. This patch uses
"#ifdef CONFIG_BCACHE_NVM_PAGES" to wrap bch_nvm_init() and
bch_nvm_exit(), and only calls them when bch_nvm_exit is configured.
Signed-off-by: Coly Li <colyli@xxxxxxx>
Cc: Jianpeng Ma <jianpeng.ma@xxxxxxxxx>
Cc: Qiaowei Ren <qiaowei.ren@xxxxxxxxx>
---
drivers/md/bcache/super.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 61fd5802a627..c273eeef0d38 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -2845,7 +2845,9 @@ static void bcache_exit(void)
{
bch_debug_exit();
bch_request_exit();
+#ifdef CONFIG_BCACHE_NVM_PAGES
bch_nvm_exit();
+#endif
if (bcache_kobj)
kobject_put(bcache_kobj);
if (bcache_wq)
@@ -2947,7 +2949,9 @@ static int __init bcache_init(void)
bch_debug_init();
closure_debug_init();
+#ifdef CONFIG_BCACHE_NVM_PAGES
bch_nvm_init();
+#endif
bcache_is_reboot = false;
--
2.26.2
