Use kill_anon_super() instead of generic_shutdown_super() since the
mount() in erofs fscache mode uses get_tree_nodev() and associated
anon bdev needs to be freed.

Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com>
---
 fs/erofs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 3173debeaa5a..9716d355a63e 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -879,7 +879,7 @@ static void erofs_kill_sb(struct super_block *sb)
 	WARN_ON(sb->s_magic != EROFS_SUPER_MAGIC);
 
 	if (erofs_is_fscache_mode(sb))
-		generic_shutdown_super(sb);
+		kill_anon_super(sb);
 	else
 		kill_block_super(sb);
 
-- 
2.20.1

On 9/14/22 6:50 PM, Jia Zhu wrote:
> Use kill_anon_super() instead of generic_shutdown_super() since the
> mount() in erofs fscache mode uses get_tree_nodev() and associated
> anon bdev needs to be freed.
> 
> Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>

Thanks. You're welcome to use "Suggested-by" in this case. The same with
patch 2.

> Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com>
> ---
>  fs/erofs/super.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/erofs/super.c b/fs/erofs/super.c
> index 3173debeaa5a..9716d355a63e 100644
> --- a/fs/erofs/super.c
> +++ b/fs/erofs/super.c
> @@ -879,7 +879,7 @@ static void erofs_kill_sb(struct super_block *sb)
>  	WARN_ON(sb->s_magic != EROFS_SUPER_MAGIC);
>  
>  	if (erofs_is_fscache_mode(sb))
> -		generic_shutdown_super(sb);
> +		kill_anon_super(sb);
>  	else
>  		kill_block_super(sb);
>  

Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>

-- 
Thanks,
Jingbo

在 2022/9/15 10:28, JeffleXu 写道:
> 
> 
> On 9/14/22 6:50 PM, Jia Zhu wrote:
>> Use kill_anon_super() instead of generic_shutdown_super() since the
>> mount() in erofs fscache mode uses get_tree_nodev() and associated
>> anon bdev needs to be freed.
>>
>> Signed-off-by: Jingbo Xu <jefflexu@linux.alibaba.com>
> 
> Thanks. You're welcome to use "Suggested-by" in this case. The same with
> patch 2.
> 
OK, thanks for your suggestion and review.
>> Signed-off-by: Jia Zhu <zhujia.zj@bytedance.com>
>> ---
>>   fs/erofs/super.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/fs/erofs/super.c b/fs/erofs/super.c
>> index 3173debeaa5a..9716d355a63e 100644
>> --- a/fs/erofs/super.c
>> +++ b/fs/erofs/super.c
>> @@ -879,7 +879,7 @@ static void erofs_kill_sb(struct super_block *sb)
>>   	WARN_ON(sb->s_magic != EROFS_SUPER_MAGIC);
>>   
>>   	if (erofs_is_fscache_mode(sb))
>> -		generic_shutdown_super(sb);
>> +		kill_anon_super(sb);
>>   	else
>>   		kill_block_super(sb);
>>   
> 
> Reviewed-by: Jingbo Xu <jefflexu@linux.alibaba.com>
>