Re: [PATCH] btrfs: zoned: don't submit orphaned extent buffers

On 7/9/26 12:38 PM, Johannes Thumshirn wrote:
>>>   @@ -2420,7 +2432,7 @@ int btree_writepages(struct address_space 
>>> *mapping, struct writeback_control *wb
>>>                   btrfs_schedule_zone_finish_bg(ctx.zoned_bg, eb);
>>>                   ctx.zoned_bg->meta_write_pointer += eb->len;
>>>               }
>>> -            write_one_eb(eb, wbc);
>>> +            write_one_eb(eb, wbc, submit);
>>
>> I understand this is the minimal fix, but I can't help but wondering, 
>> would it be more instinctual to release all ebs inside a zoned 
>> metadata bg when freeing the bg?
>
OK, after reading your mail again, I think you're right. Let me have a 
look at your proposal.


> Yes but quite frankly I'm still hunting the root cause.
>
> One thing I think I've found so far is, we're re-dirtying a eb, then 
> relocation GC's the block-group, then writeback comes along trying to 
> submit these ebs but the bg is gone.
>
> This analysis could be totally bogus of cause because I missed something.