Re: [PATCH 0/11] Per-bdi writeback flusher threads v9

[Jens Axboe <jens.axboe@oracle.com>]

On Wed, Jun 03 2009, Artem Bityutskiy wrote:
> Jens Axboe wrote:
>>> Just to make sure I understood you correctly. I assume my original
>>> patch is fine (because there is bdi_destroy()) and merge it to
>>> ubifs tree.
>>
>> It needs to be:
>>
>>         err = bdi_register(&c->bdi, NULL, "ubifs");
>>         if (err)
>>                 goto out_bdi;
>>
>> so you hit the bdi_destroy() for that failure, not goto out_close;
>> Otherwise it was fine.
>
> Ah, I see. Rather non-typical convention though. I expected
> bdi_register() to clean-up stuff in case of failure. Isn't
> it a better interface?

You already did a bdi_init() at that point. bdi_destroy() must be used
to clean up after both bdi_init() and/or bdi_register().

-- 
Jens Axboe