# Re: \[PATCHv6 3/5\] ext4: remove unnecessary superblock dirtying

- From: Artem Bityutskiy \<dedekind1@gmail.com\>
- Date: 2012-07-11 10:20:04 
- List: linux-ext4
- Page: https://ratatoskr.run/linux-ext4/2012/07/65653
- Thread: https://ratatoskr.run/linux-fsdevel/2012/07/65643/t.md

```text
On Wed, 2012-07-11 at 12:11 +0200, Jan Kara wrote:
> > > So case 2.b is a bit controversial, but I think it is acceptable. After all, by
> > > enabling checksumming we already sign up for paying the price of calculating
> > > it. The way to improve checksumming performance globally would be to calculate
> > > it just before sending buffers to the I/O queue. We'd need some kind of
> > > call-back which could be registered by file-systems.
>   Actually, the most common case of adding orphan inode used
> ext4_handle_dirty_super_now() so for that case there is no difference. And
> other cases are so rare it really does not matter... So there shouldn't be
> any measurable difference.

Thank you, I'll take a closer look and possibly change the commit
message.

-- 
Best Regards,
Artem Bityutskiy
```

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