# Re: \[PATCH 1/9\] fs: add fcntl() interface for setting/getting write life time hints

- From: Christoph Hellwig \<hch@infradead.org\>
- Date: 2017-06-26 09:51:50 
- List: linux-block
- Page: https://ratatoskr.run/linux-block/2017/06/122155
- Thread: https://ratatoskr.run/linux-fsdevel/2017/06/122395/t.md

```text
Please document the userspace API (added linux-api and linux-man
to CC for sugestions), especially including the odd effects of the
per-inode settings.

Also I would highly recommend to use different fcntl commands
for the file vs inode hints to avoid any strange behavior.
```