Re: Request for export of truncate_complete_page

[Andrew Morton]

Oleg Drokin <green@xxxxxxxxxxxxxx> wrote:
>
> Hello!
> 
>    Can I ask for truncate_complete_page() to be exported?
>    For Lustre filesystem it is necessary to poke out pages in the middle of
>    a file, but truncate_inode_pages() is not very suitable, because we
>    poke those pages one at a time when locks on those pages are cancelled, but
>    we cannot kill entire set of pages as a group, because there might be some
>    other lock that covers a subset of those pages, so we still need to iterate
>    through all of them, and while we are at it, it is easier to kill pages
>    as we check them one by one.
> 

Isn't truncate_inode_pages_range() suitable?

> +EXPORT_SYMBOL(truncate_complete_page);

_GPL would be nicer.   Plus a comment to keep people from "cleaning it up".

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