Re: [patch 2/13] remove pages from the LRU in __free_pages_ok()

[Linus Torvalds]

On Sun, 28 Jul 2002, Andrew Morton wrote:
>
> OK.  This means that put_page() against userspace-mapped pages
> is to be avoided.

Yes. I think we've gotten most of it, and I just fixed the
access_process_vm() thing in my tree.

> Did an audit.  What on earth is drivers/scsi/sg.c:sg_rb_correct4mmap()
> doing?

I don't know. The code looks fundamentally broken (why do a
"put_page_testzero()" if you don't actually test the return value?
Somebody is confused).

		Linus