Re: arca-vm-8 [Re: [patch] arca-vm-6, killed kswapd [Re: [patch] new-vm , improvement , [Re: 2.2.0 Bug summary]]]

Andrea Arcangeli
1999-01-09T02:35:43Z

Hi Stephen!

On Sat, 9 Jan 1999, Stephen C. Tweedie wrote:

> deadlock. The easiest way I can see of achieving something like this is
> to set current->flags |= PF_MEMALLOC while we hold the superblock lock,

Hmm, we must not avoid shrink_mmap() to run. So I see plain wrong to set
the PF_MEMALLOC before call __get_free_pages(). Very cleaner to use
GFP_ATOMIC to achieve the same effect btw ;).

Now I am too tired to follow the other part of your email (I'll read
tomorrow, now it's time to sleep for me... ;).

Forget to tell, did you have comments about the FreeAfter() stuff? It made
sense to me (looking at page_io if I remeber well) but I have not
carefully reread it yet after Linus's comments on it.

Andrea Arcangeli