Re: [PATCH 1/9] swap_info: private to swapfile.c

[Nigel Cunningham]

Hi Hugh.

Hugh Dickins wrote:
> The swap_info_struct is mostly private to mm/swapfile.c, with only
> one other in-tree user: get_swap_bio().  Adjust its interface to
> map_swap_page(), so that we can then remove get_swap_info_struct().
> 
> But there is a popular user out-of-tree, TuxOnIce: so leave the
> declaration of swap_info_struct in linux/swap.h.

Sorry for the delay in replying.

I don't mind if you don't leave swap_info_struct in
include/linux/swap.h. I'm currently reworking my swap support anyway,
adding support for honouring the priority field. I've also recently
learned that under some circumstances, allocating all available swap can
take quite a while (I have a user who is hibernating with 32GB of RAM!),
so I've been thinking about what I can do to optimise that.

Regards,

Nigel
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