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Re: [PATCH] zram: revive swap_slot_free_notify

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On Fri, 18 Mar 2016 16:58:31 +0900 Minchan Kim <minchan@kernel.org> wrote:

> <b430e9d1c6d4> "remove compressed copy from zram in-memory"
> applied swap_slot_free_notify call in *end_swap_bio_read* to
> remove duplicated memory between zram and memory.
> 
> However, with introducing rw_page in zram <8c7f01025f7b>
> "zram: implement rw_page operation of zram", it became void
> because rw_page doesn't need bio.
> 
> This patch restores the function for rw_page.

This is a bit mysterious.  What is the actual runtime effect of the
patch?  I assume that 8c7f01025f7b caused duplication of memory and
that the only problem is additional resource consumption?  If so, what
are the observable effects?  etcetera, please.

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[PATCH] zram: revive swap_slot_free_notify Minchan Kim <minchan@kernel.org> - 2016-03-18 09:00 +0100
  Re: [PATCH] zram: revive swap_slot_free_notify Andrew Morton <akpm@linux-foundation.org> - 2016-03-21 21:40 +0100
    Re: [PATCH] zram: revive swap_slot_free_notify Minchan Kim <minchan@kernel.org> - 2016-03-22 01:00 +0100
  Re: [PATCH] zram: revive swap_slot_free_notify Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-03-22 06:10 +0100
    Re: [PATCH] zram: revive swap_slot_free_notify Minchan Kim <minchan@kernel.org> - 2016-03-22 09:00 +0100
      Re: [PATCH] zram: revive swap_slot_free_notify Joonsoo Kim <js1304@gmail.com> - 2016-03-22 09:30 +0100
        Re: [PATCH] zram: revive swap_slot_free_notify Minchan Kim <minchan@kernel.org> - 2016-03-22 15:10 +0100
          Re: [PATCH] zram: revive swap_slot_free_notify Joonsoo Kim <iamjoonsoo.kim@lge.com> - 2016-03-23 05:50 +0100

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