linux-kernel - Re: [PATCH NOTFORMERGE 0/5] Extend remote madvise API to KSM hints

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Date:   Tue, 10 Dec 2019 11:49:39 +0100
From:   Oleksandr Natalenko <oleksandr@...hat.com>
To:     Minchan Kim <minchan@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-api@...r.kernel.org
Subject: Re: [PATCH NOTFORMERGE 0/5] Extend remote madvise API to KSM hints

Hello, Minchan.

On Sun, Jun 16, 2019 at 10:58:30AM +0200, Oleksandr Natalenko wrote:
> This is a set of commits based on our discussion on your submission [1].
> 
> First 2 implement minor suggestions just for you to not forget to take
> them into account.
> 
> uio.h inclusion was needed for me to be able to compile your series
> successfully. Also please note I had to enable "Transparent Hugepage
> Support" as well as "Enable idle page tracking" options, otherwise the
> build failed. I guess this can be addressed by you better since the
> errors are introduced with MADV_COLD introduction.
> 
> Last 2 commits are the actual KSM hints enablement. The first one
> implements additional check for the case where the mmap_sem is taken for
> write, and the second one just allows KSM hints to be used by the remote
> interface.
> 
> I'm not Cc'ing else anyone except two mailing lists to not distract
> people unnecessarily. If you are fine with this addition, please use it
> for your next iteration of process_madvise(), and then you'll Cc all the
> people needed.
> 
> Thanks.
> 
> [1] https://lore.kernel.org/lkml/20190531064313.193437-1-minchan@kernel.org/
> 
> Oleksandr Natalenko (5):
>   mm: rename madvise_core to madvise_common
>   mm: revert madvise_inject_error line split
>   mm: include uio.h to madvise.c
>   mm/madvise: employ mmget_still_valid for write lock
>   mm/madvise: allow KSM hints for remote API
> 
>  mm/madvise.c | 23 ++++++++++++++---------
>  1 file changed, 14 insertions(+), 9 deletions(-)
> 
> -- 
> 2.22.0
> 

This is a gentle ping. Are you still planning to submit process_madvise() solution?

-- 
  Best regards,
    Oleksandr Natalenko (post-factum)
    Senior Software Maintenance Engineer