linux-kernel - Re: [PATCH] mm: hugetlb: yield when prepping struct pages

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Message-ID: <20180629073146.GB13860@dhcp22.suse.cz>
Date:   Fri, 29 Jun 2018 09:31:46 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Cannon Matthews <cannonmatthews@...gle.com>
Cc:     mike.kravetz@...cle.com, akpm@...ux-foundation.org,
        nyc@...omorphy.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org,
        Andres Lagar-Cavilla <andreslc@...gle.com>,
        Peter Feiner <pfeiner@...gle.com>,
        Greg Thelen <gthelen@...gle.com>
Subject: Re: [PATCH] mm: hugetlb: yield when prepping struct pages

On Thu 28-06-18 15:16:46, Cannon Matthews wrote:
> Thanks for the quick turnaround.
> 
> Good to know about the how the 2M code path differs, I have been
> trying to trace through some of this and it's easy to get lost between
> which applies to which size.

Yeah, GB hugetlb pages implementation has been hacked into the existing
hugetlb code in a quite ugly way. We have done some cleanups since then
but there is still a lot of room for improvements.
-- 
Michal Hocko
SUSE Labs