linux-kernel - Re: [mm-unstable v5 PATCH 0/7] Cleanup transhuge

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Date:   Sun, 3 Jul 2022 16:14:22 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Yang Shi <shy828301@...il.com>
Cc:     vbabka@...e.cz, kirill.shutemov@...ux.intel.com,
        willy@...radead.org, zokeefe@...gle.com, linmiaohe@...wei.com,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [mm-unstable v5 PATCH 0/7] Cleanup transhuge_xxx helpers

On Thu, 16 Jun 2022 10:48:33 -0700 Yang Shi <shy828301@...il.com> wrote:

> This series is the follow-up of the discussion about cleaning up transhuge_xxx
> helpers at https://lore.kernel.org/linux-mm/627a71f8-e879-69a5-ceb3-fc8d29d2f7f1@suse.cz/.
> 
> THP has a bunch of helpers that do VMA sanity check for different paths, they
> do the similar checks for the most callsites and have a lot duplicate codes.
> And it is confusing what helpers should be used at what conditions.
> 
> This series reorganized and cleaned up the code so that we could consolidate
> all the checks into hugepage_vma_check().
> 
> The transhuge_vma_enabled(), transparent_hugepage_active() and
> __transparent_hugepage_enabled() are killed by this series.

I plan to move this into mm-stable later this week, along with two fixups:

https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-thp-kill-transparent_hugepage_active-fix.patch
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-thp-kill-transparent_hugepage_active-fix-fix.patch