linux-kernel - linux-next: build failure after merge of the mm tree

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Message-ID: <20230306135447.2c657f48@canb.auug.org.au>
Date:   Mon, 6 Mar 2023 13:54:47 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Suren Baghdasaryan <surenb@...gle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the mm tree

Hi all,

After merging the mm tree, today's linux-next build (various) failed
like this:

mm/khugepaged.c:1702:9: error: implicit declaration of function ‘vma_try_start_write’; did you mean ‘vma_start_write’? [-Werror=implicit-function-declaration]

Caused by commit

  92e3612279f9 ("mm/khugepaged: fix vm_lock/i_mmap_rwsem inversion in retract_page_tables")

The definition of vma_try_start_write() is protected by
CONFIG_PER_VMA_LOCK, but its use is not.

-- 
Cheers,
Stephen Rothwell

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