On Mon, 15 Mar 2021 23:28:08 -0700 Arjun Roy wrote:

On Mon, Mar 15, 2021 at 11:22 PM Arjun Roy [off-list ref] wrote:

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On Mon, Mar 15, 2021 at 9:29 PM Shakeel Butt [off-list ref] wrote:  

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On Mon, Mar 15, 2021 at 9:20 PM Arjun Roy [off-list ref] wrote:  

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It is due to "mm: page-writeback: simplify memcg handling in
test_clear_page_writeback()" patch in the mm tree. You would need to
reintroduce the lock_page_memcg() which returns the memcg and make
__unlock_page_memcg() non-static.  

To clarify, Shakeel - the tag "tag: v5.12-rc2-mmots-2021-03-11-21-49"
fails to build on a clean checkout, without this patch, due to a
compilation failure in mm/shmem.c, for reference:
https://pastebin.com/raw/12eSGdGD
(and that's why I'm basing this patch off of net-next in this email).

-Arjun  

Another seeming anomaly - the patch sent out passes
scripts/checkpatch.pl but netdev/checkpatch finds plenty of actionable
fixes here: https://patchwork.kernel.org/project/netdevbpf/patch/20210316041645.144249-1-arjunroy.kdev@gmail.com/

Is netdev using some other automated checker instead of scripts/checkpatch.pl?

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