On 7/19/21 5:28 AM, Kirill A. Shutemov wrote:

On Sun, Jul 18, 2021 at 12:30:27PM +0800, Qi Zheng wrote:

quoted

The commit 63f3655f9501(mm, memcg: fix reclaim deadlock with writeback)
fix a deadlock bug by pre-allocating the pte page table outside of the
page lock, the commit f9ce0be71d1f(mm: Cleanup faultaround and
finish_fault() codepaths) rework the relevant code but ignore this race,
fix it.

Fixes: f9ce0be71d1f(mm: Cleanup faultaround and finish_fault() codepaths)
Signed-off-by: Qi Zheng <redacted>

Acked-by: Kirill A. Shutemov <redacted>

and add stable@, please.

OK, I will add these in the patch v2, thanks.