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SubjectRe: possible deadlock in shmem_mfill_atomic_pte
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Hello,

syzbot has tested the proposed patch and the reproducer did not trigger crash:

Reported-and-tested-by: syzbot+e27980339d305f2dbfd9@syzkaller.appspotmail.com

Tested on:

commit: 8f9c86c9 mm: shmem: disable interrupt when acquiring info-..
git tree: https://github.com/yang-shi/linux.git
kernel config: https://syzkaller.appspot.com/x/.config?x=11f10cc27c63cade
dashboard link: https://syzkaller.appspot.com/bug?extid=e27980339d305f2dbfd9
compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)

Note: testing is done by a robot and is best-effort only.

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