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SubjectRe: [PATCH] mm: Restore mmput_async
The patch that uses mmput_async() is
https://lkml.org/lkml/2017/9/8/785. Gmail doesn't seem to respect
in-reply-to.

On Wed, Sep 13, 2017 at 6:09 PM, Andrew Morton
<akpm@linux-foundation.org> wrote:
> On Wed, 13 Sep 2017 17:59:27 -0400 Sherry Yang <sherryy@android.com> wrote:
>
>> Restore asynchronous mmput, allowing mmput_async to be called
>> from an atomic context in Android binder shrinker callback.
>>
>> mmput_async was initially introduced in ec8d7c14e
>> ("mm, oom_reaper: do not mmput synchronously from the
>> oom reaper context"), and was removed in 212925802
>> ("mm: oom: let oom_reap_task and exit_mmap run concurrently")
>
> Presumably there's a patch somewhere which adds a call to mmput_async()
> into drivers/android/binder.c? Where is that patch?

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