Commit a3fe25d9 authored by Suren Baghdasaryan's avatar Suren Baghdasaryan Committed by Carlos Llamas
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ANDROID: add vma->file_ref_count to synchronize vma->vm_file destruction 



In order to prevent destruction of vma->vm_file while it's being used
during speculative page fault handling, introduce an atomic refcounter.

Bug: 234527424
Signed-off-by: default avatarSuren Baghdasaryan <surenb@google.com>
Change-Id: I0e971156f3e76feb45136bac1582a7eaab8c75df
parent a16e169d
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