ANDROID: Fix build errors caused by missing mmu_notifier_lock definition
Build fails when using CONFIG_SPECULATIVE_PAGE_FAULT=y and CONFIG_MMU_NOTIFIER=n configuration due to the new use of mmu_notifier_lock in vm_area_free. Fix it by making mmu_notifier_lock available whenever SPF is enabled. Fixes: dc8ac508 "ANDROID: Use the notifier lock to perform file-backed vma teardown" Bug: 231394031 Signed-off-by:Suren Baghdasaryan <surenb@google.com> Change-Id: I342f3c04affd2fa09aca32a7d0802b45be903a5c
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