mmap: EINVAL not ENOMEM when rejecting VM_GROWS
Currently error is -ENOMEM when rejecting VM_GROWSDOWN|VM_GROWSUP from shared anonymous: hoist the file case's -EINVAL up for both. Signed-off-by: NHugh Dickins <hughd@google.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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