IB/umem: Indicate that process is being terminated
When process is killed while pagefault operation still in progress - function will fail. In this specific case we don't want any warnings in dmesg to avoid log analyzers false alerts. So we need distinct error code for this case. Signed-off-by: NArtemy Kovalyov <artemyko@mellanox.com> Signed-off-by: NLeon Romanovsky <leon@kernel.org> Signed-off-by: NDoug Ledford <dledford@redhat.com>
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