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[ Upstream commita5b3cd32ff] Wire up TIF_NOTIFY_SIGNAL handling for um. Cc: linux-um@lists.infradead.org Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com> Change-Id: Idc702390f1ba7575230aa4c81d27f80088b17afc Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commitdc808ffd97) Bug: 268174392 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>