  We study theoretically the influence of spin accumulation on
superconductivity in a superconductor/ferromagnet bilayer. It is well-known
that the superconductivity in S/F bilayers is suppressed by the proximity to a
ferromagnet. The spin accumulation by itself is also a depairing factor. But
here we show that creation of the spin accumulation on top of effective
exchange depairing, caused by the proximity to a ferromagnet, can lead to an
opposite result. The superconductivity can be partially recovered by
spin-dependent quasiparticle distribution. The systems with realistic
parameters are considered and the possible experimental setup is proposed.
