[Drbd-dev] remove kernel_setsockopt and kernel_getsockopt

[Sagi Grimberg]

> Hi Dave,
> 
> this series removes the kernel_setsockopt and kernel_getsockopt
> functions, and instead switches their users to small functions that
> implement setting (or in one case getting) a sockopt directly using
> a normal kernel function call with type safety and all the other
> benefits of not having a function call.
> 
> In some cases these functions seem pretty heavy handed as they do
> a lock_sock even for just setting a single variable, but this mirrors
> the real setsockopt implementation - counter to that a few kernel
> drivers just set the fields directly already.
> 
> Nevertheless the diffstat looks quite promising:
> 
>   42 files changed, 721 insertions(+), 799 deletions(-)

For the nvme-tcp bits,

Acked-by: Sagi Grimberg <sagi at grimberg.me>