Merge branch 'raw-RCU-conversion'

Eric Dumazet says:

====================
raw: RCU conversion

Using rwlock in networking code is extremely risky.
writers can starve if enough readers are constantly
grabing the rwlock.

I thought rwlock were at fault and sent this patch:

https://lkml.org/lkml/2022/6/17/272

But Peter and Linus essentially told me rwlock had to be unfair.

We need to get rid of rwlock in networking stacks.

Without this conversion, following script triggers soft lockups:

for i in {1..48}
do
 ping -f -n -q 127.0.0.1 &
 sleep 0.1
done

Next step will be to convert ping sockets to RCU as well.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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