From: Xin Long <lucien....@gmail.com>
Date: Mon, 15 Apr 2019 17:15:05 +0800

> sctp memory accounting is added in this patchset by using
> these kernel APIs on send side:
> 
>   - sk_mem_charge()
>   - sk_mem_uncharge()
>   - sk_wmem_schedule()
>   - sk_under_memory_pressure()
>   - sk_mem_reclaim()
> 
> and these on receive side:
> 
>   - sk_mem_charge()
>   - sk_mem_uncharge()
>   - sk_rmem_schedule()
>   - sk_under_memory_pressure()
>   - sk_mem_reclaim()
> 
> With sctp memory accounting, we can limit the memory allocation by
> either sysctl:
> 
>   # sysctl -w net.sctp.sctp_mem="10 20 50"
> 
> or cgroup:
> 
>   # echo $((8<<14)) > \
>     /sys/fs/cgroup/memory/sctp_mem/memory.kmem.tcp.limit_in_bytes
> 
> When the socket is under memory pressure, the send side will block
> and wait, while the receive side will renege or drop.
> 
> v1->v2:
>   - add the missing Reported/Tested/Acked/-bys.

Series applied, thanks Xin.

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