Hello:
This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@xxxxxxxxxx>:
On Fri, 9 Dec 2022 09:09:45 +0800 you wrote:
> From: Hou Tao <houtao1@xxxxxxxxxx>
>
> Hi,
>
> The patchset is just misc optimizations for bpf mem allocator. Patch 1
> fixes the OOM problem found during running hash-table update benchmark
> from qp-trie patchset [0]. The benchmark will add htab elements in
> batch and then delete elements in batch, so freed objects will stack on
> free_by_rcu and wait for the expiration of RCU grace period. There can
> be tens of thousands of freed objects and these objects are not
> available for new allocation, so adding htab element will continue to do
> new allocation.
>
> [...]
Here is the summary with links:
- [bpf-next,v2,1/2] bpf: Reuse freed element in free_by_rcu during allocation
https://git.kernel.org/bpf/bpf-next/c/0893d6007db5
- [bpf-next,v2,2/2] bpf: Skip rcu_barrier() if rcu_trace_implies_rcu_gp() is true
https://git.kernel.org/bpf/bpf-next/c/822ed78fab13
You are awesome, thank you!
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