Re: [PATCH 1/1] bpf: avoid unnecessary IPI in bpf_flush_icache
From: Will Deacon <will@kernel.org>
Date: 2021-06-01 17:41:25
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bpf, lkml, netdev
On Tue, Jun 01, 2021 at 07:20:04PM +0200, Daniel Borkmann wrote:
On 6/1/21 5:06 PM, Yanfei Xu wrote:quoted
It's no need to trigger IPI for keeping pipeline fresh in bpf case.This needs a more concrete explanation/analysis on "why it is safe" to do so rather than just saying that it is not needed.
Agreed. You need to show how the executing thread ends up going through a context synchronizing operation before jumping to the generated code if the IPI here is removed. Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel