Re: [PATCH 7/8] membarrier: Remove arm (32) support for SYNC_CORE
From: Andy Lutomirski <luto@kernel.org>
Date: 2021-06-18 00:07:09
Also in:
linux-arm-kernel, lkml
On 6/15/21 8:21 PM, Andy Lutomirski wrote:
On arm32, the only way to safely flush icache from usermode is to call cacheflush(2). This also handles any required pipeline flushes, so membarrier's SYNC_CORE feature is useless on arm. Remove it.
After all the discussion, I'm dropping this patch.