linux-kernel - Re: [PATCH 1/2] Revert "MIPS: kernel: {ftrace,kgdb}: Set correct address limit for cache flushes"

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Date:   Wed, 10 Feb 2021 19:11:00 +0000
From:   Christoph Hellwig <hch@...radead.org>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>, linux-mips@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] Revert "MIPS: kernel: {ftrace,kgdb}: Set correct
 address limit for cache flushes"

On Wed, Feb 10, 2021 at 05:16:13PM +0100, Thomas Bogendoerfer wrote:
> This reverts commit 6ebda44f366478d1eea180d93154e7d97b591f50.
> 
> All icache flushes in this code paths are done via flush_icache_range(),
> which only uses normal cache instruction. And this is the correct thing
> for EVA mode, too. So no need to do set_fs(KERNEL_DS) here.
> 
> Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>

... it might be time to kill off the remaining set_fs() users in mips
code as well ...