linux-kernel - Re: [PATCH 09/17] m68k: Implement xor_unlock_is_negative

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Message-ID: <ZQmvhC+pGWNs9R23@casper.infradead.org>
Date:   Tue, 19 Sep 2023 15:26:12 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     David Laight <David.Laight@...lab.com>
Cc:     Greg Ungerer <gregungerer@...tnet.com.au>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-fsdevel@...r.kernel.org" <linux-fsdevel@...r.kernel.org>,
        "linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
        "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
        Nicholas Piggin <npiggin@...il.com>
Subject: Re: [PATCH 09/17] m68k: Implement xor_unlock_is_negative_byte

On Tue, Sep 19, 2023 at 01:23:08PM +0000, David Laight wrote:
> > Well, that sucks.  What do you suggest for Coldfire?
> 
> Can you just do a 32bit xor ?
> Unless you've got smp m68k I'd presume it is ok?
> (And assuming you aren't falling off a page.)

Patch welcome.