linux-kernel - Re: [RFC V1 08/31] m68k/mm: Enable ARCH_HAS_VM_GET_PAGE

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Message-ID: <aef5318e-0b48-2a9e-1a1b-386894b116f4@arm.com>
Date:   Tue, 25 Jan 2022 09:12:04 +0530
From:   Anshuman Khandual <anshuman.khandual@....com>
To:     Andreas Schwab <schwab@...ux-m68k.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        hch@...radead.org, akpm@...ux-foundation.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        linux-m68k@...ts.linux-m68k.org
Subject: Re: [RFC V1 08/31] m68k/mm: Enable ARCH_HAS_VM_GET_PAGE_PROT



On 1/24/22 7:43 PM, Andreas Schwab wrote:
> On Jan 24 2022, Anshuman Khandual wrote:
> 
>> +pgprot_t vm_get_page_prot(unsigned long vm_flags)
>> +{
>> +	switch (vm_flags & (VM_READ | VM_WRITE | VM_EXEC | VM_SHARED)) {
>> +	case VM_NONE:
>> +		return __pgprot(pgprot_val(PAGE_NONE_C)|_PAGE_CACHE040);
> 
> _PAGE_CACHE040 should only be present when running on a 040 or 060.
> 

Right, seems like I have missed the conditionality on CPU_IS_040_OR_060
while moving the code, will fix it.