linux-kernel - Re: [PATCH 3/4] ARM: change vmalloc_min to vmalloc

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Message-ID: <f2be5610-9a2c-f4cc-510c-b8fae22f67dd@windriver.com>
Date:   Fri, 28 May 2021 10:52:28 +0800
From:   "Xu, Yanfei" <yanfei.xu@...driver.com>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>
Cc:     rppt@...nel.org, ardb@...nel.org, linus.walleij@...aro.org,
        akpm@...ux-foundation.org, carver4lio@....com,
        tiantao6@...ilicon.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] ARM: change vmalloc_min to vmalloc_start



On 5/20/21 5:00 PM, Russell King (Oracle) wrote:
> [Please note: This e-mail is from an EXTERNAL e-mail address]
> 
> On Wed, May 19, 2021 at 12:41:10PM +0800, Xu, Yanfei wrote:
>> On 5/18/21 8:15 PM, Russell King (Oracle) wrote:
>>> -static unsigned long __initdata vmalloc_min =
>>> -       VMALLOC_END - (240 << 20) - VMALLOC_OFFSET;
>>> +static unsigned long __initdata vmalloc_start = VMALLOC_END - (240 << 20);
>>>
>>>    /*
>>>     * vmalloc=size forces the vmalloc area to be exactly 'size'
>>> @@ -1169,7 +1168,8 @@ void __init adjust_lowmem_bounds(void)
>>>            * and may itself be outside the valid range for which phys_addr_t
>>>            * and therefore __pa() is defined.
>>>            */
>>> -       vmalloc_limit = (u64)vmalloc_min - PAGE_OFFSET + PHYS_OFFSET;
>>> +       vmalloc_limit = (u64)vmalloc_start -
>>> +                       (PAGE_OFFSET + PHYS_OFFSET + VMALLOC_OFFSET);
>>>
>> Here is bug, it should be
>>
>>         vmalloc_limit = (u64)vmalloc_start -
>>                         (PAGE_OFFSET + VMALLOC_OFFSET) + PHYS_OFFSET;
> 
> Yes, you're absolutely right, thanks for catching that!
> 

Hi Russell,

Will you send v2? (or I missed something.)

Thanks,
Yanfei

> --
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>