Re: [PATCH 3/4] ARM: change vmalloc_min to vmalloc_start

From: Xu, Yanfei
Date: Thu May 27 2021 - 22:53:19 EST




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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