Attachment 838772 Details for Bug 1172897

[patch] Changes needed for kernel 5.8 for patch to module_memory to work

temp_kernel.patch (text/plain), 1008 bytes, created by Larry Finger on 2020-06-14 17:16:35 UTC

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Creator: Larry Finger

Created: 2020-06-14 17:16:35 UTC

Size: 1008 bytes

patch

obsolete

>This patch exports the two kernel routines needed for VirtualBox modules to
>load under kernel 5.8. These exports will be temporary and can be removed
>as soon as Oracle fixes the memory management code in module vboxdrv. After
>much trying, I was unable to make the existing code work.
>
>Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
>
>diff --git a/mm/vmalloc.c b/mm/vmalloc.c
>index 3091c2ca60df..f027bc7d2534 100644
>--- a/mm/vmalloc.c
>+++ b/mm/vmalloc.c
>@@ -325,6 +325,7 @@ int map_kernel_range(unsigned long start, unsigned long size, pgprot_t prot,
> 	flush_cache_vmap(start, start + size);
> 	return ret;
> }
>+EXPORT_SYMBOL(map_kernel_range);
> 
> int is_vmalloc_or_module_addr(const void *x)
> {
>@@ -2130,6 +2131,7 @@ struct vm_struct *__get_vm_area_caller(unsigned long size, unsigned long flags,
> 	return __get_vm_area_node(size, 1, flags, start, end, NUMA_NO_NODE,
> 				  GFP_KERNEL, caller);
> }
>+EXPORT_SYMBOL(__get_vm_area_caller);
> 
> /**
>  * get_vm_area - reserve a contiguous kernel virtual area

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Attachments on bug 1172897: 838772