Re: [PATCH v2 1/7] s390/kdump: implement is_kdump_kernel()

[Alexander Egorenkov <egorenar@linux.ibm.com>]

Hi David,

David Hildenbrand <david@redhat.com> writes:


> Staring at the powerpc implementation:
>
> /*
>   * Return true only when kexec based kernel dump capturing method is used.
>   * This ensures all restritions applied for kdump case are not automatically
>   * applied for fadump case.
>   */
> bool is_kdump_kernel(void)
> {
> 	return !is_fadump_active() && elfcorehdr_addr != ELFCORE_ADDR_MAX;
> }
> EXPORT_SYMBOL_GPL(is_kdump_kernel);

Thanks for the pointer.

I would say power's version is semantically equivalent to what i have in
mind for s390 :) If a dump kernel is running, but not a stand-alone
one (apart from sa kdump), then it's a kdump kernel. 

Regards
Alex