Commit a2269a66 authored by Alexander Egorenkov's avatar Alexander Egorenkov Committed by Alexander Gordeev
Browse files

s390/os_info: Initialize old os_info in standalone dump kernel 



The commit be42660d0c13 ("s390/crash: use old os_info to create PT_LOAD headers")
introduced use of the old os_info into standalone dump kernel.
Before this change os_info_old_init() expected to be called only from
a regular kdump kernel although the function itself is able to work
in standalone dump kernels as well (because copy_oldmem_kernel() is able
to handle both use cases). Therefore, fix the expectation of os_info_old_init()
and enable it to be called from a standalone dump kernel.

Fixes: f4cac27d ("s390/crash: Use old os_info to create PT_LOAD headers")
Acked-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: default avatarAlexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: default avatarAlexander Gordeev <agordeev@linux.ibm.com>
parent 3113a29e

arch/s390/kernel/os_info.c

+2 −1
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <asm/physmem_info.h>

#include <asm/maccess.h>

#include <asm/asm-offsets.h>

#include <asm/ipl.h>



/*

 * OS info structure has to be page aligned
@@ -146,7 +147,7 @@ static void os_info_old_init(void) 


	if (os_info_init)

		return;

	if (!oldmem_data.start)

	if (!oldmem_data.start && !is_ipl_type_dump())

		goto fail;

	if (copy_oldmem_kernel(&addr, __LC_OS_INFO, sizeof(addr)))

		goto fail;