aboutsummaryrefslogtreecommitdiff
path: root/arch
diff options
context:
space:
mode:
authorMichael Holzheu <holzheu@linux.vnet.ibm.com>2012-05-18 15:10:05 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2012-05-23 17:06:51 +0200
commita9fbf1a53836d4105f95df947ac00e22311dff33 (patch)
tree0e40706419697af9ab89281285a8d27a15591022 /arch
parentd7b7cdea06360d3151cc8118751b3b82519c4ce0 (diff)
downloadlinux-linaro-stable-a9fbf1a53836d4105f95df947ac00e22311dff33.tar.gz
s390/kdump: Account /sys/kernel/kexec_crash_size changes in OS info
The crashkernel size for kdump can be reduced at runtime with the sysfs file "/sys/kernel/kexec_crash_size". Currently those changes do not update the OS info crashkernel information that is used for stand-alone kdump. With this fix now also the OS info crashkernel information is updated correctly. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/machine_kexec.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index bdad47d54478..03d2027d656a 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -24,6 +24,7 @@
#include <asm/ipl.h>
#include <asm/diag.h>
#include <asm/asm-offsets.h>
+#include <asm/os_info.h>
typedef void (*relocate_kernel_t)(kimage_entry_t *, unsigned long);
@@ -114,8 +115,13 @@ static void crash_map_pages(int enable)
size % KEXEC_CRASH_MEM_ALIGN);
if (enable)
vmem_add_mapping(crashk_res.start, size);
- else
+ else {
vmem_remove_mapping(crashk_res.start, size);
+ if (size)
+ os_info_crashkernel_add(crashk_res.start, size);
+ else
+ os_info_crashkernel_add(0, 0);
+ }
}
/*