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| author | Michael Holzheu <holzheu@linux.vnet.ibm.com> | 2012-05-18 15:10:05 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-05-23 17:06:51 +0200 |
| commit | a9fbf1a53836d4105f95df947ac00e22311dff33 (patch) | |
| tree | 0e40706419697af9ab89281285a8d27a15591022 /arch | |
| parent | d7b7cdea06360d3151cc8118751b3b82519c4ce0 (diff) | |
| download | linux-stable-a9fbf1a53836d4105f95df947ac00e22311dff33.tar.gz linux-stable-a9fbf1a53836d4105f95df947ac00e22311dff33.tar.bz2 linux-stable-a9fbf1a53836d4105f95df947ac00e22311dff33.zip | |
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.c | 8 |
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); + } } /* |