Hi Hari Thanks for the update. On 01/05/17 at 10:59pm, Hari Bathini wrote: > Traditionally, kdump is used to save vmcore in case of a crash. Some > architectures like powerpc can save vmcore using architecture specific > support instead of kexec/kdump mechanism. Such architecture specific > support also needs to reserve memory, to be used by dump capture kernel. > crashkernel parameter can be a reused, for memory reservation, by such > architecture specific infrastructure. > > But currently, code related to vmcoreinfo and parsing of crashkernel > parameter is built under CONFIG_KEXEC_CORE. This patch introduces > CONFIG_CRASH_CORE and moves the above mentioned code under this config, > allowing code reuse without dependency on CONFIG_KEXEC. There is no > functional change with this patch. > > Signed-off-by: Hari Bathini <hbathini at linux.vnet.ibm.com> > --- > > Changes from v3: > * Renamed log_buf_kexec_setup()to log_buf_vmcoreinfo_setup() instead of > log_buf_crash_setup(). > > Changes from v2: > * Used CONFIG_CRASH_CORE instead of CONFIG_KEXEC_CORE at > appropriate places in printk and ksysfs. > > > arch/Kconfig | 4 > include/linux/crash_core.h | 65 ++++++ > include/linux/kexec.h | 57 ------ > include/linux/printk.h | 4 > kernel/Makefile | 1 > kernel/crash_core.c | 445 ++++++++++++++++++++++++++++++++++++++++++++ > kernel/kexec_core.c | 404 ---------------------------------------- > kernel/ksysfs.c | 8 + > kernel/printk/printk.c | 6 - > 9 files changed, 531 insertions(+), 463 deletions(-) > create mode 100644 include/linux/crash_core.h > create mode 100644 kernel/crash_core.c > [snip] Acked-by: Dave Young <dyoung at redhat.com> Thanks Dave
