diff options
Diffstat (limited to 'arch/s390/kernel/setup.c')
| -rw-r--r-- | arch/s390/kernel/setup.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 36445dd40fdb..5853c9872dfe 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -305,12 +305,9 @@ void *restart_stack __section(.data); unsigned long stack_alloc(void) { #ifdef CONFIG_VMAP_STACK - return (unsigned long) - __vmalloc_node_range(THREAD_SIZE, THREAD_SIZE, - VMALLOC_START, VMALLOC_END, - THREADINFO_GFP, - PAGE_KERNEL, 0, NUMA_NO_NODE, - __builtin_return_address(0)); + return (unsigned long)__vmalloc_node(THREAD_SIZE, THREAD_SIZE, + THREADINFO_GFP, NUMA_NO_NODE, + __builtin_return_address(0)); #else return __get_free_pages(GFP_KERNEL, THREAD_SIZE_ORDER); #endif @@ -384,8 +381,7 @@ static void __init setup_lowcore_dat_off(void) lc->restart_psw.addr = (unsigned long) restart_int_handler; lc->external_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK; lc->external_new_psw.addr = (unsigned long) ext_int_handler; - lc->svc_new_psw.mask = PSW_KERNEL_BITS | - PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK; + lc->svc_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK; lc->svc_new_psw.addr = (unsigned long) system_call; lc->program_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_MCHECK; lc->program_new_psw.addr = (unsigned long) pgm_check_handler; @@ -597,9 +593,10 @@ static void __init setup_memory_end(void) #ifdef CONFIG_CRASH_DUMP /* - * When kdump is enabled, we have to ensure that no memory from - * the area [0 - crashkernel memory size] and - * [crashk_res.start - crashk_res.end] is set offline. + * When kdump is enabled, we have to ensure that no memory from the area + * [0 - crashkernel memory size] is set offline - it will be exchanged with + * the crashkernel memory region when kdump is triggered. The crashkernel + * memory region can never get offlined (pages are unmovable). */ static int kdump_mem_notifier(struct notifier_block *nb, unsigned long action, void *data) @@ -610,11 +607,7 @@ static int kdump_mem_notifier(struct notifier_block *nb, return NOTIFY_OK; if (arg->start_pfn < PFN_DOWN(resource_size(&crashk_res))) return NOTIFY_BAD; - if (arg->start_pfn > PFN_DOWN(crashk_res.end)) - return NOTIFY_OK; - if (arg->start_pfn + arg->nr_pages - 1 < PFN_DOWN(crashk_res.start)) - return NOTIFY_OK; - return NOTIFY_BAD; + return NOTIFY_OK; } static struct notifier_block kdump_mem_nb = { |