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-rw-r--r--arch/s390/include/asm/kprobes.h4
-rw-r--r--arch/s390/kernel/dumpstack.c12
2 files changed, 6 insertions, 10 deletions
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
index b47ad3b642cc..591e5a5279b0 100644
--- a/arch/s390/include/asm/kprobes.h
+++ b/arch/s390/include/asm/kprobes.h
@@ -43,9 +43,9 @@ typedef u16 kprobe_opcode_t;
#define MAX_INSN_SIZE 0x0003
#define MAX_STACK_SIZE 64
#define MIN_STACK_SIZE(ADDR) (((MAX_STACK_SIZE) < \
- (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR))) \
+ (((unsigned long)task_stack_page(current)) + THREAD_SIZE - (ADDR))) \
? (MAX_STACK_SIZE) \
- : (((unsigned long)current_thread_info()) + THREAD_SIZE - (ADDR)))
+ : (((unsigned long)task_stack_page(current)) + THREAD_SIZE - (ADDR)))
#define kretprobe_blacklist_size 0
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 69f9908ac44c..6693383bc01b 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -78,14 +78,10 @@ void dump_trace(dump_trace_func_t func, void *data, struct task_struct *task,
sp = __dump_trace(func, data, sp,
S390_lowcore.async_stack + frame_size - ASYNC_SIZE,
S390_lowcore.async_stack + frame_size);
- if (task)
- __dump_trace(func, data, sp,
- (unsigned long)task_stack_page(task),
- (unsigned long)task_stack_page(task) + THREAD_SIZE);
- else
- __dump_trace(func, data, sp,
- S390_lowcore.thread_info,
- S390_lowcore.thread_info + THREAD_SIZE);
+ task = task ?: current;
+ __dump_trace(func, data, sp,
+ (unsigned long)task_stack_page(task),
+ (unsigned long)task_stack_page(task) + THREAD_SIZE);
}
EXPORT_SYMBOL_GPL(dump_trace);