Linux-libre 4.8.10-gnupck-4.8.10-gnu

6 files changed, 19 insertions, 14 deletions

diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index 28f03ca60..794bebb43 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -363,11 +363,11 @@ out:
 static int diag224_get_name_table(void)
 {
 	/* memory must be below 2GB */
-	diag224_cpu_names = kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA);
+	diag224_cpu_names = (char *) __get_free_page(GFP_KERNEL | GFP_DMA);
 	if (!diag224_cpu_names)
 		return -ENOMEM;
 	if (diag224(diag224_cpu_names)) {
-		kfree(diag224_cpu_names);
+		free_page((unsigned long) diag224_cpu_names);
 		return -EOPNOTSUPP;
 	}
 	EBCASC(diag224_cpu_names + 16, (*diag224_cpu_names + 1) * 16);
@@ -376,7 +376,7 @@ static int diag224_get_name_table(void)
 
 static void diag224_delete_name_table(void)
 {
-	kfree(diag224_cpu_names);
+	free_page((unsigned long) diag224_cpu_names);
 }
 
 static int diag224_idx2name(int index, char *name)
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 03323175d..602af692e 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -192,7 +192,7 @@ struct task_struct;
 struct mm_struct;
 struct seq_file;
 
-typedef int (*dump_trace_func_t)(void *data, unsigned long address);
+typedef int (*dump_trace_func_t)(void *data, unsigned long address, int reliable);
 void dump_trace(dump_trace_func_t func, void *data,
 		struct task_struct *task, unsigned long sp);
 
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 6693383bc..518f615ad 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -38,10 +38,10 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 		if (sp < low || sp > high - sizeof(*sf))
 			return sp;
 		sf = (struct stack_frame *) sp;
+		if (func(data, sf->gprs[8], 0))
+			return sp;
 		/* Follow the backchain. */
 		while (1) {
-			if (func(data, sf->gprs[8]))
-				return sp;
 			low = sp;
 			sp = sf->back_chain;
 			if (!sp)
@@ -49,6 +49,8 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 			if (sp <= low || sp > high - sizeof(*sf))
 				return sp;
 			sf = (struct stack_frame *) sp;
+			if (func(data, sf->gprs[8], 1))
+				return sp;
 		}
 		/* Zero backchain detected, check for interrupt frame. */
 		sp = (unsigned long) (sf + 1);
@@ -56,7 +58,7 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 			return sp;
 		regs = (struct pt_regs *) sp;
 		if (!user_mode(regs)) {
-			if (func(data, regs->psw.addr))
+			if (func(data, regs->psw.addr, 1))
 				return sp;
 		}
 		low = sp;
@@ -90,7 +92,7 @@ struct return_address_data {
 	int depth;
 };
 
-static int __return_address(void *data, unsigned long address)
+static int __return_address(void *data, unsigned long address, int reliable)
 {
 	struct return_address_data *rd = data;
 
@@ -109,9 +111,12 @@ unsigned long return_address(int depth)
 }
 EXPORT_SYMBOL_GPL(return_address);
 
-static int show_address(void *data, unsigned long address)
+static int show_address(void *data, unsigned long address, int reliable)
 {
-	printk("([<%016lx>] %pSR)\n", address, (void *)address);
+	if (reliable)
+		printk(" [<%016lx>] %pSR \n", address, (void *)address);
+	else
+		printk("([<%016lx>] %pSR)\n", address, (void *)address);
 	return 0;
 }
 
diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c
index 17431f63d..955a7b6fa 100644
--- a/arch/s390/kernel/perf_event.c
+++ b/arch/s390/kernel/perf_event.c
@@ -222,7 +222,7 @@ static int __init service_level_perf_register(void)
 }
 arch_initcall(service_level_perf_register);
 
-static int __perf_callchain_kernel(void *data, unsigned long address)
+static int __perf_callchain_kernel(void *data, unsigned long address, int reliable)
 {
 	struct perf_callchain_entry_ctx *entry = data;
 
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c
index 44f84b23d..355db9db8 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -27,12 +27,12 @@ static int __save_address(void *data, unsigned long address, int nosched)
 	return 1;
 }
 
-static int save_address(void *data, unsigned long address)
+static int save_address(void *data, unsigned long address, int reliable)
 {
 	return __save_address(data, address, 0);
 }
 
-static int save_address_nosched(void *data, unsigned long address)
+static int save_address_nosched(void *data, unsigned long address, int reliable)
 {
 	return __save_address(data, address, 1);
 }
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 16f4c3960..9a4de4599 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <asm/processor.h>
 
-static int __s390_backtrace(void *data, unsigned long address)
+static int __s390_backtrace(void *data, unsigned long address, int reliable)
 {
 	unsigned int *depth = data;