---

yaml
---
r: 138751
b: refs/heads/master
c: a6b6a14
h: refs/heads/master
i:
  138749: 6663d45
  138747: b4fd995
  138743: 0457dc4
  138735: b425fe7
  138719: 740be68
  138687: 48de3ae
  138623: 3d9b685
  138495: dd4ac4b
  138239: d81b119
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 514ec49a5f5146a6c0ade1a688787acf13617868
+refs/heads/master: a6b6a14e0c60561f2902b078bd28d0e61defad70

trunk/arch/x86/kernel/cpu/mcheck/mce_amd_64.c

@@ -92,7 +92,8 @@ struct thresh_restart {
 };
 
 /* must be called with correct cpu affinity */
-static long threshold_restart_bank(void *_tr)
+/* Called via smp_call_function_single() */
+static void threshold_restart_bank(void *_tr)
 {
 	struct thresh_restart *tr = _tr;
 	u32 mci_misc_hi, mci_misc_lo;
@@ -119,7 +120,6 @@ static long threshold_restart_bank(void *_tr)
 
 	mci_misc_hi |= MASK_COUNT_EN_HI;
 	wrmsr(tr->b->address, mci_misc_lo, mci_misc_hi);
-	return 0;
 }
 
 /* cpu init entry point, called from mce.c with preempt off */
@@ -279,7 +279,7 @@ static ssize_t store_interrupt_enable(struct threshold_block *b,
 	tr.b = b;
 	tr.reset = 0;
 	tr.old_limit = 0;
-	work_on_cpu(b->cpu, threshold_restart_bank, &tr);
+	smp_call_function_single(b->cpu, threshold_restart_bank, &tr, 1);
 
 	return end - buf;
 }
@@ -301,31 +301,40 @@ static ssize_t store_threshold_limit(struct threshold_block *b,
 	tr.b = b;
 	tr.reset = 0;
 
-	work_on_cpu(b->cpu, threshold_restart_bank, &tr);
+	smp_call_function_single(b->cpu, threshold_restart_bank, &tr, 1);
 
 	return end - buf;
 }
 
-static long local_error_count(void *_b)
+struct threshold_block_cross_cpu {
+	struct threshold_block *tb;
+	long retval;
+};
+
+static void local_error_count_handler(void *_tbcc)
 {
-	struct threshold_block *b = _b;
+	struct threshold_block_cross_cpu *tbcc = _tbcc;
+	struct threshold_block *b = tbcc->tb;
 	u32 low, high;
 
 	rdmsr(b->address, low, high);
-	return (high & 0xFFF) - (THRESHOLD_MAX - b->threshold_limit);
+	tbcc->retval = (high & 0xFFF) - (THRESHOLD_MAX - b->threshold_limit);
 }
 
 static ssize_t show_error_count(struct threshold_block *b, char *buf)
 {
-	return sprintf(buf, "%lx\n", work_on_cpu(b->cpu, local_error_count, b));
+	struct threshold_block_cross_cpu tbcc = { .tb = b, };
+
+	smp_call_function_single(b->cpu, local_error_count_handler, &tbcc, 1);
+	return sprintf(buf, "%lx\n", tbcc.retval);
 }
 
 static ssize_t store_error_count(struct threshold_block *b,
 				 const char *buf, size_t count)
 {
 	struct thresh_restart tr = { .b = b, .reset = 1, .old_limit = 0 };
 
-	work_on_cpu(b->cpu, threshold_restart_bank, &tr);
+	smp_call_function_single(b->cpu, threshold_restart_bank, &tr, 1);
 	return 1;
 }
 
@@ -394,7 +403,7 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
 	if ((bank >= NR_BANKS) || (block >= NR_BLOCKS))
 		return 0;
 
-	if (rdmsr_safe(address, &low, &high))
+	if (rdmsr_safe_on_cpu(cpu, address, &low, &high))
 		return 0;
 
 	if (!(high & MASK_VALID_HI)) {
@@ -458,12 +467,11 @@ static __cpuinit int allocate_threshold_blocks(unsigned int cpu,
 	return err;
 }
 
-static __cpuinit long local_allocate_threshold_blocks(void *_bank)
+static __cpuinit long
+local_allocate_threshold_blocks(int cpu, unsigned int bank)
 {
-	unsigned int *bank = _bank;
-
-	return allocate_threshold_blocks(smp_processor_id(), *bank, 0,
-					 MSR_IA32_MC0_MISC + *bank * 4);
+	return allocate_threshold_blocks(cpu, bank, 0,
+					 MSR_IA32_MC0_MISC + bank * 4);
 }
 
 /* symlinks sibling shared banks to first core.  first core owns dir/files. */
@@ -526,7 +534,7 @@ static __cpuinit int threshold_create_bank(unsigned int cpu, unsigned int bank)
 
 	per_cpu(threshold_banks, cpu)[bank] = b;
 
-	err = work_on_cpu(cpu, local_allocate_threshold_blocks, &bank);
+	err = local_allocate_threshold_blocks(cpu, bank);
 	if (err)
 		goto out_free;