xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse Source 
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Fix kprobes build with non-gawk awk
  x86: Split swiotlb initialization into two stages
  x86: Regex support and known-movable symbols for relocs, fix _end
  x86, msr: Remove incorrect, duplicated code in the MSR driver
  x86: Merge kernel_thread()
  x86: Sync 32/64-bit kernel_thread
  x86, 32-bit: Use same regs as 64-bit for kernel_thread_helper
  x86, 64-bit: Use user_mode() to determine new stack pointer in copy_thread()
  x86, 64-bit: Move kernel_thread to C
  x86-64, paravirt: Call set_iopl_mask() on 64 bits
  x86-32: Avoid pipeline serialization in PTREGSCALL1 and 2
  x86: Merge sys_clone
  x86, 32-bit: Convert sys_vm86 & sys_vm86old
  x86: Merge sys_sigaltstack
  x86: Merge sys_execve
  x86: Merge sys_iopl
  x86-32: Add new pt_regs stubs
  cpumask: Use modern cpumask style in arch/x86/kernel/cpu/mcheck/mce-inject.c
This commit is contained in:
Linus Torvalds
2009-12-16 12:02:37 -08:00
parent da184a8064 23637568ad
commit 61ecdb84c1
18 changed files with 245 additions and 294 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
arch/x86/kernel/cpu/mcheck/mce-inject.c
View File

@@ -74,7 +74,7 @@ static void raise_exception(struct mce *m, struct pt_regs *pregs)
m->finished = 0;
}
static cpumask_t mce_inject_cpumask;
static cpumask_var_t mce_inject_cpumask;
static int mce_raise_notify(struct notifier_block *self,
unsigned long val, void *data)
@@ -82,9 +82,9 @@ static int mce_raise_notify(struct notifier_block *self,
struct die_args *args = (struct die_args *)data;
int cpu = smp_processor_id();
struct mce *m = &__get_cpu_var(injectm);
if (val != DIE_NMI_IPI || !cpu_isset(cpu, mce_inject_cpumask))
if (val != DIE_NMI_IPI || !cpumask_test_cpu(cpu, mce_inject_cpumask))
return NOTIFY_DONE;
cpu_clear(cpu, mce_inject_cpumask);
cpumask_clear_cpu(cpu, mce_inject_cpumask);
if (m->inject_flags & MCJ_EXCEPTION)
raise_exception(m, args->regs);
else if (m->status)
@@ -148,22 +148,22 @@ static void raise_mce(struct mce *m)
unsigned long start;
int cpu;
get_online_cpus();
mce_inject_cpumask = cpu_online_map;
cpu_clear(get_cpu(), mce_inject_cpumask);
cpumask_copy(mce_inject_cpumask, cpu_online_mask);
cpumask_clear_cpu(get_cpu(), mce_inject_cpumask);
for_each_online_cpu(cpu) {
struct mce *mcpu = &per_cpu(injectm, cpu);
if (!mcpu->finished ||
MCJ_CTX(mcpu->inject_flags) != MCJ_CTX_RANDOM)
cpu_clear(cpu, mce_inject_cpumask);
cpumask_clear_cpu(cpu, mce_inject_cpumask);
}
if (!cpus_empty(mce_inject_cpumask))
apic->send_IPI_mask(&mce_inject_cpumask, NMI_VECTOR);
if (!cpumask_empty(mce_inject_cpumask))
apic->send_IPI_mask(mce_inject_cpumask, NMI_VECTOR);
start = jiffies;
while (!cpus_empty(mce_inject_cpumask)) {
while (!cpumask_empty(mce_inject_cpumask)) {
if (!time_before(jiffies, start + 2*HZ)) {
printk(KERN_ERR
"Timeout waiting for mce inject NMI %lx\n",
*cpus_addr(mce_inject_cpumask));
*cpumask_bits(mce_inject_cpumask));
break;
}
cpu_relax();
@@ -210,6 +210,8 @@ static ssize_t mce_write(struct file *filp, const char __user *ubuf,
static int inject_init(void)
{
if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL))
return -ENOMEM;
printk(KERN_INFO "Machine check injector initialized\n");
mce_chrdev_ops.write = mce_write;
register_die_notifier(&mce_raise_nb);