diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/oprofile/cpu_buffer.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c index 5a178065cfa0..67bcc1c95e60 100644 --- a/drivers/oprofile/cpu_buffer.c +++ b/drivers/oprofile/cpu_buffer.c @@ -39,7 +39,7 @@ void free_cpu_buffers(void) { int i; - for_each_online_cpu(i) { + for_each_possible_cpu(i) { vfree(per_cpu(cpu_buffer, i).buffer); per_cpu(cpu_buffer, i).buffer = NULL; } @@ -51,7 +51,7 @@ int alloc_cpu_buffers(void) unsigned long buffer_size = fs_cpu_buffer_size; - for_each_online_cpu(i) { + for_each_possible_cpu(i) { struct oprofile_cpu_buffer *b = &per_cpu(cpu_buffer, i); b->buffer = vmalloc_node(sizeof(struct op_sample) * buffer_size, @@ -350,6 +350,11 @@ static void wq_sync_buffer(struct work_struct *work) if (b->cpu != smp_processor_id()) { printk(KERN_DEBUG "WQ on CPU%d, prefer CPU%d\n", smp_processor_id(), b->cpu); + + if (!cpu_online(b->cpu)) { + cancel_delayed_work(&b->work); + return; + } } sync_buffer(b->cpu); |