cpumask: use zalloc_cpumask_var() where possible
[linux-2.6.git] / kernel / trace / trace.c
index 6c0f6a8..411af37 100644 (file)
@@ -1984,11 +1984,9 @@ __tracing_open(struct inode *inode, struct file *file)
        if (current_trace)
                *iter->trace = *current_trace;
 
-       if (!alloc_cpumask_var(&iter->started, GFP_KERNEL))
+       if (!zalloc_cpumask_var(&iter->started, GFP_KERNEL))
                goto fail;
 
-       cpumask_clear(iter->started);
-
        if (current_trace && current_trace->print_max)
                iter->tr = &max_tr;
        else
@@ -4389,7 +4387,7 @@ __init static int tracer_alloc_buffers(void)
        if (!alloc_cpumask_var(&tracing_cpumask, GFP_KERNEL))
                goto out_free_buffer_mask;
 
-       if (!alloc_cpumask_var(&tracing_reader_cpumask, GFP_KERNEL))
+       if (!zalloc_cpumask_var(&tracing_reader_cpumask, GFP_KERNEL))
                goto out_free_tracing_cpumask;
 
        /* To save memory, keep the ring buffer size to its minimum */
@@ -4400,7 +4398,6 @@ __init static int tracer_alloc_buffers(void)
 
        cpumask_copy(tracing_buffer_mask, cpu_possible_mask);
        cpumask_copy(tracing_cpumask, cpu_all_mask);
-       cpumask_clear(tracing_reader_cpumask);
 
        /* TODO: make the number of buffers hot pluggable with CPUS */
        global_trace.buffer = ring_buffer_alloc(ring_buf_size,