Commit 65d37086 authored Jan 29, 2009 by Mike Galbraith Committed by Ingo Molnar Jan 29, 2009

perfcounters: fix refcounting bug



don't kfree in use counters.

Running...

	while true; do perfstat -e 1 -c true; done

...on all cores for a while doesn't seem to be eating ram, and my oops
is gone.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent bb3f0b59

kernel/perf_counter.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -1934,6 +1934,7 @@ __perf_counter_exit_task(struct task_struct *child,
	}		}
	}		}

			if (!child_counter->filp \|\| !atomic_long_read(&child_counter->filp->f_count))
	kfree(child_counter);		kfree(child_counter);
	}		}