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-rw-r--r--kernel/events/uprobes.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 61d0fa6..4d04523 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -614,14 +614,19 @@ static int prepare_uprobe(struct uprobe *uprobe, struct file *file,
static bool filter_chain(struct uprobe *uprobe)
{
- /*
- * TODO:
- * for_each_consumer(uc)
- * if (uc->filter(...))
- * return true;
- * return false;
- */
- return uprobe->consumers != NULL;
+ struct uprobe_consumer *uc;
+ bool ret = false;
+
+ down_read(&uprobe->consumer_rwsem);
+ for (uc = uprobe->consumers; uc; uc = uc->next) {
+ /* TODO: ret = uc->filter(...) */
+ ret = true;
+ if (ret)
+ break;
+ }
+ up_read(&uprobe->consumer_rwsem);
+
+ return ret;
}
static int
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