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-rw-r--r--tools/perf/util/include/linux/list.h26
1 files changed, 26 insertions, 0 deletions
diff --git a/tools/perf/util/include/linux/list.h b/tools/perf/util/include/linux/list.h
new file mode 100644
index 00000000..f5ca26e5
--- /dev/null
+++ b/tools/perf/util/include/linux/list.h
@@ -0,0 +1,26 @@
+#include "../../../../include/linux/list.h"
+
+#ifndef PERF_LIST_H
+#define PERF_LIST_H
+/**
+ * list_del_range - deletes range of entries from list.
+ * @begin: first element in the range to delete from the list.
+ * @end: last element in the range to delete from the list.
+ * Note: list_empty on the range of entries does not return true after this,
+ * the entries is in an undefined state.
+ */
+static inline void list_del_range(struct list_head *begin,
+ struct list_head *end)
+{
+ begin->prev->next = end->next;
+ end->next->prev = begin->prev;
+}
+
+/**
+ * list_for_each_from - iterate over a list from one of its nodes
+ * @pos: the &struct list_head to use as a loop cursor, from where to start
+ * @head: the head for your list.
+ */
+#define list_for_each_from(pos, head) \
+ for (; prefetch(pos->next), pos != (head); pos = pos->next)
+#endif