What does `pos` mean in the Linux kernel's list.h

Question

The Linux kernel's list.h provides a number of macros for iterating over a its own linked list implementation. For example:

/**
 * list_for_each    -   iterate over a list
 * @pos:    the &struct list_head to use as a loop cursor.
 * @head:   the head for your list.
 */
#define list_for_each(pos, head) \
    for (pos = (head)->next; pos != (head); pos = pos->next)

What is the name of the pos parameter attempting to abbreviate? (What does pos stand for / mean?)

Answer 1

表示“位置”，如列表中的当前位置。

Answer 2

它是“ position”的缩写，表示当前光标位置。