经(jing)过阅读源码(ma),其实不(bu)少(shao)思路和Android的匿(ni)名内存有(you)点相似阅(yue)读本文(wen)之前就(jiu)算不知道dma_buf的设(she)计思想也没关系,我不会(hui)仔细到每一行,我(wo)会(hui)注(zhu)重其(qi)在(zai)gralloc服(fu)务中(zhong)的申请流程,看看ion是如(ru)何管理共享(xiang)内存,为什(shi)么要抛弃(qi)ashmem我们
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