经过阅读(du)源码(ma),其(qi)实不少思路和(he)Android的匿名内存有(you)点(dian)相(xiang)似阅(yue)读本文之前就算不(bu)知(zhi)道(dao)dma_buf的设计思想也没关系,我(wo)不会(hui)仔细到每一行,我会注重其在gralloc服务中(zhong)的申请流(liu)程,看看ion是如何管理共(gong)享内(nei)存(cun),为(wei)什(shi)么要抛(pao)弃(qi)ashmem我(wo)们
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