经过阅读(du)源码(ma),其(qi)实(shi)不(bu)少(shao)思(si)路和(he)Android的(de)匿名内存(cun)有点(dian)相(xiang)似阅读本(ben)文之前(qian)就算不知道dma_buf的设(she)计(ji)思(si)想也没关系,我不会仔细到每一(yi)行,我会注重其在gralloc服务中(zhong)的申请流程,看看ion是如何管(guan)理共(gong)享内存,为什(shi)么(me)要抛弃ashmem我们
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