经(jing)过阅读源码,其实(shi)不少思(si)路和Android的匿(ni)名(ming)内存有点(dian)相似阅(yue)读本文之(zhi)前(qian)就算(suan)不知道dma_buf的设(she)计(ji)思想也没关系(xi),我不会仔细到每一(yi)行,我会注重其在(zai)gralloc服(fu)务中的申请流程,看看ion是(shi)如(ru)何管(guan)理共(gong)享内存,为什么要(yao)抛(pao)弃ashmem我们
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