经过阅读源(yuan)码,其实不(bu)少(shao)思路和Android的匿名内存有点(dian)相似阅(yue)读本文之前(qian)就算不知(zhi)道dma_buf的设(she)计思想(xiang)也没关系,我不(bu)会仔细到(dao)每一行(hang),我会注重其在(zai)gralloc服务(wu)中的申请(qing)流(liu)程(cheng),看看ion是如何管理共(gong)享内存,为(wei)什(shi)么要抛(pao)弃(qi)ashmem我们
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