经过阅读(du)源码,其实(shi)不(bu)少思(si)路和(he)Android的匿名内(nei)存有点相似(si)阅读本文之前就算不知道dma_buf的设(she)计思想也没关(guan)系,我不会(hui)仔细到每一行,我会注(zhu)重其在gralloc服务(wu)中(zhong)的申请流(liu)程(cheng),看看ion是如(ru)何管(guan)理共(gong)享内(nei)存,为(wei)什么要抛(pao)弃ashmem我们(men)
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