经过(guo)阅(yue)读源码,其(qi)实不少思路(lu)和Android的匿名内存有点相似阅读(du)本文之前(qian)就算不知(zhi)道dma_buf的设(she)计(ji)思想也没关系,我(wo)不会仔细(xi)到(dao)每(mei)一行,我会注(zhu)重其(qi)在(zai)gralloc服务中的申请流程(cheng),看看ion是如(ru)何管理共(gong)享内(nei)存,为(wei)什么要抛(pao)弃ashmem我们(men)
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