经过(guo)阅(yue)读源码,其实不少思路和Android的匿名内存有点(dian)相似阅(yue)读本(ben)文之前(qian)就算不知道dma_buf的设计思想也(ye)没关系,我不(bu)会仔细到每(mei)一行,我会注重(chong)其在gralloc服务中(zhong)的(de)申(shen)请流程(cheng),看看ion是如(ru)何(he)管理共(gong)享内存,为(wei)什(shi)么要抛(pao)弃ashmem我(wo)们(men)
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