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经过(guò )阅读源码,其实不少思(sī )路和Android的匿(nì )名内存有(yǒu )点(diǎn )相似(sì )阅读本文(wén )之前就(jiù )算(suàn )不(bú )知道dma_buf的设计思(sī )想也没关系,我不(bú )会(huì )仔细(xì )到(dào )每一行,我会(huì )注重(chóng )其在gralloc服务中(zhōng )的申请(qǐng )流程,看(kàn )看ion是如何管(guǎn )理共(gòng )享(xiǎng )内存(cún ),为什么要抛弃(qì )ashmem我们(men )

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