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经过阅(yuè )读源码(mǎ ),其实不少思(sī )路和Android的匿名内存有点相似(sì )阅(yuè )读(dú )本文之前就算不知道(dào )dma_buf的设(shè )计(jì )思(sī )想(xiǎng )也没关系(xì ),我(wǒ )不(bú )会仔(zǎi )细到(dào )每一行,我(wǒ )会(huì )注重其在gralloc服务(wù )中的申(shēn )请(qǐng )流(liú )程,看看ion是如何(hé )管(guǎn )理共享内存(cún ),为什(shí )么要抛弃ashmem我们

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