On Thu, Jul 25, 2013 at 10:22:50AM +0800, Xiang Wang wrote: Btw its generally a good idea to remove the parts not required for further discussion
> Would you please explain a little more about why we should use > GFP_NOWAIT here? This memory is not dedicated for DMA controller. Do > we have special reasons to use GFP_NOWAIT? Thanks! There are few reasons - the dma requests can be triggered from atomic context - so for above you can argue to use the GFP_ATOMIC and the guideline for dma drivers [1] was discussed briefly ~Vinod [1]: http://lkml.indiana.edu/hypermail/linux/kernel/0911.1/02316.html -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
