Hi Vinod > > > > Current rcar_dmac_desc_put() is using list_add_tail() in order to > > > > push used descriptor to list of free descriptors, and next DMA transfer > > > > try to reuse it from this list. But because it is using *_tail(), > > > > this reuse effect can't be obtained without using all of them. > > > > For a longer-term solution, we should allocate hardware descriptors > > > > using GFP_KERNEL instead of GFP_NOWAIT, but it is difficult today. > > > > This patch uses list_add() instead of list_add_tail() for short-term > > > > solution. > > > > > > Applied, thanks > > > > Thanks, but where did you apply it to ? I can't find it in your tree. > > I changed my mind after this and felt that we should document above > in the changelog as well and replied to Kuninori few moments after this [1] > > Sorry if that wasn't clear that am not applying this. > > Please resend it with update changelog > > [1]: http://www.spinics.net/lists/dmaengine/msg09585.html OK, will do Best regards --- Kuninori Morimoto -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
