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Date: Fri, 08 Oct 2010 03:49:01 +0400 From: Ilya Yanok <yanok@...raft.com> To: Dan Williams <dan.j.williams@...el.com> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, 'Vladimir K' <vlad@...raft.com>, Wolfgang Denk <wd@...x.de> Subject: Re: [RFC] CONFIG_NET_DMA can hang the system if DMA engine driver uses tasklets Hi Dan, 08.10.2010 3:33, Dan Williams wrote: >> 3. Try to free the descriptors not only from tasklet but also from the >> place they get requested. > > This is what ioatdma and iop-adma do i.e. process descriptor reclaim > from the allocation failure path. For example in ioat2_check_space_lock(): Thanks for the quick answer! I'll fix the mpc512x_dma driver then. Regards, Ilya. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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