On Fri, 2007-12-21 at 06:16 -0700, Matthew Wilcox wrote: > On Fri, Dec 21, 2007 at 10:33:26AM +0000, Alan Cox wrote: > > On Fri, 21 Dec 2007 13:30:08 +1100 > > Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> wrote: > > > > > The sense buffer ins scsi_cmnd can nowadays be DMA'ed into directly > > > by some low level drivers (that typically happens with USB mass > > > storage). > > > > Should that not be fixed in USB storage by using pci_alloc_coherent on the > > PCI device of the hub not peeing directly into kernel space ? > > That's what I said, but Ben seems fixated on this particular fix. That means more understanding of the SCSI code than I have right now and a _lot_ more time than I have right now. It's not only USB storage, it's anything that does DMA and uses the generic error handling. Ben. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
