On Thu, Dec 16, 2010 at 05:44:58AM -0500, Christoph Hellwig wrote: > On Wed, Dec 15, 2010 at 10:02:57PM -0700, Matthew Wilcox wrote: > > > > I thought I'd take a crack at removing the host lock from uas. I think > > I can now switch to using GFP_NOIO (since interrupts are enabled by > > scsi_request_fn()), and I have to use _irq spinlocks to protect the list > > that is modified from interrupt context (same reason :-). > > ->qeuecommand can be called from software interrupt context, so you'll > need to stick to GFP_ATOMIC. Ah, I couldn't find a path that did that. Could you point it out to me? I'll send a patch to update that documentation. -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- 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
