On Mon, 8 Jun 2009, Al Viro wrote: > > Sure, even though I'm not at all certain that copy_from_user() is that easy. > We can make locking current->mm in there interruptible, all right, but that's > only a part of the answer - even aside of the allocations, we'd need vma > ->fault() interruptible as well, which leads to interruptible instances of > ->readpage(), with all the fun _that_ would be. We already have all that - the NFS people wanted it. More importantly, you don't actually need to interrupt readpage itself - you just need to stop _waiting_ on it. So in your fault handler, just stop waiting, and instead just return FAULT_RETRY or whatever. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
