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On Wed, 9 Nov 2005, Jeff Garzik wrote: > > Has anybody put any thought towards how a userspace block driver would work? > > Consider a block device implemented via an SSL network connection. I don't > want to put SSL in the kernel, which means the only other alternative is to > pass data to/from a userspace daemon. I am afraid this is impossible without some heavy infrastructure work. You will almost inevitably deadlock. Yes, you can mlock() your driver, but that still will not tell the kernel that GFP_KERNEL must be replaced with GFP_NOIO if it is triggered by syscalls you are doing. Regards Oliver - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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