On Wed, Jun 10, 2015 at 02:12:02PM +0200, Christoph Hellwig wrote: > Btw, I don't think this actually is safe without refcounting your kmap > structure. > > The driver model ->remove callback can be called at any time, which > will ioremap the memory and remap the kmap structure. But at this > point a user might still be using it. Won't the device data structures be pinned by the refcount on the bdev? -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html