From: James Bottomley <[EMAIL PROTECTED]> Date: Tue, 02 Jan 2007 17:34:18 -0600
> Erm ... for a device driver, if we're preparing to do I/O on the page > something must have made the user caches coherent ... that can't be > kmap, because the driver might elect to DMA on the page ... unless > another component of this API is going to be to make dma_map_... also > flush the user cache? The DMA map/unmap/sync performs the necessary cache flushes. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
