On Mon, Nov 16, 2015 at 01:29:58PM -0500, Alan Stern wrote: > A proposed patch has been posted > (http://marc.info/?l=linux-usb&m=144763502829452&w=2), but I'm not > convinced that it is the best approach. For instance, it always tries > to get contiguous pages and so is vulnerable to memory fragmentation. What Alan says is right, but there's one additional piece of information: The patch also makes allocation an up-front issue (the memory block allocated can be reused across transfers), so if you can allocate at the start of the program, you will not be affected by later fragmentation. /* Steinar */ -- Homepage: https://www.sesse.net/ -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
