## Block layer core configuration##XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64#for instance.config LBD bool "Support for Large Block Devices"
help Say Y here if you want to attach large (bigger than 2TB) discs to your machine, or if you want to have a raid or loopback device bigger than 2TB. Otherwise say N.
config BLK_DEV_IO_TRACE bool "Support for tracing block io actions" select RELAY select DEBUG_FS help Say Y here, if you want to be able to trace the block layer actions on a given queue. Tracing allows you to see any traffic happening on a block device queue. For more information (and the user space support tools needed), fetch the blktrace app from: git://brick.kernel.dk/data/git/blktrace.git
