2 # Block layer core configuration
4 #XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
7 bool "Support for Large Block Devices"
8 depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML
10 Say Y here if you want to attach large (bigger than 2TB) discs to
11 your machine, or if you want to have a raid or loopback device
12 bigger than 2TB. Otherwise say N.
14 config BLK_DEV_IO_TRACE
15 bool "Support for tracing block io actions"
20 Say Y here, if you want to be able to trace the block layer actions
21 on a given queue. Tracing allows you to see any traffic happening
22 on a block device queue. For more information (and the user space
23 support tools needed), fetch the blktrace app from:
25 git://brick.kernel.dk/data/git/blktrace.git
28 bool "Support for Large Single Files"
29 depends on X86 || (MIPS && 32BIT) || PPC32 || ARCH_S390_31 || SUPERH || UML
32 When CONFIG_LBD is disabled, say Y here if you want to
33 handle large file(bigger than 2TB), otherwise say N.
34 When CONFIG_LBD is enabled, Y is set automatically.
36 source block/Kconfig.iosched