1# 2# Block layer core configuration 3# 4#XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64 5#for instance. 6config LBD 7 bool "Support for Large Block Devices" 8 depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML 9 help 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. 13 14config BLK_DEV_IO_TRACE 15 bool "Support for tracing block io actions" 16 depends on SYSFS 17 select RELAY 18 select DEBUG_FS 19 help 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: 24 25 git://brick.kernel.dk/data/git/blktrace.git 26 27config LSF 28 bool "Support for Large Single Files" 29 depends on X86 || (MIPS && 32BIT) || PPC32 || ARCH_S390_31 || SUPERH || UML 30 help 31 Say Y here if you want to be able to handle very large files (bigger 32 than 2TB), otherwise say N. 33 34 If unsure, say Y. 35 36source block/Kconfig.iosched 37