#for instance.
config LBD
bool "Support for Large Block Devices"
- depends on X86 || (MIPS && 32BIT) || PPC32 || ARCH_S390_31 || SUPERH || UML
+ depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML
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"
+ depends on SYSFS
+ 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
+
+config LSF
+ bool "Support for Large Single Files"
+ depends on X86 || (MIPS && 32BIT) || PPC32 || ARCH_S390_31 || SUPERH || UML
+ help
+ Say Y here if you want to be able to handle very large files (bigger
+ than 2TB), otherwise say N.
+
+ If unsure, say Y.
+
source block/Kconfig.iosched