blob: 83766a6bdee264f3c3a8da74bfa95ada55097062 [file] [log] [blame]
# Block layer core configuration
config BLOCK
bool "Enable the block layer" if EMBEDDED
default y
This permits the block layer to be removed from the kernel if it's not
needed (on some embedded devices for example). If this option is
disabled, then blockdev files will become unusable and some
filesystems (such as ext3) will become unavailable.
This option will also disable SCSI character devices and USB storage
since they make use of various block layer definitions and
Say Y here unless you know you really don't want to mount disks and
#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"
depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML
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.
bool "Support for tracing block io actions"
depends on SYSFS
select RELAY
select DEBUG_FS
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:
config LSF
bool "Support for Large Single Files"
depends on X86 || (MIPS && 32BIT) || PPC32 || ARCH_S390_31 || SUPERH || UML
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