51d7513a8a
It's too easy for people to shoot themselves in the foot, and it only makes sense for embedded folks anyway. Signed-off-by: Jens Axboe <axboe@kernel.dk>
56 lines
1.7 KiB
Text
56 lines
1.7 KiB
Text
#
|
|
# Block layer core configuration
|
|
#
|
|
config BLOCK
|
|
bool "Enable the block layer" if EMBEDDED
|
|
default y
|
|
help
|
|
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
|
|
facilities.
|
|
|
|
Say Y here unless you know you really don't want to mount disks and
|
|
suchlike.
|
|
|
|
if BLOCK
|
|
|
|
#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
|
|
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.
|
|
|
|
endif
|
|
|
|
source block/Kconfig.iosched
|