#
# Block layer core configuration
#
-#XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
-#for instance.
+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
+
config LBD
bool "Support for Large Block Devices"
- depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML
+ depends on !64BIT
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
config BLK_DEV_IO_TRACE
bool "Support for tracing block io actions"
+ depends on SYSFS
select RELAY
select DEBUG_FS
help
git://brick.kernel.dk/data/git/blktrace.git
+config LSF
+ bool "Support for Large Single Files"
+ depends on !64BIT
+ 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