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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
#
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# Block layer core configuration
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#
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config BLOCK
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bool "Enable the block layer" if EMBEDDED
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default y
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help
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This permits the block layer to be removed from the kernel if it's not
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needed (on some embedded devices for example). If this option is
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disabled, then blockdev files will become unusable and some
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filesystems (such as ext3) will become unavailable.
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This option will also disable SCSI character devices and USB storage
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since they make use of various block layer definitions and
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facilities.
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Say Y here unless you know you really don't want to mount disks and
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suchlike.
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if BLOCK
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#XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
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#for instance.
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config LBD
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bool "Support for Large Block Devices"
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depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML
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help
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Say Y here if you want to attach large (bigger than 2TB) discs to
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your machine, or if you want to have a raid or loopback device
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bigger than 2TB. Otherwise say N.
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config BLK_DEV_IO_TRACE
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bool "Support for tracing block io actions"
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depends on SYSFS
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select RELAY
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select DEBUG_FS
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help
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Say Y here, if you want to be able to trace the block layer actions
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on a given queue. Tracing allows you to see any traffic happening
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on a block device queue. For more information (and the user space
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support tools needed), fetch the blktrace app from:
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git://brick.kernel.dk/data/git/blktrace.git
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config LSF
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bool "Support for Large Single Files"
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depends on X86 || (MIPS && 32BIT) || PPC32 || ARCH_S390_31 || SUPERH || UML
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help
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Say Y here if you want to be able to handle very large files (bigger
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than 2TB), otherwise say N.
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If unsure, say Y.
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endif
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source block/Kconfig.iosched
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