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Jens Axboe3a65dfe2005-11-04 08:43:35 +01001#
2# Block layer core configuration
3#
4#XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
5#for instance.
6config LBD
7 bool "Support for Large Block Devices"
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -08008 depends on X86 || (MIPS && 32BIT) || PPC32 || (S390 && !64BIT) || SUPERH || UML
Jens Axboe3a65dfe2005-11-04 08:43:35 +01009 help
10 Say Y here if you want to attach large (bigger than 2TB) discs to
11 your machine, or if you want to have a raid or loopback device
12 bigger than 2TB. Otherwise say N.
13
Jens Axboe2056a782006-03-23 20:00:26 +010014config BLK_DEV_IO_TRACE
15 bool "Support for tracing block io actions"
16 select RELAY
17 select DEBUG_FS
18 help
19 Say Y here, if you want to be able to trace the block layer actions
20 on a given queue. Tracing allows you to see any traffic happening
21 on a block device queue. For more information (and the user space
22 support tools needed), fetch the blktrace app from:
23
24 git://brick.kernel.dk/data/git/blktrace.git
25
Jens Axboe3a65dfe2005-11-04 08:43:35 +010026source block/Kconfig.iosched