X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=block%2FKconfig;h=285935134bcd02cedf51cd1330ea1460aca4ca14;hb=cefe658bca9cf1d4af841c45d170ebd0f881889e;hp=43ca070dc0f81b58ba2a2757bf907acce36b02bc;hpb=9ae21d1bb376436285cd5346d3e4b3655d6dd1b9;p=linux-2.6

diff --git a/block/Kconfig b/block/Kconfig
index 43ca070dc0..285935134b 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -1,11 +1,27 @@
 #
 # Block layer core configuration
 #
-#XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
-#for instance.
+menuconfig 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
@@ -13,6 +29,7 @@ config LBD
 
 config BLK_DEV_IO_TRACE
 	bool "Support for tracing block io actions"
+	depends on SYSFS
 	select RELAY
 	select DEBUG_FS
 	help
@@ -25,11 +42,13 @@ config BLK_DEV_IO_TRACE
 
 config LSF
 	bool "Support for Large Single Files"
-	depends on X86 || (MIPS && 32BIT) || PPC32 || ARCH_S390_31 || SUPERH || UML
-	default n
+	depends on !64BIT
 	help
-	  When CONFIG_LBD is disabled, say Y here if you want to
-	  handle large file(bigger than 2TB), otherwise say N.
-	  When CONFIG_LBD is enabled, Y is set automatically.
+	  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 # BLOCK
 
 source block/Kconfig.iosched