X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=block%2FKconfig;h=a50f481116477e9552c82db45f728bc067dbbbbd;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=b6f5f0a79655a3de0125af945682f91bf92bc726;hpb=16cf0ec7408f389279d413869e94c1a351392f97;p=linux-2.6.git

diff --git a/block/Kconfig b/block/Kconfig
index b6f5f0a79..a50f48111 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.
+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
@@ -26,11 +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
+	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