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Subject[patch 8/8] uml: depend on !USERMODE in drivers/block/Kconfig and drop arch/um/Kconfig_block
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From: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>

Finally, we end with this the need to update arch/um/Kconfig_block with
changes in drivers/block/Kconfig - we include directly that; UML-specific
entries were moved into it (they are very few).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
---

linux-2.6.11-paolo/arch/um/Kconfig | 2
linux-2.6.11-paolo/drivers/block/Kconfig | 57 ++++++++++++++++
linux-2.6.11/arch/um/Kconfig_block | 105 -------------------------------
3 files changed, 56 insertions(+), 108 deletions(-)

diff -L arch/um/Kconfig_block -puN arch/um/Kconfig_block~uml-kconfig-block-update /dev/null
--- linux-2.6.11/arch/um/Kconfig_block
+++ /dev/null 2005-01-10 11:39:51.461898480 +0100
@@ -1,105 +0,0 @@
-
-menu "Block Devices"
-
-config BLK_DEV_UBD
- bool "Virtual block device"
- help
- The User-Mode Linux port includes a driver called UBD which will let
- you access arbitrary files on the host computer as block devices.
- Unless you know that you do not need such virtual block devices say
- Y here.
-
-config BLK_DEV_UBD_SYNC
- bool "Always do synchronous disk IO for UBD"
- depends on BLK_DEV_UBD
- help
- Writes to the virtual block device are not immediately written to the
- host's disk; this may cause problems if, for example, the
- User-Mode Linux 'Virtual Machine' uses a journalling filesystem and
- the host computer crashes.
-
- Synchronous operation (i.e. always writing data to the host's disk
- immediately) is configurable on a per-UBD basis by using a special
- kernel command line option. Alternatively, you can say Y here to
- turn on synchronous operation by default for all block devices.
-
- If you're running a journalling file system (like reiserfs, for
- example) in your virtual machine, you will want to say Y here. If
- you care for the safety of the data in your virtual machine, Y is a
- wise choice too. In all other cases (for example, if you're just
- playing around with User-Mode Linux) you can choose N.
-
-config BLK_DEV_COW_COMMON
- bool
- default BLK_DEV_UBD
-
-config BLK_DEV_LOOP
- tristate "Loopback device support"
-
-config BLK_DEV_NBD
- tristate "Network block device support"
- depends on NET
-
-config BLK_DEV_RAM
- tristate "RAM disk support"
-
-config BLK_DEV_RAM_COUNT
- int "Default number of RAM disks" if BLK_DEV_RAM
- default "16"
-
-config BLK_DEV_RAM_SIZE
- int "Default RAM disk size"
- depends on BLK_DEV_RAM
- default "4096"
-
-config BLK_DEV_INITRD
- bool "Initial RAM disk (initrd) support"
- depends on BLK_DEV_RAM=y
-
-#Copied directly from drivers/block/Kconfig
-config INITRAMFS_SOURCE
- string "Source directory of cpio_list"
- default ""
- help
- This can be set to either a directory containing files, etc to be
- included in the initramfs archive, or a file containing newline
- separated entries.
-
- If it is a file, it should be in the following format:
- # a comment
- file <name> <location> <mode> <uid> <gid>
- dir <name> <mode> <uid> <gid>
- nod <name> <mode> <uid> <gid> <dev_type> <maj> <min>
-
- Where:
- <name> name of the file/dir/nod in the archive
- <location> location of the file in the current filesystem
- <mode> mode/permissions of the file
- <uid> user id (0=root)
- <gid> group id (0=root)
- <dev_type> device type (b=block, c=character)
- <maj> major number of nod
- <min> minor number of nod
-
- If you are not sure, leave it blank.
-
-config MMAPPER
- tristate "Example IO memory driver"
- depends on BROKEN
- help
- The User-Mode Linux port can provide support for IO Memory
- emulation with this option. This allows a host file to be
- specified as an I/O region on the kernel command line. That file
- will be mapped into UML's kernel address space where a driver can
- locate it and do whatever it wants with the memory, including
- providing an interface to it for UML processes to use.
-
- For more information, see
- <http://user-mode-linux.sourceforge.net/iomem.html>.
-
- If you'd like to be able to provide a simulated IO port space for
- User-Mode Linux processes, say Y. If unsure, say N.
-
-source "drivers/block/Kconfig.iosched"
-
-endmenu
diff -puN arch/um/Kconfig~uml-kconfig-block-update arch/um/Kconfig
--- linux-2.6.11/arch/um/Kconfig~uml-kconfig-block-update 2005-01-13 02:07:57.605331688 +0100
+++ linux-2.6.11-paolo/arch/um/Kconfig 2005-01-13 02:07:57.610330928 +0100
@@ -263,7 +263,7 @@ source "drivers/base/Kconfig"

source "arch/um/Kconfig_char"

-source "arch/um/Kconfig_block"
+source "drivers/block/Kconfig"

config NETDEVICES
bool
diff -puN drivers/block/Kconfig~uml-kconfig-block-update drivers/block/Kconfig
--- linux-2.6.11/drivers/block/Kconfig~uml-kconfig-block-update 2005-01-13 02:07:57.607331384 +0100
+++ linux-2.6.11-paolo/drivers/block/Kconfig 2005-01-13 02:12:59.998360960 +0100
@@ -6,7 +6,7 @@ menu "Block devices"

config BLK_DEV_FD
tristate "Normal floppy disk support"
- depends on (!ARCH_S390 && !M68K && !IA64) || Q40 || (SUN3X && BROKEN)
+ depends on (!ARCH_S390 && !M68K && !IA64 && !USERMODE) || Q40 || (SUN3X && BROKEN)
---help---
If you want to use the floppy disk drive(s) of your PC under Linux,
say Y. Information about this driver, especially important for IBM
@@ -208,6 +208,56 @@ config BLK_DEV_UMEM
one is chosen dynamically. Use "devfs" or look in /proc/devices
for the device number

+config BLK_DEV_UBD
+ bool "Virtual block device"
+ depends on USERMODE
+ ---help---
+ The User-Mode Linux port includes a driver called UBD which will let
+ you access arbitrary files on the host computer as block devices.
+ Unless you know that you do not need such virtual block devices say
+ Y here.
+
+config BLK_DEV_UBD_SYNC
+ bool "Always do synchronous disk IO for UBD"
+ depends on BLK_DEV_UBD
+ ---help---
+ Writes to the virtual block device are not immediately written to the
+ host's disk; this may cause problems if, for example, the User-Mode
+ Linux 'Virtual Machine' uses a journalling filesystem and the host
+ computer crashes.
+
+ Synchronous operation (i.e. always writing data to the host's disk
+ immediately) is configurable on a per-UBD basis by using a special
+ kernel command line option. Alternatively, you can say Y here to
+ turn on synchronous operation by default for all block devices.
+
+ If you're running a journalling file system (like reiserfs, for
+ example) in your virtual machine, you will want to say Y here. If
+ you care for the safety of the data in your virtual machine, Y is a
+ wise choice too. In all other cases (for example, if you're just
+ playing around with User-Mode Linux) you can choose N.
+
+config BLK_DEV_COW_COMMON
+ bool
+ default BLK_DEV_UBD
+
+config MMAPPER
+ tristate "Example IO memory driver (BROKEN)"
+ depends on USERMODE && BROKEN
+ ---help---
+ The User-Mode Linux port can provide support for IO Memory
+ emulation with this option. This allows a host file to be
+ specified as an I/O region on the kernel command line. That file
+ will be mapped into UML's kernel address space where a driver can
+ locate it and do whatever it wants with the memory, including
+ providing an interface to it for UML processes to use.
+
+ For more information, see
+ <http://user-mode-linux.sourceforge.net/iomem.html>.
+
+ If you'd like to be able to provide a simulated IO port space for
+ User-Mode Linux processes, say Y. If unsure, say N.
+
config BLK_DEV_LOOP
tristate "Loopback device support"
---help---
@@ -401,9 +451,11 @@ config INITRAMFS_ROOT_GID

If you are not sure, leave it set to "0".

+#XXX - it makes sense to enable this only for 32-bit subarch's, not for x86_64
+#for instance.
config LBD
bool "Support for Large Block Devices"
- depends on X86 || MIPS32 || PPC32 || ARCH_S390_31 || SUPERH
+ depends on X86 || MIPS32 || PPC32 || ARCH_S390_31 || SUPERH || USERMODE
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
@@ -411,6 +463,7 @@ config LBD

config CDROM_PKTCDVD
tristate "Packet writing on CD/DVD media"
+ depends on !USERMODE
help
If you have a CDROM drive that supports packet writing, say Y to
include preliminary support. It should work with any MMC/Mt Fuji
_
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