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Commit 6f9a3c33 authored by Martin Schwidefsky's avatar Martin Schwidefsky Committed by Martin Schwidefsky
Browse files

[S390] cleanup s390 Kconfig 



Make use of def_bool and def_tristate where possible and add sensible
defaults to the config symbols where applicable. This shortens the
defconfig file by another ~40 lines.

Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 53ec24b1

arch/s390/Kconfig

+67 −62
Original line number Diff line number Diff line 
config SCHED_MC

	def_bool y

	depends on SMP



config MMU

	def_bool y



config ZONE_DMA

	def_bool y

	depends on 64BIT

	def_bool y if 64BIT



config LOCKDEP_SUPPORT

	def_bool y
@@ -25,12 +20,10 @@ config RWSEM_XCHGADD_ALGORITHM 
	def_bool y



config ARCH_HAS_ILOG2_U32

	bool

	default n

	def_bool n



config ARCH_HAS_ILOG2_U64

	bool

	default n

	def_bool n



config GENERIC_HWEIGHT

	def_bool y
@@ -42,9 +35,7 @@ config GENERIC_CLOCKEVENTS 
	def_bool y



config GENERIC_BUG

	bool

	depends on BUG

	default y

	def_bool y if BUG



config GENERIC_BUG_RELATIVE_POINTERS

	def_bool y
@@ -59,13 +50,10 @@ config ARCH_DMA_ADDR_T_64BIT 
	def_bool 64BIT



config GENERIC_LOCKBREAK

	bool

	default y

	depends on SMP && PREEMPT

	def_bool y if SMP && PREEMPT



config PGSTE

	bool

	default y if KVM

	def_bool y if KVM



config VIRT_CPU_ACCOUNTING

	def_bool y
@@ -129,8 +117,7 @@ config S390 
	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE



config SCHED_OMIT_FRAME_POINTER

	bool

	default y

	def_bool y



source "init/Kconfig"
@@ -143,20 +130,21 @@ comment "Processor type and features" 
source "kernel/time/Kconfig"



config 64BIT

	bool "64 bit kernel"

	def_bool y

	prompt "64 bit kernel"

	help

	  Select this option if you have an IBM z/Architecture machine

	  and want to use the 64 bit addressing mode.



config 32BIT

	bool

	default y if !64BIT

	def_bool y if !64BIT



config KTIME_SCALAR

	def_bool 32BIT



config SMP

	bool "Symmetric multi-processing support"

	def_bool y

	prompt "Symmetric multi-processing support"

	---help---

	  This enables support for systems with more than one CPU. If you have

	  a system with only one CPU, like most personal computers, say N. If
@@ -188,10 +176,10 @@ config NR_CPUS 
	  approximately sixteen kilobytes to the kernel image.



config HOTPLUG_CPU

	bool "Support for hot-pluggable CPUs"

	def_bool y

	prompt "Support for hot-pluggable CPUs"

	depends on SMP

	select HOTPLUG

	default n

	help

	  Say Y here to be able to turn CPUs off and on. CPUs

	  can be controlled through /sys/devices/system/cpu/cpu#.
@@ -207,14 +195,16 @@ config SCHED_MC 
	  increased overhead in some places.



config SCHED_BOOK

	bool "Book scheduler support"

	def_bool y

	prompt "Book scheduler support"

	depends on SMP && SCHED_MC

	help

	  Book scheduler support improves the CPU scheduler's decision making

	  when dealing with machines that have several books.



config MATHEMU

	bool "IEEE FPU emulation"

	def_bool y

	prompt "IEEE FPU emulation"

	depends on MARCH_G5

	help

	  This option is required for IEEE compliant floating point arithmetic
@@ -222,7 +212,8 @@ config MATHEMU 
	  need this.



config COMPAT

	bool "Kernel support for 31 bit emulation"

	def_bool y

	prompt "Kernel support for 31 bit emulation"

	depends on 64BIT

	select COMPAT_BINFMT_ELF

	help
@@ -232,16 +223,14 @@ config COMPAT 
	  executing 31 bit applications.  It is safe to say "Y".



config SYSVIPC_COMPAT

	bool

	depends on COMPAT && SYSVIPC

	default y

	def_bool y if COMPAT && SYSVIPC



config AUDIT_ARCH

	bool

	default y

	def_bool y



config S390_EXEC_PROTECT

	bool "Data execute protection"

	def_bool y

	prompt "Data execute protection"

	help

	  This option allows to enable a buffer overflow protection for user

	  space programs and it also selects the addressing mode option above.
@@ -301,7 +290,8 @@ config MARCH_Z196 
endchoice



config PACK_STACK

	bool "Pack kernel stack"

	def_bool y

	prompt "Pack kernel stack"

	help

	  This option enables the compiler option -mkernel-backchain if it

	  is available. If the option is available the compiler supports
@@ -314,7 +304,8 @@ config PACK_STACK 
	  Say Y if you are unsure.



config SMALL_STACK

	bool "Use 8kb for kernel stack instead of 16kb"

	def_bool n

	prompt "Use 8kb for kernel stack instead of 16kb"

	depends on PACK_STACK && 64BIT && !LOCKDEP

	help

	  If you say Y here and the compiler supports the -mkernel-backchain
@@ -326,7 +317,8 @@ config SMALL_STACK 
	  Say N if you are unsure.



config CHECK_STACK

	bool "Detect kernel stack overflow"

	def_bool y

	prompt "Detect kernel stack overflow"

	help

	  This option enables the compiler option -mstack-guard and

	  -mstack-size if they are available. If the compiler supports them
@@ -350,7 +342,8 @@ config STACK_GUARD 
	  512 for 64 bit.



config WARN_STACK

	bool "Emit compiler warnings for function with broken stack usage"

	def_bool n

	prompt "Emit compiler warnings for function with broken stack usage"

	help

	  This option enables the compiler options -mwarn-framesize and

	  -mwarn-dynamicstack. If the compiler supports these options it
@@ -388,8 +381,7 @@ config ARCH_SELECT_MEMORY_MODEL 
	def_bool y



config ARCH_ENABLE_MEMORY_HOTPLUG

	def_bool y

	depends on SPARSEMEM

	def_bool y if SPARSEMEM



config ARCH_ENABLE_MEMORY_HOTREMOVE

	def_bool y
@@ -402,7 +394,8 @@ source "mm/Kconfig" 
comment "I/O subsystem configuration"



config QDIO

	tristate "QDIO support"

	def_tristate y

	prompt "QDIO support"

	---help---

	  This driver provides the Queued Direct I/O base support for

	  IBM System z.
@@ -413,7 +406,8 @@ config QDIO 
	  If unsure, say Y.



config CHSC_SCH

	tristate "Support for CHSC subchannels"

	def_tristate y

	prompt "Support for CHSC subchannels"

	help

	  This driver allows usage of CHSC subchannels. A CHSC subchannel

	  is usually present on LPAR only.
@@ -431,7 +425,8 @@ config CHSC_SCH 
comment "Misc"



config IPL

	bool "Builtin IPL record support"

	def_bool y

	prompt "Builtin IPL record support"

	help

	  If you want to use the produced kernel to IPL directly from a

	  device, you have to merge a bootsector specific to the device
@@ -463,7 +458,8 @@ config FORCE_MAX_ZONEORDER 
	default "9"



config PFAULT

	bool "Pseudo page fault support"

	def_bool y

	prompt "Pseudo page fault support"

	help

	  Select this option, if you want to use PFAULT pseudo page fault

	  handling under VM. If running native or in LPAR, this option
@@ -475,7 +471,8 @@ config PFAULT 
	  this option.



config SHARED_KERNEL

	bool "VM shared kernel support"

	def_bool y

	prompt "VM shared kernel support"

	help

	  Select this option, if you want to share the text segment of the

	  Linux kernel between different VM guests. This reduces memory
@@ -486,7 +483,8 @@ config SHARED_KERNEL 
	  doing and want to exploit this feature.



config CMM

	tristate "Cooperative memory management"

	def_tristate n

	prompt "Cooperative memory management"

	help

	  Select this option, if you want to enable the kernel interface

	  to reduce the memory size of the system. This is accomplished
@@ -498,14 +496,16 @@ config CMM 
	  option.



config CMM_IUCV

	bool "IUCV special message interface to cooperative memory management"

	def_bool y

	prompt "IUCV special message interface to cooperative memory management"

	depends on CMM && (SMSGIUCV=y || CMM=SMSGIUCV)

	help

	  Select this option to enable the special message interface to

	  the cooperative memory management.



config APPLDATA_BASE

	bool "Linux - VM Monitor Stream, base infrastructure"

	def_bool n

	prompt "Linux - VM Monitor Stream, base infrastructure"

	depends on PROC_FS

	help

	  This provides a kernel interface for creating and updating z/VM APPLDATA
@@ -520,7 +520,8 @@ config APPLDATA_BASE 
	  The /proc entries can also be read from, showing the current settings.



config APPLDATA_MEM

	tristate "Monitor memory management statistics"

	def_tristate m

	prompt "Monitor memory management statistics"

	depends on APPLDATA_BASE && VM_EVENT_COUNTERS

	help

	  This provides memory management related data to the Linux - VM Monitor
@@ -536,7 +537,8 @@ config APPLDATA_MEM 
	  appldata_mem.o.



config APPLDATA_OS

	tristate "Monitor OS statistics"

	def_tristate m

	prompt "Monitor OS statistics"

	depends on APPLDATA_BASE

	help

	  This provides OS related data to the Linux - VM Monitor Stream, like
@@ -550,7 +552,8 @@ config APPLDATA_OS 
	  appldata_os.o.



config APPLDATA_NET_SUM

	tristate "Monitor overall network statistics"

	def_tristate m

	prompt "Monitor overall network statistics"

	depends on APPLDATA_BASE && NET

	help

	  This provides network related data to the Linux - VM Monitor Stream,
@@ -567,30 +570,32 @@ config APPLDATA_NET_SUM 
source kernel/Kconfig.hz



config S390_HYPFS_FS

	bool "s390 hypervisor file system support"

	def_bool y

	prompt "s390 hypervisor file system support"

	select SYS_HYPERVISOR

	default y

	help

	  This is a virtual file system intended to provide accounting

	  information in an s390 hypervisor environment.



config KEXEC

	bool "kexec system call"

	def_bool n

	prompt "kexec system call"

	help

	  kexec is a system call that implements the ability to shutdown your

	  current kernel, and to start another kernel.  It is like a reboot

	  but is independent of hardware/microcode support.



config ZFCPDUMP

	bool "zfcpdump support"

	def_bool n

	prompt "zfcpdump support"

	select SMP

	default n

	help

	  Select this option if you want to build an zfcpdump enabled kernel.

	  Refer to <file:Documentation/s390/zfcpdump.txt> for more details on this.



config S390_GUEST

bool "s390 guest support for KVM (EXPERIMENTAL)"

	def_bool y

	prompt "s390 guest support for KVM (EXPERIMENTAL)"

	depends on 64BIT && EXPERIMENTAL

	select VIRTIO

	select VIRTIO_RING
@@ -602,9 +607,9 @@ bool "s390 guest support for KVM (EXPERIMENTAL)" 
	  the default console.



config SECCOMP

	bool "Enable seccomp to safely compute untrusted bytecode"

	def_bool y

	prompt "Enable seccomp to safely compute untrusted bytecode"

	depends on PROC_FS

	default y

	help

	  This kernel feature is useful for number crunching applications

	  that may need to compute untrusted bytecode during their

arch/s390/Kconfig.debug

+3 −3
Original line number Diff line number Diff line 
menu "Kernel hacking"



config TRACE_IRQFLAGS_SUPPORT

	bool

	default y

	def_bool y



source "lib/Kconfig.debug"
@@ -19,7 +18,8 @@ config STRICT_DEVMEM 
	  If you are unsure, say Y.



config DEBUG_STRICT_USER_COPY_CHECKS

	bool "Strict user copy size checks"

	def_bool n

	prompt "Strict user copy size checks"

	---help---

	  Enabling this option turns a certain set of sanity checks for user

	  copy operations into compile time warnings.

arch/s390/defconfig

+56 −96
Original line number Diff line number Diff line
@@ -2,16 +2,12 @@ CONFIG_EXPERIMENTAL=y 
CONFIG_SYSVIPC=y

CONFIG_POSIX_MQUEUE=y

CONFIG_AUDIT=y

CONFIG_RCU_TRACE=y

CONFIG_IKCONFIG=y

CONFIG_IKCONFIG_PROC=y

CONFIG_CGROUPS=y

CONFIG_CGROUP_NS=y

CONFIG_SYSFS_DEPRECATED_V2=y

CONFIG_UTS_NS=y

CONFIG_IPC_NS=y

CONFIG_BLK_DEV_INITRD=y

# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set

# CONFIG_COMPAT_BRK is not set

CONFIG_PERF_EVENTS=y

CONFIG_SLAB=y

CONFIG_KPROBES=y

CONFIG_MODULES=y
@@ -20,24 +16,12 @@ CONFIG_MODVERSIONS=y 
CONFIG_DEFAULT_DEADLINE=y

CONFIG_NO_HZ=y

CONFIG_HIGH_RES_TIMERS=y

CONFIG_64BIT=y

CONFIG_SMP=y

CONFIG_NR_CPUS=32

CONFIG_COMPAT=y

CONFIG_S390_EXEC_PROTECT=y

CONFIG_PACK_STACK=y

CONFIG_CHECK_STACK=y

CONFIG_PREEMPT=y

CONFIG_MEMORY_HOTPLUG=y

CONFIG_MEMORY_HOTREMOVE=y

CONFIG_QDIO=y

CONFIG_CHSC_SCH=m

CONFIG_IPL=y

CONFIG_BINFMT_MISC=m

CONFIG_PFAULT=y

CONFIG_HZ_100=y

CONFIG_KEXEC=y

CONFIG_S390_GUEST=y

CONFIG_PM=y

CONFIG_HIBERNATION=y

CONFIG_PACKET=y
@@ -46,16 +30,15 @@ CONFIG_NET_KEY=y 
CONFIG_AFIUCV=m

CONFIG_INET=y

CONFIG_IP_MULTICAST=y

# CONFIG_INET_LRO is not set

CONFIG_IPV6=y

CONFIG_NETFILTER=y

CONFIG_NETFILTER_NETLINK_QUEUE=m

CONFIG_NETFILTER_NETLINK_LOG=m

CONFIG_NF_CONNTRACK=m

# CONFIG_NF_CT_PROTO_SCTP is not set

CONFIG_NET_SCTPPROBE=m

CONFIG_L2TP=m

CONFIG_L2TP_DEBUGFS=m

CONFIG_VLAN_8021Q=y

CONFIG_NET_SCHED=y

CONFIG_NET_SCH_CBQ=m

CONFIG_NET_SCH_PRIO=m

CONFIG_NET_SCH_MULTIQ=y

CONFIG_NET_SCH_RED=m

CONFIG_NET_SCH_SFQ=m

CONFIG_NET_SCH_TEQL=m
@@ -69,28 +52,14 @@ CONFIG_NET_CLS_U32=m 
CONFIG_CLS_U32_MARK=y

CONFIG_NET_CLS_RSVP=m

CONFIG_NET_CLS_RSVP6=m

CONFIG_NET_CLS_FLOW=m

CONFIG_NET_CLS_ACT=y

CONFIG_NET_ACT_POLICE=y

CONFIG_NET_ACT_NAT=m

CONFIG_CAN=m

CONFIG_CAN_RAW=m

CONFIG_CAN_BCM=m

CONFIG_CAN_VCAN=m

CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"

# CONFIG_FIRMWARE_IN_KERNEL is not set

CONFIG_BLK_DEV_LOOP=m

CONFIG_BLK_DEV_NBD=m

CONFIG_BLK_DEV_RAM=y

CONFIG_BLK_DEV_XIP=y

CONFIG_BLK_DEV_XPRAM=m

CONFIG_DASD=y

CONFIG_DASD_PROFILE=y

CONFIG_DASD_ECKD=y

CONFIG_DASD_FBA=y

CONFIG_DASD_DIAG=y

CONFIG_DASD_EER=y

CONFIG_VIRTIO_BLK=m

CONFIG_VIRTIO_BLK=y

CONFIG_SCSI=y

CONFIG_BLK_DEV_SD=y

CONFIG_CHR_DEV_ST=y
@@ -102,101 +71,92 @@ CONFIG_SCSI_CONSTANTS=y 
CONFIG_SCSI_LOGGING=y

CONFIG_SCSI_SCAN_ASYNC=y

CONFIG_ZFCP=y

CONFIG_SCSI_DH=m

CONFIG_SCSI_DH_RDAC=m

CONFIG_SCSI_DH_HP_SW=m

CONFIG_SCSI_DH_EMC=m

CONFIG_SCSI_DH_ALUA=m

CONFIG_SCSI_OSD_INITIATOR=m

CONFIG_SCSI_OSD_ULD=m

CONFIG_MD=y

CONFIG_BLK_DEV_MD=y

CONFIG_MD_LINEAR=m

CONFIG_MD_RAID0=m

CONFIG_MD_RAID1=m

CONFIG_MD_MULTIPATH=m

CONFIG_BLK_DEV_DM=y

CONFIG_DM_CRYPT=y

CONFIG_DM_SNAPSHOT=y

CONFIG_DM_MIRROR=y

CONFIG_DM_ZERO=y

CONFIG_DM_MULTIPATH=m

CONFIG_ZFCP_DIF=y

CONFIG_NETDEVICES=y

CONFIG_DUMMY=m

CONFIG_BONDING=m

CONFIG_EQUALIZER=m

CONFIG_TUN=m

CONFIG_VETH=m

CONFIG_NET_ETHERNET=y

CONFIG_LCS=m

CONFIG_CTCM=m

CONFIG_QETH=y

CONFIG_QETH_L2=y

CONFIG_QETH_L3=y

CONFIG_VIRTIO_NET=m

CONFIG_HW_RANDOM_VIRTIO=m

CONFIG_VIRTIO_NET=y

CONFIG_RAW_DRIVER=m

CONFIG_TN3270=y

CONFIG_TN3270_TTY=y

CONFIG_TN3270_FS=m

CONFIG_TN3270_CONSOLE=y

CONFIG_TN3215=y

CONFIG_TN3215_CONSOLE=y

CONFIG_SCLP_TTY=y

CONFIG_SCLP_CONSOLE=y

CONFIG_SCLP_VT220_TTY=y

CONFIG_SCLP_VT220_CONSOLE=y

CONFIG_SCLP_CPI=m

CONFIG_SCLP_ASYNC=m

CONFIG_S390_TAPE=m

CONFIG_S390_TAPE_BLOCK=y

CONFIG_S390_TAPE_34XX=m

CONFIG_ACCESSIBILITY=y

CONFIG_EXT2_FS=y

CONFIG_EXT3_FS=y

# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set

CONFIG_EXT4_FS=y

CONFIG_EXT4_FS_POSIX_ACL=y

CONFIG_EXT4_FS_SECURITY=y

CONFIG_PROC_KCORE=y

CONFIG_TMPFS=y

CONFIG_TMPFS_POSIX_ACL=y

CONFIG_NFS_FS=y

CONFIG_NFS_V3=y

CONFIG_NFSD=y

CONFIG_NFSD_V3=y

# CONFIG_NETWORK_FILESYSTEMS is not set

CONFIG_PARTITION_ADVANCED=y

CONFIG_IBM_PARTITION=y

CONFIG_DLM=m

CONFIG_MAGIC_SYSRQ=y

CONFIG_DEBUG_KERNEL=y

# CONFIG_SCHED_DEBUG is not set

CONFIG_DEBUG_SPINLOCK=y

CONFIG_DEBUG_MUTEXES=y

CONFIG_TIMER_STATS=y

CONFIG_PROVE_LOCKING=y

CONFIG_PROVE_RCU=y

CONFIG_LOCK_STAT=y

CONFIG_DEBUG_LOCKDEP=y

CONFIG_DEBUG_SPINLOCK_SLEEP=y

CONFIG_DEBUG_LIST=y

CONFIG_DEBUG_NOTIFIERS=y

# CONFIG_RCU_CPU_STALL_DETECTOR is not set

CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y

CONFIG_KPROBES_SANITY_TEST=y

CONFIG_CPU_NOTIFIER_ERROR_INJECT=m

CONFIG_LATENCYTOP=y

CONFIG_SYSCTL_SYSCALL_CHECK=y

CONFIG_SAMPLES=y

CONFIG_CRYPTO_FIPS=y

CONFIG_DEBUG_PAGEALLOC=y

# CONFIG_FTRACE is not set

# CONFIG_STRICT_DEVMEM is not set

CONFIG_CRYPTO_NULL=m

CONFIG_CRYPTO_CRYPTD=m

CONFIG_CRYPTO_AUTHENC=m

CONFIG_CRYPTO_TEST=m

CONFIG_CRYPTO_CCM=m

CONFIG_CRYPTO_GCM=m

CONFIG_CRYPTO_CBC=y

CONFIG_CRYPTO_CTS=m

CONFIG_CRYPTO_ECB=m

CONFIG_CRYPTO_LRW=m

CONFIG_CRYPTO_PCBC=m

CONFIG_CRYPTO_XTS=m

CONFIG_CRYPTO_XCBC=m

CONFIG_CRYPTO_VMAC=m

CONFIG_CRYPTO_MD4=m

CONFIG_CRYPTO_MICHAEL_MIC=m

CONFIG_CRYPTO_RMD128=m

CONFIG_CRYPTO_RMD160=m

CONFIG_CRYPTO_RMD256=m

CONFIG_CRYPTO_RMD320=m

CONFIG_CRYPTO_SHA256=m

CONFIG_CRYPTO_SHA512=m

CONFIG_CRYPTO_TGR192=m

CONFIG_CRYPTO_WP512=m

CONFIG_CRYPTO_ANUBIS=m

CONFIG_CRYPTO_ARC4=m

CONFIG_CRYPTO_BLOWFISH=m

CONFIG_CRYPTO_CAMELLIA=m

CONFIG_CRYPTO_CAST5=m

CONFIG_CRYPTO_CAST6=m

CONFIG_CRYPTO_DES=m

CONFIG_CRYPTO_FCRYPT=m

CONFIG_CRYPTO_KHAZAD=m

CONFIG_CRYPTO_SALSA20=m

CONFIG_CRYPTO_SEED=m

CONFIG_CRYPTO_SERPENT=m

CONFIG_CRYPTO_TEA=m

CONFIG_CRYPTO_TWOFISH=m

CONFIG_CRYPTO_DEFLATE=m

CONFIG_CRYPTO_ZLIB=m

CONFIG_CRYPTO_LZO=m

CONFIG_ZCRYPT=m

CONFIG_CRYPTO_SHA1_S390=m

CONFIG_CRYPTO_SHA256_S390=m

CONFIG_CRYPTO_SHA512_S390=m

CONFIG_CRC_T10DIF=y

CONFIG_CRC32=m

CONFIG_CRYPTO_DES_S390=m

CONFIG_CRYPTO_AES_S390=m

CONFIG_CRC7=m

CONFIG_KVM=m

CONFIG_VIRTIO_BALLOON=m
 
CONFIG_VIRTIO_BALLOON=y

arch/s390/kvm/Kconfig

+4 −3
Original line number Diff line number Diff line
@@ -4,8 +4,8 @@ 
source "virt/kvm/Kconfig"



menuconfig VIRTUALIZATION

	bool "Virtualization"

	default y

	def_bool y

	prompt "Virtualization"

	---help---

	  Say Y here to get to see options for using your Linux host to run other

	  operating systems inside virtual machines (guests).
@@ -16,7 +16,8 @@ menuconfig VIRTUALIZATION 
if VIRTUALIZATION



config KVM

	tristate "Kernel-based Virtual Machine (KVM) support"

	def_tristate y

	prompt "Kernel-based Virtual Machine (KVM) support"

	depends on HAVE_KVM && EXPERIMENTAL

	select PREEMPT_NOTIFIERS

	select ANON_INODES

drivers/s390/block/Kconfig

+16 −8
Original line number Diff line number Diff line
@@ -2,7 +2,8 @@ comment "S/390 block device drivers" 
	depends on S390 && BLOCK



config BLK_DEV_XPRAM

	tristate "XPRAM disk support"

	def_tristate m

	prompt "XPRAM disk support"

	depends on S390 && BLOCK

	help

	  Select this option if you want to use your expanded storage on S/390
@@ -12,13 +13,15 @@ config BLK_DEV_XPRAM 
	  xpram.  If unsure, say "N".



config DCSSBLK

	tristate "DCSSBLK support"

	def_tristate m

	prompt "DCSSBLK support"

	depends on S390 && BLOCK

	help

	  Support for dcss block device



config DASD

	tristate "Support for DASD devices"

	def_tristate y

	prompt "Support for DASD devices"

	depends on CCW && BLOCK

	select IOSCHED_DEADLINE

	help
@@ -27,28 +30,32 @@ config DASD 
	  natively on a single image or an LPAR.



config DASD_PROFILE

	bool "Profiling support for dasd devices"

	def_bool y

	prompt "Profiling support for dasd devices"

	depends on DASD

	help

	  Enable this option if you want to see profiling information

          in /proc/dasd/statistics.



config DASD_ECKD

	tristate "Support for ECKD Disks"

	def_tristate y

	prompt "Support for ECKD Disks"

	depends on DASD

	help

	  ECKD devices are the most commonly used devices. You should enable

	  this option unless you are very sure to have no ECKD device.



config DASD_FBA

	tristate "Support for FBA  Disks"

	def_tristate y

	prompt "Support for FBA  Disks"

	depends on DASD

	help

	  Select this option to be able to access FBA devices. It is safe to

	  say "Y".



config DASD_DIAG

	tristate "Support for DIAG access to Disks"

	def_tristate y

	prompt "Support for DIAG access to Disks"

	depends on DASD

	help

	  Select this option if you want to use Diagnose250 command to access
@@ -56,7 +63,8 @@ config DASD_DIAG 
	  say "N".



config DASD_EER

	bool "Extended error reporting (EER)"

	def_bool y

	prompt "Extended error reporting (EER)"

	depends on DASD

	help

	  This driver provides a character device interface to the