[S390] convert s390 to generic IPI infrastructure

[linux-2.6-omap-h63xx.git] / arch / s390 / Kconfig

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 70b7645ce745aa03863360201183a832aec3f130..7899f0bce6582fa15414852637f07f79116ad2fe 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -43,6 +43,9 @@ config GENERIC_HWEIGHT
 config GENERIC_TIME
        def_bool y
 
+config GENERIC_TIME_VSYSCALL
+       def_bool y
+
 config GENERIC_CLOCKEVENTS
        def_bool y
 
@@ -70,6 +73,7 @@ mainmenu "Linux Kernel Configuration"
 
 config S390
        def_bool y
+       select USE_GENERIC_SMP_HELPERS if SMP
        select HAVE_OPROFILE
        select HAVE_KPROBES
        select HAVE_KRETPROBES
@@ -241,19 +245,17 @@ config PACK_STACK
          Say Y if you are unsure.
 
 config SMALL_STACK
-       bool "Use 4kb/8kb for kernel stack instead of 8kb/16kb"
-       depends on PACK_STACK && !LOCKDEP
+       bool "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
-         option the kernel will use a smaller kernel stack size. For 31 bit
-         the reduced size is 4kb instead of 8kb and for 64 bit it is 8kb
-         instead of 16kb. This allows to run more thread on a system and
-         reduces the pressure on the memory management for higher order
-         page allocations.
+         option the kernel will use a smaller kernel stack size. The reduced
+         size is 8kb instead of 16kb. This allows to run more threads on a
+         system and reduces the pressure on the memory management for higher
+         order page allocations.
 
          Say N if you are unsure.
 
-
 config CHECK_STACK
        bool "Detect kernel stack overflow"
        help
@@ -384,7 +386,7 @@ config IPL
 choice
        prompt "IPL method generated into head.S"
        depends on IPL
-       default IPL_TAPE
+       default IPL_VM
        help
          Select "tape" if you want to IPL the image from a Tape.