block: implement CONFIG_DEBUG_BLOCK_EXT_DEVT

[karo-tx-linux.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 8b5a7d304a5f5709cfb97436396916fc074db428..5a536f703a833a23aa358e5b157c993644e1f87e 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -394,7 +394,7 @@ config LOCKDEP
        bool
        depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
        select STACKTRACE
-       select FRAME_POINTER if !X86 && !MIPS
+       select FRAME_POINTER if !X86 && !MIPS && !PPC
        select KALLSYMS
        select KALLSYMS_ALL
 
@@ -624,6 +624,22 @@ config BACKTRACE_SELF_TEST
 
          Say N if you are unsure.
 
+config DEBUG_BLOCK_EXT_DEVT
+        bool "Force extended block device numbers and spread them"
+       depends on DEBUG_KERNEL
+       depends on BLOCK
+       default y
+       help
+         Conventionally, block device numbers are allocated from
+         predetermined contiguous area.  However, extended block area
+         may introduce non-contiguous block device numbers.  This
+         option forces most block device numbers to be allocated from
+         the extended space and spreads them to discover kernel or
+         userland code paths which assume predetermined contiguous
+         device number allocation.
+
+         Say N if you are unsure.
+
 config LKDTM
        tristate "Linux Kernel Dump Test Tool Module"
        depends on DEBUG_KERNEL
@@ -676,13 +692,13 @@ config FAULT_INJECTION_STACKTRACE_FILTER
        depends on FAULT_INJECTION_DEBUG_FS && STACKTRACE_SUPPORT
        depends on !X86_64
        select STACKTRACE
-       select FRAME_POINTER
+       select FRAME_POINTER if !PPC
        help
          Provide stacktrace filter for fault-injection capabilities
 
 config LATENCYTOP
        bool "Latency measuring infrastructure"
-       select FRAME_POINTER if !MIPS
+       select FRAME_POINTER if !MIPS && !PPC
        select KALLSYMS
        select KALLSYMS_ALL
        select STACKTRACE