lib/vsprintf: add %pC{,n,r} format specifiers for clocks

[linux-2.6-block.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 1173afc308ad7bbcf97c090da260f06d585c8165..17670573dda82d92a515d4519211e8bbe65b5f63 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -865,6 +865,19 @@ config SCHED_STACK_END_CHECK
          data corruption or a sporadic crash at a later stage once the region
          is examined. The runtime overhead introduced is minimal.
 
+config DEBUG_TIMEKEEPING
+       bool "Enable extra timekeeping sanity checking"
+       help
+         This option will enable additional timekeeping sanity checks
+         which may be helpful when diagnosing issues where timekeeping
+         problems are suspected.
+
+         This may include checks in the timekeeping hotpaths, so this
+         option may have a (very small) performance impact to some
+         workloads.
+
+         If unsure, say N.
+
 config TIMER_STATS
        bool "Collect kernel timers statistics"
        depends on DEBUG_KERNEL && PROC_FS
@@ -1180,16 +1193,7 @@ config DEBUG_CREDENTIALS
 menu "RCU Debugging"
 
 config PROVE_RCU
-       bool "RCU debugging: prove RCU correctness"
-       depends on PROVE_LOCKING
-       default n
-       help
-        This feature enables lockdep extensions that check for correct
-        use of RCU APIs.  This is currently under development.  Say Y
-        if you want to debug RCU usage or help work on the PROVE_RCU
-        feature.
-
-        Say N if you are unsure.
+       def_bool PROVE_LOCKING
 
 config PROVE_RCU_REPEATEDLY
        bool "RCU debugging: don't disable PROVE_RCU on first splat"
@@ -1756,6 +1760,18 @@ config TEST_UDELAY
 
          If unsure, say N.
 
+config MEMTEST
+       bool "Memtest"
+       depends on HAVE_MEMBLOCK
+       ---help---
+         This option adds a kernel parameter 'memtest', which allows memtest
+         to be set.
+               memtest=0, mean disabled; -- default
+               memtest=1, mean do 1 test pattern;
+               ...
+               memtest=17, mean do 17 test patterns.
+         If you are unsure how to answer this question, answer N.
+
 source "samples/Kconfig"
 
 source "lib/Kconfig.kgdb"