crypto: ghash-intel - Fix building failure on x86_32

[pandora-kernel.git] / init / Kconfig

diff --git a/init/Kconfig b/init/Kconfig
index 3f7e609..8e8b76d 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -316,38 +316,28 @@ choice
        prompt "RCU Implementation"
        default TREE_RCU
 
-config CLASSIC_RCU
-       bool "Classic RCU"
-       help
-         This option selects the classic RCU implementation that is
-         designed for best read-side performance on non-realtime
-         systems.
-
-         Select this option if you are unsure.
-
 config TREE_RCU
        bool "Tree-based hierarchical RCU"
        help
          This option selects the RCU implementation that is
          designed for very large SMP system with hundreds or
-         thousands of CPUs.
+         thousands of CPUs.  It also scales down nicely to
+         smaller systems.
 
-config PREEMPT_RCU
-       bool "Preemptible RCU"
+config TREE_PREEMPT_RCU
+       bool "Preemptable tree-based hierarchical RCU"
        depends on PREEMPT
        help
-         This option reduces the latency of the kernel by making certain
-         RCU sections preemptible. Normally RCU code is non-preemptible, if
-         this option is selected then read-only RCU sections become
-         preemptible. This helps latency, but may expose bugs due to
-         now-naive assumptions about each RCU read-side critical section
-         remaining on a given CPU through its execution.
+         This option selects the RCU implementation that is
+         designed for very large SMP systems with hundreds or
+         thousands of CPUs, but for which real-time response
+         is also required.
 
 endchoice
 
 config RCU_TRACE
        bool "Enable tracing for RCU"
-       depends on TREE_RCU || PREEMPT_RCU
+       depends on TREE_RCU || TREE_PREEMPT_RCU
        help
          This option provides tracing in RCU which presents stats
          in debugfs for debugging RCU implementation.
@@ -359,7 +349,7 @@ config RCU_FANOUT
        int "Tree-based hierarchical RCU fanout value"
        range 2 64 if 64BIT
        range 2 32 if !64BIT
-       depends on TREE_RCU
+       depends on TREE_RCU || TREE_PREEMPT_RCU
        default 64 if 64BIT
        default 32 if !64BIT
        help
@@ -374,7 +364,7 @@ config RCU_FANOUT
 
 config RCU_FANOUT_EXACT
        bool "Disable tree-based hierarchical RCU auto-balancing"
-       depends on TREE_RCU
+       depends on TREE_RCU || TREE_PREEMPT_RCU
        default n
        help
          This option forces use of the exact RCU_FANOUT value specified,
@@ -387,18 +377,12 @@ config RCU_FANOUT_EXACT
          Say N if unsure.
 
 config TREE_RCU_TRACE
-       def_bool RCU_TRACE && TREE_RCU
-       select DEBUG_FS
-       help
-         This option provides tracing for the TREE_RCU implementation,
-         permitting Makefile to trivially select kernel/rcutree_trace.c.
-
-config PREEMPT_RCU_TRACE
-       def_bool RCU_TRACE && PREEMPT_RCU
+       def_bool RCU_TRACE && ( TREE_RCU || TREE_PREEMPT_RCU )
        select DEBUG_FS
        help
-         This option provides tracing for the PREEMPT_RCU implementation,
-         permitting Makefile to trivially select kernel/rcupreempt_trace.c.
+         This option provides tracing for the TREE_RCU and
+         TREE_PREEMPT_RCU implementations, permitting Makefile to
+         trivially select kernel/rcutree_trace.c.
 
 endmenu # "RCU Subsystem"