nfsd: track last inode only in use_wgather case

[safe/jmp/linux-2.6] / kernel / Kconfig.preempt

diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt
index 463f297..bf987b9 100644 (file)
--- a/kernel/Kconfig.preempt
+++ b/kernel/Kconfig.preempt
@@ -52,78 +52,3 @@ config PREEMPT
 
 endchoice
 
-choice
-       prompt "RCU Implementation"
-       default CLASSIC_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.
-
-config PREEMPT_RCU
-       bool "Preemptible 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.
-
-endchoice
-
-config RCU_TRACE
-       bool "Enable tracing for RCU"
-       depends on TREE_RCU || PREEMPT_RCU
-       help
-         This option provides tracing in RCU which presents stats
-         in debugfs for debugging RCU implementation.
-
-         Say Y here if you want to enable RCU tracing
-         Say N if you are unsure.
-
-config RCU_FANOUT
-       int "Tree-based hierarchical RCU fanout value"
-       range 2 64 if 64BIT
-       range 2 32 if !64BIT
-       depends on TREE_RCU
-       default 64 if 64BIT
-       default 32 if !64BIT
-       help
-         This option controls the fanout of hierarchical implementations
-         of RCU, allowing RCU to work efficiently on machines with
-         large numbers of CPUs.  This value must be at least the cube
-         root of NR_CPUS, which allows NR_CPUS up to 32,768 for 32-bit
-         systems and up to 262,144 for 64-bit systems.
-
-         Select a specific number if testing RCU itself.
-         Take the default if unsure.
-
-config RCU_FANOUT_EXACT
-       bool "Disable tree-based hierarchical RCU auto-balancing"
-       depends on TREE_RCU
-       default n
-       help
-         This option forces use of the exact RCU_FANOUT value specified,
-         regardless of imbalances in the hierarchy.  This is useful for
-         testing RCU itself, and might one day be useful on systems with
-         strong NUMA behavior.
-
-         Without RCU_FANOUT_EXACT, the code will balance the hierarchy.
-
-         Say n if unsure.
-
-