rcu: Remove redundant TREE_PREEMPT_RCU config option
authorPranith Kumar <bobby.prani@gmail.com>
Mon, 22 Sep 2014 18:00:48 +0000 (14:00 -0400)
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 29 Oct 2014 17:20:05 +0000 (10:20 -0700)
PREEMPT_RCU and TREE_PREEMPT_RCU serve the same function after
TINY_PREEMPT_RCU has been removed. This patch removes TREE_PREEMPT_RCU
and uses PREEMPT_RCU config option in its place.

Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
48 files changed:
Documentation/RCU/rcu.txt
Documentation/RCU/stallwarn.txt
Documentation/RCU/trace.txt
Documentation/RCU/whatisRCU.txt
include/linux/init_task.h
include/linux/rcupdate.h
include/linux/sched.h
include/trace/events/rcu.h
init/Kconfig
kernel/rcu/Makefile
kernel/rcu/tree.h
kernel/rcu/tree_plugin.h
kernel/rcu/update.c
lib/Kconfig.debug
tools/testing/selftests/rcutorture/configs/rcu/TREE01
tools/testing/selftests/rcutorture/configs/rcu/TREE02
tools/testing/selftests/rcutorture/configs/rcu/TREE02-T
tools/testing/selftests/rcutorture/configs/rcu/TREE03
tools/testing/selftests/rcutorture/configs/rcu/TREE08
tools/testing/selftests/rcutorture/configs/rcu/TREE08-T
tools/testing/selftests/rcutorture/configs/rcu/TREE09
tools/testing/selftests/rcutorture/configs/rcu/v0.0/P1-S-T-NH-SD-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v0.0/P2-2-t-nh-sd-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v0.0/P3-3-T-nh-SD-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v0.0/P4-A-t-NH-sd-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v0.0/P5-U-T-NH-sd-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P1-S-T-NH-SD-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P2-2-t-nh-sd-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P3-3-T-nh-SD-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P4-A-t-NH-sd-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P5-U-T-NH-sd-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P6---t-nh-SD-smp-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-all
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-HP-none
tools/testing/selftests/rcutorture/configs/rcu/v3.12/P7-4-T-NH-SD-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.3/P1-S-T-NH-SD-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v3.3/P2-2-t-nh-sd-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.3/P3-3-T-nh-SD-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.3/P4-A-t-NH-sd-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v3.3/P5-U-T-NH-sd-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.5/P1-S-T-NH-SD-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v3.5/P2-2-t-nh-sd-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.5/P3-3-T-nh-SD-SMP-hp
tools/testing/selftests/rcutorture/configs/rcu/v3.5/P4-A-t-NH-sd-SMP-HP
tools/testing/selftests/rcutorture/configs/rcu/v3.5/P5-U-T-NH-sd-SMP-hp
tools/testing/selftests/rcutorture/doc/TINY_RCU.txt
tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt

index bf77833..745f429 100644 (file)
@@ -36,7 +36,7 @@ o     How can the updater tell when a grace period has completed
        executed in user mode, or executed in the idle loop, we can
        safely free up that item.
 
-       Preemptible variants of RCU (CONFIG_TREE_PREEMPT_RCU) get the
+       Preemptible variants of RCU (CONFIG_PREEMPT_RCU) get the
        same effect, but require that the readers manipulate CPU-local
        counters.  These counters allow limited types of blocking within
        RCU read-side critical sections.  SRCU also uses CPU-local
@@ -81,7 +81,7 @@ o     I hear that RCU is patented?  What is with that?
 o      I hear that RCU needs work in order to support realtime kernels?
 
        This work is largely completed.  Realtime-friendly RCU can be
-       enabled via the CONFIG_TREE_PREEMPT_RCU kernel configuration
+       enabled via the CONFIG_PREEMPT_RCU kernel configuration
        parameter.  However, work is in progress for enabling priority
        boosting of preempted RCU read-side critical sections.  This is
        needed if you have CPU-bound realtime threads.
index ef5a2fd..783e072 100644 (file)
@@ -77,7 +77,7 @@ This message indicates that CPU 5 detected that it was causing a stall,
 and that the stall was affecting RCU-sched.  This message will normally be
 followed by a stack dump of the offending CPU.  On TREE_RCU kernel builds,
 RCU and RCU-sched are implemented by the same underlying mechanism,
-while on TREE_PREEMPT_RCU kernel builds, RCU is instead implemented
+while on PREEMPT_RCU kernel builds, RCU is instead implemented
 by rcu_preempt_state.
 
 On the other hand, if the offending CPU fails to print out a stall-warning
@@ -89,7 +89,7 @@ INFO: rcu_bh_state detected stalls on CPUs/tasks: { 3 5 } (detected by 2, 2502 j
 This message indicates that CPU 2 detected that CPUs 3 and 5 were both
 causing stalls, and that the stall was affecting RCU-bh.  This message
 will normally be followed by stack dumps for each CPU.  Please note that
-TREE_PREEMPT_RCU builds can be stalled by tasks as well as by CPUs,
+PREEMPT_RCU builds can be stalled by tasks as well as by CPUs,
 and that the tasks will be indicated by PID, for example, "P3421".
 It is even possible for a rcu_preempt_state stall to be caused by both
 CPUs -and- tasks, in which case the offending CPUs and tasks will all
@@ -205,10 +205,10 @@ o A CPU-bound real-time task in a CONFIG_PREEMPT kernel, which might
 o      A CPU-bound real-time task in a CONFIG_PREEMPT_RT kernel that
        is running at a higher priority than the RCU softirq threads.
        This will prevent RCU callbacks from ever being invoked,
-       and in a CONFIG_TREE_PREEMPT_RCU kernel will further prevent
+       and in a CONFIG_PREEMPT_RCU kernel will further prevent
        RCU grace periods from ever completing.  Either way, the
        system will eventually run out of memory and hang.  In the
-       CONFIG_TREE_PREEMPT_RCU case, you might see stall-warning
+       CONFIG_PREEMPT_RCU case, you might see stall-warning
        messages.
 
 o      A hardware or software issue shuts off the scheduler-clock
index 910870b..b63b9bb 100644 (file)
@@ -8,7 +8,7 @@ The following sections describe the debugfs files and formats, first
 for rcutree and next for rcutiny.
 
 
-CONFIG_TREE_RCU and CONFIG_TREE_PREEMPT_RCU debugfs Files and Formats
+CONFIG_TREE_RCU and CONFIG_PREEMPT_RCU debugfs Files and Formats
 
 These implementations of RCU provide several debugfs directories under the
 top-level directory "rcu":
@@ -18,7 +18,7 @@ rcu/rcu_preempt
 rcu/rcu_sched
 
 Each directory contains files for the corresponding flavor of RCU.
-Note that rcu/rcu_preempt is only present for CONFIG_TREE_PREEMPT_RCU.
+Note that rcu/rcu_preempt is only present for CONFIG_PREEMPT_RCU.
 For CONFIG_TREE_RCU, the RCU flavor maps onto the RCU-sched flavor,
 so that activity for both appears in rcu/rcu_sched.
 
index e48c57f..88dfce1 100644 (file)
@@ -137,7 +137,7 @@ rcu_read_lock()
        Used by a reader to inform the reclaimer that the reader is
        entering an RCU read-side critical section.  It is illegal
        to block while in an RCU read-side critical section, though
-       kernels built with CONFIG_TREE_PREEMPT_RCU can preempt RCU
+       kernels built with CONFIG_PREEMPT_RCU can preempt RCU
        read-side critical sections.  Any RCU-protected data structure
        accessed during an RCU read-side critical section is guaranteed to
        remain unreclaimed for the full duration of that critical section.
index 77fc43f..d996aef 100644 (file)
@@ -102,7 +102,7 @@ extern struct group_info init_groups;
 #define INIT_IDS
 #endif
 
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
 #define INIT_TASK_RCU_TREE_PREEMPT()                                   \
        .rcu_blocked_node = NULL,
 #else
index a4a819f..295bb45 100644 (file)
@@ -57,7 +57,7 @@ enum rcutorture_type {
        INVALID_RCU_FLAVOR
 };
 
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
 void rcutorture_get_gp_data(enum rcutorture_type test_type, int *flags,
                            unsigned long *gpnum, unsigned long *completed);
 void rcutorture_record_test_transition(void);
@@ -365,7 +365,7 @@ typedef void call_rcu_func_t(struct rcu_head *head,
                             void (*func)(struct rcu_head *head));
 void wait_rcu_gp(call_rcu_func_t crf);
 
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
 #include <linux/rcutree.h>
 #elif defined(CONFIG_TINY_RCU)
 #include <linux/rcutiny.h>
@@ -852,7 +852,7 @@ static inline void rcu_preempt_sleep_check(void)
  *
  * In non-preemptible RCU implementations (TREE_RCU and TINY_RCU),
  * it is illegal to block while in an RCU read-side critical section.
- * In preemptible RCU implementations (TREE_PREEMPT_RCU) in CONFIG_PREEMPT
+ * In preemptible RCU implementations (PREEMPT_RCU) in CONFIG_PREEMPT
  * kernel builds, RCU read-side critical sections may be preempted,
  * but explicit blocking is illegal.  Finally, in preemptible RCU
  * implementations in real-time (with -rt patchset) kernel builds, RCU
index 5e344bb..706a9f7 100644 (file)
@@ -1278,9 +1278,9 @@ struct task_struct {
        union rcu_special rcu_read_unlock_special;
        struct list_head rcu_node_entry;
 #endif /* #ifdef CONFIG_PREEMPT_RCU */
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
        struct rcu_node *rcu_blocked_node;
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
 #ifdef CONFIG_TASKS_RCU
        unsigned long rcu_tasks_nvcsw;
        bool rcu_tasks_holdout;
index e335e7d..c78e88c 100644 (file)
@@ -36,7 +36,7 @@ TRACE_EVENT(rcu_utilization,
 
 #ifdef CONFIG_RCU_TRACE
 
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU)
 
 /*
  * Tracepoint for grace-period events.  Takes a string identifying the
@@ -345,7 +345,7 @@ TRACE_EVENT(rcu_fqs,
                  __entry->cpu, __entry->qsevent)
 );
 
-#endif /* #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) */
+#endif /* #if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU) */
 
 /*
  * Tracepoint for dyntick-idle entry/exit events.  These take a string
index 15c299c..5ac596e 100644 (file)
@@ -477,7 +477,7 @@ config TREE_RCU
          thousands of CPUs.  It also scales down nicely to
          smaller systems.
 
-config TREE_PREEMPT_RCU
+config PREEMPT_RCU
        bool "Preemptible tree-based hierarchical RCU"
        depends on PREEMPT
        select IRQ_WORK
@@ -501,12 +501,6 @@ config TINY_RCU
 
 endchoice
 
-config PREEMPT_RCU
-       def_bool TREE_PREEMPT_RCU
-       help
-         This option enables preemptible-RCU code that is common between
-         TREE_PREEMPT_RCU and, in the old days, TINY_PREEMPT_RCU.
-
 config TASKS_RCU
        bool "Task_based RCU implementation using voluntary context switch"
        default n
@@ -518,7 +512,7 @@ config TASKS_RCU
          If unsure, say N.
 
 config RCU_STALL_COMMON
-       def_bool ( TREE_RCU || TREE_PREEMPT_RCU || RCU_TRACE )
+       def_bool ( TREE_RCU || PREEMPT_RCU || RCU_TRACE )
        help
          This option enables RCU CPU stall code that is common between
          the TINY and TREE variants of RCU.  The purpose is to allow
@@ -576,7 +570,7 @@ config RCU_FANOUT
        int "Tree-based hierarchical RCU fanout value"
        range 2 64 if 64BIT
        range 2 32 if !64BIT
-       depends on TREE_RCU || TREE_PREEMPT_RCU
+       depends on TREE_RCU || PREEMPT_RCU
        default 64 if 64BIT
        default 32 if !64BIT
        help
@@ -596,7 +590,7 @@ config RCU_FANOUT_LEAF
        int "Tree-based hierarchical RCU leaf-level fanout value"
        range 2 RCU_FANOUT if 64BIT
        range 2 RCU_FANOUT if !64BIT
-       depends on TREE_RCU || TREE_PREEMPT_RCU
+       depends on TREE_RCU || PREEMPT_RCU
        default 16
        help
          This option controls the leaf-level fanout of hierarchical
@@ -621,7 +615,7 @@ config RCU_FANOUT_LEAF
 
 config RCU_FANOUT_EXACT
        bool "Disable tree-based hierarchical RCU auto-balancing"
-       depends on TREE_RCU || TREE_PREEMPT_RCU
+       depends on TREE_RCU || PREEMPT_RCU
        default n
        help
          This option forces use of the exact RCU_FANOUT value specified,
@@ -652,11 +646,11 @@ config RCU_FAST_NO_HZ
          Say N if you are unsure.
 
 config TREE_RCU_TRACE
-       def_bool RCU_TRACE && ( TREE_RCU || TREE_PREEMPT_RCU )
+       def_bool RCU_TRACE && ( TREE_RCU || PREEMPT_RCU )
        select DEBUG_FS
        help
          This option provides tracing for the TREE_RCU and
-         TREE_PREEMPT_RCU implementations, permitting Makefile to
+         PREEMPT_RCU implementations, permitting Makefile to
          trivially select kernel/rcutree_trace.c.
 
 config RCU_BOOST
@@ -716,7 +710,7 @@ config RCU_BOOST_DELAY
 
 config RCU_NOCB_CPU
        bool "Offload RCU callback processing from boot-selected CPUs"
-       depends on TREE_RCU || TREE_PREEMPT_RCU
+       depends on TREE_RCU || PREEMPT_RCU
        default n
        help
          Use this option to reduce OS jitter for aggressive HPC or
index 807ccfb..e6fae50 100644 (file)
@@ -1,6 +1,6 @@
 obj-y += update.o srcu.o
 obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
 obj-$(CONFIG_TREE_RCU) += tree.o
-obj-$(CONFIG_TREE_PREEMPT_RCU) += tree.o
+obj-$(CONFIG_PREEMPT_RCU) += tree.o
 obj-$(CONFIG_TREE_RCU_TRACE) += tree_trace.o
 obj-$(CONFIG_TINY_RCU) += tiny.o
index bbdc45d..66cde51 100644 (file)
@@ -139,7 +139,7 @@ struct rcu_node {
        unsigned long expmask;  /* Groups that have ->blkd_tasks */
                                /*  elements that need to drain to allow the */
                                /*  current expedited grace period to */
-                               /*  complete (only for TREE_PREEMPT_RCU). */
+                               /*  complete (only for PREEMPT_RCU). */
        unsigned long qsmaskinit;
                                /* Per-GP initial value for qsmask & expmask. */
        unsigned long grpmask;  /* Mask to apply to parent qsmask. */
@@ -530,10 +530,10 @@ DECLARE_PER_CPU(struct rcu_data, rcu_sched_data);
 extern struct rcu_state rcu_bh_state;
 DECLARE_PER_CPU(struct rcu_data, rcu_bh_data);
 
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
 extern struct rcu_state rcu_preempt_state;
 DECLARE_PER_CPU(struct rcu_data, rcu_preempt_data);
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
 
 #ifdef CONFIG_RCU_BOOST
 DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_status);
@@ -563,10 +563,10 @@ static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
 #endif /* #ifdef CONFIG_HOTPLUG_CPU */
 static void rcu_preempt_check_callbacks(int cpu);
 void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
-#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU)
+#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PREEMPT_RCU)
 static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
                               bool wake);
-#endif /* #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU) */
+#endif /* #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PREEMPT_RCU) */
 static void __init __rcu_init_preempt(void);
 static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
 static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
index 344f0e6..6d07fb4 100644 (file)
@@ -100,7 +100,7 @@ static void __init rcu_bootup_announce_oddness(void)
 #endif
 }
 
-#ifdef CONFIG_TREE_PREEMPT_RCU
+#ifdef CONFIG_PREEMPT_RCU
 
 RCU_STATE_INITIALIZER(rcu_preempt, 'p', call_rcu);
 static struct rcu_state *rcu_state_p = &rcu_preempt_state;
@@ -932,7 +932,7 @@ void exit_rcu(void)
        __rcu_read_unlock();
 }
 
-#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+#else /* #ifdef CONFIG_PREEMPT_RCU */
 
 static struct rcu_state *rcu_state_p = &rcu_sched_state;
 
@@ -1083,7 +1083,7 @@ void exit_rcu(void)
 {
 }
 
-#endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */
+#endif /* #else #ifdef CONFIG_PREEMPT_RCU */
 
 #ifdef CONFIG_RCU_BOOST
 
index 3ef8ba5..27a5b17 100644 (file)
@@ -306,7 +306,7 @@ struct debug_obj_descr rcuhead_debug_descr = {
 EXPORT_SYMBOL_GPL(rcuhead_debug_descr);
 #endif /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
 
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_RCU_TRACE)
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_PREEMPT_RCU) || defined(CONFIG_RCU_TRACE)
 void do_trace_rcu_torture_read(const char *rcutorturename, struct rcu_head *rhp,
                               unsigned long secs,
                               unsigned long c_old, unsigned long c)
index 4e35a5d..12e7b02 100644 (file)
@@ -1252,7 +1252,7 @@ config RCU_CPU_STALL_VERBOSE
 
 config RCU_CPU_STALL_INFO
        bool "Print additional diagnostics on RCU CPU stall"
-       depends on (TREE_RCU || TREE_PREEMPT_RCU) && DEBUG_KERNEL
+       depends on (TREE_RCU || PREEMPT_RCU) && DEBUG_KERNEL
        default n
        help
          For each stalled CPU that is aware of the current RCU grace
index 38e3895..69f8e58 100644 (file)
@@ -2,7 +2,7 @@ CONFIG_SMP=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
index ea119ba..fc29c62 100644 (file)
@@ -3,7 +3,7 @@ CONFIG_NR_CPUS=8
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
index 19cf948..778ec56 100644 (file)
@@ -3,7 +3,7 @@ CONFIG_NR_CPUS=8
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
index b95f62e..a022f03 100644 (file)
@@ -3,7 +3,7 @@ CONFIG_NR_CPUS=8
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_HZ_PERIODIC=y
 CONFIG_NO_HZ_IDLE=n
 CONFIG_NO_HZ_FULL=n
index 69a2e25..6f8609d 100644 (file)
@@ -3,7 +3,7 @@ CONFIG_NR_CPUS=16
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
index a0f32fb..4e55bee 100644 (file)
@@ -3,7 +3,7 @@ CONFIG_NR_CPUS=16
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
index b7a62a5..47e2ecd 100644 (file)
@@ -3,7 +3,7 @@ CONFIG_NR_CPUS=1
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
index f72402d..dd7bd4d 100644 (file)
@@ -9,7 +9,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 0f3b667..81d4843 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index b035e14..16e22b7 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 3ccf6a9..ea7ed3b 100644 (file)
@@ -8,7 +8,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_RT_MUTEXES=y
index a55c008..24f4d5e 100644 (file)
@@ -11,7 +11,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_OBJECTS=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
index 9647c44..6880663 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 0f3b667..81d4843 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index b035e14..16e22b7 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 3ccf6a9..ea7ed3b 100644 (file)
@@ -8,7 +8,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_RT_MUTEXES=y
index a55c008..24f4d5e 100644 (file)
@@ -11,7 +11,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_OBJECTS=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
index f4c9175..1be59e4 100644 (file)
@@ -8,7 +8,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-CONFIG_TREE_PREEMPT_RCU=y
+CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 77a8c5b..b49ef74 100644 (file)
@@ -14,7 +14,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_PROVE_LOCKING=y
index 0eecebc..a55a6ac 100644 (file)
@@ -14,7 +14,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_PROVE_LOCKING=y
index 0eecebc..a55a6ac 100644 (file)
@@ -14,7 +14,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_PROVE_LOCKING=y
index 588bc70..3134f46 100644 (file)
@@ -14,7 +14,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_PROVE_LOCKING=y
index 9647c44..6880663 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 0f3b667..81d4843 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index b035e14..16e22b7 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 3ccf6a9..ea7ed3b 100644 (file)
@@ -8,7 +8,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_RT_MUTEXES=y
index a55c008..24f4d5e 100644 (file)
@@ -11,7 +11,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_OBJECTS=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
index 9647c44..6880663 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 0f3b667..81d4843 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index b035e14..16e22b7 100644 (file)
@@ -10,7 +10,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_SYSFS_DEPRECATED_V2=y
index 3ccf6a9..ea7ed3b 100644 (file)
@@ -8,7 +8,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_RCU_TORTURE_TEST=m
 CONFIG_MODULE_UNLOAD=y
 CONFIG_RT_MUTEXES=y
index a55c008..24f4d5e 100644 (file)
@@ -11,7 +11,7 @@ CONFIG_HIBERNATION=n
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_TREE_PREEMPT_RCU=y
+#CHECK#CONFIG_PREEMPT_RCU=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_OBJECTS=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
index 28db67b..9ef33a7 100644 (file)
@@ -34,7 +34,7 @@ CONFIG_PREEMPT
 CONFIG_PREEMPT_RCU
 CONFIG_SMP
 CONFIG_TINY_RCU
-CONFIG_TREE_PREEMPT_RCU
+CONFIG_PREEMPT_RCU
 CONFIG_TREE_RCU
 
        All forced by CONFIG_TINY_RCU.
index ab6e7b4..f613755 100644 (file)
@@ -1,5 +1,5 @@
 This document gives a brief rationale for the TREE_RCU-related test
-cases, a group that includes TREE_PREEMPT_RCU.
+cases, a group that includes PREEMPT_RCU.
 
 
 Kconfig Parameters:
@@ -14,7 +14,7 @@ CONFIG_NO_HZ_FULL_SYSIDLE -- Do one.
 CONFIG_PREEMPT -- Do half.  (First three and #8.)
 CONFIG_PROVE_LOCKING -- Do all but two, covering CONFIG_PROVE_RCU and not.
 CONFIG_PROVE_RCU -- Do all but one under CONFIG_PROVE_LOCKING.
-CONFIG_RCU_BOOST -- one of TREE_PREEMPT_RCU.
+CONFIG_RCU_BOOST -- one of PREEMPT_RCU.
 CONFIG_RCU_KTHREAD_PRIO -- set to 2 for _BOOST testing.
 CONFIG_RCU_CPU_STALL_INFO -- Do one.
 CONFIG_RCU_CPU_STALL_VERBOSE -- do one with and without _INFO.
@@ -27,7 +27,7 @@ CONFIG_RCU_NOCB_CPU_ALL -- Do one.
 CONFIG_RCU_NOCB_CPU_NONE -- Do one.
 CONFIG_RCU_NOCB_CPU_ZERO -- Do one.
 CONFIG_RCU_TRACE -- Do half.
-CONFIG_SMP -- Need one !SMP for TREE_PREEMPT_RCU.
+CONFIG_SMP -- Need one !SMP for PREEMPT_RCU.
 RCU-bh: Do one with PREEMPT and one with !PREEMPT.
 RCU-sched: Do one with PREEMPT but not BOOST.
 
@@ -77,7 +77,7 @@ CONFIG_RCU_CPU_STALL_TIMEOUT
 
 CONFIG_RCU_STALL_COMMON
 
-       Implied by TREE_RCU and TREE_PREEMPT_RCU.
+       Implied by TREE_RCU and PREEMPT_RCU.
 
 CONFIG_RCU_TORTURE_TEST
 CONFIG_RCU_TORTURE_TEST_RUNNABLE
@@ -88,7 +88,7 @@ CONFIG_RCU_USER_QS
 
        Redundant with CONFIG_NO_HZ_FULL.
 
-CONFIG_TREE_PREEMPT_RCU
+CONFIG_PREEMPT_RCU
 CONFIG_TREE_RCU
 
        These are controlled by CONFIG_PREEMPT.