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Merge branches 'doc.2013.12.03a', 'fixes.2013.12.12a', 'rcutorture.2013.12.03a' and 'sparse.2013.12.12a' into HEAD

Browse source 
doc.2013.12.03a: Topic branch for documentation changes.
fixes.2013.12.12a: Topic branch for miscellaneous fixes.
rcutorture.2013.12.03a: Topic branch for new rcutorture/KVM scripting.
sparse.2013.12.12a: Topic branch for sparse-RCU changes.
This commit is contained in:
Paul E. McKenney 2013-12-12 12:35:38 -08:00
commit 0d3c55bc9f
125 changed files with 3736 additions and 174 deletions
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20
Documentation/RCU/trace.txt
View file

@ -396,14 +396,14 @@ o Each element of the form "3/3 ..>. 0:7 ^0" represents one rcu_node
The output of "cat rcu/rcu_sched/rcu_pending" looks as follows:
0!np=26111 qsp=29 rpq=5386 cbr=1 cng=570 gpc=3674 gps=577 nn=15903
1!np=28913 qsp=35 rpq=6097 cbr=1 cng=448 gpc=3700 gps=554 nn=18113
2!np=32740 qsp=37 rpq=6202 cbr=0 cng=476 gpc=4627 gps=546 nn=20889
3 np=23679 qsp=22 rpq=5044 cbr=1 cng=415 gpc=3403 gps=347 nn=14469
4!np=30714 qsp=4 rpq=5574 cbr=0 cng=528 gpc=3931 gps=639 nn=20042
5 np=28910 qsp=2 rpq=5246 cbr=0 cng=428 gpc=4105 gps=709 nn=18422
6!np=38648 qsp=5 rpq=7076 cbr=0 cng=840 gpc=4072 gps=961 nn=25699
7 np=37275 qsp=2 rpq=6873 cbr=0 cng=868 gpc=3416 gps=971 nn=25147
0!np=26111 qsp=29 rpq=5386 cbr=1 cng=570 gpc=3674 gps=577 nn=15903 ndw=0
1!np=28913 qsp=35 rpq=6097 cbr=1 cng=448 gpc=3700 gps=554 nn=18113 ndw=0
2!np=32740 qsp=37 rpq=6202 cbr=0 cng=476 gpc=4627 gps=546 nn=20889 ndw=0
3 np=23679 qsp=22 rpq=5044 cbr=1 cng=415 gpc=3403 gps=347 nn=14469 ndw=0
4!np=30714 qsp=4 rpq=5574 cbr=0 cng=528 gpc=3931 gps=639 nn=20042 ndw=0
5 np=28910 qsp=2 rpq=5246 cbr=0 cng=428 gpc=4105 gps=709 nn=18422 ndw=0
6!np=38648 qsp=5 rpq=7076 cbr=0 cng=840 gpc=4072 gps=961 nn=25699 ndw=0
7 np=37275 qsp=2 rpq=6873 cbr=0 cng=868 gpc=3416 gps=971 nn=25147 ndw=0
The fields are as follows:
@ -432,6 +432,10 @@ o "gpc" is the number of times that an old grace period had
o "gps" is the number of times that a new grace period had started,
but this CPU was not yet aware of it.
o "ndw" is the number of times that a wakeup of an rcuo
callback-offload kthread had to be deferred in order to avoid
deadlock.
o "nn" is the number of times that this CPU needed nothing.

6
MAINTAINERS
View file

@ -7033,6 +7033,12 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
F: Documentation/RCU/torture.txt
F: kernel/rcu/torture.c
RCUTORTURE TEST FRAMEWORK
M: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
F: tools/testing/selftests/rcutorture
RDC R-321X SoC
M: Florian Fainelli <florian@openwrt.org>
S: Maintained

2
drivers/net/bonding/bond_main.c
View file

@ -1763,7 +1763,7 @@ static int __bond_release_one(struct net_device *bond_dev,
}
if (all) {
rcu_assign_pointer(bond->curr_active_slave, NULL);
RCU_INIT_POINTER(bond->curr_active_slave, NULL);
} else if (oldcurrent == slave) {
/*
* Note that we hold RTNL over this sequence, so there

4
include/linux/rculist.h
View file

@ -55,8 +55,8 @@ static inline void __list_add_rcu(struct list_head *new,
next->prev = new;
}
#else
extern void __list_add_rcu(struct list_head *new,
struct list_head *prev, struct list_head *next);
void __list_add_rcu(struct list_head *new,
struct list_head *prev, struct list_head *next);
#endif
/**

153
include/linux/rcupdate.h
View file

@ -50,13 +50,13 @@ extern int rcutorture_runnable; /* for sysctl */
#endif /* #ifdef CONFIG_RCU_TORTURE_TEST */
#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
extern void rcutorture_record_test_transition(void);
extern void rcutorture_record_progress(unsigned long vernum);
extern void do_trace_rcu_torture_read(const char *rcutorturename,
struct rcu_head *rhp,
unsigned long secs,
unsigned long c_old,
unsigned long c);
void rcutorture_record_test_transition(void);
void rcutorture_record_progress(unsigned long vernum);
void do_trace_rcu_torture_read(const char *rcutorturename,
struct rcu_head *rhp,
unsigned long secs,
unsigned long c_old,
unsigned long c);
#else
static inline void rcutorture_record_test_transition(void)
{
@ -65,11 +65,11 @@ static inline void rcutorture_record_progress(unsigned long vernum)
{
}
#ifdef CONFIG_RCU_TRACE
extern void do_trace_rcu_torture_read(const char *rcutorturename,
struct rcu_head *rhp,
unsigned long secs,
unsigned long c_old,
unsigned long c);
void do_trace_rcu_torture_read(const char *rcutorturename,
struct rcu_head *rhp,
unsigned long secs,
unsigned long c_old,
unsigned long c);
#else
#define do_trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \
do { } while (0)
@ -118,8 +118,8 @@ extern void do_trace_rcu_torture_read(const char *rcutorturename,
* if CPU A and CPU B are the same CPU (but again only if the system has
* more than one CPU).
*/
extern void call_rcu(struct rcu_head *head,
void (*func)(struct rcu_head *head));
void call_rcu(struct rcu_head *head,
void (*func)(struct rcu_head *head));
#else /* #ifdef CONFIG_PREEMPT_RCU */
@ -149,8 +149,8 @@ extern void call_rcu(struct rcu_head *head,
* See the description of call_rcu() for more detailed information on
* memory ordering guarantees.
*/
extern void call_rcu_bh(struct rcu_head *head,
void (*func)(struct rcu_head *head));
void call_rcu_bh(struct rcu_head *head,
void (*func)(struct rcu_head *head));
/**
* call_rcu_sched() - Queue an RCU for invocation after sched grace period.
@ -171,16 +171,16 @@ extern void call_rcu_bh(struct rcu_head *head,
* See the description of call_rcu() for more detailed information on
* memory ordering guarantees.
*/
extern void call_rcu_sched(struct rcu_head *head,
void (*func)(struct rcu_head *rcu));
void call_rcu_sched(struct rcu_head *head,
void (*func)(struct rcu_head *rcu));
extern void synchronize_sched(void);
void synchronize_sched(void);
#ifdef CONFIG_PREEMPT_RCU
extern void __rcu_read_lock(void);
extern void __rcu_read_unlock(void);
extern void rcu_read_unlock_special(struct task_struct *t);
void __rcu_read_lock(void);
void __rcu_read_unlock(void);
void rcu_read_unlock_special(struct task_struct *t);
void synchronize_rcu(void);
/*
@ -216,19 +216,19 @@ static inline int rcu_preempt_depth(void)
#endif /* #else #ifdef CONFIG_PREEMPT_RCU */
/* Internal to kernel */
extern void rcu_init(void);
extern void rcu_sched_qs(int cpu);
extern void rcu_bh_qs(int cpu);
extern void rcu_check_callbacks(int cpu, int user);
void rcu_init(void);
void rcu_sched_qs(int cpu);
void rcu_bh_qs(int cpu);
void rcu_check_callbacks(int cpu, int user);
struct notifier_block;
extern void rcu_idle_enter(void);
extern void rcu_idle_exit(void);
extern void rcu_irq_enter(void);
extern void rcu_irq_exit(void);
void rcu_idle_enter(void);
void rcu_idle_exit(void);
void rcu_irq_enter(void);
void rcu_irq_exit(void);
#ifdef CONFIG_RCU_USER_QS
extern void rcu_user_enter(void);
extern void rcu_user_exit(void);
void rcu_user_enter(void);
void rcu_user_exit(void);
#else
static inline void rcu_user_enter(void) { }
static inline void rcu_user_exit(void) { }
@ -262,7 +262,7 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
} while (0)
#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP)
extern bool __rcu_is_watching(void);
bool __rcu_is_watching(void);
#endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP) */
/*
@ -289,8 +289,8 @@ void wait_rcu_gp(call_rcu_func_t crf);
* initialization.
*/
#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
extern void init_rcu_head_on_stack(struct rcu_head *head);
extern void destroy_rcu_head_on_stack(struct rcu_head *head);
void init_rcu_head_on_stack(struct rcu_head *head);
void destroy_rcu_head_on_stack(struct rcu_head *head);
#else /* !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
static inline void init_rcu_head_on_stack(struct rcu_head *head)
{
@ -325,6 +325,7 @@ static inline void rcu_lock_release(struct lockdep_map *map)
extern struct lockdep_map rcu_lock_map;
extern struct lockdep_map rcu_bh_lock_map;
extern struct lockdep_map rcu_sched_lock_map;
extern struct lockdep_map rcu_callback_map;
extern int debug_lockdep_rcu_enabled(void);
/**
@ -362,7 +363,7 @@ static inline int rcu_read_lock_held(void)
* rcu_read_lock_bh_held() is defined out of line to avoid #include-file
* hell.
*/
extern int rcu_read_lock_bh_held(void);
int rcu_read_lock_bh_held(void);
/**
* rcu_read_lock_sched_held() - might we be in RCU-sched read-side critical section?
@ -448,7 +449,7 @@ static inline int rcu_read_lock_sched_held(void)
#ifdef CONFIG_PROVE_RCU
extern int rcu_my_thread_group_empty(void);
int rcu_my_thread_group_empty(void);
/**
* rcu_lockdep_assert - emit lockdep splat if specified condition not met
@ -548,10 +549,48 @@ static inline void rcu_preempt_sleep_check(void)
smp_read_barrier_depends(); \
(_________p1); \
})
#define __rcu_assign_pointer(p, v, space) \
/**
* RCU_INITIALIZER() - statically initialize an RCU-protected global variable
* @v: The value to statically initialize with.
*/
#define RCU_INITIALIZER(v) (typeof(*(v)) __force __rcu *)(v)
/**
* rcu_assign_pointer() - assign to RCU-protected pointer
* @p: pointer to assign to
* @v: value to assign (publish)
*
* Assigns the specified value to the specified RCU-protected
* pointer, ensuring that any concurrent RCU readers will see
* any prior initialization.
*
* Inserts memory barriers on architectures that require them
* (which is most of them), and also prevents the compiler from
* reordering the code that initializes the structure after the pointer
* assignment. More importantly, this call documents which pointers
* will be dereferenced by RCU read-side code.
*
* In some special cases, you may use RCU_INIT_POINTER() instead
* of rcu_assign_pointer(). RCU_INIT_POINTER() is a bit faster due
* to the fact that it does not constrain either the CPU or the compiler.
* That said, using RCU_INIT_POINTER() when you should have used
* rcu_assign_pointer() is a very bad thing that results in
* impossible-to-diagnose memory corruption. So please be careful.
* See the RCU_INIT_POINTER() comment header for details.
*
* Note that rcu_assign_pointer() evaluates each of its arguments only
* once, appearances notwithstanding. One of the "extra" evaluations
* is in typeof() and the other visible only to sparse (__CHECKER__),
* neither of which actually execute the argument. As with most cpp
* macros, this execute-arguments-only-once property is important, so
* please be careful when making changes to rcu_assign_pointer() and the
* other macros that it invokes.
*/
#define rcu_assign_pointer(p, v) \
do { \
smp_wmb(); \
(p) = (typeof(*v) __force space *)(v); \
ACCESS_ONCE(p) = RCU_INITIALIZER(v); \
} while (0)
@ -889,32 +928,6 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
preempt_enable_notrace();
}
/**
* rcu_assign_pointer() - assign to RCU-protected pointer
* @p: pointer to assign to
* @v: value to assign (publish)
*
* Assigns the specified value to the specified RCU-protected
* pointer, ensuring that any concurrent RCU readers will see
* any prior initialization.
*
* Inserts memory barriers on architectures that require them
* (which is most of them), and also prevents the compiler from
* reordering the code that initializes the structure after the pointer
* assignment. More importantly, this call documents which pointers
* will be dereferenced by RCU read-side code.
*
* In some special cases, you may use RCU_INIT_POINTER() instead
* of rcu_assign_pointer(). RCU_INIT_POINTER() is a bit faster due
* to the fact that it does not constrain either the CPU or the compiler.
* That said, using RCU_INIT_POINTER() when you should have used
* rcu_assign_pointer() is a very bad thing that results in
* impossible-to-diagnose memory corruption. So please be careful.
* See the RCU_INIT_POINTER() comment header for details.
*/
#define rcu_assign_pointer(p, v) \
__rcu_assign_pointer((p), (v), __rcu)
/**
* RCU_INIT_POINTER() - initialize an RCU protected pointer
*
@ -949,7 +962,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
*/
#define RCU_INIT_POINTER(p, v) \
do { \
p = (typeof(*v) __force __rcu *)(v); \
p = RCU_INITIALIZER(v); \
} while (0)
/**
@ -958,7 +971,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
* GCC-style initialization for an RCU-protected pointer in a structure field.
*/
#define RCU_POINTER_INITIALIZER(p, v) \
.p = (typeof(*v) __force __rcu *)(v)
.p = RCU_INITIALIZER(v)
/*
* Does the specified offset indicate that the corresponding rcu_head
@ -1005,7 +1018,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
__kfree_rcu(&((ptr)->rcu_head), offsetof(typeof(*(ptr)), rcu_head))
#ifdef CONFIG_RCU_NOCB_CPU
extern bool rcu_is_nocb_cpu(int cpu);
bool rcu_is_nocb_cpu(int cpu);
#else
static inline bool rcu_is_nocb_cpu(int cpu) { return false; }
#endif /* #else #ifdef CONFIG_RCU_NOCB_CPU */
@ -1013,8 +1026,8 @@ static inline bool rcu_is_nocb_cpu(int cpu) { return false; }
/* Only for use by adaptive-ticks code. */
#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
extern bool rcu_sys_is_idle(void);
extern void rcu_sysidle_force_exit(void);
bool rcu_sys_is_idle(void);
void rcu_sysidle_force_exit(void);
#else /* #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
static inline bool rcu_sys_is_idle(void)

2
include/linux/rcutiny.h
View file

@ -125,7 +125,7 @@ static inline void exit_rcu(void)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
extern int rcu_scheduler_active __read_mostly;
extern void rcu_scheduler_starting(void);
void rcu_scheduler_starting(void);
#else /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
static inline void rcu_scheduler_starting(void)
{

36
include/linux/rcutree.h
View file

@ -30,9 +30,9 @@
#ifndef __LINUX_RCUTREE_H
#define __LINUX_RCUTREE_H
extern void rcu_note_context_switch(int cpu);
extern int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies);
extern void rcu_cpu_stall_reset(void);
void rcu_note_context_switch(int cpu);
int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies);
void rcu_cpu_stall_reset(void);
/*
* Note a virtualization-based context switch. This is simply a
@ -44,9 +44,9 @@ static inline void rcu_virt_note_context_switch(int cpu)
rcu_note_context_switch(cpu);
}
extern void synchronize_rcu_bh(void);
extern void synchronize_sched_expedited(void);
extern void synchronize_rcu_expedited(void);
void synchronize_rcu_bh(void);
void synchronize_sched_expedited(void);
void synchronize_rcu_expedited(void);
void kfree_call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
@ -71,25 +71,25 @@ static inline void synchronize_rcu_bh_expedited(void)
synchronize_sched_expedited();
}
extern void rcu_barrier(void);
extern void rcu_barrier_bh(void);
extern void rcu_barrier_sched(void);
void rcu_barrier(void);
void rcu_barrier_bh(void);
void rcu_barrier_sched(void);
extern unsigned long rcutorture_testseq;
extern unsigned long rcutorture_vernum;
extern long rcu_batches_completed(void);
extern long rcu_batches_completed_bh(void);
extern long rcu_batches_completed_sched(void);
long rcu_batches_completed(void);
long rcu_batches_completed_bh(void);
long rcu_batches_completed_sched(void);
extern void rcu_force_quiescent_state(void);
extern void rcu_bh_force_quiescent_state(void);
extern void rcu_sched_force_quiescent_state(void);
void rcu_force_quiescent_state(void);
void rcu_bh_force_quiescent_state(void);
void rcu_sched_force_quiescent_state(void);
extern void exit_rcu(void);
void exit_rcu(void);
extern void rcu_scheduler_starting(void);
void rcu_scheduler_starting(void);
extern int rcu_scheduler_active __read_mostly;
extern bool rcu_is_watching(void);
bool rcu_is_watching(void);
#endif /* __LINUX_RCUTREE_H */

5
kernel/rcu/rcu.h
View file

@ -96,19 +96,22 @@ static inline void debug_rcu_head_unqueue(struct rcu_head *head)
}
#endif /* #else !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
extern void kfree(const void *);
void kfree(const void *);
static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head)
{
unsigned long offset = (unsigned long)head->func;
rcu_lock_acquire(&rcu_callback_map);
if (__is_kfree_rcu_offset(offset)) {
RCU_TRACE(trace_rcu_invoke_kfree_callback(rn, head, offset));
kfree((void *)head - offset);
rcu_lock_release(&rcu_callback_map);
return 1;
} else {
RCU_TRACE(trace_rcu_invoke_callback(rn, head));
head->func(head);
rcu_lock_release(&rcu_callback_map);
return 0;
}
}

57
kernel/rcu/srcu.c
View file

@ -363,6 +363,29 @@ static void srcu_flip(struct srcu_struct *sp)
/*
* Enqueue an SRCU callback on the specified srcu_struct structure,
* initiating grace-period processing if it is not already running.
*
* Note that all CPUs must agree that the grace period extended beyond
* all pre-existing SRCU read-side critical section. On systems with
* more than one CPU, this means that when "func()" is invoked, each CPU
* is guaranteed to have executed a full memory barrier since the end of
* its last corresponding SRCU read-side critical section whose beginning
* preceded the call to call_rcu(). It also means that each CPU executing
* an SRCU read-side critical section that continues beyond the start of
* "func()" must have executed a memory barrier after the call_rcu()
* but before the beginning of that SRCU read-side critical section.
* Note that these guarantees include CPUs that are offline, idle, or
* executing in user mode, as well as CPUs that are executing in the kernel.
*
* Furthermore, if CPU A invoked call_rcu() and CPU B invoked the
* resulting SRCU callback function "func()", then both CPU A and CPU
* B are guaranteed to execute a full memory barrier during the time
* interval between the call to call_rcu() and the invocation of "func()".
* This guarantee applies even if CPU A and CPU B are the same CPU (but
* again only if the system has more than one CPU).
*
* Of course, these guarantees apply only for invocations of call_srcu(),
* srcu_read_lock(), and srcu_read_unlock() that are all passed the same
* srcu_struct structure.
*/
void call_srcu(struct srcu_struct *sp, struct rcu_head *head,
void (*func)(struct rcu_head *head))
@ -459,7 +482,30 @@ static void __synchronize_srcu(struct srcu_struct *sp, int trycount)
* Note that it is illegal to call synchronize_srcu() from the corresponding
* SRCU read-side critical section; doing so will result in deadlock.
* However, it is perfectly legal to call synchronize_srcu() on one
* srcu_struct from some other srcu_struct's read-side critical section.
* srcu_struct from some other srcu_struct's read-side critical section,
* as long as the resulting graph of srcu_structs is acyclic.
*
* There are memory-ordering constraints implied by synchronize_srcu().
* On systems with more than one CPU, when synchronize_srcu() returns,
* each CPU is guaranteed to have executed a full memory barrier since
* the end of its last corresponding SRCU-sched read-side critical section
* whose beginning preceded the call to synchronize_srcu(). In addition,
* each CPU having an SRCU read-side critical section that extends beyond
* the return from synchronize_srcu() is guaranteed to have executed a
* full memory barrier after the beginning of synchronize_srcu() and before
* the beginning of that SRCU read-side critical section. Note that these
* guarantees include CPUs that are offline, idle, or executing in user mode,
* as well as CPUs that are executing in the kernel.
*
* Furthermore, if CPU A invoked synchronize_srcu(), which returned
* to its caller on CPU B, then both CPU A and CPU B are guaranteed
* to have executed a full memory barrier during the execution of
* synchronize_srcu(). This guarantee applies even if CPU A and CPU B
* are the same CPU, but again only if the system has more than one CPU.
*
* Of course, these memory-ordering guarantees apply only when
* synchronize_srcu(), srcu_read_lock(), and srcu_read_unlock() are
* passed the same srcu_struct structure.
*/
void synchronize_srcu(struct srcu_struct *sp)
{
@ -476,12 +522,8 @@ EXPORT_SYMBOL_GPL(synchronize_srcu);
* Wait for an SRCU grace period to elapse, but be more aggressive about
* spinning rather than blocking when waiting.
*
* Note that it is also illegal to call synchronize_srcu_expedited()
* from the corresponding SRCU read-side critical section;
* doing so will result in deadlock. However, it is perfectly legal
* to call synchronize_srcu_expedited() on one srcu_struct from some
* other srcu_struct's read-side critical section, as long as
* the resulting graph of srcu_structs is acyclic.
* Note that synchronize_srcu_expedited() has the same deadlock and
* memory-ordering properties as does synchronize_srcu().
*/
void synchronize_srcu_expedited(struct srcu_struct *sp)
{
@ -491,6 +533,7 @@ EXPORT_SYMBOL_GPL(synchronize_srcu_expedited);
/**
* srcu_barrier - Wait until all in-flight call_srcu() callbacks complete.
* @sp: srcu_struct on which to wait for in-flight callbacks.
*/
void srcu_barrier(struct srcu_struct *sp)
{

75
kernel/rcu/torture.c
View file

@ -139,8 +139,6 @@ MODULE_PARM_DESC(verbose, "Enable verbose debugging printk()s");
#define VERBOSE_PRINTK_ERRSTRING(s) \
do { if (verbose) pr_alert("%s" TORTURE_FLAG "!!! " s "\n", torture_type); } while (0)
static char printk_buf[4096];
static int nrealreaders;
static struct task_struct *writer_task;
static struct task_struct **fakewriter_tasks;
@ -376,7 +374,7 @@ struct rcu_torture_ops {
void (*call)(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
void (*cb_barrier)(void);
void (*fqs)(void);
int (*stats)(char *page);
void (*stats)(char *page);
int irq_capable;
int can_boost;
const char *name;
@ -578,21 +576,19 @@ static void srcu_torture_barrier(void)
srcu_barrier(&srcu_ctl);
}
static int srcu_torture_stats(char *page)
static void srcu_torture_stats(char *page)
{
int cnt = 0;
int cpu;
int idx = srcu_ctl.completed & 0x1;
cnt += sprintf(&page[cnt], "%s%s per-CPU(idx=%d):",
page += sprintf(page, "%s%s per-CPU(idx=%d):",
torture_type, TORTURE_FLAG, idx);
for_each_possible_cpu(cpu) {
cnt += sprintf(&page[cnt], " %d(%lu,%lu)", cpu,
page += sprintf(page, " %d(%lu,%lu)", cpu,
per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[!idx],
per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[idx]);
}
cnt += sprintf(&page[cnt], "\n");
return cnt;
sprintf(page, "\n");
}
static void srcu_torture_synchronize_expedited(void)
@ -1052,10 +1048,9 @@ rcu_torture_reader(void *arg)
/*
* Create an RCU-torture statistics message in the specified buffer.
*/
static int
static void
rcu_torture_printk(char *page)
{
int cnt = 0;
int cpu;
int i;
long pipesummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
@ -1071,8 +1066,8 @@ rcu_torture_printk(char *page)
if (pipesummary[i] != 0)
break;
}
cnt += sprintf(&page[cnt], "%s%s ", torture_type, TORTURE_FLAG);
cnt += sprintf(&page[cnt],
page += sprintf(page, "%s%s ", torture_type, TORTURE_FLAG);
page += sprintf(page,
"rtc: %p ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
rcu_torture_current,
rcu_torture_current_version,
@ -1080,53 +1075,52 @@ rcu_torture_printk(char *page)
atomic_read(&n_rcu_torture_alloc),
atomic_read(&n_rcu_torture_alloc_fail),
atomic_read(&n_rcu_torture_free));
cnt += sprintf(&page[cnt], "rtmbe: %d rtbke: %ld rtbre: %ld ",
page += sprintf(page, "rtmbe: %d rtbke: %ld rtbre: %ld ",
atomic_read(&n_rcu_torture_mberror),
n_rcu_torture_boost_ktrerror,
n_rcu_torture_boost_rterror);
cnt += sprintf(&page[cnt], "rtbf: %ld rtb: %ld nt: %ld ",
page += sprintf(page, "rtbf: %ld rtb: %ld nt: %ld ",
n_rcu_torture_boost_failure,
n_rcu_torture_boosts,
n_rcu_torture_timers);
cnt += sprintf(&page[cnt],
page += sprintf(page,
"onoff: %ld/%ld:%ld/%ld %d,%d:%d,%d %lu:%lu (HZ=%d) ",
n_online_successes, n_online_attempts,
n_offline_successes, n_offline_attempts,
min_online, max_online,
min_offline, max_offline,
sum_online, sum_offline, HZ);
cnt += sprintf(&page[cnt], "barrier: %ld/%ld:%ld",
page += sprintf(page, "barrier: %ld/%ld:%ld",
n_barrier_successes,
n_barrier_attempts,
n_rcu_torture_barrier_error);
cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
page += sprintf(page, "\n%s%s ", torture_type, TORTURE_FLAG);
if (atomic_read(&n_rcu_torture_mberror) != 0 ||
n_rcu_torture_barrier_error != 0 ||
n_rcu_torture_boost_ktrerror != 0 ||
n_rcu_torture_boost_rterror != 0 ||
n_rcu_torture_boost_failure != 0 ||
i > 1) {
cnt += sprintf(&page[cnt], "!!! ");
page += sprintf(page, "!!! ");
atomic_inc(&n_rcu_torture_error);
WARN_ON_ONCE(1);
}
cnt += sprintf(&page[cnt], "Reader Pipe: ");
page += sprintf(page, "Reader Pipe: ");
for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
cnt += sprintf(&page[cnt], " %ld", pipesummary[i]);
cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
cnt += sprintf(&page[cnt], "Reader Batch: ");
page += sprintf(page, " %ld", pipesummary[i]);
page += sprintf(page, "\n%s%s ", torture_type, TORTURE_FLAG);
page += sprintf(page, "Reader Batch: ");
for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
cnt += sprintf(&page[cnt], " %ld", batchsummary[i]);
cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
cnt += sprintf(&page[cnt], "Free-Block Circulation: ");
page += sprintf(page, " %ld", batchsummary[i]);
page += sprintf(page, "\n%s%s ", torture_type, TORTURE_FLAG);
page += sprintf(page, "Free-Block Circulation: ");
for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
cnt += sprintf(&page[cnt], " %d",
page += sprintf(page, " %d",
atomic_read(&rcu_torture_wcount[i]));
}
cnt += sprintf(&page[cnt], "\n");
page += sprintf(page, "\n");
if (cur_ops->stats)
cnt += cur_ops->stats(&page[cnt]);
return cnt;
cur_ops->stats(page);
}
/*
@ -1140,10 +1134,17 @@ rcu_torture_printk(char *page)
static void
rcu_torture_stats_print(void)
{
int cnt;
int size = nr_cpu_ids * 200 + 8192;
char *buf;
cnt = rcu_torture_printk(printk_buf);
pr_alert("%s", printk_buf);
buf = kmalloc(size, GFP_KERNEL);
if (!buf) {
pr_err("rcu-torture: Out of memory, need: %d", size);
return;
}
rcu_torture_printk(buf);
pr_alert("%s", buf);
kfree(buf);
}
/*
@ -1578,6 +1579,7 @@ static int rcu_torture_barrier_cbs(void *arg)
{
long myid = (long)arg;
bool lastphase = 0;
bool newphase;
struct rcu_head rcu;
init_rcu_head_on_stack(&rcu);
@ -1585,10 +1587,11 @@ static int rcu_torture_barrier_cbs(void *arg)
set_user_nice(current, 19);
do {
wait_event(barrier_cbs_wq[myid],
barrier_phase != lastphase ||
(newphase =
ACCESS_ONCE(barrier_phase)) != lastphase ||
kthread_should_stop() ||
fullstop != FULLSTOP_DONTSTOP);
lastphase = barrier_phase;
lastphase = newphase;
smp_mb(); /* ensure barrier_phase load before ->call(). */
if (kthread_should_stop() || fullstop != FULLSTOP_DONTSTOP)
break;
@ -1625,7 +1628,7 @@ static int rcu_torture_barrier(void *arg)
if (kthread_should_stop() || fullstop != FULLSTOP_DONTSTOP)
break;
n_barrier_attempts++;
cur_ops->cb_barrier();
cur_ops->cb_barrier(); /* Implies smp_mb() for wait_event(). */
if (atomic_read(&barrier_cbs_invoked) != n_barrier_cbs) {
n_rcu_torture_barrier_error++;
WARN_ON_ONCE(1);

79
kernel/rcu/tree.c
View file

@ -369,6 +369,9 @@ static struct rcu_node *rcu_get_root(struct rcu_state *rsp)
static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
bool user)
{
struct rcu_state *rsp;
struct rcu_data *rdp;
trace_rcu_dyntick(TPS("Start"), oldval, rdtp->dynticks_nesting);
if (!user && !is_idle_task(current)) {
struct task_struct *idle __maybe_unused =
@ -380,6 +383,10 @@ static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
current->pid, current->comm,
idle->pid, idle->comm); /* must be idle task! */
}
for_each_rcu_flavor(rsp) {
rdp = this_cpu_ptr(rsp->rda);
do_nocb_deferred_wakeup(rdp);
}
rcu_prepare_for_idle(smp_processor_id());
/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
smp_mb__before_atomic_inc(); /* See above. */
@ -411,11 +418,12 @@ static void rcu_eqs_enter(bool user)
rdtp = this_cpu_ptr(&rcu_dynticks);
oldval = rdtp->dynticks_nesting;
WARN_ON_ONCE((oldval & DYNTICK_TASK_NEST_MASK) == 0);
if ((oldval & DYNTICK_TASK_NEST_MASK) == DYNTICK_TASK_NEST_VALUE)
if ((oldval & DYNTICK_TASK_NEST_MASK) == DYNTICK_TASK_NEST_VALUE) {
rdtp->dynticks_nesting = 0;
else
rcu_eqs_enter_common(rdtp, oldval, user);
} else {
rdtp->dynticks_nesting -= DYNTICK_TASK_NEST_VALUE;
rcu_eqs_enter_common(rdtp, oldval, user);
}
}
/**
@ -533,11 +541,12 @@ static void rcu_eqs_exit(bool user)
rdtp = this_cpu_ptr(&rcu_dynticks);
oldval = rdtp->dynticks_nesting;
WARN_ON_ONCE(oldval < 0);
if (oldval & DYNTICK_TASK_NEST_MASK)
if (oldval & DYNTICK_TASK_NEST_MASK) {
rdtp->dynticks_nesting += DYNTICK_TASK_NEST_VALUE;
else
} else {
rdtp->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
rcu_eqs_exit_common(rdtp, oldval, user);
rcu_eqs_exit_common(rdtp, oldval, user);
}
}
/**
@ -716,7 +725,7 @@ bool rcu_lockdep_current_cpu_online(void)
bool ret;
if (in_nmi())
return 1;
return true;
preempt_disable();
rdp = this_cpu_ptr(&rcu_sched_data);
rnp = rdp->mynode;
@ -754,6 +763,12 @@ static int dyntick_save_progress_counter(struct rcu_data *rdp,
return (rdp->dynticks_snap & 0x1) == 0;
}
/*
* This function really isn't for public consumption, but RCU is special in
* that context switches can allow the state machine to make progress.
*/
extern void resched_cpu(int cpu);
/*
* Return true if the specified CPU has passed through a quiescent
* state by virtue of being in or having passed through an dynticks
@ -812,16 +827,34 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
*/
rcu_kick_nohz_cpu(rdp->cpu);
/*
* Alternatively, the CPU might be running in the kernel
* for an extended period of time without a quiescent state.
* Attempt to force the CPU through the scheduler to gain the
* needed quiescent state, but only if the grace period has gone
* on for an uncommonly long time. If there are many stuck CPUs,
* we will beat on the first one until it gets unstuck, then move
* to the next. Only do this for the primary flavor of RCU.
*/
if (rdp->rsp == rcu_state &&
ULONG_CMP_GE(ACCESS_ONCE(jiffies), rdp->rsp->jiffies_resched)) {
rdp->rsp->jiffies_resched += 5;
resched_cpu(rdp->cpu);
}
return 0;
}
static void record_gp_stall_check_time(struct rcu_state *rsp)
{
unsigned long j = ACCESS_ONCE(jiffies);
unsigned long j1;
rsp->gp_start = j;
smp_wmb(); /* Record start time before stall time. */
rsp->jiffies_stall = j + rcu_jiffies_till_stall_check();
j1 = rcu_jiffies_till_stall_check();
rsp->jiffies_stall = j + j1;
rsp->jiffies_resched = j + j1 / 2;
}
/*
@ -1509,6 +1542,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
rdp = this_cpu_ptr(rsp->rda);
if (rnp == rdp->mynode)
__note_gp_changes(rsp, rnp, rdp);
/* smp_mb() provided by prior unlock-lock pair. */
nocb += rcu_future_gp_cleanup(rsp, rnp);
raw_spin_unlock_irq(&rnp->lock);
cond_resched();
@ -1553,6 +1587,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
wait_event_interruptible(rsp->gp_wq,
ACCESS_ONCE(rsp->gp_flags) &
RCU_GP_FLAG_INIT);
/* Locking provides needed memory barrier. */
if (rcu_gp_init(rsp))
break;
cond_resched();
@ -1582,6 +1617,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
(!ACCESS_ONCE(rnp->qsmask) &&
!rcu_preempt_blocked_readers_cgp(rnp)),
j);
/* Locking provides needed memory barriers. */
/* If grace period done, leave loop. */
if (!ACCESS_ONCE(rnp->qsmask) &&
!rcu_preempt_blocked_readers_cgp(rnp))
@ -1901,13 +1937,13 @@ rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
* Adopt the RCU callbacks from the specified rcu_state structure's
* orphanage. The caller must hold the ->orphan_lock.
*/
static void rcu_adopt_orphan_cbs(struct rcu_state *rsp)
static void rcu_adopt_orphan_cbs(struct rcu_state *rsp, unsigned long flags)
{
int i;
struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
/* No-CBs CPUs are handled specially. */
if (rcu_nocb_adopt_orphan_cbs(rsp, rdp))
if (rcu_nocb_adopt_orphan_cbs(rsp, rdp, flags))
return;
/* Do the accounting first. */
@ -1986,7 +2022,7 @@ static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
/* Orphan the dead CPU's callbacks, and adopt them if appropriate. */
rcu_send_cbs_to_orphanage(cpu, rsp, rnp, rdp);
rcu_adopt_orphan_cbs(rsp);
rcu_adopt_orphan_cbs(rsp, flags);
/* Remove the outgoing CPU from the masks in the rcu_node hierarchy. */
mask = rdp->grpmask; /* rnp->grplo is constant. */
@ -2303,6 +2339,9 @@ __rcu_process_callbacks(struct rcu_state *rsp)
/* If there are callbacks ready, invoke them. */
if (cpu_has_callbacks_ready_to_invoke(rdp))
invoke_rcu_callbacks(rsp, rdp);
/* Do any needed deferred wakeups of rcuo kthreads. */
do_nocb_deferred_wakeup(rdp);
}
/*
@ -2437,7 +2476,7 @@ __call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
if (cpu != -1)
rdp = per_cpu_ptr(rsp->rda, cpu);
offline = !__call_rcu_nocb(rdp, head, lazy);
offline = !__call_rcu_nocb(rdp, head, lazy, flags);
WARN_ON_ONCE(offline);
/* _call_rcu() is illegal on offline CPU; leak the callback. */
local_irq_restore(flags);
@ -2757,6 +2796,10 @@ static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp)
/* Check for CPU stalls, if enabled. */
check_cpu_stall(rsp, rdp);
/* Is this CPU a NO_HZ_FULL CPU that should ignore RCU? */
if (rcu_nohz_full_cpu(rsp))
return 0;
/* Is the RCU core waiting for a quiescent state from this CPU? */
if (rcu_scheduler_fully_active &&
rdp->qs_pending && !rdp->passed_quiesce) {
@ -2790,6 +2833,12 @@ static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp)
return 1;
}
/* Does this CPU need a deferred NOCB wakeup? */
if (rcu_nocb_need_deferred_wakeup(rdp)) {
rdp->n_rp_nocb_defer_wakeup++;
return 1;
}
/* nothing to do */
rdp->n_rp_need_nothing++;
return 0;
@ -3214,9 +3263,9 @@ static void __init rcu_init_levelspread(struct rcu_state *rsp)
{
int i;
for (i = rcu_num_lvls - 1; i > 0; i--)
rsp->levelspread[rcu_num_lvls - 1] = rcu_fanout_leaf;
for (i = rcu_num_lvls - 2; i >= 0; i--)
rsp->levelspread[i] = CONFIG_RCU_FANOUT;
rsp->levelspread[0] = rcu_fanout_leaf;
}
#else /* #ifdef CONFIG_RCU_FANOUT_EXACT */
static void __init rcu_init_levelspread(struct rcu_state *rsp)
@ -3346,6 +3395,8 @@ static void __init rcu_init_geometry(void)
if (rcu_fanout_leaf == CONFIG_RCU_FANOUT_LEAF &&
nr_cpu_ids == NR_CPUS)
return;
pr_info("RCU: Adjusting geometry for rcu_fanout_leaf=%d, nr_cpu_ids=%d\n",
rcu_fanout_leaf, nr_cpu_ids);
/*
* Compute number of nodes that can be handled an rcu_node tree

12
kernel/rcu/tree.h
View file

@ -317,6 +317,7 @@ struct rcu_data {
unsigned long n_rp_cpu_needs_gp;
unsigned long n_rp_gp_completed;
unsigned long n_rp_gp_started;
unsigned long n_rp_nocb_defer_wakeup;
unsigned long n_rp_need_nothing;
/* 6) _rcu_barrier() and OOM callbacks. */
@ -335,6 +336,7 @@ struct rcu_data {
int nocb_p_count_lazy; /* (approximate). */
wait_queue_head_t nocb_wq; /* For nocb kthreads to sleep on. */
struct task_struct *nocb_kthread;
bool nocb_defer_wakeup; /* Defer wakeup of nocb_kthread. */
#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
/* 8) RCU CPU stall data. */
@ -453,6 +455,8 @@ struct rcu_state {
/* but in jiffies. */
unsigned long jiffies_stall; /* Time at which to check */
/* for CPU stalls. */
unsigned long jiffies_resched; /* Time at which to resched */
/* a reluctant CPU. */
unsigned long gp_max; /* Maximum GP duration in */
/* jiffies. */
const char *name; /* Name of structure. */
@ -548,9 +552,12 @@ static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq);
static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp);
static void rcu_init_one_nocb(struct rcu_node *rnp);
static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
bool lazy);
bool lazy, unsigned long flags);
static bool rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
struct rcu_data *rdp);
struct rcu_data *rdp,
unsigned long flags);
static bool rcu_nocb_need_deferred_wakeup(struct rcu_data *rdp);
static void do_nocb_deferred_wakeup(struct rcu_data *rdp);
static void rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp);
static void rcu_spawn_nocb_kthreads(struct rcu_state *rsp);
static void rcu_kick_nohz_cpu(int cpu);
@ -564,6 +571,7 @@ static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle,
unsigned long maxj);
static void rcu_bind_gp_kthread(void);
static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp);
static bool rcu_nohz_full_cpu(struct rcu_state *rsp);
#endif /* #ifndef RCU_TREE_NONCORE */

89
kernel/rcu/tree_plugin.h
View file

@ -361,10 +361,14 @@ void rcu_read_unlock_special(struct task_struct *t)
special = t->rcu_read_unlock_special;
if (special & RCU_READ_UNLOCK_NEED_QS) {
rcu_preempt_qs(smp_processor_id());
if (!t->rcu_read_unlock_special) {
local_irq_restore(flags);
return;
}
}
/* Hardware IRQ handlers cannot block. */
if (in_irq() || in_serving_softirq()) {
/* Hardware IRQ handlers cannot block, complain if they get here. */
if (WARN_ON_ONCE(in_irq() || in_serving_softirq())) {
local_irq_restore(flags);
return;
}
@ -779,8 +783,10 @@ static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
}
if (rnp->parent == NULL) {
raw_spin_unlock_irqrestore(&rnp->lock, flags);
if (wake)
if (wake) {
smp_mb(); /* EGP done before wake_up(). */
wake_up(&sync_rcu_preempt_exp_wq);
}
break;
}
mask = rnp->grpmask;
@ -1852,6 +1858,7 @@ static int rcu_oom_notify(struct notifier_block *self,
/* Wait for callbacks from earlier instance to complete. */
wait_event(oom_callback_wq, atomic_read(&oom_callback_count) == 0);
smp_mb(); /* Ensure callback reuse happens after callback invocation. */
/*
* Prevent premature wakeup: ensure that all increments happen
@ -2101,7 +2108,8 @@ bool rcu_is_nocb_cpu(int cpu)
static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
struct rcu_head *rhp,
struct rcu_head **rhtp,
int rhcount, int rhcount_lazy)
int rhcount, int rhcount_lazy,
unsigned long flags)
{
int len;
struct rcu_head **old_rhpp;
@ -2122,9 +2130,16 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
}
len = atomic_long_read(&rdp->nocb_q_count);
if (old_rhpp == &rdp->nocb_head) {
wake_up(&rdp->nocb_wq); /* ... only if queue was empty ... */
if (!irqs_disabled_flags(flags)) {
wake_up(&rdp->nocb_wq); /* ... if queue was empty ... */
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
TPS("WakeEmpty"));
} else {
rdp->nocb_defer_wakeup = true;
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
TPS("WakeEmptyIsDeferred"));
}
rdp->qlen_last_fqs_check = 0;
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeEmpty"));
} else if (len > rdp->qlen_last_fqs_check + qhimark) {
wake_up_process(t); /* ... or if many callbacks queued. */
rdp->qlen_last_fqs_check = LONG_MAX / 2;
@ -2145,12 +2160,12 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
* "rcuo" kthread can find it.
*/
static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
bool lazy)
bool lazy, unsigned long flags)
{
if (!rcu_is_nocb_cpu(rdp->cpu))
return 0;
__call_rcu_nocb_enqueue(rdp, rhp, &rhp->next, 1, lazy);
__call_rcu_nocb_enqueue(rdp, rhp, &rhp->next, 1, lazy, flags);
if (__is_kfree_rcu_offset((unsigned long)rhp->func))
trace_rcu_kfree_callback(rdp->rsp->name, rhp,
(unsigned long)rhp->func,
@ -2168,7 +2183,8 @@ static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
* not a no-CBs CPU.
*/
static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
struct rcu_data *rdp)
struct rcu_data *rdp,
unsigned long flags)
{
long ql = rsp->qlen;
long qll = rsp->qlen_lazy;
@ -2182,14 +2198,14 @@ static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
/* First, enqueue the donelist, if any. This preserves CB ordering. */
if (rsp->orphan_donelist != NULL) {
__call_rcu_nocb_enqueue(rdp, rsp->orphan_donelist,
rsp->orphan_donetail, ql, qll);
rsp->orphan_donetail, ql, qll, flags);
ql = qll = 0;
rsp->orphan_donelist = NULL;
rsp->orphan_donetail = &rsp->orphan_donelist;
}
if (rsp->orphan_nxtlist != NULL) {
__call_rcu_nocb_enqueue(rdp, rsp->orphan_nxtlist,
rsp->orphan_nxttail, ql, qll);
rsp->orphan_nxttail, ql, qll, flags);
ql = qll = 0;
rsp->orphan_nxtlist = NULL;
rsp->orphan_nxttail = &rsp->orphan_nxtlist;
@ -2250,6 +2266,7 @@ static int rcu_nocb_kthread(void *arg)
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
TPS("Sleep"));
wait_event_interruptible(rdp->nocb_wq, rdp->nocb_head);
/* Memory barrier provide by xchg() below. */
} else if (firsttime) {
firsttime = 0;
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
@ -2310,6 +2327,22 @@ static int rcu_nocb_kthread(void *arg)
return 0;
}
/* Is a deferred wakeup of rcu_nocb_kthread() required? */
static bool rcu_nocb_need_deferred_wakeup(struct rcu_data *rdp)
{
return ACCESS_ONCE(rdp->nocb_defer_wakeup);
}
/* Do a deferred wakeup of rcu_nocb_kthread(). */
static void do_nocb_deferred_wakeup(struct rcu_data *rdp)
{
if (!rcu_nocb_need_deferred_wakeup(rdp))
return;
ACCESS_ONCE(rdp->nocb_defer_wakeup) = false;
wake_up(&rdp->nocb_wq);
trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("DeferredWakeEmpty"));
}
/* Initialize per-rcu_data variables for no-CBs CPUs. */
static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
{
@ -2365,13 +2398,14 @@ static void rcu_init_one_nocb(struct rcu_node *rnp)
}
static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
bool lazy)
bool lazy, unsigned long flags)
{
return 0;
}
static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
struct rcu_data *rdp)
struct rcu_data *rdp,
unsigned long flags)
{
return 0;
}
@ -2380,6 +2414,15 @@ static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
{
}
static bool rcu_nocb_need_deferred_wakeup(struct rcu_data *rdp)
{
return false;
}
static void do_nocb_deferred_wakeup(struct rcu_data *rdp)
{
}
static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
{
}
@ -2829,3 +2872,23 @@ static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp)
}
#endif /* #else #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
/*
* Is this CPU a NO_HZ_FULL CPU that should ignore RCU so that the
* grace-period kthread will do force_quiescent_state() processing?
* The idea is to avoid waking up RCU core processing on such a
* CPU unless the grace period has extended for too long.
*
* This code relies on the fact that all NO_HZ_FULL CPUs are also
* CONFIG_RCU_NOCB_CPUs.
*/
static bool rcu_nohz_full_cpu(struct rcu_state *rsp)
{
#ifdef CONFIG_NO_HZ_FULL
if (tick_nohz_full_cpu(smp_processor_id()) &&
(!rcu_gp_in_progress(rsp) ||
ULONG_CMP_LT(jiffies, ACCESS_ONCE(rsp->gp_start) + HZ)))
return 1;
#endif /* #ifdef CONFIG_NO_HZ_FULL */
return 0;
}

3
kernel/rcu/tree_trace.c
View file

@ -364,9 +364,10 @@ static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp)
rdp->n_rp_report_qs,
rdp->n_rp_cb_ready,
rdp->n_rp_cpu_needs_gp);
seq_printf(m, "gpc=%ld gps=%ld nn=%ld\n",
seq_printf(m, "gpc=%ld gps=%ld nn=%ld ndw%ld\n",
rdp->n_rp_gp_completed,
rdp->n_rp_gp_started,
rdp->n_rp_nocb_defer_wakeup,
rdp->n_rp_need_nothing);
}

5
kernel/rcu/update.c
View file

@ -128,6 +128,11 @@ struct lockdep_map rcu_sched_lock_map =
STATIC_LOCKDEP_MAP_INIT("rcu_read_lock_sched", &rcu_sched_lock_key);
EXPORT_SYMBOL_GPL(rcu_sched_lock_map);
static struct lock_class_key rcu_callback_key;
struct lockdep_map rcu_callback_map =
STATIC_LOCKDEP_MAP_INIT("rcu_callback", &rcu_callback_key);
EXPORT_SYMBOL_GPL(rcu_callback_map);
int notrace debug_lockdep_rcu_enabled(void)
{
return rcu_scheduler_active && debug_locks &&

6
tools/testing/selftests/rcutorture/.gitignore vendored Normal file
View file

@ -0,0 +1,6 @@
initrd
linux-2.6
b[0-9]*
rcu-test-image
res
*.swp

25
tools/testing/selftests/rcutorture/bin/config2frag.sh Normal file
View file

@ -0,0 +1,25 @@
#!/bin/sh
# Usage: sh config2frag.sh < .config > configfrag
#
# Converts the "# CONFIG_XXX is not set" to "CONFIG_XXX=n" so that the
# resulting file becomes a legitimate Kconfig fragment.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
LANG=C sed -e 's/^# CONFIG_\([a-zA-Z0-9_]*\) is not set$/CONFIG_\1=n/'

45
tools/testing/selftests/rcutorture/bin/configNR_CPUS.sh Executable file
View file

@ -0,0 +1,45 @@
#!/bin/bash
#
# Extract the number of CPUs expected from the specified Kconfig-file
# fragment by checking CONFIG_SMP and CONFIG_NR_CPUS. If the specified
# file gives no clue, base the number on the number of idle CPUs on
# the system.
#
# Usage: configNR_CPUS.sh config-frag
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
cf=$1
if test ! -r $cf
then
echo Unreadable config fragment $cf 1>&2
exit -1
fi
if grep -q '^CONFIG_SMP=n$' $cf
then
echo 1
exit 0
fi
if grep -q '^CONFIG_NR_CPUS=' $cf
then
grep '^CONFIG_NR_CPUS=' $cf |
sed -e 's/^CONFIG_NR_CPUS=\([0-9]*\).*$/\1/'
exit 0
fi
cpus2use.sh

54
tools/testing/selftests/rcutorture/bin/configcheck.sh Executable file
View file

@ -0,0 +1,54 @@
#!/bin/sh
# Usage: sh configcheck.sh .config .config-template
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
T=/tmp/abat-chk-config.sh.$$
trap 'rm -rf $T' 0
mkdir $T
cat $1 > $T/.config
cat $2 | sed -e 's/\(.*\)=n/# \1 is not set/' -e 's/^#CHECK#//' |
awk '
BEGIN {
print "if grep -q \"" $0 "\" < '"$T/.config"'";
print "then";
print "\t:";
print "else";
if ($1 == "#") {
print "\tif grep -q \"" $2 "\" < '"$T/.config"'";
print "\tthen";
print "\t\tif test \"$firsttime\" = \"\""
print "\t\tthen"
print "\t\t\tfirsttime=1"
print "\t\tfi"
print "\t\techo \":" $2 ": improperly set\"";
print "\telse";
print "\t\t:";
print "\tfi";
} else {
print "\tif test \"$firsttime\" = \"\""
print "\tthen"
print "\t\tfirsttime=1"
print "\tfi"
print "\techo \":" $0 ": improperly set\"";
}
print "fi";
}' | sh

74
tools/testing/selftests/rcutorture/bin/configinit.sh Executable file
View file

@ -0,0 +1,74 @@
#!/bin/sh
#
# sh configinit.sh config-spec-file [ build output dir ]
#
# Create a .config file from the spec file. Run from the kernel source tree.
# Exits with 0 if all went well, with 1 if all went well but the config
# did not match, and some other number for other failures.
#
# The first argument is the .config specification file, which contains
# desired settings, for example, "CONFIG_NO_HZ=y". For best results,
# this should be a full pathname.
#
# The second argument is a optional path to a build output directory,
# for example, "O=/tmp/foo". If this argument is omitted, the .config
# file will be generated directly in the current directory.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
T=/tmp/configinit.sh.$$
trap 'rm -rf $T' 0
mkdir $T
# Capture config spec file.
c=$1
buildloc=$2
builddir=
if test -n $buildloc
then
if echo $buildloc | grep -q '^O='
then
builddir=`echo $buildloc | sed -e 's/^O=//'`
if test ! -d $builddir
then
mkdir $builddir
fi
else
echo Bad build directory: \"$builddir\"
exit 2
fi
fi
sed -e 's/^\(CONFIG[0-9A-Z_]*\)=.*$/grep -v "^# \1" |/' < $c > $T/u.sh
sed -e 's/^\(CONFIG[0-9A-Z_]*=\).*$/grep -v \1 |/' < $c >> $T/u.sh
grep '^grep' < $T/u.sh > $T/upd.sh
echo "cat - $c" >> $T/upd.sh
make mrproper
make $buildloc distclean > $builddir/Make.distclean 2>&1
make $buildloc defconfig > $builddir/Make.defconfig.out 2>&1
mv $builddir/.config $builddir/.config.sav
sh $T/upd.sh < $builddir/.config.sav > $builddir/.config
cp $builddir/.config $builddir/.config.new
yes '' | make $buildloc oldconfig > $builddir/Make.modconfig.out 2>&1
# verify new config matches specification.
configcheck.sh $builddir/.config $c
exit 0

41
tools/testing/selftests/rcutorture/bin/cpus2use.sh Executable file
View file

@ -0,0 +1,41 @@
#!/bin/bash
#
# Get an estimate of how CPU-hoggy to be.
#
# Usage: cpus2use.sh
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
ncpus=`grep '^processor' /proc/cpuinfo | wc -l`
idlecpus=`mpstat | tail -1 | \
awk -v ncpus=$ncpus '{ print ncpus * ($7 + $12) / 100 }'`
awk -v ncpus=$ncpus -v idlecpus=$idlecpus < /dev/null '
BEGIN {
cpus2use = idlecpus;
if (cpus2use < 1)
cpus2use = 1;
if (cpus2use < ncpus / 10)
cpus2use = ncpus / 10;
if (cpus2use == int(cpus2use))
cpus2use = int(cpus2use)
else
cpus2use = int(cpus2use) + 1
print cpus2use;
}'

198
tools/testing/selftests/rcutorture/bin/functions.sh Normal file
View file

@ -0,0 +1,198 @@
#!/bin/bash
#
# Shell functions for the rest of the scripts.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
# bootparam_hotplug_cpu bootparam-string
#
# Returns 1 if the specified boot-parameter string tells rcutorture to
# test CPU-hotplug operations.
bootparam_hotplug_cpu () {
echo "$1" | grep -q "rcutorture\.onoff_"
}
# checkarg --argname argtype $# arg mustmatch cannotmatch
#
# Checks the specified argument "arg" against the mustmatch and cannotmatch
# patterns.
checkarg () {
if test $3 -le 1
then
echo $1 needs argument $2 matching \"$5\"
usage
fi
if echo "$4" | grep -q -e "$5"
then
:
else
echo $1 $2 \"$4\" must match \"$5\"
usage
fi
if echo "$4" | grep -q -e "$6"
then
echo $1 $2 \"$4\" must not match \"$6\"
usage
fi
}
# configfrag_boot_params bootparam-string config-fragment-file
#
# Adds boot parameters from the .boot file, if any.
configfrag_boot_params () {
if test -r "$2.boot"
then
echo $1 `grep -v '^#' "$2.boot" | tr '\012' ' '`
else
echo $1
fi
}
# configfrag_hotplug_cpu config-fragment-file
#
# Returns 1 if the config fragment specifies hotplug CPU.
configfrag_hotplug_cpu () {
if test ! -r "$1"
then
echo Unreadable config fragment "$1" 1>&2
exit -1
fi
grep -q '^CONFIG_HOTPLUG_CPU=y$' "$1"
}
# identify_qemu builddir
#
# Returns our best guess as to which qemu command is appropriate for
# the kernel at hand. Override with the RCU_QEMU_CMD environment variable.
identify_qemu () {
local u="`file "$1"`"
if test -n "$RCU_QEMU_CMD"
then
echo $RCU_QEMU_CMD
elif echo $u | grep -q x86-64
then
echo qemu-system-x86_64
elif echo $u | grep -q "Intel 80386"
then
echo qemu-system-i386
elif uname -a | grep -q ppc64
then
echo qemu-system-ppc64
else
echo Cannot figure out what qemu command to use! 1>&2
# Usually this will be one of /usr/bin/qemu-system-*
# Use RCU_QEMU_CMD environment variable or appropriate
# argument to top-level script.
exit 1
fi
}
# identify_qemu_append qemu-cmd
#
# Output arguments for the qemu "-append" string based on CPU type
# and the RCU_QEMU_INTERACTIVE environment variable.
identify_qemu_append () {
case "$1" in
qemu-system-x86_64|qemu-system-i386)
echo noapic selinux=0 initcall_debug debug
;;
esac
if test -n "$RCU_QEMU_INTERACTIVE"
then
echo root=/dev/sda
else
echo console=ttyS0
fi
}
# identify_qemu_args qemu-cmd serial-file
#
# Output arguments for qemu arguments based on the RCU_QEMU_MAC
# and RCU_QEMU_INTERACTIVE environment variables.
identify_qemu_args () {
case "$1" in
qemu-system-x86_64|qemu-system-i386)
;;
qemu-system-ppc64)
echo -enable-kvm -M pseries -cpu POWER7 -nodefaults
echo -device spapr-vscsi
if test -n "$RCU_QEMU_INTERACTIVE" -a -n "$RCU_QEMU_MAC"
then
echo -device spapr-vlan,netdev=net0,mac=$RCU_QEMU_MAC
echo -netdev bridge,br=br0,id=net0
elif test -n "$RCU_QEMU_INTERACTIVE"
then
echo -net nic -net user
fi
;;
esac
if test -n "$RCU_QEMU_INTERACTIVE"
then
echo -monitor stdio -serial pty -S
else
echo -serial file:$2
fi
}
# identify_qemu_vcpus
#
# Returns the number of virtual CPUs available to the aggregate of the
# guest OSes.
identify_qemu_vcpus () {
lscpu | grep '^CPU(s):' | sed -e 's/CPU(s)://'
}
# print_bug
#
# Prints "BUG: " in red followed by remaining arguments
print_bug () {
printf '\033[031mBUG: \033[m'
echo $*
}
# print_warning
#
# Prints "WARNING: " in yellow followed by remaining arguments
print_warning () {
printf '\033[033mWARNING: \033[m'
echo $*
}
# specify_qemu_cpus qemu-cmd qemu-args #cpus
#
# Appends a string containing "-smp XXX" to qemu-args, unless the incoming
# qemu-args already contains "-smp".
specify_qemu_cpus () {
local nt;
if echo $2 | grep -q -e -smp
then
echo $2
else
case "$1" in
qemu-system-x86_64|qemu-system-i386)
echo $2 -smp $3
;;
qemu-system-ppc64)
nt="`lscpu | grep '^NUMA node0' | sed -e 's/^[^,]*,\([0-9]*\),.*$/\1/'`"
echo $2 -smp cores=`expr \( $3 + $nt - 1 \) / $nt`,threads=$nt
;;
esac
fi
}

71
tools/testing/selftests/rcutorture/bin/kvm-build.sh Executable file
View file

@ -0,0 +1,71 @@
#!/bin/bash
#
# Build a kvm-ready Linux kernel from the tree in the current directory.
#
# Usage: sh kvm-build.sh config-template build-dir more-configs
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
config_template=${1}
if test -z "$config_template" -o ! -f "$config_template" -o ! -r "$config_template"
then
echo "kvm-build.sh :$config_template: Not a readable file"
exit 1
fi
builddir=${2}
if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
then
echo "kvm-build.sh :$builddir: Not a writable directory, cannot build into it"
exit 1
fi
moreconfigs=${3}
if test -z "$moreconfigs" -o ! -r "$moreconfigs"
then
echo "kvm-build.sh :$moreconfigs: Not a readable file"
exit 1
fi
T=/tmp/test-linux.sh.$$
trap 'rm -rf $T' 0
mkdir $T
cat ${config_template} | grep -v CONFIG_RCU_TORTURE_TEST > $T/config
cat << ___EOF___ >> $T/config
CONFIG_INITRAMFS_SOURCE="$RCU_INITRD"
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_CONSOLE=y
___EOF___
cat $moreconfigs >> $T/config
configinit.sh $T/config O=$builddir
retval=$?
if test $retval -gt 1
then
exit 2
fi
ncpus=`cpus2use.sh`
make O=$builddir -j$ncpus $RCU_KMAKE_ARG > $builddir/Make.out 2>&1
retval=$?
if test $retval -ne 0 || grep "rcu[^/]*": < $builddir/Make.out | egrep -q "Stop|Error|error:|warning:" || egrep -q "Stop|Error|error:" < $builddir/Make.out
then
echo Kernel build error
egrep "Stop|Error|error:|warning:" < $builddir/Make.out
echo Run aborted.
exit 3
fi

44
tools/testing/selftests/rcutorture/bin/kvm-recheck.sh Executable file
View file

@ -0,0 +1,44 @@
#!/bin/bash
#
# Given the results directories for previous KVM runs of rcutorture,
# check the build and console output for errors. Given a directory
# containing results directories, this recursively checks them all.
#
# Usage: sh kvm-recheck.sh resdir ...
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
for rd in "$@"
do
dirs=`find $rd -name Make.defconfig.out -print | sort | sed -e 's,/[^/]*$,,' | sort -u`
for i in $dirs
do
configfile=`echo $i | sed -e 's/^.*\///'`
echo $configfile
configcheck.sh $i/.config $i/ConfigFragment
parse-build.sh $i/Make.out $configfile
parse-rcutorture.sh $i/console.log $configfile
parse-console.sh $i/console.log $configfile
if test -r $i/Warnings
then
cat $i/Warnings
fi
done
done

192
tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.sh Executable file
View file

@ -0,0 +1,192 @@
#!/bin/bash
#
# Run a kvm-based test of the specified tree on the specified configs.
# Fully automated run and error checking, no graphics console.
#
# Execute this in the source tree. Do not run it as a background task
# because qemu does not seem to like that much.
#
# Usage: sh kvm-test-1-rcu.sh config builddir resdir minutes qemu-args bootargs
#
# qemu-args defaults to "" -- you will want "-nographic" if running headless.
# bootargs defaults to "root=/dev/sda noapic selinux=0 console=ttyS0"
# "initcall_debug debug rcutorture.stat_interval=15"
# "rcutorture.shutdown_secs=$((minutes * 60))"
# "rcutorture.rcutorture_runnable=1"
#
# Anything you specify for either qemu-args or bootargs is appended to
# the default values. The "-smp" value is deduced from the contents of
# the config fragment.
#
# More sophisticated argument parsing is clearly needed.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
grace=120
T=/tmp/kvm-test-1-rcu.sh.$$
trap 'rm -rf $T' 0
. $KVM/bin/functions.sh
. $KVPATH/ver_functions.sh
config_template=${1}
title=`echo $config_template | sed -e 's/^.*\///'`
builddir=${2}
if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
then
echo "kvm-test-1-rcu.sh :$builddir: Not a writable directory, cannot build into it"
exit 1
fi
resdir=${3}
if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
then
echo "kvm-test-1-rcu.sh :$resdir: Not a writable directory, cannot build into it"
exit 1
fi
cp $config_template $resdir/ConfigFragment
echo ' ---' `date`: Starting build
echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
cat << '___EOF___' >> $T
CONFIG_RCU_TORTURE_TEST=y
___EOF___
# Optimizations below this point
# CONFIG_USB=n
# CONFIG_SECURITY=n
# CONFIG_NFS_FS=n
# CONFIG_SOUND=n
# CONFIG_INPUT_JOYSTICK=n
# CONFIG_INPUT_TABLET=n
# CONFIG_INPUT_TOUCHSCREEN=n
# CONFIG_INPUT_MISC=n
# CONFIG_INPUT_MOUSE=n
# # CONFIG_NET=n # disables console access, so accept the slower build.
# CONFIG_SCSI=n
# CONFIG_ATA=n
# CONFIG_FAT_FS=n
# CONFIG_MSDOS_FS=n
# CONFIG_VFAT_FS=n
# CONFIG_ISO9660_FS=n
# CONFIG_QUOTA=n
# CONFIG_HID=n
# CONFIG_CRYPTO=n
# CONFIG_PCCARD=n
# CONFIG_PCMCIA=n
# CONFIG_CARDBUS=n
# CONFIG_YENTA=n
if kvm-build.sh $config_template $builddir $T
then
cp $builddir/Make*.out $resdir
cp $builddir/.config $resdir
cp $builddir/arch/x86/boot/bzImage $resdir
parse-build.sh $resdir/Make.out $title
else
cp $builddir/Make*.out $resdir
echo Build failed, not running KVM, see $resdir.
exit 1
fi
minutes=$4
seconds=$(($minutes * 60))
qemu_args=$5
boot_args=$6
cd $KVM
kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
echo ' ---' `date`: Starting kernel
# Determine the appropriate flavor of qemu command.
QEMU="`identify_qemu $builddir/vmlinux.o`"
# Generate -smp qemu argument.
cpu_count=`configNR_CPUS.sh $config_template`
vcpus=`identify_qemu_vcpus`
if test $cpu_count -gt $vcpus
then
echo CPU count limited from $cpu_count to $vcpus
touch $resdir/Warnings
echo CPU count limited from $cpu_count to $vcpus >> $resdir/Warnings
cpu_count=$vcpus
fi
qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
# Generate architecture-specific and interaction-specific qemu arguments
qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$builddir/console.log"`"
# Generate qemu -append arguments
qemu_append="`identify_qemu_append "$QEMU"`"
# Pull in Kconfig-fragment boot parameters
boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
# Generate CPU-hotplug boot parameters
boot_args="`rcutorture_param_onoff "$boot_args" $builddir/.config`"
# Generate rcu_barrier() boot parameter
boot_args="`rcutorture_param_n_barrier_cbs "$boot_args"`"
# Pull in standard rcutorture boot arguments
boot_args="$boot_args rcutorture.stat_interval=15 rcutorture.shutdown_secs=$seconds rcutorture.rcutorture_runnable=1"
echo $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
if test -n "$RCU_BUILDONLY"
then
echo Build-only run specified, boot/test omitted.
exit 0
fi
$QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append "$qemu_append $boot_args" &
qemu_pid=$!
commandcompleted=0
echo Monitoring qemu job at pid $qemu_pid
for ((i=0;i<$seconds;i++))
do
if kill -0 $qemu_pid > /dev/null 2>&1
then
sleep 1
else
commandcompleted=1
kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
if test $kruntime -lt $seconds
then
echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
else
echo ' ---' `date`: Kernel done
fi
break
fi
done
if test $commandcompleted -eq 0
then
echo Grace period for qemu job at pid $qemu_pid
for ((i=0;i<=$grace;i++))
do
if kill -0 $qemu_pid > /dev/null 2>&1
then
sleep 1
else
break
fi
if test $i -eq $grace
then
kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }'`
echo "!!! Hang at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
kill -KILL $qemu_pid
fi
done
fi
cp $builddir/console.log $resdir
parse-rcutorture.sh $resdir/console.log $title
parse-console.sh $resdir/console.log $title

210
tools/testing/selftests/rcutorture/bin/kvm.sh Normal file
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@ -0,0 +1,210 @@
#!/bin/bash
#
# Run a series of 14 tests under KVM. These are not particularly
# well-selected or well-tuned, but are the current set. Run from the
# top level of the source tree.
#
# Edit the definitions below to set the locations of the various directories,
# as well as the test duration.
#
# Usage: sh kvm.sh [ options ]
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
scriptname=$0
args="$*"
dur=30
KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
PATH=${KVM}/bin:$PATH; export PATH
builddir="${KVM}/b1"
RCU_INITRD="$KVM/initrd"; export RCU_INITRD
RCU_KMAKE_ARG=""; export RCU_KMAKE_ARG
resdir=""
configs=""
ds=`date +%Y.%m.%d-%H:%M:%S`
kversion=""
. functions.sh
usage () {
echo "Usage: $scriptname optional arguments:"
echo " --bootargs kernel-boot-arguments"
echo " --builddir absolute-pathname"
echo " --buildonly"
echo " --configs \"config-file list\""
echo " --datestamp string"
echo " --duration minutes"
echo " --interactive"
echo " --kmake-arg kernel-make-arguments"
echo " --kversion vN.NN"
echo " --mac nn:nn:nn:nn:nn:nn"
echo " --no-initrd"
echo " --qemu-args qemu-system-..."
echo " --qemu-cmd qemu-system-..."
echo " --results absolute-pathname"
echo " --relbuilddir relative-pathname"
exit 1
}
while test $# -gt 0
do
case "$1" in
--bootargs)
checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
RCU_BOOTARGS="$2"
shift
;;
--builddir)
checkarg --builddir "(absolute pathname)" "$#" "$2" '^/' '^error'
builddir=$2
gotbuilddir=1
shift
;;
--buildonly)
RCU_BUILDONLY=1; export RCU_BUILDONLY
;;
--configs)
checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
configs="$2"
shift
;;
--datestamp)
checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
ds=$2
shift
;;
--duration)
checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
dur=$2
shift
;;
--interactive)
RCU_QEMU_INTERACTIVE=1; export RCU_QEMU_INTERACTIVE
;;
--kmake-arg)
checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
RCU_KMAKE_ARG="$2"; export RCU_KMAKE_ARG
shift
;;
--kversion)
checkarg --kversion "(kernel version)" $# "$2" '^v[0-9.]*$' '^error'
kversion=$2
shift
;;
--mac)
checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
RCU_QEMU_MAC=$2; export RCU_QEMU_MAC
shift
;;
--no-initrd)
RCU_INITRD=""; export RCU_INITRD
;;
--qemu-args)
checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error'
RCU_QEMU_ARG="$2"
shift
;;
--qemu-cmd)
checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
RCU_QEMU_CMD="$2"; export RCU_QEMU_CMD
shift
;;
--relbuilddir)
checkarg --relbuilddir "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
relbuilddir=$2
gotrelbuilddir=1
builddir=${KVM}/${relbuilddir}
shift
;;
--results)
checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
resdir=$2
shift
;;
*)
echo Unknown argument $1
usage
;;
esac
shift
done
CONFIGFRAG=${KVM}/configs; export CONFIGFRAG
KVPATH=${CONFIGFRAG}/$kversion; export KVPATH
if test -z "$configs"
then
configs="`cat $CONFIGFRAG/$kversion/CFLIST`"
fi
if test -z "$resdir"
then
resdir=$KVM/res
if ! test -e $resdir
then
mkdir $resdir || :
fi
else
if ! test -e $resdir
then
mkdir -p "$resdir" || :
fi
fi
mkdir $resdir/$ds
touch $resdir/$ds/log
echo $scriptname $args >> $resdir/$ds/log
pwd > $resdir/$ds/testid.txt
if test -d .git
then
git status >> $resdir/$ds/testid.txt
git rev-parse HEAD >> $resdir/$ds/testid.txt
fi
builddir=$KVM/b1
if ! test -e $builddir
then
mkdir $builddir || :
fi
for CF in $configs
do
# Running TREE01 multiple times creates TREE01, TREE01.2, TREE01.3, ...
rd=$resdir/$ds/$CF
if test -d "${rd}"
then
n="`ls -d "${rd}"* | grep '\.[0-9]\+$' |
sed -e 's/^.*\.\([0-9]\+\)/\1/' |
sort -k1n | tail -1`"
if test -z "$n"
then
rd="${rd}.2"
else
n="`expr $n + 1`"
rd="${rd}.${n}"
fi
fi
mkdir "${rd}"
echo Results directory: $rd
kvm-test-1-rcu.sh $CONFIGFRAG/$kversion/$CF $builddir $rd $dur "-nographic $RCU_QEMU_ARG" "rcutorture.test_no_idle_hz=1 rcutorture.verbose=1 $RCU_BOOTARGS"
done
# Tracing: trace_event=rcu:rcu_grace_period,rcu:rcu_future_grace_period,rcu:rcu_grace_period_init,rcu:rcu_nocb_wake,rcu:rcu_preempt_task,rcu:rcu_unlock_preempted_task,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_kfree_callback,rcu:rcu_batch_start,rcu:rcu_invoke_callback,rcu:rcu_invoke_kfree_callback,rcu:rcu_batch_end,rcu:rcu_torture_read,rcu:rcu_barrier
echo " --- `date` Test summary:"
kvm-recheck.sh $resdir/$ds

57
tools/testing/selftests/rcutorture/bin/parse-build.sh Executable file
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#!/bin/sh
#
# Check the build output from an rcutorture run for goodness.
# The "file" is a pathname on the local system, and "title" is
# a text string for error-message purposes.
#
# The file must contain kernel build output.
#
# Usage:
# sh parse-build.sh file title
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
T=$1
title=$2
. functions.sh
if grep -q CC < $T
then
:
else
print_bug $title no build
exit 1
fi
if grep -q "error:" < $T
then
print_bug $title build errors:
grep "error:" < $T
exit 2
fi
exit 0
if egrep -q "rcu[^/]*\.c.*warning:|rcu.*\.h.*warning:" < $T
then
print_warning $title build errors:
egrep "rcu[^/]*\.c.*warning:|rcu.*\.h.*warning:" < $T
exit 2
fi
exit 0

41
tools/testing/selftests/rcutorture/bin/parse-console.sh Executable file
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#!/bin/sh
#
# Check the console output from an rcutorture run for oopses.
# The "file" is a pathname on the local system, and "title" is
# a text string for error-message purposes.
#
# Usage:
# sh parse-console.sh file title
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
T=/tmp/abat-chk-badness.sh.$$
trap 'rm -f $T' 0
file="$1"
title="$2"
. functions.sh
egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:' < $file | grep -v 'ODEBUG: ' | grep -v 'Warning: unable to open an initial console' > $T
if test -s $T
then
print_warning Assertion failure in $file $title
cat $T
fi

106
tools/testing/selftests/rcutorture/bin/parse-rcutorture.sh Executable file
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@ -0,0 +1,106 @@
#!/bin/sh
#
# Check the console output from an rcutorture run for goodness.
# The "file" is a pathname on the local system, and "title" is
# a text string for error-message purposes.
#
# The file must contain rcutorture output, but can be interspersed
# with other dmesg text.
#
# Usage:
# sh parse-rcutorture.sh file title
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
T=/tmp/parse-rcutorture.sh.$$
file="$1"
title="$2"
trap 'rm -f $T.seq' 0
. functions.sh
# check for presence of rcutorture.txt file
if test -f "$file" -a -r "$file"
then
:
else
echo $title unreadable rcutorture.txt file: $file
exit 1
fi
# check for abject failure
if grep -q FAILURE $file || grep -q -e '-torture.*!!!' $file
then
nerrs=`grep --binary-files=text '!!!' $file | tail -1 | awk '{for (i=NF-8;i<=NF;i++) sum+=$i; } END {print sum}'`
print_bug $title FAILURE, $nerrs instances
echo " " $url
exit
fi
grep --binary-files=text 'torture:.*ver:' $file | grep --binary-files=text -v '(null)' | sed -e 's/^(initramfs)[^]]*] //' -e 's/^\[[^]]*] //' |
awk '
BEGIN {
ver = 0;
badseq = 0;
}
{
if (!badseq && ($5 + 0 != $5 || $5 <= ver)) {
badseqno1 = ver;
badseqno2 = $5;
badseqnr = NR;
badseq = 1;
}
ver = $5
}
END {
if (badseq) {
if (badseqno1 == badseqno2 && badseqno2 == ver)
print "RCU GP HANG at " ver " rcutorture stat " badseqnr;
else
print "BAD SEQ " badseqno1 ":" badseqno2 " last:" ver " RCU version " badseqnr;
}
}' > $T.seq
if grep -q SUCCESS $file
then
if test -s $T.seq
then
print_warning $title $title `cat $T.seq`
echo " " $file
exit 2
fi
else
if grep -q RCU_HOTPLUG $file
then
print_warning HOTPLUG FAILURES $title `cat $T.seq`
echo " " $file
exit 3
fi
echo $title no success message, `grep --binary-files=text 'ver:' $file | wc -l` successful RCU version messages
if test -s $T.seq
then
print_warning $title `cat $T.seq`
fi
exit 2
fi

13
tools/testing/selftests/rcutorture/configs/CFLIST Normal file
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@ -0,0 +1,13 @@
TREE01
TREE02
TREE03
TREE04
TREE05
TREE06
TREE07
TREE08
TREE09
SRCU-N
SRCU-P
TINY01
TINY02

8
tools/testing/selftests/rcutorture/configs/SRCU-N Normal file
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@ -0,0 +1,8 @@
CONFIG_RCU_TRACE=n
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
CONFIG_PRINTK_TIME=y

1
tools/testing/selftests/rcutorture/configs/SRCU-N.boot Normal file
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@ -0,0 +1 @@
rcutorture.torture_type=srcu

8
tools/testing/selftests/rcutorture/configs/SRCU-P Normal file
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@ -0,0 +1,8 @@
CONFIG_RCU_TRACE=n
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
CONFIG_PRINTK_TIME=y

1
tools/testing/selftests/rcutorture/configs/SRCU-P.boot Normal file
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@ -0,0 +1 @@
rcutorture.torture_type=srcu

13
tools/testing/selftests/rcutorture/configs/TINY01 Normal file
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@ -0,0 +1,13 @@
CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TINY_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_TRACE=n
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PREEMPT_COUNT=n
CONFIG_PRINTK_TIME=y

13
tools/testing/selftests/rcutorture/configs/TINY02 Normal file
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@ -0,0 +1,13 @@
CONFIG_SMP=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TINY_RCU=y
CONFIG_HZ_PERIODIC=y
CONFIG_NO_HZ_IDLE=n
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_TRACE=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PREEMPT_COUNT=y
CONFIG_PRINTK_TIME=y

23
tools/testing/selftests/rcutorture/configs/TREE01 Normal file
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@ -0,0 +1,23 @@
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_FAST_NO_HZ=y
CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_FANOUT=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_ZERO=y
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

1
tools/testing/selftests/rcutorture/configs/TREE01.boot Normal file
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@ -0,0 +1 @@
rcutorture.torture_type=rcu_bh

26
tools/testing/selftests/rcutorture/configs/TREE02 Normal file
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@ -0,0 +1,26 @@
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_FAST_NO_HZ=n
CONFIG_RCU_TRACE=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_RCU_FANOUT=3
CONFIG_RCU_FANOUT_LEAF=3
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=y
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

23
tools/testing/selftests/rcutorture/configs/TREE03 Normal file
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@ -0,0 +1,23 @@
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_HZ_PERIODIC=y
CONFIG_NO_HZ_IDLE=n
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_FANOUT=4
CONFIG_RCU_FANOUT_LEAF=4
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

25
tools/testing/selftests/rcutorture/configs/TREE04 Normal file
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@ -0,0 +1,25 @@
CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=n
CONFIG_NO_HZ_FULL=y
CONFIG_NO_HZ_FULL_ALL=y
CONFIG_RCU_FAST_NO_HZ=y
CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_RCU_FANOUT=2
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_RCU_CPU_STALL_VERBOSE=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

1
tools/testing/selftests/rcutorture/configs/TREE04.boot Normal file
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rcutorture.torture_type=rcu_bh

25
tools/testing/selftests/rcutorture/configs/TREE05 Normal file
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CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_FAST_NO_HZ=n
CONFIG_RCU_TRACE=n
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_FANOUT=6
CONFIG_RCU_FANOUT_LEAF=6
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_NONE=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_PROVE_RCU_DELAY=y
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

1
tools/testing/selftests/rcutorture/configs/TREE05.boot Normal file
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rcutorture.torture_type=sched

26
tools/testing/selftests/rcutorture/configs/TREE06 Normal file
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CONFIG_SMP=y
CONFIG_NR_CPUS=8
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_FAST_NO_HZ=n
CONFIG_RCU_TRACE=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_RCU_FANOUT=6
CONFIG_RCU_FANOUT_LEAF=6
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_PRINTK_TIME=y

24
tools/testing/selftests/rcutorture/configs/TREE07 Normal file
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CONFIG_SMP=y
CONFIG_NR_CPUS=16
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=n
CONFIG_NO_HZ_FULL=y
CONFIG_NO_HZ_FULL_ALL=y
CONFIG_NO_HZ_FULL_SYSIDLE=y
CONFIG_RCU_FAST_NO_HZ=n
CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_FANOUT=2
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

26
tools/testing/selftests/rcutorture/configs/TREE08 Normal file
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CONFIG_SMP=y
CONFIG_NR_CPUS=16
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_FAST_NO_HZ=n
CONFIG_RCU_TRACE=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_RCU_FANOUT=3
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_ALL=y
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

26
tools/testing/selftests/rcutorture/configs/TREE08-T Normal file
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CONFIG_SMP=y
CONFIG_NR_CPUS=16
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_FAST_NO_HZ=n
CONFIG_RCU_TRACE=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_RCU_FANOUT=3
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_RCU_FANOUT_LEAF=2
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_ALL=y
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

21
tools/testing/selftests/rcutorture/configs/TREE09 Normal file
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CONFIG_SMP=n
CONFIG_NR_CPUS=1
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_HZ_PERIODIC=n
CONFIG_NO_HZ_IDLE=y
CONFIG_NO_HZ_FULL=n
CONFIG_RCU_TRACE=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_RCU_NOCB_CPU=n
CONFIG_DEBUG_LOCK_ALLOC=n
CONFIG_PROVE_RCU_DELAY=n
CONFIG_RCU_CPU_STALL_INFO=n
CONFIG_RCU_CPU_STALL_VERBOSE=n
CONFIG_RCU_BOOST=n
CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
CONFIG_PRINTK_TIME=y

14
tools/testing/selftests/rcutorture/configs/v0.0/CFLIST Normal file
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@ -0,0 +1,14 @@
P1-S-T-NH-SD-SMP-HP
P2-2-t-nh-sd-SMP-hp
P3-3-T-nh-SD-SMP-hp
P4-A-t-NH-sd-SMP-HP
P5-U-T-NH-sd-SMP-hp
N1-S-T-NH-SD-SMP-HP
N2-2-t-nh-sd-SMP-hp
N3-3-T-nh-SD-SMP-hp
N4-A-t-NH-sd-SMP-HP
N5-U-T-NH-sd-SMP-hp
PT1-nh
PT2-NH
NT1-nh
NT3-NH

18
tools/testing/selftests/rcutorture/configs/v0.0/N1-S-T-NH-SD-SMP-HP Normal file
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CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=8
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v0.0/N2-2-t-nh-sd-SMP-hp Normal file
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CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=4
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v0.0/N3-3-T-nh-SD-SMP-hp Normal file
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CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

18
tools/testing/selftests/rcutorture/configs/v0.0/N4-A-t-NH-sd-SMP-HP Normal file
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CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v0.0/N5-U-T-NH-sd-SMP-hp Normal file
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CONFIG_RCU_TRACE=y
CONFIG_DEBUG_KERNEL=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

23
tools/testing/selftests/rcutorture/configs/v0.0/NT1-nh Normal file
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#CHECK#CONFIG_TINY_RCU=y
CONFIG_RCU_TRACE=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=n
#
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v0.0/NT3-NH Normal file
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#CHECK#CONFIG_TINY_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=y
#
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

19
tools/testing/selftests/rcutorture/configs/v0.0/P1-S-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,19 @@
CONFIG_RCU_TRACE=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=8
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v0.0/P2-2-t-nh-sd-SMP-hp Normal file
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CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=4
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v0.0/P3-3-T-nh-SD-SMP-hp Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v0.0/P4-A-t-NH-sd-SMP-HP Normal file
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CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_RT_MUTEXES=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

28
tools/testing/selftests/rcutorture/configs/v0.0/P5-U-T-NH-sd-SMP-hp Normal file
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CONFIG_RCU_TRACE=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_DEBUG_KERNEL=y
CONFIG_PROVE_RCU_DELAY=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_RT_MUTEXES=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

23
tools/testing/selftests/rcutorture/configs/v0.0/PT1-nh Normal file
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CONFIG_TINY_PREEMPT_RCU=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_RCU_TRACE=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=n
#
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v0.0/PT2-NH Normal file
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CONFIG_TINY_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=y
#
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

35
tools/testing/selftests/rcutorture/configs/v0.0/ver_functions.sh Normal file
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@ -0,0 +1,35 @@
#!/bin/bash
#
# Kernel-version-dependent shell functions for the rest of the scripts.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2013
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
# rcutorture_param_n_barrier_cbs bootparam-string
#
# Adds n_barrier_cbs rcutorture module parameter to kernels having it.
rcutorture_param_n_barrier_cbs () {
echo $1
}
# rcutorture_param_onoff bootparam-string config-file
#
# Adds onoff rcutorture module parameters to kernels having it.
rcutorture_param_onoff () {
echo $1
}

17
tools/testing/selftests/rcutorture/configs/v3.12/CFLIST Normal file
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@ -0,0 +1,17 @@
sysidleY.2013.06.19a
sysidleN.2013.06.19a
P1-S-T-NH-SD-SMP-HP
P2-2-t-nh-sd-SMP-hp
P3-3-T-nh-SD-SMP-hp
P4-A-t-NH-sd-SMP-HP
P5-U-T-NH-sd-SMP-hp
P6---t-nh-SD-smp-hp
N1-S-T-NH-SD-SMP-HP
N2-2-t-nh-sd-SMP-hp
N3-3-T-nh-SD-SMP-hp
N4-A-t-NH-sd-SMP-HP
N5-U-T-NH-sd-SMP-hp
PT1-nh
PT2-NH
NT1-nh
NT3-NH

19
tools/testing/selftests/rcutorture/configs/v3.12/N1-S-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,19 @@
CONFIG_RCU_TRACE=y
CONFIG_RCU_FAST_NO_HZ=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=8
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.12/N2-2-t-nh-sd-SMP-hp Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=4
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.12/N3-3-T-nh-SD-SMP-hp Normal file
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@ -0,0 +1,22 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

18
tools/testing/selftests/rcutorture/configs/v3.12/N4-A-t-NH-sd-SMP-HP Normal file
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@ -0,0 +1,18 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.12/N5-U-T-NH-sd-SMP-hp Normal file
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@ -0,0 +1,22 @@
CONFIG_RCU_TRACE=y
CONFIG_DEBUG_KERNEL=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

19
tools/testing/selftests/rcutorture/configs/v3.12/N6---t-nh-SD-smp-hp Normal file
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@ -0,0 +1,19 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_NR_CPUS=1
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

26
tools/testing/selftests/rcutorture/configs/v3.12/N7-4-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,26 @@
CONFIG_RCU_TRACE=y
CONFIG_DEBUG_KERNEL=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=16
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_NONE=y
CONFIG_RCU_NOCB_CPU_ZERO=n
CONFIG_RCU_NOCB_CPU_ALL=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.12/N8-2-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,22 @@
CONFIG_RCU_TRACE=y
CONFIG_DEBUG_KERNEL=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=14
CONFIG_NR_CPUS=16
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_HOTPLUG_CPU=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

23
tools/testing/selftests/rcutorture/configs/v3.12/NT1-nh Normal file
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@ -0,0 +1,23 @@
#CHECK#CONFIG_TINY_RCU=y
CONFIG_RCU_TRACE=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=n
#
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.12/NT3-NH Normal file
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@ -0,0 +1,20 @@
#CHECK#CONFIG_TINY_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=y
#
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.12/P1-S-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_RCU_FAST_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=8
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.12/P2-2-t-nh-sd-SMP-hp Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=4
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.12/P3-3-T-nh-SD-SMP-hp Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.12/P4-A-t-NH-sd-SMP-HP Normal file
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@ -0,0 +1,22 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_RT_MUTEXES=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

28
tools/testing/selftests/rcutorture/configs/v3.12/P5-U-T-NH-sd-SMP-hp Normal file
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@ -0,0 +1,28 @@
CONFIG_RCU_TRACE=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_DEBUG_KERNEL=y
CONFIG_PROVE_RCU_DELAY=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_RT_MUTEXES=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

18
tools/testing/selftests/rcutorture/configs/v3.12/P6---t-nh-SD-smp-hp Normal file
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@ -0,0 +1,18 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=n
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

30
tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,30 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=16
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_NONE=n
CONFIG_RCU_NOCB_CPU_ZERO=n
CONFIG_RCU_NOCB_CPU_ALL=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_SLUB=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

30
tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP-all Normal file
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@ -0,0 +1,30 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=16
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_NONE=y
CONFIG_RCU_NOCB_CPU_ZERO=n
CONFIG_RCU_NOCB_CPU_ALL=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_SLUB=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

30
tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-HP-none Normal file
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@ -0,0 +1,30 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=16
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_NONE=y
CONFIG_RCU_NOCB_CPU_ZERO=n
CONFIG_RCU_NOCB_CPU_ALL=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_SLUB=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

30
tools/testing/selftests/rcutorture/configs/v3.12/P7-4-T-NH-SD-SMP-hp Normal file
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@ -0,0 +1,30 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=16
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_RCU_NOCB_CPU=y
CONFIG_RCU_NOCB_CPU_NONE=n
CONFIG_RCU_NOCB_CPU_ZERO=y
CONFIG_RCU_NOCB_CPU_ALL=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_OBJECTS=y
CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_SLUB=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

23
tools/testing/selftests/rcutorture/configs/v3.12/PT1-nh Normal file
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@ -0,0 +1,23 @@
CONFIG_TINY_PREEMPT_RCU=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_RCU_TRACE=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=n
#
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.12/PT2-NH Normal file
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@ -0,0 +1,22 @@
CONFIG_TINY_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=y
#
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

14
tools/testing/selftests/rcutorture/configs/v3.3/CFLIST Normal file
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@ -0,0 +1,14 @@
P1-S-T-NH-SD-SMP-HP
P2-2-t-nh-sd-SMP-hp
P3-3-T-nh-SD-SMP-hp
P4-A-t-NH-sd-SMP-HP
P5-U-T-NH-sd-SMP-hp
N1-S-T-NH-SD-SMP-HP
N2-2-t-nh-sd-SMP-hp
N3-3-T-nh-SD-SMP-hp
N4-A-t-NH-sd-SMP-HP
N5-U-T-NH-sd-SMP-hp
PT1-nh
PT2-NH
NT1-nh
NT3-NH

19
tools/testing/selftests/rcutorture/configs/v3.3/N1-S-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,19 @@
CONFIG_RCU_TRACE=y
CONFIG_RCU_FAST_NO_HZ=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=8
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.3/N2-2-t-nh-sd-SMP-hp Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=4
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.3/N3-3-T-nh-SD-SMP-hp Normal file
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@ -0,0 +1,22 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

18
tools/testing/selftests/rcutorture/configs/v3.3/N4-A-t-NH-sd-SMP-HP Normal file
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@ -0,0 +1,18 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.3/N5-U-T-NH-sd-SMP-hp Normal file
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@ -0,0 +1,22 @@
CONFIG_RCU_TRACE=y
CONFIG_DEBUG_KERNEL=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=y
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
#CHECK#CONFIG_TREE_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

23
tools/testing/selftests/rcutorture/configs/v3.3/NT1-nh Normal file
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@ -0,0 +1,23 @@
#CHECK#CONFIG_TINY_RCU=y
CONFIG_RCU_TRACE=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=n
#
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.3/NT3-NH Normal file
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@ -0,0 +1,20 @@
#CHECK#CONFIG_TINY_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
#
CONFIG_SMP=n
#
CONFIG_HOTPLUG_CPU=n
#
CONFIG_NO_HZ=y
#
CONFIG_PREEMPT_NONE=y
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=n
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.3/P1-S-T-NH-SD-SMP-HP Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=y
CONFIG_RCU_CPU_STALL_INFO=y
CONFIG_NO_HZ=y
CONFIG_RCU_FAST_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=8
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.3/P2-2-t-nh-sd-SMP-hp Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=4
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

20
tools/testing/selftests/rcutorture/configs/v3.3/P3-3-T-nh-SD-SMP-hp Normal file
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@ -0,0 +1,20 @@
CONFIG_RCU_TRACE=y
CONFIG_NO_HZ=n
CONFIG_SMP=y
CONFIG_RCU_FANOUT=2
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=n
CONFIG_SUSPEND=n
CONFIG_HIBERNATION=n
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

22
tools/testing/selftests/rcutorture/configs/v3.3/P4-A-t-NH-sd-SMP-HP Normal file
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CONFIG_RCU_TRACE=n
CONFIG_NO_HZ=y
CONFIG_SMP=y
CONFIG_RCU_FANOUT=6
CONFIG_NR_CPUS=8
CONFIG_RCU_FANOUT_EXACT=n
CONFIG_HOTPLUG_CPU=y
CONFIG_PREEMPT_NONE=n
CONFIG_PREEMPT_VOLUNTARY=n
CONFIG_PREEMPT=y
#CHECK#CONFIG_TREE_PREEMPT_RCU=y
CONFIG_RCU_TORTURE_TEST=m
CONFIG_MODULE_UNLOAD=y
CONFIG_RT_MUTEXES=y
CONFIG_RCU_BOOST=y
CONFIG_RCU_BOOST_PRIO=2
CONFIG_PROVE_LOCKING=y
CONFIG_PROVE_RCU=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_PRINTK_TIME=y

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