diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/rcu.h | 10 | ||||
| -rw-r--r-- | kernel/rcutiny.c | 13 | ||||
| -rw-r--r-- | kernel/rcutiny_plugin.h | 10 | ||||
| -rw-r--r-- | kernel/rcutree.c | 10 | ||||
| -rw-r--r-- | kernel/rcutree_plugin.h | 2 |
5 files changed, 18 insertions, 27 deletions
diff --git a/kernel/rcu.h b/kernel/rcu.h index 7bc16436aba..d7f00ec8b47 100644 --- a/kernel/rcu.h +++ b/kernel/rcu.h @@ -23,6 +23,12 @@ #ifndef __LINUX_RCU_H #define __LINUX_RCU_H +#ifdef CONFIG_RCU_TRACE +#define RCU_TRACE(stmt) stmt +#else /* #ifdef CONFIG_RCU_TRACE */ +#define RCU_TRACE(stmt) +#endif /* #else #ifdef CONFIG_RCU_TRACE */ + /* * debug_rcu_head_queue()/debug_rcu_head_unqueue() are used internally * by call_rcu() and rcu callback execution, and are therefore not part of the @@ -68,10 +74,10 @@ static inline void __rcu_reclaim(struct rcu_head *head) unsigned long offset = (unsigned long)head->func; if (__is_kfree_rcu_offset(offset)) { - trace_rcu_invoke_kfree_callback(head, offset); + RCU_TRACE(trace_rcu_invoke_kfree_callback(head, offset)); kfree((void *)head - offset); } else { - trace_rcu_invoke_callback(head); + RCU_TRACE(trace_rcu_invoke_callback(head)); head->func(head); } } diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index 19453ba1392..0d28974b78f 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -38,20 +38,7 @@ #include <linux/prefetch.h> #ifdef CONFIG_RCU_TRACE - #include <trace/events/rcu.h> - -#else /* #ifdef CONFIG_RCU_TRACE */ - -/* No by-default tracing in TINY_RCU: Keep TINY_RCU tiny! */ -static void trace_rcu_invoke_kfree_callback(struct rcu_head *rhp, - unsigned long offset) -{ -} -static void trace_rcu_invoke_callback(struct rcu_head *head) -{ -} - #endif /* #else #ifdef CONFIG_RCU_TRACE */ #include "rcu.h" diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h index 6b0cedb383e..791ddf7c99a 100644 --- a/kernel/rcutiny_plugin.h +++ b/kernel/rcutiny_plugin.h @@ -26,29 +26,26 @@ #include <linux/debugfs.h> #include <linux/seq_file.h> -#ifdef CONFIG_RCU_TRACE -#define RCU_TRACE(stmt) stmt -#else /* #ifdef CONFIG_RCU_TRACE */ -#define RCU_TRACE(stmt) -#endif /* #else #ifdef CONFIG_RCU_TRACE */ - /* Global control variables for rcupdate callback mechanism. */ struct rcu_ctrlblk { struct rcu_head *rcucblist; /* List of pending callbacks (CBs). */ struct rcu_head **donetail; /* ->next pointer of last "done" CB. */ struct rcu_head **curtail; /* ->next pointer of last CB. */ RCU_TRACE(long qlen); /* Number of pending CBs. */ + RCU_TRACE(char *name); /* Name of RCU type. */ }; /* Definition for rcupdate control block. */ static struct rcu_ctrlblk rcu_sched_ctrlblk = { .donetail = &rcu_sched_ctrlblk.rcucblist, .curtail = &rcu_sched_ctrlblk.rcucblist, + RCU_TRACE(.name = "rcu_sched") }; static struct rcu_ctrlblk rcu_bh_ctrlblk = { .donetail = &rcu_bh_ctrlblk.rcucblist, .curtail = &rcu_bh_ctrlblk.rcucblist, + RCU_TRACE(.name = "rcu_bh") }; #ifdef CONFIG_DEBUG_LOCK_ALLOC @@ -131,6 +128,7 @@ static struct rcu_preempt_ctrlblk rcu_preempt_ctrlblk = { .rcb.curtail = &rcu_preempt_ctrlblk.rcb.rcucblist, .nexttail = &rcu_preempt_ctrlblk.rcb.rcucblist, .blkd_tasks = LIST_HEAD_INIT(rcu_preempt_ctrlblk.blkd_tasks), + RCU_TRACE(.rcb.name = "rcu_preempt") }; static int rcu_preempted_readers_exp(void); diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 2a9643bd6ae..b953e2c72e2 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -61,7 +61,7 @@ static struct lock_class_key rcu_node_class[NUM_RCU_LVLS]; #define RCU_STATE_INITIALIZER(structname) { \ - .level = { &structname.node[0] }, \ + .level = { &structname##_state.node[0] }, \ .levelcnt = { \ NUM_RCU_LVL_0, /* root of hierarchy. */ \ NUM_RCU_LVL_1, \ @@ -72,17 +72,17 @@ static struct lock_class_key rcu_node_class[NUM_RCU_LVLS]; .signaled = RCU_GP_IDLE, \ .gpnum = -300, \ .completed = -300, \ - .onofflock = __RAW_SPIN_LOCK_UNLOCKED(&structname.onofflock), \ - .fqslock = __RAW_SPIN_LOCK_UNLOCKED(&structname.fqslock), \ + .onofflock = __RAW_SPIN_LOCK_UNLOCKED(&structname##_state.onofflock), \ + .fqslock = __RAW_SPIN_LOCK_UNLOCKED(&structname##_state.fqslock), \ .n_force_qs = 0, \ .n_force_qs_ngp = 0, \ .name = #structname, \ } -struct rcu_state rcu_sched_state = RCU_STATE_INITIALIZER(rcu_sched_state); +struct rcu_state rcu_sched_state = RCU_STATE_INITIALIZER(rcu_sched); DEFINE_PER_CPU(struct rcu_data, rcu_sched_data); -struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh_state); +struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh); DEFINE_PER_CPU(struct rcu_data, rcu_bh_data); static struct rcu_state *rcu_state; diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index 43daa46bc6f..a90bf3c1749 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h @@ -64,7 +64,7 @@ static void __init rcu_bootup_announce_oddness(void) #ifdef CONFIG_TREE_PREEMPT_RCU -struct rcu_state rcu_preempt_state = RCU_STATE_INITIALIZER(rcu_preempt_state); +struct rcu_state rcu_preempt_state = RCU_STATE_INITIALIZER(rcu_preempt); DEFINE_PER_CPU(struct rcu_data, rcu_preempt_data); static struct rcu_state *rcu_state = &rcu_preempt_state; |