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rcu: Convert rcu_quiescent_state_report tracepoint to ->gp_seq

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This commit makes the rcu_quiescent_state_report tracepoint use ->gp_seq
instead of ->gpnum.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2018-05-01 13:35:20 -07:00
parent 865aa1e08d
commit db023296f0
3 changed files with 8 additions and 8 deletions
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12
include/trace/events/rcu.h
View File

@ -354,15 +354,15 @@ TRACE_EVENT(rcu_unlock_preempted_task,
*/
TRACE_EVENT(rcu_quiescent_state_report,
TP_PROTO(const char *rcuname, unsigned long gpnum,
TP_PROTO(const char *rcuname, unsigned long gp_seq,
unsigned long mask, unsigned long qsmask,
u8 level, int grplo, int grphi, int gp_tasks),
TP_ARGS(rcuname, gpnum, mask, qsmask, level, grplo, grphi, gp_tasks),
TP_ARGS(rcuname, gp_seq, mask, qsmask, level, grplo, grphi, gp_tasks),
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gpnum)
__field(unsigned long, gp_seq)
__field(unsigned long, mask)
__field(unsigned long, qsmask)
__field(u8, level)
@ -373,7 +373,7 @@ TRACE_EVENT(rcu_quiescent_state_report,
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gpnum = gpnum;
__entry->gp_seq = gp_seq;
__entry->mask = mask;
__entry->qsmask = qsmask;
__entry->level = level;
@ -383,7 +383,7 @@ TRACE_EVENT(rcu_quiescent_state_report,
),
TP_printk("%s %lu %lx>%lx %u %d %d %u",
__entry->rcuname, __entry->gpnum,
__entry->rcuname, __entry->gp_seq,
__entry->mask, __entry->qsmask, __entry->level,
__entry->grplo, __entry->grphi, __entry->gp_tasks)
);
@ -763,7 +763,7 @@ TRACE_EVENT(rcu_barrier,
#define trace_rcu_nocb_wake(rcuname, cpu, reason) do { } while (0)
#define trace_rcu_preempt_task(rcuname, pid, gp_seq) do { } while (0)
#define trace_rcu_unlock_preempted_task(rcuname, gp_seq, pid) do { } while (0)
#define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \
#define trace_rcu_quiescent_state_report(rcuname, gp_seq, mask, qsmask, level, \
grplo, grphi, gp_tasks) do { } \
while (0)
#define trace_rcu_fqs(rcuname, gpnum, cpu, qsevent) do { } while (0)

2
kernel/rcu/tree.c
View File

@ -2229,7 +2229,7 @@ rcu_report_qs_rnp(unsigned long mask, struct rcu_state *rsp,
WARN_ON_ONCE(!rcu_is_leaf_node(rnp) &&
rcu_preempt_blocked_readers_cgp(rnp));
rnp->qsmask &= ~mask;
trace_rcu_quiescent_state_report(rsp->name, rnp->gpnum,
trace_rcu_quiescent_state_report(rsp->name, rnp->gp_seq,
mask, rnp->qsmask, rnp->level,
rnp->grplo, rnp->grphi,
!!rnp->gp_tasks);

2
kernel/rcu/tree_plugin.h
View File

@ -566,7 +566,7 @@ void rcu_read_unlock_special(struct task_struct *t)
empty_exp_now = sync_rcu_preempt_exp_done(rnp);
if (!empty_norm && !rcu_preempt_blocked_readers_cgp(rnp)) {
trace_rcu_quiescent_state_report(TPS("preempt_rcu"),
rnp->gpnum,
rnp->gp_seq,
0, rnp->qsmask,
rnp->level,
rnp->grplo,