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Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu

Browse source 
Pull v5.10 RCU changes from Paul E. McKenney:

- Debugging for smp_call_function().

- Strict grace periods for KASAN.  The point of this series is to find
  RCU-usage bugs, so the corresponding new RCU_STRICT_GRACE_PERIOD
  Kconfig option depends on both DEBUG_KERNEL and RCU_EXPERT, and is
  further disabled by dfefault.  Finally, the help text includes
  a goodly list of scary caveats.

- New smp_call_function() torture test.

- Torture-test updates.

- Documentation updates.

- Miscellaneous fixes.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ingo Molnar 2020-10-09 08:21:56 +02:00
commit b36c830f8c
57 changed files with 1583 additions and 422 deletions
Download patch file Download diff file Expand all files Collapse all files

54
include/trace/events/rcu.h
View file

@ -74,17 +74,17 @@ TRACE_EVENT_RCU(rcu_grace_period,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gp_seq)
__field(long, gp_seq)
__field(const char *, gpevent)
),
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gp_seq = gp_seq;
__entry->gp_seq = (long)gp_seq;
__entry->gpevent = gpevent;
),
TP_printk("%s %lu %s",
TP_printk("%s %ld %s",
__entry->rcuname, __entry->gp_seq, __entry->gpevent)
);
@ -114,8 +114,8 @@ TRACE_EVENT_RCU(rcu_future_grace_period,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gp_seq)
__field(unsigned long, gp_seq_req)
__field(long, gp_seq)
__field(long, gp_seq_req)
__field(u8, level)
__field(int, grplo)
__field(int, grphi)
@ -124,16 +124,16 @@ TRACE_EVENT_RCU(rcu_future_grace_period,
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gp_seq = gp_seq;
__entry->gp_seq_req = gp_seq_req;
__entry->gp_seq = (long)gp_seq;
__entry->gp_seq_req = (long)gp_seq_req;
__entry->level = level;
__entry->grplo = grplo;
__entry->grphi = grphi;
__entry->gpevent = gpevent;
),
TP_printk("%s %lu %lu %u %d %d %s",
__entry->rcuname, __entry->gp_seq, __entry->gp_seq_req, __entry->level,
TP_printk("%s %ld %ld %u %d %d %s",
__entry->rcuname, (long)__entry->gp_seq, (long)__entry->gp_seq_req, __entry->level,
__entry->grplo, __entry->grphi, __entry->gpevent)
);
@ -153,7 +153,7 @@ TRACE_EVENT_RCU(rcu_grace_period_init,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gp_seq)
__field(long, gp_seq)
__field(u8, level)
__field(int, grplo)
__field(int, grphi)
@ -162,14 +162,14 @@ TRACE_EVENT_RCU(rcu_grace_period_init,
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gp_seq = gp_seq;
__entry->gp_seq = (long)gp_seq;
__entry->level = level;
__entry->grplo = grplo;
__entry->grphi = grphi;
__entry->qsmask = qsmask;
),
TP_printk("%s %lu %u %d %d %lx",
TP_printk("%s %ld %u %d %d %lx",
__entry->rcuname, __entry->gp_seq, __entry->level,
__entry->grplo, __entry->grphi, __entry->qsmask)
);
@ -197,17 +197,17 @@ TRACE_EVENT_RCU(rcu_exp_grace_period,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gpseq)
__field(long, gpseq)
__field(const char *, gpevent)
),
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gpseq = gpseq;
__entry->gpseq = (long)gpseq;
__entry->gpevent = gpevent;
),
TP_printk("%s %lu %s",
TP_printk("%s %ld %s",
__entry->rcuname, __entry->gpseq, __entry->gpevent)
);
@ -316,17 +316,17 @@ TRACE_EVENT_RCU(rcu_preempt_task,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gp_seq)
__field(long, gp_seq)
__field(int, pid)
),
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gp_seq = gp_seq;
__entry->gp_seq = (long)gp_seq;
__entry->pid = pid;
),
TP_printk("%s %lu %d",
TP_printk("%s %ld %d",
__entry->rcuname, __entry->gp_seq, __entry->pid)
);
@ -343,17 +343,17 @@ TRACE_EVENT_RCU(rcu_unlock_preempted_task,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gp_seq)
__field(long, gp_seq)
__field(int, pid)
),
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gp_seq = gp_seq;
__entry->gp_seq = (long)gp_seq;
__entry->pid = pid;
),
TP_printk("%s %lu %d", __entry->rcuname, __entry->gp_seq, __entry->pid)
TP_printk("%s %ld %d", __entry->rcuname, __entry->gp_seq, __entry->pid)
);
/*
@ -374,7 +374,7 @@ TRACE_EVENT_RCU(rcu_quiescent_state_report,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gp_seq)
__field(long, gp_seq)
__field(unsigned long, mask)
__field(unsigned long, qsmask)
__field(u8, level)
@ -385,7 +385,7 @@ TRACE_EVENT_RCU(rcu_quiescent_state_report,
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gp_seq = gp_seq;
__entry->gp_seq = (long)gp_seq;
__entry->mask = mask;
__entry->qsmask = qsmask;
__entry->level = level;
@ -394,7 +394,7 @@ TRACE_EVENT_RCU(rcu_quiescent_state_report,
__entry->gp_tasks = gp_tasks;
),
TP_printk("%s %lu %lx>%lx %u %d %d %u",
TP_printk("%s %ld %lx>%lx %u %d %d %u",
__entry->rcuname, __entry->gp_seq,
__entry->mask, __entry->qsmask, __entry->level,
__entry->grplo, __entry->grphi, __entry->gp_tasks)
@ -415,19 +415,19 @@ TRACE_EVENT_RCU(rcu_fqs,
TP_STRUCT__entry(
__field(const char *, rcuname)
__field(unsigned long, gp_seq)
__field(long, gp_seq)
__field(int, cpu)
__field(const char *, qsevent)
),
TP_fast_assign(
__entry->rcuname = rcuname;
__entry->gp_seq = gp_seq;
__entry->gp_seq = (long)gp_seq;
__entry->cpu = cpu;
__entry->qsevent = qsevent;
),
TP_printk("%s %lu %d %s",
TP_printk("%s %ld %d %s",
__entry->rcuname, __entry->gp_seq,
__entry->cpu, __entry->qsevent)
);