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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-04-28 14:15:40 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-07-12 14:27:53 -0700 |
| commit | 8aa670cdacc1820cb0597e4b4b413ef91ede2dd9 (patch) | |
| tree | 4b07ca775c3c60f7a26038ff28988b6954851156 /kernel/rcu/tree_plugin.h | |
| parent | ba04107fc901ddce49686944f7e038b4f0b0a359 (diff) | |
| download | lwn-8aa670cdacc1820cb0597e4b4b413ef91ede2dd9.tar.gz lwn-8aa670cdacc1820cb0597e4b4b413ef91ede2dd9.zip | |
rcu: Convert ->rcu_iw_gpnum to ->gp_seq
This commit switches the interrupt-disabled detection mechanism to
->gp_seq. This mechanism is used as part of RCU CPU stall warnings,
and detects cases where the stall is due to a CPU having interrupts
disabled.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
| -rw-r--r-- | kernel/rcu/tree_plugin.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h index 5b10904669c5..bc32e1f434a6 100644 --- a/kernel/rcu/tree_plugin.h +++ b/kernel/rcu/tree_plugin.h @@ -1763,7 +1763,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu) ticks_value = rsp->gpnum - rdp->gpnum; } print_cpu_stall_fast_no_hz(fast_no_hz, cpu); - delta = rdp->mynode->gpnum - rdp->rcu_iw_gpnum; + delta = rcu_seq_ctr(rdp->mynode->gp_seq - rdp->rcu_iw_gp_seq); pr_err("\t%d-%c%c%c%c: (%lu %s) idle=%03x/%ld/%ld softirq=%u/%u fqs=%ld %s\n", cpu, "O."[!!cpu_online(cpu)], |