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| author | Neeraj Upadhyay <neeraju@codeaurora.org> | 2021-01-11 17:15:58 +0530 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2021-03-08 14:17:35 -0800 |
| commit | 47fcbc8dd62f15dc75916225ebacdc3bca9c12b2 (patch) | |
| tree | 8faf31a66f8a773726bebb34ba83fc57fb7a3be6 /kernel/rcu/tree.c | |
| parent | d3ad5bbc4da70c25ad6b386e038e711d0755767b (diff) | |
| download | linux-47fcbc8dd62f15dc75916225ebacdc3bca9c12b2.tar.gz linux-47fcbc8dd62f15dc75916225ebacdc3bca9c12b2.tar.xz | |
rcu: Fix CPU-offline trace in rcutree_dying_cpu
The condition in the trace_rcu_grace_period() in rcutree_dying_cpu() is
backwards, so that it uses the string "cpuofl" when the offline CPU is
blocking the current grace period and "cpuofl-bgp" otherwise. Given that
the "-bgp" stands for "blocking grace period", this is at best misleading.
This commit therefore switches these strings in order to correctly trace
whether the outgoing cpu blocks the current grace period.
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'kernel/rcu/tree.c')
| -rw-r--r-- | kernel/rcu/tree.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index cdf091f35181..e62c2defae98 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -2413,7 +2413,7 @@ int rcutree_dying_cpu(unsigned int cpu) blkd = !!(rnp->qsmask & rdp->grpmask); trace_rcu_grace_period(rcu_state.name, READ_ONCE(rnp->gp_seq), - blkd ? TPS("cpuofl") : TPS("cpuofl-bgp")); + blkd ? TPS("cpuofl-bgp") : TPS("cpuofl")); return 0; } |