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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-01-06 22:04:22 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2017-01-23 11:37:14 -0800
commitbb4e2c08bbfa8eb032db7814f6100086aac102d3 (patch)
tree9f5f9cf8d14f4fb6e70dc72061d6c793032b3625 /kernel/rcu/tree_trace.c
parentllist: Clarify comments about when locking is needed (diff)
downloadlinux-dev-bb4e2c08bbfa8eb032db7814f6100086aac102d3.tar.xz
linux-dev-bb4e2c08bbfa8eb032db7814f6100086aac102d3.zip
rcu: Eliminate unused expedited_normal counter
Expedited grace periods no longer fall back to normal grace periods in response to lock contention, given that expedited grace periods now use the rcu_node tree so as to avoid contention. This commit therfore removes the expedited_normal counter. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Diffstat (limited to 'kernel/rcu/tree_trace.c')
-rw-r--r--kernel/rcu/tree_trace.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
index b1f28972872c..2e932cd1da31 100644
--- a/kernel/rcu/tree_trace.c
+++ b/kernel/rcu/tree_trace.c
@@ -194,9 +194,8 @@ static int show_rcuexp(struct seq_file *m, void *v)
s2 += atomic_long_read(&rdp->exp_workdone2);
s3 += atomic_long_read(&rdp->exp_workdone3);
}
- seq_printf(m, "s=%lu wd0=%lu wd1=%lu wd2=%lu wd3=%lu n=%lu enq=%d sc=%lu\n",
+ seq_printf(m, "s=%lu wd0=%lu wd1=%lu wd2=%lu wd3=%lu enq=%d sc=%lu\n",
rsp->expedited_sequence, s0, s1, s2, s3,
- atomic_long_read(&rsp->expedited_normal),
atomic_read(&rsp->expedited_need_qs),
rsp->expedited_sequence / 2);
return 0;