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Subject[PATCH tip/core/rcu 11/11] rcu: Fix nohz status in stall warning
Date
From: Neeraj Upadhyay <neeraju@codeaurora.org>

The Documentation/RCU/stallwarn.txt file says that stall warnings
print "D" if dyntick-idle processing is enabled, but the code in
print_cpu_stall_fast_no_hz() prints "." instead. This commit therefore
reverses the sense of the test to make the code match the documentation.

Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
---
kernel/rcu/tree_stall.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h
index 9e3db08d02bc..f65a73a97323 100644
--- a/kernel/rcu/tree_stall.h
+++ b/kernel/rcu/tree_stall.h
@@ -267,7 +267,7 @@ static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
rdp->last_accelerate & 0xffff, jiffies & 0xffff,
".l"[rdp->all_lazy],
".L"[!rcu_segcblist_n_nonlazy_cbs(&rdp->cblist)],
- ".D"[!rdp->tick_nohz_enabled_snap]);
+ ".D"[!!rdp->tick_nohz_enabled_snap]);
}

#else /* #ifdef CONFIG_RCU_FAST_NO_HZ */
--
2.17.1
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