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rcu: Fix nohz status in stall warning 

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>
This commit is contained in:
Neeraj Upadhyay 2019-03-08 11:57:48 -08:00 committed by Paul E. McKenney
parent b51bcbbf16
commit 6c70e9cd5f
1 changed files with 1 additions and 1 deletions
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2
kernel/rcu/tree_stall.h
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@ -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 */