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rcu: Fix misprint in srcu_funnel_exp_start

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The srcu_funnel_exp_start() function checks to see if the srcu_struct
structure's expedited grace period counter needs updating to reflect a
newly arrived request for an expedited SRCU grace period.  Unfortunately,
the check is backwards, so this commit reverses the sense of the test.

Signed-off-by: Ildar Ismagilov <devix84@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Ildar Ismagilov 2018-01-30 15:40:16 -08:00 committed by Paul E. McKenney
parent b5482a0659
commit 274afd6bfa
1 changed files with 1 additions and 1 deletions
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2
kernel/rcu/srcutree.c
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@ -626,7 +626,7 @@ static void srcu_funnel_exp_start(struct srcu_struct *sp, struct srcu_node *snp,
spin_unlock_irqrestore_rcu_node(snp, flags);
}
spin_lock_irqsave_rcu_node(sp, flags);
if (!ULONG_CMP_LT(sp->srcu_gp_seq_needed_exp, s))
if (ULONG_CMP_LT(sp->srcu_gp_seq_needed_exp, s))
sp->srcu_gp_seq_needed_exp = s;
spin_unlock_irqrestore_rcu_node(sp, flags);
}