Query regarding srcu_funnel_exp_start()

[Neeraj Upadhyay]

Hi,

One query regarding srcu_funnel_exp_start() function in 
kernel/rcu/srcutree.c.

static void srcu_funnel_exp_start(struct srcu_struct *sp, struct 
srcu_node *snp,
				  unsigned long s)
{
	<snip>
	if (!ULONG_CMP_LT(sp->srcu_gp_seq_needed_exp, s))
		sp->srcu_gp_seq_needed_exp = s;
	<snip>
}

Why is sp->srcu_gp_seq_needed_exp set to 's' if srcu_gp_seq_needed_exp is >=
's'. Shouldn't srcu_gp_seq_needed_exp be equal to the greater of both?


Thanks
Neeraj

--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a
member of the Code Aurora Forum, hosted by The Linux Foundation