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

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