Messages in this thread | | | From | Neeraj Upadhyay <> | Subject | Query regarding srcu_funnel_exp_start() | Date | Fri, 27 Oct 2017 14:23:07 +0530 |
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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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