Re: [PATCH RFC ticketlock] Auto-queued ticketlock

From: Steven Rostedt
Date: Mon Jun 10 2013 - 19:03:11 EST


On Sun, 2013-06-09 at 12:36 -0700, Paul E. McKenney wrote:

> +/*
> + * Return a pointer to the queue header associated with the specified lock,
> + * or return NULL if there is no queue for the lock or if the lock's queue
> + * is in transition.
> + */
> +static struct tkt_q_head *tkt_q_find_head(arch_spinlock_t *asp)

BTW, what does "asp" mean? arch_spinlock? If so, can we just call it
"lock" and be consistent with all the other spinlock calls in the
kernel. Because, I keep thinking this has something to do with Microsoft
dynamic web pages.

-- Steve

> +{
> + int i;
> + int start;
> +
> + start = i = tkt_q_hash(asp);
> + do
> + if (tkt_q_heads[i].ref == asp)
> + return &tkt_q_heads[i];
> + while ((i = tkt_q_next_slot(i)) != start);
> + return NULL;
> +}
> +


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