Re: [6/9] [RFC] Steps to fixing the driver model locking

From: OGAWA Hirofumi
Date: Wed Mar 23 2005 - 08:10:29 EST


Patrick Mochel <mochel@xxxxxxxxxxxxxxxxxx> writes:

> +void klist_del(struct klist_node * n)
> +{
> + struct klist * k = n->n_klist;
> +
> + spin_lock(&k->k_lock);
> + klist_dec_and_del(n);
> + spin_unlock(&k->k_lock);
> +}

Can't we use atomic_dec_and_lock()?

[...]

> +void klist_remove(struct klist_node * n)
> +{
> + spin_lock(&n->n_klist->k_lock);
> + klist_dec_and_del(n);
> + spin_unlock(&n->n_klist->k_lock);
> + wait_for_completion(&n->n_removed);
> +}

Why isn't those going into drivers/base/? Personally, klist seems
drivers/base stuff rather than generic stuff...
--
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>
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