On Wed, Jun 01, 2016 at 10:52:57AM +0300, Nikolay Borisov wrote:
> This patch adds the necessary members to user_struct. The idea behind
> the solution is really simple - user the userns pointers as keys into
> a hash table which holds the inotify instances/watches counts. This
> allows to account the limits per userns rather than per real user,
> which makes certain scenarios such as a single mapped user in a
> container deplete the inotify resources for all other users, which
> map to the exact same real user.
>
> Signed-off-by: Nikolay Borisov <ker...@kyup.com>
...
> +static inline unsigned long inotify_dec_return_dev(struct user_struct *user,
> + void *key)
> +{
> + struct inotify_state *state;
> + unsigned long ret;
> +
> + spin_lock(&user->inotify_lock);
> + state = __find_inotify_state(user, key);
> + ret = --state->inotify_devs;
> + spin_unlock(&user->inotify_lock);
> +
> + return ret;
> +}
Hi Nikolay! Could you please explain why this new function is not used anywhere
in other patches or I miss something obvious?
