On Thu, Jun 02, 2016 at 04:31:03PM +1000, NeilBrown wrote:
>
> This field is not currently in use.
Hah. OK, thanks.--b.
>
> Signed-off-by: NeilBrown <neilb@xxxxxxxx>
> ---
>
> I recently noticed this and wondered what it was for. "Nothing" seems to
> be the answer..
>
> NeilBrown
>
>
> include/linux/sunrpc/cache.h | 2 --
> net/sunrpc/cache.c | 2 +-
> 2 files changed, 1 insertion(+), 3 deletions(-)
>
> diff --git a/include/linux/sunrpc/cache.h b/include/linux/sunrpc/cache.h
> index ed03c9f7f908..62a60eeacb0a 100644
> --- a/include/linux/sunrpc/cache.h
> +++ b/include/linux/sunrpc/cache.h
> @@ -78,8 +78,6 @@ struct cache_detail {
> struct hlist_head * hash_table;
> rwlock_t hash_lock;
>
> - atomic_t inuse; /* active user-space update or lookup */
> -
> char *name;
> void (*cache_put)(struct kref *);
>
> diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
> index 553bf95f7003..4d8e11f94a35 100644
> --- a/net/sunrpc/cache.c
> +++ b/net/sunrpc/cache.c
> @@ -362,7 +362,7 @@ void sunrpc_destroy_cache_detail(struct cache_detail *cd)
> cache_purge(cd);
> spin_lock(&cache_list_lock);
> write_lock(&cd->hash_lock);
> - if (cd->entries || atomic_read(&cd->inuse)) {
> + if (cd->entries) {
> write_unlock(&cd->hash_lock);
> spin_unlock(&cache_list_lock);
> goto out;
> --
> 2.8.3
>
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