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Commit 0ee0bf7e authored by Jeff Layton's avatar Jeff Layton Committed by J. Bruce Fields
Browse files

nfsd: track the number of DRC entries in the cache 



Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@redhat.com>
parent 56c2548b

fs/nfsd/nfscache.c

+4 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ static struct hlist_head * cache_hash; 
static struct list_head 	lru_head;

static int			cache_disabled = 1;

static struct kmem_cache	*drc_slab;

static unsigned int		num_drc_entries;



/*

 * Calculate the hash index from an XID.
@@ -68,6 +69,7 @@ nfsd_reply_cache_free_locked(struct svc_cacherep *rp) 
	if (rp->c_type == RC_REPLBUFF)

		kfree(rp->c_replvec.iov_base);

	list_del(&rp->c_lru);

	--num_drc_entries;

	kmem_cache_free(drc_slab, rp);

}
@@ -83,10 +85,12 @@ int nfsd_reply_cache_init(void) 


	INIT_LIST_HEAD(&lru_head);

	i = CACHESIZE;

	num_drc_entries = 0;

	while (i) {

		rp = nfsd_reply_cache_alloc();

		if (!rp)

			goto out_nomem;

		++num_drc_entries;

		list_add(&rp->c_lru, &lru_head);

		i--;

	}