Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-gg0-f171.google.com ([209.85.161.171]:41481 "EHLO mail-gg0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754819Ab3BDNSQ (ORCPT ); Mon, 4 Feb 2013 08:18:16 -0500 Received: by mail-gg0-f171.google.com with SMTP id j1so181024ggn.16 for ; Mon, 04 Feb 2013 05:18:16 -0800 (PST) From: Jeff Layton To: bfields@fieldses.org Cc: linux-nfs@vger.kernel.org Subject: [PATCH v2 2/8] nfsd: track the number of DRC entries in the cache Date: Mon, 4 Feb 2013 08:18:01 -0500 Message-Id: <1359983887-28535-3-git-send-email-jlayton@redhat.com> In-Reply-To: <1359983887-28535-1-git-send-email-jlayton@redhat.com> References: <1359983887-28535-1-git-send-email-jlayton@redhat.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: Signed-off-by: Jeff Layton --- fs/nfsd/nfscache.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c index 9d80dfa..c0c5847 100644 --- a/fs/nfsd/nfscache.c +++ b/fs/nfsd/nfscache.c @@ -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--; } -- 1.7.11.7