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

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
...@@ -27,6 +27,7 @@ static struct hlist_head * cache_hash; ...@@ -27,6 +27,7 @@ static struct hlist_head * cache_hash;
static struct list_head lru_head; static struct list_head lru_head;
static int cache_disabled = 1; static int cache_disabled = 1;
static struct kmem_cache *drc_slab; static struct kmem_cache *drc_slab;
static unsigned int num_drc_entries;
/* /*
* Calculate the hash index from an XID. * Calculate the hash index from an XID.
...@@ -68,6 +69,7 @@ nfsd_reply_cache_free_locked(struct svc_cacherep *rp) ...@@ -68,6 +69,7 @@ nfsd_reply_cache_free_locked(struct svc_cacherep *rp)
if (rp->c_type == RC_REPLBUFF) if (rp->c_type == RC_REPLBUFF)
kfree(rp->c_replvec.iov_base); kfree(rp->c_replvec.iov_base);
list_del(&rp->c_lru); list_del(&rp->c_lru);
--num_drc_entries;
kmem_cache_free(drc_slab, rp); kmem_cache_free(drc_slab, rp);
} }
...@@ -83,10 +85,12 @@ int nfsd_reply_cache_init(void) ...@@ -83,10 +85,12 @@ int nfsd_reply_cache_init(void)
INIT_LIST_HEAD(&lru_head); INIT_LIST_HEAD(&lru_head);
i = CACHESIZE; i = CACHESIZE;
num_drc_entries = 0;
while (i) { while (i) {
rp = nfsd_reply_cache_alloc(); rp = nfsd_reply_cache_alloc();
if (!rp) if (!rp)
goto out_nomem; goto out_nomem;
++num_drc_entries;
list_add(&rp->c_lru, &lru_head); list_add(&rp->c_lru, &lru_head);
i--; i--;
} }
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment