diff options
Diffstat (limited to 'net/sunrpc/cache.c')
| -rw-r--r-- | net/sunrpc/cache.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c index 824e8534e022..14274490f92e 100644 --- a/net/sunrpc/cache.c +++ b/net/sunrpc/cache.c @@ -530,6 +530,13 @@ static int cache_defer_req(struct cache_req *req, struct cache_head *item) struct cache_deferred_req *dreq; int hash = DFR_HASH(item); + if (cache_defer_cnt >= DFR_MAX) { + /* too much in the cache, randomly drop this one, + * or continue and drop the oldest below + */ + if (net_random()&1) + return -ETIMEDOUT; + } dreq = req->defer(req); if (dreq == NULL) return -ETIMEDOUT; @@ -548,17 +555,8 @@ static int cache_defer_req(struct cache_req *req, struct cache_head *item) /* it is in, now maybe clean up */ dreq = NULL; if (++cache_defer_cnt > DFR_MAX) { - /* too much in the cache, randomly drop - * first or last - */ - if (net_random()&1) - dreq = list_entry(cache_defer_list.next, - struct cache_deferred_req, - recent); - else - dreq = list_entry(cache_defer_list.prev, - struct cache_deferred_req, - recent); + dreq = list_entry(cache_defer_list.prev, + struct cache_deferred_req, recent); list_del(&dreq->recent); list_del(&dreq->hash); cache_defer_cnt--; |