diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-12-01 14:16:17 -0500 |
|---|---|---|
| committer | Rohan Somvanshi <rsomvanshi@nvidia.com> | 2012-01-11 09:30:38 -0800 |
| commit | 12919b9004f4d4cc2190d331f5af0096d81fe62b (patch) | |
| tree | 5d330d666ab746fa8a93f3c451e3e874096f4717 | |
| parent | f29e1d17465957646fb135f1032f8aa7b5e8aeaf (diff) | |
SUNRPC: Ensure we always bump the backlog queue in xprt_free_slot
commit c25573b5134294c0be82bfaecc6d08136835b271 upstream.
Whenever we free a slot, we know that the resulting xprt->num_reqs will
be less than xprt->max_reqs, so we know that we can release at least one
backlogged rpc_task.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Change-Id: I9aeeebb28c4bd8c3a2382ff909e82989d22b97a1
Reviewed-on: http://git-master/r/74178
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
Tested-by: Varun Wadekar <vwadekar@nvidia.com>
| -rw-r--r-- | net/sunrpc/xprt.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index f4385e45a5fc..c64c0ef519b5 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -995,13 +995,11 @@ out_init_req: static void xprt_free_slot(struct rpc_xprt *xprt, struct rpc_rqst *req) { - if (xprt_dynamic_free_slot(xprt, req)) - return; - - memset(req, 0, sizeof(*req)); /* mark unused */ - spin_lock(&xprt->reserve_lock); - list_add(&req->rq_list, &xprt->free); + if (!xprt_dynamic_free_slot(xprt, req)) { + memset(req, 0, sizeof(*req)); /* mark unused */ + list_add(&req->rq_list, &xprt->free); + } rpc_wake_up_next(&xprt->backlog); spin_unlock(&xprt->reserve_lock); } |