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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-12-01 14:16:17 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-12-01 14:16:17 -0500 |
| commit | c25573b5134294c0be82bfaecc6d08136835b271 (patch) | |
| tree | e3ac5119ad559cc32d391e8384d83a6ac2c06371 /net | |
| parent | 7fdcf13b292e8b2e38e42de24be2503e37b2cf97 (diff) | |
| download | linux-c25573b5134294c0be82bfaecc6d08136835b271.tar.bz2 | |
SUNRPC: Ensure we always bump the backlog queue in xprt_free_slot
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>
Cc: stable@vger.kernel.org [>=3.1]
Diffstat (limited to 'net')
| -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); } |