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authorChuck Lever <cel@netapp.com>2006-03-20 13:44:15 -0500
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-03-20 13:44:15 -0500
commite19b63dafdf7d615b0d36b90990a07e7792b9d3a (patch)
tree45474992fd5d6a1f4c4c49068ec6383429618515 /net/sunrpc/sched.c
parent67ec9f46b889bfb1ab0a4e307d53929d5f0692bf (diff)
SUNRPC: track length of RPC wait queues
RPC wait queue length will eventually be exported to userland via the RPC iostats interface. Test plan: Compile kernel with CONFIG_NFS enabled. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/sched.c')
-rw-r--r--net/sunrpc/sched.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 1b74420d1603..aa0449dcd8e5 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -181,6 +181,7 @@ static void __rpc_add_wait_queue(struct rpc_wait_queue *queue, struct rpc_task *
else
list_add_tail(&task->u.tk_wait.list, &queue->tasks[0]);
task->u.tk_wait.rpc_waitq = queue;
+ queue->qlen++;
rpc_set_queued(task);
dprintk("RPC: %4d added to queue %p \"%s\"\n",
@@ -215,6 +216,7 @@ static void __rpc_remove_wait_queue(struct rpc_task *task)
__rpc_remove_wait_queue_priority(task);
else
list_del(&task->u.tk_wait.list);
+ queue->qlen--;
dprintk("RPC: %4d removed from queue %p \"%s\"\n",
task->tk_pid, queue, rpc_qname(queue));
}