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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2018-02-07 09:13:04 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2018-02-07 09:25:52 -0500 |
| commit | 2275cde4ccb319ae1eb1c6c717f0e547e62019ee (patch) | |
| tree | 21cc3a457909badb0fbefae2e4c05290e89b336a /net/sunrpc | |
| parent | 0c8cbcd337aeae013bb6230f13b77dde0735758f (diff) | |
| download | linux-2275cde4ccb319ae1eb1c6c717f0e547e62019ee.tar.gz linux-2275cde4ccb319ae1eb1c6c717f0e547e62019ee.tar.bz2 linux-2275cde4ccb319ae1eb1c6c717f0e547e62019ee.zip | |
SUNRPC: Queue latency-sensitive socket tasks to xprtiod
The response to a write_space notification is very latency sensitive,
so we should queue it to the lower latency xprtiod_workqueue. This
is something we already do for the other cases where an rpc task
holds the transport XPRT_LOCKED bitlock.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/sched.c | 12 | ||||
| -rw-r--r-- | net/sunrpc/xprt.c | 3 |
2 files changed, 14 insertions, 1 deletions
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index 896691afbb1a..96fdf6011c53 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -461,6 +461,18 @@ static void rpc_wake_up_task_queue_locked(struct rpc_wait_queue *queue, struct r /* * Wake up a task on a specific queue */ +void rpc_wake_up_queued_task_on_wq(struct workqueue_struct *wq, + struct rpc_wait_queue *queue, + struct rpc_task *task) +{ + spin_lock_bh(&queue->lock); + rpc_wake_up_task_on_wq_queue_locked(wq, queue, task); + spin_unlock_bh(&queue->lock); +} + +/* + * Wake up a task on a specific queue + */ void rpc_wake_up_queued_task(struct rpc_wait_queue *queue, struct rpc_task *task) { spin_lock_bh(&queue->lock); diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index 2436fd1125fc..8f0ad4f268da 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -517,7 +517,8 @@ void xprt_write_space(struct rpc_xprt *xprt) if (xprt->snd_task) { dprintk("RPC: write space: waking waiting task on " "xprt %p\n", xprt); - rpc_wake_up_queued_task(&xprt->pending, xprt->snd_task); + rpc_wake_up_queued_task_on_wq(xprtiod_workqueue, + &xprt->pending, xprt->snd_task); } spin_unlock_bh(&xprt->transport_lock); } |