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SUNRPC: Reduce latency when send queue is congested

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Use the low latency transport workqueue to process the task that is
next in line on the xprt->sending queue.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2016-05-27 12:59:33 -04:00
parent 40a5f1b19b
commit f1dc237c60
3 changed files with 41 additions and 12 deletions
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4
include/linux/sunrpc/sched.h
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@@ -230,6 +230,10 @@ void rpc_wake_up_queued_task(struct rpc_wait_queue *,
struct rpc_task *);
void rpc_wake_up(struct rpc_wait_queue *);
struct rpc_task *rpc_wake_up_next(struct rpc_wait_queue *);
struct rpc_task *rpc_wake_up_first_on_wq(struct workqueue_struct *wq,
struct rpc_wait_queue *,
bool (*)(struct rpc_task *, void *),
void *);
struct rpc_task *rpc_wake_up_first(struct rpc_wait_queue *,
bool (*)(struct rpc_task *, void *),
void *);