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authorTrond Myklebust <trond.myklebust@primarydata.com>2016-05-27 17:39:50 +0300
committerTrond Myklebust <trond.myklebust@primarydata.com>2016-06-13 19:35:51 +0300
commit40a5f1b19bacb2de7a051be952dee85e38c9e5f5 (patch)
tree0e8ead168d326d40cfdea25a745699741d5d3f3e /include/linux/sunrpc
parent5157b956961d78effd78399e1574b08b9b618422 (diff)
downloadlinux-40a5f1b19bacb2de7a051be952dee85e38c9e5f5.tar.xz
SUNRPC: RPC transport queue must be low latency
rpciod can easily get congested due to the long list of queued rpc_tasks. Having the receive queue wait in turn for those tasks to complete can therefore be a bottleneck. Address the problem by separating the workqueues into: - rpciod: manages rpc_tasks - xprtiod: manages transport related work. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/sched.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 05a1809c44d9..ef780b3b5e31 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -247,6 +247,7 @@ void rpc_show_tasks(struct net *);
int rpc_init_mempool(void);
void rpc_destroy_mempool(void);
extern struct workqueue_struct *rpciod_workqueue;
+extern struct workqueue_struct *xprtiod_workqueue;
void rpc_prepare_task(struct rpc_task *task);
static inline int rpc_wait_for_completion_task(struct rpc_task *task)