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SUNRPC: Adjust rpciod workqueue parameters

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Increase the concurrency level for rpciod threads to allow for allocations
etc that happen in the RPCSEC_GSS layer. Also note that the NFSv4 byte range
locks may now need to allocate memory from inside rpciod.

Add the WQ_HIGHPRI flag to improve latency guarantees while we're at it.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2015-01-23 13:19:17 -05:00
parent 40dd4b7aee
commit 127b21b89f
1 changed files with 2 additions and 1 deletions
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3
net/sunrpc/sched.c
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@ -1069,7 +1069,8 @@ static int rpciod_start(void)
* Create the rpciod thread and wait for it to start.
*/
dprintk("RPC: creating workqueue rpciod\n");
wq = alloc_workqueue("rpciod", WQ_MEM_RECLAIM, 1);
/* Note: highpri because network receive is latency sensitive */
wq = alloc_workqueue("rpciod", WQ_MEM_RECLAIM | WQ_HIGHPRI, 0);
rpciod_workqueue = wq;
return rpciod_workqueue != NULL;
}