From 671e1fcf63fd115eabcb693b06cbc2e4a3d1a3a3 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 16 Jun 2009 11:03:20 +1000 Subject: nfsd: optimise the starting of zero threads when none are running. Currently, if we ask to set then number of nfsd threads to zero when there are none running, we set up all the sockets and register the service, and then tear it all down again. This is pointless. So detect that case and exit promptly. (also remove an assignment to 'error' which was never used. Signed-off-by: NeilBrown Acked-by: Jeff Layton --- fs/nfsd/nfssvc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index 209eaa0885d..d4c9884cd54 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -390,12 +390,14 @@ nfsd_svc(unsigned short port, int nrservs) mutex_lock(&nfsd_mutex); dprintk("nfsd: creating service\n"); - error = -EINVAL; if (nrservs <= 0) nrservs = 0; if (nrservs > NFSD_MAXSERVS) nrservs = NFSD_MAXSERVS; - + error = 0; + if (nrservs == 0 && nfsd_serv == NULL) + goto out; + /* Readahead param cache - will no-op if it already exists */ error = nfsd_racache_init(2*nrservs); if (error<0) -- cgit v1.2.3