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| author |  NeilBrown <neilb@suse.de>
| 2023-09-11 10:40:09 -0400 |
|---|---|---|
| committer |  Chuck Lever <chuck.lever@oracle.com>
| 2023-10-16 12:44:07 -0400 |
| commit | 2e8fc923fe476db8cab9b6458027eccb22f3b6e6 (patch) | |
| tree | 5b143877a907eb433062042d60d09f469b2a9728 /fs/nfsd/nfssvc.c | |
| parent | SUNRPC: use lwq for sp_sockets - renamed to sp_xprts (diff) | |
| download | linux-2e8fc923fe476db8cab9b6458027eccb22f3b6e6.tar.gz linux-2e8fc923fe476db8cab9b6458027eccb22f3b6e6.tar.bz2 linux-2e8fc923fe476db8cab9b6458027eccb22f3b6e6.zip | |
SUNRPC: change sp_nrthreads to atomic_t
Using an atomic_t avoids the need to take a spinlock (which can soon be
removed).
Choosing a thread to kill needs to be careful as we cannot set the "die
now" bit atomically with the test on the count. Instead we temporarily
increase the count.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'fs/nfsd/nfssvc.c')
| -rw-r--r-- | fs/nfsd/nfssvc.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c index 0b03a2e50dee..433154b9eee0 100644 --- a/fs/nfsd/nfssvc.c +++ b/fs/nfsd/nfssvc.c @@ -713,14 +713,13 @@ int nfsd_nrpools(struct net *net) int nfsd_get_nrthreads(int n, int *nthreads, struct net *net) { - int i = 0; struct nfsd_net *nn = net_generic(net, nfsd_net_id); + struct svc_serv *serv = nn->nfsd_serv; + int i; - if (nn->nfsd_serv != NULL) { - for (i = 0; i < nn->nfsd_serv->sv_nrpools && i < n; i++) - nthreads[i] = nn->nfsd_serv->sv_pools[i].sp_nrthreads; - } - + if (serv) + for (i = 0; i < serv->sv_nrpools && i < n; i++) + nthreads[i] = atomic_read(&serv->sv_pools[i].sp_nrthreads); return 0; } |