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| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-08-29 20:03:52 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-19 13:08:36 -0400 |
| commit | 5405fc44c3377358205ab4095fe9c44716aa0900 (patch) | |
| tree | 0cc85d03b5503ee017f84318c9c32a86fd6e6fc1 /fs/nfs/callback.c | |
| parent | bb6aeba736ba9fd4d9569eec4bc3f7aecb42162a (diff) | |
| download | linux-5405fc44c3377358205ab4095fe9c44716aa0900.tar.bz2 | |
NFSv4.x: Add kernel parameter to control the callback server
Add support for the kernel parameter nfs.callback_nr_threads to set
the number of threads that will be assigned to the callback channel.
Add support for the kernel parameter nfs.nfs.max_session_cb_slots
to set the maximum size of the callback channel slot table.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/callback.c')
| -rw-r--r-- | fs/nfs/callback.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c index b91c49f4670b..532d8e242d4d 100644 --- a/fs/nfs/callback.c +++ b/fs/nfs/callback.c @@ -148,11 +148,14 @@ static inline void nfs_callback_bc_serv(u32 minorversion, struct rpc_xprt *xprt, static int nfs_callback_start_svc(int minorversion, struct rpc_xprt *xprt, struct svc_serv *serv) { - const int nrservs = NFS4_NR_CALLBACK_THREADS; + int nrservs = nfs_callback_nr_threads; int ret; nfs_callback_bc_serv(minorversion, xprt, serv); + if (nrservs < NFS4_MIN_NR_CALLBACK_THREADS) + nrservs = NFS4_MIN_NR_CALLBACK_THREADS; + if (serv->sv_nrthreads-1 == nrservs) return 0; |