diff options
| author | Trond Myklebust <trond.myklebust@primarydata.com> | 2016-08-30 03:03:52 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-19 20:08:36 +0300 |
| commit | 5405fc44c3377358205ab4095fe9c44716aa0900 (patch) | |
| tree | 0cc85d03b5503ee017f84318c9c32a86fd6e6fc1 /fs/nfs/nfs4proc.c | |
| parent | bb6aeba736ba9fd4d9569eec4bc3f7aecb42162a (diff) | |
| download | linux-5405fc44c3377358205ab4095fe9c44716aa0900.tar.xz | |
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/nfs4proc.c')
| -rw-r--r-- | fs/nfs/nfs4proc.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index a9dec32ba9ba..251e48e7ba16 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -7463,7 +7463,7 @@ static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args, args->bc_attrs.max_resp_sz = max_bc_payload; args->bc_attrs.max_resp_sz_cached = 0; args->bc_attrs.max_ops = NFS4_MAX_BACK_CHANNEL_OPS; - args->bc_attrs.max_reqs = NFS41_BC_MAX_CALLBACKS; + args->bc_attrs.max_reqs = min_t(unsigned short, max_session_cb_slots, 1); dprintk("%s: Back Channel : max_rqst_sz=%u max_resp_sz=%u " "max_resp_sz_cached=%u max_ops=%u max_reqs=%u\n", @@ -7510,10 +7510,9 @@ static int nfs4_verify_back_channel_attrs(struct nfs41_create_session_args *args return -EINVAL; if (rcvd->max_resp_sz_cached > sent->max_resp_sz_cached) return -EINVAL; - /* These would render the backchannel useless: */ - if (rcvd->max_ops != sent->max_ops) + if (rcvd->max_ops > sent->max_ops) return -EINVAL; - if (rcvd->max_reqs != sent->max_reqs) + if (rcvd->max_reqs > sent->max_reqs) return -EINVAL; out: return 0; |