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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/super.c | |
| parent | bb6aeba736ba9fd4d9569eec4bc3f7aecb42162a (diff) | |
| download | linux-rt-5405fc44c3377358205ab4095fe9c44716aa0900.tar.gz | |
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/super.c')
| -rw-r--r-- | fs/nfs/super.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c index d39601381adf..001796bcd6c8 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -2848,19 +2848,23 @@ out_invalid_transport_udp: * NFS client for backwards compatibility */ unsigned int nfs_callback_set_tcpport; +unsigned short nfs_callback_nr_threads; /* Default cache timeout is 10 minutes */ unsigned int nfs_idmap_cache_timeout = 600; /* Turn off NFSv4 uid/gid mapping when using AUTH_SYS */ bool nfs4_disable_idmapping = true; unsigned short max_session_slots = NFS4_DEF_SLOT_TABLE_SIZE; +unsigned short max_session_cb_slots = NFS4_DEF_CB_SLOT_TABLE_SIZE; unsigned short send_implementation_id = 1; char nfs4_client_id_uniquifier[NFS4_CLIENT_ID_UNIQ_LEN] = ""; bool recover_lost_locks = false; +EXPORT_SYMBOL_GPL(nfs_callback_nr_threads); EXPORT_SYMBOL_GPL(nfs_callback_set_tcpport); EXPORT_SYMBOL_GPL(nfs_idmap_cache_timeout); EXPORT_SYMBOL_GPL(nfs4_disable_idmapping); EXPORT_SYMBOL_GPL(max_session_slots); +EXPORT_SYMBOL_GPL(max_session_cb_slots); EXPORT_SYMBOL_GPL(send_implementation_id); EXPORT_SYMBOL_GPL(nfs4_client_id_uniquifier); EXPORT_SYMBOL_GPL(recover_lost_locks); @@ -2887,6 +2891,9 @@ static const struct kernel_param_ops param_ops_portnr = { #define param_check_portnr(name, p) __param_check(name, p, unsigned int); module_param_named(callback_tcpport, nfs_callback_set_tcpport, portnr, 0644); +module_param_named(callback_nr_threads, nfs_callback_nr_threads, ushort, 0644); +MODULE_PARM_DESC(callback_nr_threads, "Number of threads that will be " + "assigned to the NFSv4 callback channels."); module_param(nfs_idmap_cache_timeout, int, 0644); module_param(nfs4_disable_idmapping, bool, 0644); module_param_string(nfs4_unique_id, nfs4_client_id_uniquifier, @@ -2896,6 +2903,9 @@ MODULE_PARM_DESC(nfs4_disable_idmapping, module_param(max_session_slots, ushort, 0644); MODULE_PARM_DESC(max_session_slots, "Maximum number of outstanding NFSv4.1 " "requests the client will negotiate"); +module_param(max_session_cb_slots, ushort, 0644); +MODULE_PARM_DESC(max_session_slots, "Maximum number of parallel NFSv4.1 " + "callbacks the client will process for a given server"); module_param(send_implementation_id, ushort, 0644); MODULE_PARM_DESC(send_implementation_id, "Send implementation ID with NFSv4.1 exchange_id"); |