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authorAndy Adamson <andros@netapp.com>2012-04-27 17:53:45 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2012-05-19 17:54:20 -0400
commit98fc685ae2aa24eae98526e9196b3229d519083a (patch)
treeb6700253e6b724f51694ae9b69c60700f4658ab6 /fs
parent9f0ec176b3071e0472582c07ae1e68055b28184d (diff)
NFSv4.1 data server timeo and retrans module parameters
Set the recovery parameters for data servers. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/client.c12
-rw-r--r--fs/nfs/internal.h4
-rw-r--r--fs/nfs/nfs4filelayout.h7
-rw-r--r--fs/nfs/nfs4filelayoutdev.c18
4 files changed, 30 insertions, 11 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 8f1c65210afb..b4e2199c32b3 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1477,8 +1477,8 @@ error:
1477 * the MDS. 1477 * the MDS.
1478 */ 1478 */
1479struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp, 1479struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
1480 const struct sockaddr *ds_addr, 1480 const struct sockaddr *ds_addr, int ds_addrlen,
1481 int ds_addrlen, int ds_proto) 1481 int ds_proto, unsigned int ds_timeo, unsigned int ds_retrans)
1482{ 1482{
1483 struct nfs_client_initdata cl_init = { 1483 struct nfs_client_initdata cl_init = {
1484 .addr = ds_addr, 1484 .addr = ds_addr,
@@ -1488,12 +1488,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
1488 .minorversion = mds_clp->cl_minorversion, 1488 .minorversion = mds_clp->cl_minorversion,
1489 .net = mds_clp->net, 1489 .net = mds_clp->net,
1490 }; 1490 };
1491 struct rpc_timeout ds_timeout = { 1491 struct rpc_timeout ds_timeout;
1492 .to_initval = 15 * HZ,
1493 .to_maxval = 15 * HZ,
1494 .to_retries = 1,
1495 .to_exponential = 1,
1496 };
1497 struct nfs_client *clp; 1492 struct nfs_client *clp;
1498 1493
1499 /* 1494 /*
@@ -1501,6 +1496,7 @@ struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
1501 * cl_ipaddr so as to use the same EXCHANGE_ID co_ownerid as the MDS 1496 * cl_ipaddr so as to use the same EXCHANGE_ID co_ownerid as the MDS
1502 * (section 13.1 RFC 5661). 1497 * (section 13.1 RFC 5661).
1503 */ 1498 */
1499 nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans);
1504 clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr, 1500 clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr,
1505 mds_clp->cl_rpcclient->cl_auth->au_flavor, 0); 1501 mds_clp->cl_rpcclient->cl_auth->au_flavor, 0);
1506 1502
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 6ed96c7ffcb2..1466c5d88f09 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -172,7 +172,9 @@ extern void nfs_mark_client_ready(struct nfs_client *clp, int state);
172extern int nfs4_check_client_ready(struct nfs_client *clp); 172extern int nfs4_check_client_ready(struct nfs_client *clp);
173extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp, 173extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
174 const struct sockaddr *ds_addr, 174 const struct sockaddr *ds_addr,
175 int ds_addrlen, int ds_proto); 175 int ds_addrlen, int ds_proto,
176 unsigned int ds_timeo,
177 unsigned int ds_retrans);
176#ifdef CONFIG_PROC_FS 178#ifdef CONFIG_PROC_FS
177extern int __init nfs_fs_proc_init(void); 179extern int __init nfs_fs_proc_init(void);
178extern void nfs_fs_proc_exit(void); 180extern void nfs_fs_proc_exit(void);
diff --git a/fs/nfs/nfs4filelayout.h b/fs/nfs/nfs4filelayout.h
index 2f6330c4ee3e..6fb1901ffd6a 100644
--- a/fs/nfs/nfs4filelayout.h
+++ b/fs/nfs/nfs4filelayout.h
@@ -33,6 +33,13 @@
33#include "pnfs.h" 33#include "pnfs.h"
34 34
35/* 35/*
36 * Default data server connection timeout and retrans vaules.
37 * Set by module paramters dataserver_timeo and dataserver_retrans.
38 */
39#define NFS4_DEF_DS_TIMEO 60
40#define NFS4_DEF_DS_RETRANS 5
41
42/*
36 * Field testing shows we need to support up to 4096 stripe indices. 43 * Field testing shows we need to support up to 4096 stripe indices.
37 * We store each index as a u8 (u32 on the wire) to keep the memory footprint 44 * We store each index as a u8 (u32 on the wire) to keep the memory footprint
38 * reasonable. This in turn means we support a maximum of 256 45 * reasonable. This in turn means we support a maximum of 256
diff --git a/fs/nfs/nfs4filelayoutdev.c b/fs/nfs/nfs4filelayoutdev.c
index 7e0be3e331d7..d4d2032c1992 100644
--- a/fs/nfs/nfs4filelayoutdev.c
+++ b/fs/nfs/nfs4filelayoutdev.c
@@ -30,12 +30,16 @@
30 30
31#include <linux/nfs_fs.h> 31#include <linux/nfs_fs.h>
32#include <linux/vmalloc.h> 32#include <linux/vmalloc.h>
33#include <linux/module.h>
33 34
34#include "internal.h" 35#include "internal.h"
35#include "nfs4filelayout.h" 36#include "nfs4filelayout.h"
36 37
37#define NFSDBG_FACILITY NFSDBG_PNFS_LD 38#define NFSDBG_FACILITY NFSDBG_PNFS_LD
38 39
40static unsigned int dataserver_timeo = NFS4_DEF_DS_TIMEO;
41static unsigned int dataserver_retrans = NFS4_DEF_DS_RETRANS;
42
39/* 43/*
40 * Data server cache 44 * Data server cache
41 * 45 *
@@ -165,8 +169,9 @@ nfs4_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds)
165 __func__, ds->ds_remotestr, da->da_remotestr); 169 __func__, ds->ds_remotestr, da->da_remotestr);
166 170
167 clp = nfs4_set_ds_client(mds_srv->nfs_client, 171 clp = nfs4_set_ds_client(mds_srv->nfs_client,
168 (struct sockaddr *)&da->da_addr, 172 (struct sockaddr *)&da->da_addr,
169 da->da_addrlen, IPPROTO_TCP); 173 da->da_addrlen, IPPROTO_TCP,
174 dataserver_timeo, dataserver_retrans);
170 if (!IS_ERR(clp)) 175 if (!IS_ERR(clp))
171 break; 176 break;
172 } 177 }
@@ -821,3 +826,12 @@ mark_dev_invalid:
821 filelayout_mark_devid_invalid(devid); 826 filelayout_mark_devid_invalid(devid);
822 return NULL; 827 return NULL;
823} 828}
829
830module_param(dataserver_retrans, uint, 0644);
831MODULE_PARM_DESC(dataserver_retrans, "The number of times the NFSv4.1 client "
832 "retries a request before it attempts further "
833 " recovery action.");
834module_param(dataserver_timeo, uint, 0644);
835MODULE_PARM_DESC(dataserver_timeo, "The time (in tenths of a second) the "
836 "NFSv4.1 client waits for a response from a "
837 " data server before it retries an NFS request.");