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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/nfs/nfs4filelayoutdev.c
parent9f0ec176b3071e0472582c07ae1e68055b28184d (diff)
downloadlinux-98fc685ae2aa24eae98526e9196b3229d519083a.tar.bz2
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/nfs/nfs4filelayoutdev.c')
-rw-r--r--fs/nfs/nfs4filelayoutdev.c18
1 files changed, 16 insertions, 2 deletions
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 @@
#include <linux/nfs_fs.h>
#include <linux/vmalloc.h>
+#include <linux/module.h>
#include "internal.h"
#include "nfs4filelayout.h"
#define NFSDBG_FACILITY NFSDBG_PNFS_LD
+static unsigned int dataserver_timeo = NFS4_DEF_DS_TIMEO;
+static unsigned int dataserver_retrans = NFS4_DEF_DS_RETRANS;
+
/*
* Data server cache
*
@@ -165,8 +169,9 @@ nfs4_ds_connect(struct nfs_server *mds_srv, struct nfs4_pnfs_ds *ds)
__func__, ds->ds_remotestr, da->da_remotestr);
clp = nfs4_set_ds_client(mds_srv->nfs_client,
- (struct sockaddr *)&da->da_addr,
- da->da_addrlen, IPPROTO_TCP);
+ (struct sockaddr *)&da->da_addr,
+ da->da_addrlen, IPPROTO_TCP,
+ dataserver_timeo, dataserver_retrans);
if (!IS_ERR(clp))
break;
}
@@ -821,3 +826,12 @@ mark_dev_invalid:
filelayout_mark_devid_invalid(devid);
return NULL;
}
+
+module_param(dataserver_retrans, uint, 0644);
+MODULE_PARM_DESC(dataserver_retrans, "The number of times the NFSv4.1 client "
+ "retries a request before it attempts further "
+ " recovery action.");
+module_param(dataserver_timeo, uint, 0644);
+MODULE_PARM_DESC(dataserver_timeo, "The time (in tenths of a second) the "
+ "NFSv4.1 client waits for a response from a "
+ " data server before it retries an NFS request.");