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pNFS/flexfiles: Set reasonable default retrans values for the data channel

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Prior to this patch, the retrans value was set at 5, meaning that we
could see a maximum retransmission timeout value of more than 6 minutes.
That's a tad high for NFSv3 where the protocol does allow the server to
drop requests at any time.

Since this is a data channel, let's just set retrans to 0, and the default
timeout to 60s. The user can continue to adjust these defaults using the
dataserver_retrans and dataserver_timeo module parameters.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2016-08-16 11:08:22 -04:00
parent a956beda19
commit 15d03055cf
1 changed files with 2 additions and 2 deletions
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4
fs/nfs/flexfilelayout/flexfilelayoutdev.c
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@ -17,8 +17,8 @@
#define NFSDBG_FACILITY NFSDBG_PNFS_LD #define NFSDBG_FACILITY NFSDBG_PNFS_LD
static unsigned int dataserver_timeo = NFS4_DEF_DS_TIMEO; static unsigned int dataserver_timeo = NFS_DEF_TCP_RETRANS;
static unsigned int dataserver_retrans = NFS4_DEF_DS_RETRANS; static unsigned int dataserver_retrans;
void nfs4_ff_layout_put_deviceid(struct nfs4_ff_layout_ds *mirror_ds) void nfs4_ff_layout_put_deviceid(struct nfs4_ff_layout_ds *mirror_ds)
{ {