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NFSv4.2/pnfs: Make the layoutstats timer configurable

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Allow advanced users to set the layoutstats timer in order to lengthen
or shorten the period between layoutstat transmissions to the server.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2015-08-24 20:39:18 -04:00
parent 266d12d42e
commit bbf58bf348
4 changed files with 20 additions and 1 deletions
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9
Documentation/kernel-parameters.txt
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@@ -2279,6 +2279,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
The default parameter value of '0' causes the kernel
not to attempt recovery of lost locks.
nfs4.layoutstats_timer =
[NFSv4.2] Change the rate at which the kernel sends
layoutstats to the pNFS metadata server.
Setting this to value to 0 causes the kernel to use
whatever value is the default set by the layout
driver. A non-zero value sets the minimum interval
in seconds between layoutstats transmissions.
nfsd.nfs4_disable_idmapping=
[NFSv4] When set to the default of '1', the NFSv4
server will return only numeric uids and gids to