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nfs: flexfilelayout: remove v3-only data server limitation

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Flexfilelayout supports data servers which talk NFS v3 and v4.{0,1,2}.
However, this code path is disabled and v3 only servers are accepted.
This change removes this limitation.
Signed-off-by: Tigran Mkrtchyan <tigran.mkrtchyan@desy.de>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Tigran Mkrtchyan 2017-04-04 15:12:51 +02:00 committed by Trond Myklebust
parent b044f64513
commit a7878ca140
1 changed files with 7 additions and 1 deletions
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8
fs/nfs/flexfilelayout/flexfilelayoutdev.c
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@ -119,7 +119,13 @@ nfs4_ff_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
if (ds_versions[i].wsize > NFS_MAX_FILE_IO_SIZE)
ds_versions[i].wsize = NFS_MAX_FILE_IO_SIZE;
if (ds_versions[i].version != 3 || ds_versions[i].minor_version != 0) {
/*
* check for valid major/minor combination.
* currently we support dataserver which talk:
* v3, v4.0, v4.1, v4.2
*/
if (!((ds_versions[i].version == 3 && ds_versions[i].minor_version == 0) ||
(ds_versions[i].version == 4 && ds_versions[i].minor_version < 3))) {
dprintk("%s: [%d] unsupported ds version %d-%d\n", __func__,
i, ds_versions[i].version,
ds_versions[i].minor_version);