nfs: flexfilelayout: remove v3-only data server limitation
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>
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 457cfeb..8ca9cc6 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -119,7 +119,13 @@
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);