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authorDave Airlie <airlied@redhat.com>2018-11-29 10:34:03 +1000
committerDave Airlie <airlied@redhat.com>2018-11-29 10:34:03 +1000
commit1ec28f8b8ada4e4f77d1af006a3a474f4f83b8e3 (patch)
tree2e810e02a66cdec0bc82a8555796b7083ad03416 /fs/nfs/flexfilelayout/flexfilelayoutdev.c
parent61647c77cb15354a329cbb36fe7a2253b36b51b1 (diff)
parent2e6e902d185027f8e3cb8b7305238f7e35d6a436 (diff)
Merge v4.20-rc4 into drm-next
Requested by Boris Brezillon for some vc4 fixes that are needed for future vc4 work. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'fs/nfs/flexfilelayout/flexfilelayoutdev.c')
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayoutdev.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 74d8d5352438..d23347389626 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -370,6 +370,25 @@ out:
return fh;
}
+int
+nfs4_ff_layout_select_ds_stateid(struct pnfs_layout_segment *lseg,
+ u32 mirror_idx,
+ nfs4_stateid *stateid)
+{
+ struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, mirror_idx);
+
+ if (!ff_layout_mirror_valid(lseg, mirror, false)) {
+ pr_err_ratelimited("NFS: %s: No data server for mirror offset index %d\n",
+ __func__, mirror_idx);
+ goto out;
+ }
+
+ nfs4_stateid_copy(stateid, &mirror->stateid);
+ return 1;
+out:
+ return 0;
+}
+
/**
* nfs4_ff_layout_prepare_ds - prepare a DS connection for an RPC call
* @lseg: the layout segment we're operating on