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authorIngo Molnar <mingo@kernel.org>2018-12-03 10:47:53 +0100
committerIngo Molnar <mingo@kernel.org>2018-12-03 10:47:53 +0100
commitdf60673198ae678f68af54873b8904ba93fe13a0 (patch)
tree6e9a3393d0be7b68a69c2bbc58f4325ceb6fd853 /fs/nfs/flexfilelayout/flexfilelayoutdev.c
parent89f579ce99f7e028e81885d3965f973c0f787611 (diff)
parent2595646791c319cadfdbf271563aac97d0843dc7 (diff)
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Merge tag 'v4.20-rc5' into x86/cleanups, to sync up the tree
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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