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authorTrond Myklebust <trond.myklebust@primarydata.com>2017-07-12 19:10:58 -0400
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2017-07-19 15:28:21 -0400
commit4b75053e9bb6db4b700526d2d67c67a0d07f867e (patch)
tree2ccf315dc43d1df8117abc368d53679e0c68fbeb /fs
parent41181886459b281ed1346369f27b3c3bb8e2dde3 (diff)
downloadlinux-4b75053e9bb6db4b700526d2d67c67a0d07f867e.tar.bz2
pNFS/flexfiles: Handle expired layout segments in ff_layout_initiate_commit()
If the layout has expired due to a fencing event, then we should not attempt to commit to the DS. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/nfs/flexfilelayout/flexfilelayout.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 1f2ac3dd0fe5..b0fa83a60754 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1842,6 +1842,10 @@ static int ff_layout_initiate_commit(struct nfs_commit_data *data, int how)
int vers, ret;
struct nfs_fh *fh;
+ if (!lseg || !(pnfs_is_valid_lseg(lseg) ||
+ test_bit(NFS_LSEG_LAYOUTRETURN, &lseg->pls_flags)))
+ goto out_err;
+
idx = calc_ds_index_from_commit(lseg, data->ds_commit_index);
ds = nfs4_ff_layout_prepare_ds(lseg, idx, true);
if (!ds)