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pNFS/flexfiles: Handle expired layout segments in ff_layout_initiate_commit()

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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>
This commit is contained in:
Trond Myklebust 2017-07-12 19:10:58 -04:00 committed by Anna Schumaker
parent 4118188645
commit 4b75053e9b
1 changed files with 4 additions and 0 deletions
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4
fs/nfs/flexfilelayout/flexfilelayout.c
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@ -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)