From 038d6493763d900797dfeb555502d3b0d8103fba Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 2 Oct 2012 16:38:41 -0700 Subject: [PATCH] NFSv4.1: Always set the layout stateid if this is the first layoutget If the list of layout segments is empty, we must unconditionally set the layout stateid. Signed-off-by: Trond Myklebust --- fs/nfs/pnfs.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index fe9968a62cad..c8c1d0cc197a 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -558,7 +558,7 @@ pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new, oldseq = be32_to_cpu(lo->plh_stateid.seqid); newseq = be32_to_cpu(new->seqid); - if ((int)(newseq - oldseq) > 0) { + if (list_empty(&lo->plh_segs) || (int)(newseq - oldseq) > 0) { nfs4_stateid_copy(&lo->plh_stateid, new); if (update_barrier) { u32 new_barrier = be32_to_cpu(new->seqid); @@ -1181,6 +1181,10 @@ pnfs_layout_process(struct nfs4_layoutget *lgp) dprintk("%s forget reply due to state\n", __func__); goto out_forget_reply; } + + /* Done processing layoutget. Set the layout stateid */ + pnfs_set_layout_stateid(lo, &res->stateid, false); + init_lseg(lo, lseg); lseg->pls_range = res->range; pnfs_get_lseg(lseg); @@ -1191,8 +1195,6 @@ pnfs_layout_process(struct nfs4_layoutget *lgp) set_bit(NFS_LAYOUT_ROC, &lo->plh_flags); } - /* Done processing layoutget. Set the layout stateid */ - pnfs_set_layout_stateid(lo, &res->stateid, false); spin_unlock(&ino->i_lock); return lseg; out: