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-rw-r--r--fs/nfs/pnfs.c7
-rw-r--r--fs/nfs/pnfs.h1
2 files changed, 7 insertions, 1 deletions
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index ff7fabe33529..57b5728e0b8e 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -738,7 +738,8 @@ pnfs_choose_layoutget_stateid(nfs4_stateid *dst, struct pnfs_layout_hdr *lo,
status = -EAGAIN;
} else if (!nfs4_valid_open_stateid(open_state)) {
status = -EBADF;
- } else if (list_empty(&lo->plh_segs)) {
+ } else if (list_empty(&lo->plh_segs) ||
+ test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags)) {
int seq;
do {
@@ -860,6 +861,8 @@ _pnfs_return_layout(struct inode *ino)
dprintk("NFS: %s no layout segments to return\n", __func__);
goto out;
}
+
+ set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
lo->plh_block_lgets++;
spin_unlock(&ino->i_lock);
pnfs_free_lseg_list(&tmp_list);
@@ -1380,6 +1383,8 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
lo->plh_barrier = be32_to_cpu(res->stateid.seqid);
}
+ clear_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
+
pnfs_get_lseg(lseg);
pnfs_layout_insert_lseg(lo, lseg);
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 79c63114ce77..1dd8a5e96c9f 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -65,6 +65,7 @@ enum {
NFS_LAYOUT_BULK_RECALL, /* bulk recall affecting layout */
NFS_LAYOUT_ROC, /* some lseg had roc bit set */
NFS_LAYOUT_RETURN, /* Return this layout ASAP */
+ NFS_LAYOUT_INVALID_STID, /* layout stateid id is invalid */
};
enum layoutdriver_policy_flags {