pNFS: Ensure we check layout validity before marking it for return
pnfs_error_mark_layout_for_return needs to check that the layout is
valid before calling pnfs_set_plh_return_info().
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index eff266e..e45b3ff 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -2049,6 +2049,10 @@
bool return_now = false;
spin_lock(&inode->i_lock);
+ if (!pnfs_layout_is_valid(lo)) {
+ spin_unlock(&inode->i_lock);
+ return;
+ }
pnfs_set_plh_return_info(lo, range.iomode, 0);
/* Block LAYOUTGET */
set_bit(NFS_LAYOUT_RETURN, &lo->plh_flags);