NFSv4.1: _pnfs_return_layout() shouldn't invalidate the layout on failure
Failure of the layoutreturn allocation fails is not a good reason to
mark the pnfs_layout_hdr as having failed a layoutget or i/o. Just
exit cleanly.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 20a1b62..d737557 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -718,8 +718,9 @@
lrp = kzalloc(sizeof(*lrp), GFP_KERNEL);
if (unlikely(lrp == NULL)) {
status = -ENOMEM;
- pnfs_layout_io_set_failed(lo, IOMODE_RW);
- pnfs_layout_io_set_failed(lo, IOMODE_READ);
+ spin_lock(&ino->i_lock);
+ lo->plh_block_lgets--;
+ spin_unlock(&ino->i_lock);
pnfs_put_layout_hdr(lo);
goto out;
}