NFS: Don't accept more reads/writes if the open context recovery failed
If the state recovery failed, we want to ensure that the application
doesn't try to use the same file descriptor for more reads or writes.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index 1ee5737..4ba32e2 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -305,6 +305,10 @@
{
struct nfs_read_data *rdata = data;
+ if (unlikely(test_bit(NFS_CONTEXT_BAD, &rdata->args.context->flags))) {
+ rpc_exit(task, -EIO);
+ return;
+ }
if (filelayout_reset_to_mds(rdata->header->lseg)) {
dprintk("%s task %u reset io to MDS\n", __func__, task->tk_pid);
filelayout_reset_read(rdata);
@@ -407,6 +411,10 @@
{
struct nfs_write_data *wdata = data;
+ if (unlikely(test_bit(NFS_CONTEXT_BAD, &wdata->args.context->flags))) {
+ rpc_exit(task, -EIO);
+ return;
+ }
if (filelayout_reset_to_mds(wdata->header->lseg)) {
dprintk("%s task %u reset io to MDS\n", __func__, task->tk_pid);
filelayout_reset_write(wdata);