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NFS: Don't accept more reads/writes if the open context recovery failed

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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>
This commit is contained in:
Trond Myklebust
2013-03-18 19:45:14 -04:00
parent 5d422301f9
commit c58c844187
6 changed files with 31 additions and 0 deletions
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8
fs/nfs/nfs4filelayout.c
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@@ -305,6 +305,10 @@ static void filelayout_read_prepare(struct rpc_task *task, void *data)
{
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 @@ static void filelayout_write_prepare(struct rpc_task *task, void *data)
{
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);