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NFSv4: Handle early exit in layoutget by returning an error 

If the LAYOUTGET rpc call exits early without an error, convert it to
EAGAIN.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2019-02-13 07:55:31 -05:00
parent f0922a6c0c
commit 18c0778a65
1 changed files with 4 additions and 2 deletions
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6
fs/nfs/nfs4proc.c
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@ -8936,10 +8936,12 @@ nfs4_proc_layoutget(struct nfs4_layoutget *lgp, long *timeout)
if (status != 0)
goto out;
/* if layoutp->len is 0, nfs4_layoutget_prepare called rpc_exit */
if (task->tk_status < 0 || lgp->res.layoutp->len == 0) {
if (task->tk_status < 0) {
status = nfs4_layoutget_handle_exception(task, lgp, &exception);
*timeout = exception.timeout;
} else if (lgp->res.layoutp->len == 0) {
status = -EAGAIN;
*timeout = nfs4_update_delay(&exception.timeout);
} else
lseg = pnfs_layout_process(lgp);
out: