Re: [PATCH 1/1] NFSv4.1 cleanup DS stateid error handling

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On Thu, Mar 8, 2012 at 8:03 AM,  <andros@xxxxxxxxxx> wrote:
> From: Andy Adamson <andros@xxxxxxxxxx>
>
> The error handler nfs4_state parameter is never NULL in the pNFS case as
> the open_context must carry an nfs_state.
>


Note Trond's argument is that with commit the state is avail for the
caller, so it need not be NULL.
But the caller filelayout_commit_done_cb() needs to be adjusted.
Currently commit to ds oopses
due to that.

Fred

> Signed-off-by: Andy Adamson <andros@xxxxxxxxxx>
> ---
>  fs/nfs/nfs4filelayout.c |    9 ++-------
>  1 files changed, 2 insertions(+), 7 deletions(-)
>
> diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
> index b2d3bb5..768f6f8 100644
> --- a/fs/nfs/nfs4filelayout.c
> +++ b/fs/nfs/nfs4filelayout.c
> @@ -99,16 +99,12 @@ static int filelayout_async_handle_error(struct rpc_task *task,
>        case -NFS4ERR_DELEG_REVOKED:
>        case -NFS4ERR_ADMIN_REVOKED:
>        case -NFS4ERR_BAD_STATEID:
> -               if (state != NULL)
> -                       nfs_remove_bad_delegation(state->inode);
> +               nfs_remove_bad_delegation(state->inode);
>        case -NFS4ERR_OPENMODE:
> -               if (state == NULL)
> -                       break;
>                nfs4_schedule_stateid_recovery(mds_server, state);
>                goto wait_on_recovery;
>        case -NFS4ERR_EXPIRED:
> -               if (state != NULL)
> -                       nfs4_schedule_stateid_recovery(mds_server, state);
> +               nfs4_schedule_stateid_recovery(mds_server, state);
>                nfs4_schedule_lease_recovery(mds_client);
>                goto wait_on_recovery;
>        /* DS session errors */
> @@ -145,7 +141,6 @@ wait_on_recovery:
>        if (test_bit(NFS4CLNT_MANAGER_RUNNING, &mds_client->cl_state) == 0)
>                rpc_wake_up_queued_task(&mds_client->cl_rpcwaitq, task);
>        goto out;
> -
>  }
>
>  /* NFS_PROTO call done callback routines */
> --
> 1.7.6.4
>
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