Re: [PATCH v2 01/12] NFS: pass net to nfs_callback_down()

From: J. Bruce Fields
Date: Thu May 24 2012 - 12:09:07 EST


I can see that you're passing net to nfs_callback_down(). Could you
please remind me why? What problem does this solve?

--b.

On Tue, May 22, 2012 at 11:35:55AM +0400, Stanislav Kinsbursky wrote:
> Signed-off-by: Stanislav Kinsbursky <skinsbursky@xxxxxxxxxxxxx>
> ---
> fs/nfs/callback.c | 4 ++--
> fs/nfs/callback.h | 2 +-
> fs/nfs/client.c | 2 +-
> 3 files changed, 4 insertions(+), 4 deletions(-)
>
> diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
> index 970659d..f3d7ee2 100644
> --- a/fs/nfs/callback.c
> +++ b/fs/nfs/callback.c
> @@ -322,7 +322,7 @@ out_err:
> /*
> * Kill the callback thread if it's no longer being used.
> */
> -void nfs_callback_down(int minorversion)
> +void nfs_callback_down(int minorversion, struct net *net)
> {
> struct nfs_callback_data *cb_info = &nfs_callback_info[minorversion];
>
> @@ -330,7 +330,7 @@ void nfs_callback_down(int minorversion)
> cb_info->users--;
> if (cb_info->users == 0 && cb_info->task != NULL) {
> kthread_stop(cb_info->task);
> - svc_shutdown_net(cb_info->serv, current->nsproxy->net_ns);
> + svc_shutdown_net(cb_info->serv, net);
> svc_exit_thread(cb_info->rqst);
> cb_info->serv = NULL;
> cb_info->rqst = NULL;
> diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
> index a5527c9..6d900cf 100644
> --- a/fs/nfs/callback.h
> +++ b/fs/nfs/callback.h
> @@ -194,7 +194,7 @@ extern __be32 nfs4_callback_recall(struct cb_recallargs *args, void *dummy,
> struct cb_process_state *cps);
> #ifdef CONFIG_NFS_V4
> extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
> -extern void nfs_callback_down(int minorversion);
> +extern void nfs_callback_down(int minorversion, struct net *net);
> extern int nfs4_validate_delegation_stateid(struct nfs_delegation *delegation,
> const nfs4_stateid *stateid);
> extern int nfs4_set_callback_sessionid(struct nfs_client *clp);
> diff --git a/fs/nfs/client.c b/fs/nfs/client.c
> index da7b5e4..44cd70f 100644
> --- a/fs/nfs/client.c
> +++ b/fs/nfs/client.c
> @@ -222,7 +222,7 @@ static void nfs4_shutdown_session(struct nfs_client *clp)
> static void nfs4_destroy_callback(struct nfs_client *clp)
> {
> if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
> - nfs_callback_down(clp->cl_mvops->minor_version);
> + nfs_callback_down(clp->cl_mvops->minor_version, clp->net);
> }
>
> static void nfs4_shutdown_client(struct nfs_client *clp)
>
--
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