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NFS: Fix stateid used for NFS v4 closes

Message ID 1425332769-7047-1-git-send-email-Anna.Schumaker@Netapp.com (mailing list archive)
State New, archived
Headers show

Commit Message

Schumaker, Anna March 2, 2015, 9:46 p.m. UTC
After 566fcec60 the client uses the "current stateid" from the
nfs4_state structure to close a file.  This could potentially contain a
delegation stateid, which is disallowed by the protocol and causes
servers to return NFS4ERR_BAD_STATEID.  This patch restores the
(correct) behavior of sending the open stateid to close a file.

Reported-by: Olga Kornievskaia <kolga@netapp.com>
Fixes: 566fcec60 (NFSv4: Fix an atomicity problem in CLOSE)
Signed-off-by: Anna Schumaker <Anna.Schumaker@netapp.com>
---
 fs/nfs/nfs4proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Trond Myklebust March 2, 2015, 10:30 p.m. UTC | #1
On Mon, Mar 2, 2015 at 4:46 PM, Anna Schumaker
<Anna.Schumaker@netapp.com> wrote:
> After 566fcec60 the client uses the "current stateid" from the
> nfs4_state structure to close a file.  This could potentially contain a
> delegation stateid, which is disallowed by the protocol and causes
> servers to return NFS4ERR_BAD_STATEID.  This patch restores the
> (correct) behavior of sending the open stateid to close a file.
>
> Reported-by: Olga Kornievskaia <kolga@netapp.com>
> Fixes: 566fcec60 (NFSv4: Fix an atomicity problem in CLOSE)
> Signed-off-by: Anna Schumaker <Anna.Schumaker@netapp.com>
> ---
>  fs/nfs/nfs4proc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index a211daf..7b409ff 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -2691,7 +2691,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
>         is_rdwr = test_bit(NFS_O_RDWR_STATE, &state->flags);
>         is_rdonly = test_bit(NFS_O_RDONLY_STATE, &state->flags);
>         is_wronly = test_bit(NFS_O_WRONLY_STATE, &state->flags);
> -       nfs4_stateid_copy(&calldata->arg.stateid, &state->stateid);
> +       nfs4_stateid_copy(&calldata->arg.stateid, &state->open_stateid);
>         /* Calculate the change in open mode */
>         calldata->arg.fmode = 0;
>         if (state->n_rdwr == 0) {

Can you please also fix up nfs4_close_done().

Thanks!
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Patch

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a211daf..7b409ff 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2691,7 +2691,7 @@  static void nfs4_close_prepare(struct rpc_task *task, void *data)
 	is_rdwr = test_bit(NFS_O_RDWR_STATE, &state->flags);
 	is_rdonly = test_bit(NFS_O_RDONLY_STATE, &state->flags);
 	is_wronly = test_bit(NFS_O_WRONLY_STATE, &state->flags);
-	nfs4_stateid_copy(&calldata->arg.stateid, &state->stateid);
+	nfs4_stateid_copy(&calldata->arg.stateid, &state->open_stateid);
 	/* Calculate the change in open mode */
 	calldata->arg.fmode = 0;
 	if (state->n_rdwr == 0) {