NFSv4.0 does not have TEST_STATEID/FREE_STATEID functionality, so
unlike NFSv4.1, the recovery procedure when stateids have expired
requires us to just forget the delegation.
http://lkml.kernel.org/r/CAN-5tyHwG=Cn2Q9KsHWadewjpTTy_K26ee+UnSvHvG4192p-Xw@mail.gmail.com
Cc: [email protected]
Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/nfs4proc.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 405bd95c1f58..d8f352d8c75f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2109,6 +2109,14 @@ static int nfs4_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *sta
return ret;
}
+static int nfs40_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *state)
+{
+ /* NFSv4.0 doesn't allow for delegation recovery on open expire */
+ if (test_bit(NFS_DELEGATED_STATE, &state->flags))
+ nfs_remove_bad_delegation(state->inode);
+ return nfs4_open_expired(sp, state);
+}
+
#if defined(CONFIG_NFS_V4_1)
static void nfs41_clear_delegation_stateid(struct nfs4_state *state)
{
@@ -8341,7 +8349,7 @@ static const struct nfs4_state_recovery_ops nfs41_reboot_recovery_ops = {
static const struct nfs4_state_recovery_ops nfs40_nograce_recovery_ops = {
.owner_flag_bit = NFS_OWNER_RECLAIM_NOGRACE,
.state_flag_bit = NFS_STATE_RECLAIM_NOGRACE,
- .recover_open = nfs4_open_expired,
+ .recover_open = nfs40_open_expired,
.recover_lock = nfs4_lock_expired,
.establish_clid = nfs4_init_clientid,
};
--
1.9.3
NFSv4.x (x>0) requires us to call TEST_STATEID+FREE_STATEID if a stateid is
revoked. We will currently fail to do this if the stateid is a delegation.
http://lkml.kernel.org/r/CAN-5tyHwG=Cn2Q9KsHWadewjpTTy_K26ee+UnSvHvG4192p-Xw@mail.gmail.com
Cc: [email protected]
Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/nfs4proc.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d8f352d8c75f..6cf49af3092d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -370,11 +370,6 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
- if (inode != NULL && nfs4_have_delegation(inode, FMODE_READ)) {
- nfs_remove_bad_delegation(inode);
- exception->retry = 1;
- break;
- }
if (state == NULL)
break;
ret = nfs4_schedule_stateid_recovery(server, state);
@@ -4849,9 +4844,6 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
case -NFS4ERR_DELEG_REVOKED:
case -NFS4ERR_ADMIN_REVOKED:
case -NFS4ERR_BAD_STATEID:
- if (state == NULL)
- break;
- nfs_remove_bad_delegation(state->inode);
case -NFS4ERR_OPENMODE:
if (state == NULL)
break;
--
1.9.3
If state recovery failed, then we should not attempt to reclaim delegated
state.
http://lkml.kernel.org/r/CAN-5tyHwG=Cn2Q9KsHWadewjpTTy_K26ee+UnSvHvG4192p-Xw@mail.gmail.com
Cc: [email protected]
Signed-off-by: Trond Myklebust <[email protected]>
---
fs/nfs/delegation.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c
index 5853f53db732..4904a1dba937 100644
--- a/fs/nfs/delegation.c
+++ b/fs/nfs/delegation.c
@@ -125,6 +125,8 @@ again:
continue;
if (!test_bit(NFS_DELEGATED_STATE, &state->flags))
continue;
+ if (!nfs4_valid_open_stateid(state))
+ continue;
if (!nfs4_stateid_match(&state->stateid, stateid))
continue;
get_nfs_open_context(ctx);
--
1.9.3
On Wed, Nov 5, 2014 at 9:49 AM, Anna Schumaker
<[email protected]> wrote:
> Hey Trond,
>
> On 11/04/2014 06:36 PM, Trond Myklebust wrote:
>> NFSv4.x (x>0) requires us to call TEST_STATEID+FREE_STATEID if a stateid is
>> revoked. We will currently fail to do this if the stateid is a delegation.
>>
>> http://lkml.kernel.org/r/CAN-5tyHwG=Cn2Q9KsHWadewjpTTy_K26ee+UnSvHvG4192p-Xw@mail.gmail.com
>> Cc: [email protected]
>> Signed-off-by: Trond Myklebust <[email protected]>
>> ---
>> fs/nfs/nfs4proc.c | 8 --------
>> 1 file changed, 8 deletions(-)
>>
>> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
>> index d8f352d8c75f..6cf49af3092d 100644
>> --- a/fs/nfs/nfs4proc.c
>> +++ b/fs/nfs/nfs4proc.c
>> @@ -370,11 +370,6 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
>> case -NFS4ERR_DELEG_REVOKED:
>> case -NFS4ERR_ADMIN_REVOKED:
>> case -NFS4ERR_BAD_STATEID:
>> - if (inode != NULL && nfs4_have_delegation(inode, FMODE_READ)) {
>> - nfs_remove_bad_delegation(inode);
>> - exception->retry = 1;
>> - break;
>> - }
>> if (state == NULL)
>> break;
>> ret = nfs4_schedule_stateid_recovery(server, state);
>> @@ -4849,9 +4844,6 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
>> case -NFS4ERR_DELEG_REVOKED:
>> case -NFS4ERR_ADMIN_REVOKED:
>> case -NFS4ERR_BAD_STATEID:
>> - if (state == NULL)
>> - break;
>> - nfs_remove_bad_delegation(state->inode);
>
> Does filelayout_async_handle_error() need to be updated in the same way? They are the only remaining caller of nfs_remove_bad_delegation().
>
Oops. Yes, that would be correct.
--
Trond Myklebust
Linux NFS client maintainer, PrimaryData
[email protected]
Hey Trond,
On 11/04/2014 06:36 PM, Trond Myklebust wrote:
> NFSv4.x (x>0) requires us to call TEST_STATEID+FREE_STATEID if a stateid is
> revoked. We will currently fail to do this if the stateid is a delegation.
>
> http://lkml.kernel.org/r/CAN-5tyHwG=Cn2Q9KsHWadewjpTTy_K26ee+UnSvHvG4192p-Xw@mail.gmail.com
> Cc: [email protected]
> Signed-off-by: Trond Myklebust <[email protected]>
> ---
> fs/nfs/nfs4proc.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
> index d8f352d8c75f..6cf49af3092d 100644
> --- a/fs/nfs/nfs4proc.c
> +++ b/fs/nfs/nfs4proc.c
> @@ -370,11 +370,6 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
> case -NFS4ERR_DELEG_REVOKED:
> case -NFS4ERR_ADMIN_REVOKED:
> case -NFS4ERR_BAD_STATEID:
> - if (inode != NULL && nfs4_have_delegation(inode, FMODE_READ)) {
> - nfs_remove_bad_delegation(inode);
> - exception->retry = 1;
> - break;
> - }
> if (state == NULL)
> break;
> ret = nfs4_schedule_stateid_recovery(server, state);
> @@ -4849,9 +4844,6 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
> case -NFS4ERR_DELEG_REVOKED:
> case -NFS4ERR_ADMIN_REVOKED:
> case -NFS4ERR_BAD_STATEID:
> - if (state == NULL)
> - break;
> - nfs_remove_bad_delegation(state->inode);
Does filelayout_async_handle_error() need to be updated in the same way? They are the only remaining caller of nfs_remove_bad_delegation().
Thanks,
Anna
> case -NFS4ERR_OPENMODE:
> if (state == NULL)
> break;