Re: [PATCH v6 12/29] NFSv4.1: Allow revoked stateids to skip the call to TEST_STATEID

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Subject: Re: [PATCH v6 12/29] NFSv4.1: Allow revoked stateids to skip the call to TEST_STATEID
From: Trond Myklebust <trondmy@xxxxxxxxxxxxxxx>
Date: Wed, 21 Sep 2016 16:39:23 +0000
Accept-language: en-US
Cc: Trond Myklebust <trondmy@xxxxxxxxxxxxxxx>, List Linux NFS Mailing <linux-nfs@xxxxxxxxxxxxxxx>, Oleg Drokin <green@xxxxxxxxxxxxxx>
In-reply-to: <ad05aaa3-ac5d-eda2-9218-942423d43a0b@Netapp.com>
References: <1474390571-17106-1-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-2-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-3-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-4-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-5-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-6-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-7-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-8-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-9-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-10-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-11-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-12-git-send-email-trond.myklebust@primarydata.com> <1474390571-17106-13-git-send-email-trond.myklebust@primarydata.com> <ad05aaa3-ac5d-eda2-9218-942423d43a0b@Netapp.com>

> On Sep 21, 2016, at 12:03, Anna Schumaker <Anna.Schumaker@xxxxxxxxxx> wrote:
> 
> Hi Trond,
> 
> On 09/20/2016 12:55 PM, Trond Myklebust wrote:
>> In some cases (e.g. when the SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED sequence
>> flag is set) we may already know that the stateid was revoked and that the
>> only valid operation we can call is FREE_STATEID. In those cases, allow
>> the stateid to carry the information in the type field, so that we skip
>> the redundant call to TEST_STATEID.
> 
> Would you like to add a Signed-off-by to this patch? :)

Umm…. Yes… Sorry...

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References:
- [PATCH v6 00/29] Fix delegation behaviour when server revokes some state
  - From: Trond Myklebust
- [PATCH v6 01/29] NFSv4.1: Don't deadlock the state manager on the SEQUENCE status flags
  - From: Trond Myklebust
- [PATCH v6 02/29] NFS: Fix inode corruption in nfs_prime_dcache()
  - From: Trond Myklebust
- [PATCH v6 03/29] NFSv4: Don't report revoked delegations as valid in nfs_have_delegation()
  - From: Trond Myklebust
- [PATCH v6 04/29] NFSv4: nfs4_copy_delegation_stateid() must fail if the delegation is invalid
  - From: Trond Myklebust
- [PATCH v6 05/29] NFSv4.1: Don't check delegations that are already marked as revoked
  - From: Trond Myklebust
- [PATCH v6 06/29] NFSv4.1: Allow test_stateid to handle session errors without waiting
  - From: Trond Myklebust
- [PATCH v6 07/29] NFSv4.1: Add a helper function to deal with expired stateids
  - From: Trond Myklebust
- [PATCH v6 08/29] NFSv4.x: Allow callers of nfs_remove_bad_delegation() to specify a stateid
  - From: Trond Myklebust
- [PATCH v6 09/29] NFSv4.1: Test delegation stateids when server declares "some state revoked"
  - From: Trond Myklebust
- [PATCH v6 10/29] NFSv4.1: Deal with server reboots during delegation expiration recovery
  - From: Trond Myklebust
- [PATCH v6 11/29] NFSv4.1: Don't recheck delegations that have already been checked
  - From: Trond Myklebust
- [PATCH v6 12/29] NFSv4.1: Allow revoked stateids to skip the call to TEST_STATEID
  - From: Trond Myklebust
- Re: [PATCH v6 12/29] NFSv4.1: Allow revoked stateids to skip the call to TEST_STATEID
  - From: Anna Schumaker

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