From: "William A. (Andy) Adamson" <androsadamson@gmail.com>
To: Fred Isaman <iisaman@netapp.com>
Cc: bhalevy@panasas.com, linux-nfs@vger.kernel.org
Subject: Re: [PATCH 23/40] SQUASHME pnfs-submit wave3 new function for ds expired lease
Date: Mon, 7 Feb 2011 10:05:30 -0500 [thread overview]
Message-ID: <AANLkTinTKbWROXXAaf4PAVkBp4n9BAs461pXQu-zu6Lv@mail.gmail.com> (raw)
In-Reply-To: <AANLkTimACJomfqNY01+9W6_i-0S4y-hgg93mUMM-NcrZ@mail.gmail.com>
On Sun, Feb 6, 2011 at 2:41 PM, Fred Isaman <iisaman@netapp.com> wrote:
> On Sat, Feb 5, 2011 at 11:46 AM, William A. (Andy) Adamson
> <androsadamson@gmail.com> wrote:
>> On Fri, Feb 4, 2011 at 4:51 PM, Fred Isaman <iisaman@netapp.com> wrote:
>>> On Fri, Feb 4, 2011 at 4:33 PM, <andros@netapp.com> wrote:
>>>> From: Andy Adamson <andros@netapp.com>
>>>>
>>>> Signed-off-by: Andy Adamson <andros@netapp.com>
>>>> ---
>>>> áfs/nfs/nfs4proc.c | á 11 ++++++++---
>>>> á1 files changed, 8 insertions(+), 3 deletions(-)
>>>>
>>>> diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
>>>> index 9c50be7..fb22cbf 100644
>>>> --- a/fs/nfs/nfs4proc.c
>>>> +++ b/fs/nfs/nfs4proc.c
>>>> @@ -1574,7 +1574,7 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
>>>> á á á áreturn 0;
>>>> á}
>>>>
>>>> -int nfs4_recover_expired_lease(struct nfs_client *clp)
>>>> +static int nfs4_client_recover_expired_lease(struct nfs_client *clp)
>>>> á{
>>>> á á á áunsigned int loop;
>>>> á á á áint ret;
>>>> @@ -1593,6 +1593,11 @@ int nfs4_recover_expired_lease(struct nfs_client *clp)
>>>> á}
>>>> áEXPORT_SYMBOL(nfs4_recover_expired_lease);
>>>>
>>>> +static int nfs4_recover_expired_lease(struct nfs_server *server)
>>>> +{
>>>> + á á á return nfs4_client_recover_expired_lease(server->nfs_client);
>>>> +}
>>>> +
>>>
>>> Why are we doing this extra indirection?
>>
>> As Trond pointed out, it is a lot less intrusive to the existing code.
>>
>> -->Andy
>>
>
> I must be missing something. What I see is that you are changing the
> arguments to a function that is called exactly twice, and creating a
> totally unnecessary subfunction nfs4_client_recover_expired_lease.
> How is this less intrusive than just directly inlining
> nfs4_client_recover_expired_lease?
This patch reverts the change made in pnfs_submit: filelayout i/o
helpers which changed the argument from nfs_server to nfs_client.
which changed the two calls. That is more intrusive to what this patch
does which is to leave the two calls alone. Adding
nfs4_client_recover_expired_lease lets us call it with struct
nfs_client from the data server code without changing the existing
calls and is therefore less intrusive.
-->Andy
>
> Fred
>
next prev parent reply other threads:[~2011-02-07 15:05 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-04 21:33 [PATCH 0/40] Wave3: For pNFS team review, not for kernel submission andros
2011-02-04 21:33 ` [PATCH 01/40] pnfs-submit: wave3: lseg refcounting andros
2011-02-04 21:33 ` [PATCH 02/40] pnfs_submit: add data server session to nfs4_setup_sequence andros
2011-02-04 21:33 ` [PATCH 03/40] pnfs_submit: update nfs4_async_handle_error for data server andros
2011-02-04 21:33 ` [PATCH 04/40] pnfs_submit: update state renewal for data servers andros
2011-02-04 21:33 ` [PATCH 05/40] pnfs_submit: wave3 pageio-helpers andros
2011-02-04 21:33 ` [PATCH 06/40] pnfs_submit: wave3 associate layout segment with nfs_page andros
2011-02-04 21:33 ` [PATCH 07/40] pnfs_submit: filelayout policy operations andros
2011-02-04 21:33 ` [PATCH 08/40] pnfs_submit: filelayout i/o helpers andros
2011-02-04 21:33 ` [PATCH 09/40] pnfs_submit: wave3 generic read andros
2011-02-04 21:33 ` [PATCH 10/40] pnfs_submit: filelayout read andros
2011-02-04 21:33 ` [PATCH 11/40] pnfs_submit: increase NFS_MAX_FILE_IO_SIZE andros
2011-02-04 21:33 ` [PATCH 12/40] pnfs_submit: enforce requested DS only pNFS role andros
2011-02-04 21:33 ` [PATCH 13/40] REVERT pnfs_submit-add-data-server-session-to-nfs4_setup_s.patch andros
2011-02-04 21:33 ` [PATCH 14/40] REVERT: pnfs_submit: update nfs4_async_handle_error for data server andros
2011-02-04 21:33 ` [PATCH 15/40] REVERT pnfs_submit: increase NFS_MAX_FILE_IO_SIZE andros
2011-02-04 21:33 ` [PATCH 16/40] REVERT pnfs_submit: enforce requested DS only pNFS role andros
2011-02-04 21:33 ` [PATCH 17/40] SQUASHME pnfs-submit wave3 remove is_ds_only_session andros
2011-02-04 21:33 ` [PATCH 18/40] SQUASHME pnfs-submit: wave3 make pnfs_initiate_read static andros
2011-02-04 21:33 ` [PATCH 19/40] SQUASHME pnfs-submit wave3 filelayout read pagelist cleanup andros
2011-02-04 21:33 ` [PATCH 20/40] SQUASHME pnfs-submit wave3 remove nr_pages from read_pagelist andros
2011-02-04 21:33 ` [PATCH 21/40] SQUASHME pnfs-submit wave3 add comment to nfs4_fl_prepare_ds_fh andros
2011-02-04 21:33 ` [PATCH 22/40] SQUASHME pnfs-submit wave3 move BUG outside of switch andros
2011-02-04 21:33 ` [PATCH 23/40] SQUASHME pnfs-submit wave3 new function for ds expired lease andros
2011-02-04 21:33 ` [PATCH 24/40] NFS move nfs_client initialization into nfs_get_client andros
2011-02-04 21:33 ` [PATCH 25/40] pnfs-submit: wave3 refactor dataserver client setup andros
2011-02-04 21:33 ` [PATCH 26/40] pnfs-submit: wave3 refactor data server session initialization andros
2011-02-04 21:33 ` [PATCH 27/40] pnfs_submit: wave3 rename nfs4_pnfs_ds_create andros
2011-02-04 21:33 ` [PATCH 28/40] pnfs-submit: wave3 turn off pNFS on ds connection failure andros
2011-02-04 21:33 ` [PATCH 29/40] pnfs-submit: wave3 rewrite read lseg refcounting andros
2011-02-04 21:33 ` [PATCH 30/40] pnfs-submit: wave3 let LAYOUTGET distinguish between read and write calls andros
2011-02-04 21:33 ` [PATCH 31/40] pnfs_submit wave3 remove struct pnfs_fl_call_data andros
2011-02-04 21:33 ` [PATCH 32/40] pnfs_submit: wave3 get rid of pnfs_call_data andros
2011-02-04 21:33 ` [PATCH 33/40] pnfs-submit wave3 remove CONFIG_NFS_V4 and V4_1 from nfs_read_data andros
2011-02-04 21:33 ` [PATCH 34/40] pnfs-submit wave3 don't use nfs_read_prepare for DS andros
2011-02-04 21:33 ` [PATCH 35/40] pnfs_submit wave3 filelayout_read_prepare andros
2011-02-04 21:33 ` [PATCH 36/40] pnfs-submit wave3 filelayout read done andros
2011-02-04 21:33 ` [PATCH 37/40] pnfs-submit wave3 send zero stateid seqid on v4.1 i/o andros
2011-02-04 21:34 ` [PATCH 38/40] pnfs-submit wave3 new flag for state renewal check andros
2011-02-04 21:34 ` [PATCH 39/40] pnfs-submit wave3 new flag for lease time check andros
2011-02-04 21:34 ` [PATCH 40/40] pnfs-submit wave3 add MDS mount DS only check andros
2011-02-07 17:42 ` [PATCH 37/40] pnfs-submit wave3 send zero stateid seqid on v4.1 i/o Benny Halevy
2011-02-09 17:11 ` William A. (Andy) Adamson
2011-02-08 23:06 ` [PATCH 36/40] pnfs-submit wave3 filelayout read done Fred Isaman
2011-02-09 16:10 ` William A. (Andy) Adamson
2011-02-08 22:09 ` [PATCH 33/40] pnfs-submit wave3 remove CONFIG_NFS_V4 and V4_1 from nfs_read_data Fred Isaman
[not found] ` <AANLkTin_N0rFNr2KzxZ32bpWWUzwJQ4skLnZNVA=W6FQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-02-09 16:11 ` William A. (Andy) Adamson
2011-02-04 21:59 ` [PATCH 30/40] pnfs-submit: wave3 let LAYOUTGET distinguish between read and write calls Fred Isaman
2011-02-05 16:47 ` William A. (Andy) Adamson
2011-02-04 21:51 ` [PATCH 23/40] SQUASHME pnfs-submit wave3 new function for ds expired lease Fred Isaman
2011-02-05 16:46 ` William A. (Andy) Adamson
2011-02-06 19:41 ` Fred Isaman
2011-02-07 15:05 ` William A. (Andy) Adamson [this message]
2011-02-07 15:29 ` Fred Isaman
2011-02-04 21:44 ` [PATCH 19/40] SQUASHME pnfs-submit wave3 filelayout read pagelist cleanup Fred Isaman
2011-02-05 16:47 ` William A. (Andy) Adamson
2011-02-10 5:59 ` [PATCH 0/40] Wave3: For pNFS team review, not for kernel submission Benny Halevy
2011-02-10 14:17 ` William A. (Andy) Adamson
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