Home » Mailing lists » Devel » [PATCH 0/5] NFS: create blocklayout pipe per network namesapce context
| Re: [PATCH 0/5] NFS: create blocklayout pipe per network namesapce context [message #44875 is a reply to message #44808] |
Tue, 10 January 2012 12:58   |
Stanislav Kinsbursky
Messages: 683
Registered: October 2011
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Senior Member |
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06.01.2012 00:58, Trond Myklebust пишет:
> On Fri, 2011-12-30 at 17:55 -0500, Trond Myklebust wrote:
>> On Tue, 2011-11-29 at 13:10 +0300, Stanislav Kinsbursky wrote:
>>> This patch set was created in context of clone of git
>>> branch: git://git.linux-nfs.org/projects/trondmy/nfs-2.6.git.
>>> tag: v3.1
>>>
>>> This patch set depends on previous patch sets titled:
>>> 1) "SUNRPC: initial part of making pipefs work in net ns"
>>> 2) "SUNPRC: cleanup PipeFS for network-namespace-aware users"
>>> 3) "SUNRPC: make RPC clients use network-namespace-aware PipeFS routines"
>>> 4) "NFS: create clients and IDMAP pipes per network namespace"
>>>
>>> This patch set is the final part of making SUNRPC PipeFS and it's users work in
>>> network namespace context.
>>>
>>> The following series consists of:
>>>
>>> ---
>>>
>>> Stanislav Kinsbursky (5):
>>> NFS: handle blocklayout pipe PipeFS dentry by network namespace aware routines
>>> NFS: blocklayout pipe creation per network namespace context introduced
>>> NFS: blocklayout PipeFS notifier introduced
>>> NFS: remove RPC PipeFS mount point reference from blocklayout routines
>>> SUNRPC: kernel PipeFS mount point creation routines removed
>>>
>>>
>>> fs/nfs/blocklayout/blocklayout.c | 154 ++++++++++++++++++++++++++++-------
>>> fs/nfs/blocklayout/blocklayout.h | 3 -
>>> fs/nfs/blocklayout/blocklayoutdev.c | 5 +
>>> fs/nfs/blocklayout/blocklayoutdm.c | 7 +-
>>> fs/nfs/inode.c | 1
>>> fs/nfs/netns.h | 1
>>> include/linux/sunrpc/rpc_pipe_fs.h | 2
>>> net/sunrpc/rpc_pipe.c | 21 -----
>>> 8 files changed, 137 insertions(+), 57 deletions(-)
>>
>>
>> These patches need rebasing in order to apply on top of 3.2-rc7...
>
> OK. Further testing seems to indicate that we're going to have to
> postpone merging these patches until the 3.4 merge window.
>
> The problems are twofold:
>
> As the patches stand now in the linux-next tree, they can (and
> occasionally do) Oops on unmount. The reason was that I rejected the
> PipeFS notifier patch for the idmapper (due to the reported problem of
> nfs_idmap_init/nfs_idmap_quit being undefined when CONFIG_NFS_V4 is
> undefined), and the fact that it is missing causes the unmount at the
> end of our tests to hit the BUG() in fs/dcache.c:905. This suggests that
> we will have the same problem with the pNFS block layout driver, since I
> still haven't received a rebased update of the 5 'create blocklayout
> pipe per network namesapce context' patches.
>
Hello, Trond.
I've resend the patch set (rebased with fix for nfs_idmap_init/nfs_idmap_quit).
> The second problem that was highlighted was the fact that as they stand
> today, these patchsets do not allow for bisection. When we hit the Oops,
> I had Bryan try to bisect where the problem arose. He ended up pointing
> at the patch "SUNRPC: handle RPC client pipefs dentries by network
> namespace aware routine", which is indeed the cause, but which is one of
> the _dependencies_ for all the PipeFS notifier patches that fix the
> problem.
>
I'm confused here. Does this means, that I have to fix patch "SUNRPC: handle RPC
client pipefs dentries by network namespace aware routine" to make it able to
bisect?
--
Best regards,
Stanislav Kinsbursky
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