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SubjectRe: [PATCH v2 4/5] NFS: remove RPC PipeFS mount point reference from blocklayout routines
11.01.2012 22:36, Trond Myklebust пишет:
> On Wed, 2012-01-11 at 13:33 -0500, Trond Myklebust wrote:
>> On Tue, 2012-01-10 at 17:04 +0400, Stanislav Kinsbursky wrote:
>>> This is a cleanup patch. We don't need this reference anymore, because
>>> blocklayout pipes dentries now creates and destroys in per-net operations and
>>> on PipeFS mount/umount notification.
>>> Note that nfs4blocklayout_register_net() now returns 0 instead of -ENOENT in
>>> case of PipeFS superblock absence. This is ok, because blocklayout pipe dentry
>>> will be created on PipeFS mount event.
>>>
>>> Signed-off-by: Stanislav Kinsbursky<skinsbursky@parallels.com>
>>>
>>> ---
>>> fs/nfs/blocklayout/blocklayout.c | 9 +--------
>>> 1 files changed, 1 insertions(+), 8 deletions(-)
>>>
>>> diff --git a/fs/nfs/blocklayout/blocklayout.c b/fs/nfs/blocklayout/blocklayout.c
>>> index 322d920..2c70202 100644
>>> --- a/fs/nfs/blocklayout/blocklayout.c
>>> +++ b/fs/nfs/blocklayout/blocklayout.c
>>> @@ -1034,7 +1034,7 @@ static struct dentry *nfs4blocklayout_register_net(struct net *net,
>>>
>>> pipefs_sb = rpc_get_sb_net(net);
>>> if (!pipefs_sb)
>>> - return ERR_PTR(-ENOENT);
>>> + return 0;
>>
>> This looks like a typo of some sort. The caller in
>> nfs4blocklayout_net_init() checks for IS_ERR(), not NULL. I'll just
>> remove this hunk...
>
> Never mind. I see what's going on now... It should be NULL, and not 0
> for coding style reasons, though...
>

Yep, NULL of course, sorry.

--
Best regards,
Stanislav Kinsbursky
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