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SubjectRe: [lkp] [nfsd] b44061d0b9: BUG: Dentry ffff880027d7c540{i=1846f,n=0a} still in use (1) [unmount of btrfs vda]
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On 08/10/2016 02:25 PM, Linus Torvalds wrote:
> On Wed, Aug 10, 2016 at 11:22 AM, Josef Bacik <jbacik@fb.com> wrote:
>> On 08/10/2016 02:06 PM, Linus Torvalds wrote:
>>>
>>> More information in the original email on lkml.
>>
>> I'm not subscribed to lkml and for some reason I can't find the original
>> email in any of the lkml/linux-nfs archives. Could you forward more of the
>> details?
>
> Done.
>

Looks like an NFS problem. Before in the !resfhp->fh_dentry case we would do a
lookup_one_len() and carry on. Now we do the lookup_one_len(), call into
nfsd_create_locked() and do a dget on resfhp->f_dentry, which from looks of it
is the dentry we just did a lookup_one_len() on, so we have one more ref on the
dentry than we did previously. Thanks,

Josef

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