Messages in this thread | | | Date | Sat, 3 Sep 2022 01:06:00 +0100 | From | Al Viro <> | Subject | Re: [PATCH 01/10] VFS: support parallel updates in the one directory. |
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On Mon, Aug 29, 2022 at 11:59:02AM +1000, NeilBrown wrote:
> > When would we get out of __lookup_hash() with in-lookup dentry? > > Confused... > > Whenever wq is passed in and ->lookup() decides, based on the flags, to do > nothing. > NFS does this for LOOKUP_CREATE|LOOKUP_EXCL and for LOOKUP_RENAME_TARGET
Frankly, I would rather do what all other callers of ->lookup() do and just follow it with d_lookup_done(dentry), no matter what it returns. It's cheap enough...
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