Re: [PATCH v3 03/10] rpc_pipefs: call fsnotify_{unlink,rmdir}() hooks

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On Mon, May 27, 2019 at 1:54 PM Jan Kara <jack@xxxxxxx> wrote:
>
> On Sun 26-05-19 17:34:04, Amir Goldstein wrote:
> > This will allow generating fsnotify delete events after the
> > fsnotify_nameremove() hook is removed from d_delete().
> >
> > Cc: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
> > Cc: Anna Schumaker <anna.schumaker@xxxxxxxxxx>
> > Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
> > ---
> >  net/sunrpc/rpc_pipe.c | 4 ++++
> >  1 file changed, 4 insertions(+)
>
> Hum, I don't think all __rpc_depopulate() calls are guarded by i_rwsem
> (e.g. those in rpc_gssd_dummy_populate()). Why aren't we using
> rpc_depopulate() in those cases? Trond, Anna?
>

Do we care? For fsnotify hook, we should only care that
d_parent/d_name are stable.
They are stable because rpc_pipefs has no rename.

Thanks,
Amir.



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