Re: [PATCH v8 02/19] fsnotify: opt-in for permission events at file open time

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On Thu, Nov 21, 2024 at 11:09 AM Christian Brauner <brauner@xxxxxxxxxx> wrote:
>
> > It is not that I object to "two bit constants". FMODE_FSNOTIFY_MASK is a
> > two-bit constant and a good one. But the name clearly suggests it is not a
> > single bit constant. When you have all FMODE_FOO and FMODE_BAR things
> > single bit except for FMODE_BAZ which is multi-bit, then this is IMHO a
> > recipe for problems and I rather prefer explicitely spelling the
> > combination out as FMODE_NONOTIFY | FMODE_NONOTIFY_PERM in the few places
> > that need this instead of hiding it behind some other name.
>
> Very much agreed!

Yes, I agree as well.
What I meant is that the code that does
    return FMODE_NONOTIFY | FMODE_NONOTIFY_PERM;

is going to be unclear to the future code reviewer unless there is
a comment above explaining that this is a special flag combination
to specify "suppress only pre-content events".

Thanks,
Amir.





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