Re: [PATCH 3/3] fsnotify: use the new open-exec hook for inotify and dnotify

From: KOSAKI Motohiro
Date: Mon Dec 15 2008 - 21:01:58 EST


> > they are two different.
> >
> > 1) Call dnotify_parent() or not
> > 2) Use IN_OPEN or IN_ACCESS
> >
> > The patch description doesn't explain any reason.
> >
> >
> > IOW, IN_ACCESS is usually used by read(). but linux has demand paging
> > mechanism. then exec() only do open and mmap.
> > actual reading is processed by page fault.
> >
> > I guess you have the reason of this design choice.
> > but it isn't described.
>
> The original logic was all predicated on my thoughts on how my new
> fanotify would want these events and how I felt that open for exec was
> worth the separate hook. None of that is useful at this time and in any
> case IN_OPEN makes a lot more sense than IN_ACCESS. Since you've got me
> looking at these as freestanding patchs I do tend to think that the
> easiest thing for now would be to just drop patch 2 and make the call
> sites from patch 2 call fsnotify_open directly.

it seems make sense. thanks.


> I'll resend in the morning a single patch to call directly to
> fsnotify_open. (and another single patch to immediately do the rename
> that I want done which I'll send as the full normal diff since it'll be
> freestanding)

you don't need full normal diff. last comment was my mistake. sorry.
I only hope patch separation.




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