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From: Arnd Bergmann <arnd@arndb.de>
To: "C. Scott Ananian" <cscott@laptop.org>
Subject: Re: inotify and /proc?
Date: Fri, 22 Jun 2007 01:17:09 +0200
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On Thursday 21 June 2007, C. Scott Ananian wrote:
> 
> I'd like to make a read-only /proc file which supports inotify -- that
> is, the kernel can send change notifications to userland via the
> inotify mechanism. ?I've found fsnotify_modify() (in
> include/linux/fsnotify.h) which seems to do what I want, but it takes
> a struct dentry * -- how can I get a dentry from a struct
> proc_dir_entry and increment its ref count to keep it around? ?Any
> help would be appreciated. ?Thanks!

It sounds a little fishy to want that in the first place. If we wanted
inotify on /proc, it should work on all files I guess, but that's
an immense amount of work.

What file are you talking about in particular?
Why does it have to be in /proc?
Why not use another notification mechanism -- blocking read(), poll(),
uevent, ...?

	Arnd <><
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