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Subject: Re: fcntl(F_GETLEASE) semantics??
From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Heikki Orsila <shd@modeemi.cs.tut.fi>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Peter Chubb <peterc@gelato.unsw.edu.au>
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References: <20050811184144.GE31158@jolt.modeemi.cs.tut.fi>
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Date: Thu, 11 Aug 2005 14:56:59 -0400
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to den 11.08.2005 Klokka 21:41 (+0300) skreiv Heikki Orsila:
> Peter Chubb <peterc@gelato.unsw.edu.au> wrote:
> > if (fcntl(fd, F_SETLEASE, F_RDLCK) == -1)
> >     fail;
> 
> Is that something inotify can do? If so, then should F_SETLEASE/GETLEASE
> be deprecated for future? F_SETLEASE is Linux specific, and inotify is
> generally more useful. It looks like inotify could be used to detected 
> changes in any file.

inotify does not give you synchronous notification. It just tells you
something has happened after the fact. Not the same thing at all.

Cheers,
  Trond