From: Ian Campbell <ijc@hellion.org.uk>
To: Jamie Lokier <jamie@shareable.org>
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-cifs-client@lists.samba.org, "Asser Femø" <asser@diku.dk>
Subject: Re: dnotify/inotify and vfs questions
Date: Thu, 25 Aug 2005 13:40:18 +0100 [thread overview]
Message-ID: <1124973618.17190.9.camel@icampbell-debian> (raw)
In-Reply-To: <20050823152331.GA10486@mail.shareable.org>
On Tue, 2005-08-23 at 16:23 +0100, Jamie Lokier wrote:
> <receive some request>...
> if (any_dnotify_or_inotify_events_pending) {
> read_dnotify_or_inotify_events();
> if (any_events_related_to(file)) {
> store_in_userspace_stat_cache(file, stat(file));
> }
> }
> stat_info = lookup_userspace_stat_cache(file);
>
> Now that's a silly way to save one system call in the fast path by itself.
I'm not that familiar with inotify internals but doesn't
read_dnotify_or_inotify_events() or
any_dnotify_or_inotify_events_pending() involve a syscall?
Ian.
--
Ian Campbell
Current Noise: Primordial - The Coffin Ships
Today is the first day of the rest of the mess.
next prev parent reply other threads:[~2005-08-25 12:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-23 13:00 dnotify/inotify and vfs questions Asser Femø
2005-08-23 15:23 ` Jamie Lokier
2005-08-25 12:40 ` Ian Campbell [this message]
2005-08-25 14:57 ` Jamie Lokier
2005-08-25 15:07 ` Ian Campbell
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