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Date: Mon, 30 Dec 2002 10:57:15 +0000
To: lvm-devel@sistina.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: [lvm-devel] [PATCH] add kobject to struct mapped_device
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From: Joe Thornber <joe@fib011235813.fsnet.co.uk>
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On Fri, Dec 20, 2002 at 09:49:52AM -0800, Greg KH wrote:
> I saw that logic.  I don't think sysfs can handle poll right now, but we
> could modify the last access/modify/change time when the status changes
> so stat(2) can be used on the file.  This is how usbfs currently
> notifies userspace of changes to their files.  Would this be acceptable?

Blech.  The nice thing about a blocking operation like poll is that
the process doesn't keep getting rescheduled to check if there is
anything to do.

- Joe
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