From: greg@kroah.com (Greg KH)
To: kernelnewbies@lists.kernelnewbies.org
Subject: read / write / close sync for device files
Date: Tue, 5 Jul 2011 06:34:40 -0700 [thread overview]
Message-ID: <20110705133440.GA8261@kroah.com> (raw)
In-Reply-To: <BANLkTikgFno9C-LJnu1SQ+Kg6pGoLQNeCg@mail.gmail.com>
On Tue, Jul 05, 2011 at 12:37:26PM +0530, Amit Nagal wrote:
> so do the usb-core layers or VFS layers maintains some locks that take
> care that if read / write is in progress
> and application calls close() , corresponding release() method in usb
> driver will be called only upon completion
> of all read / writes ?
No, release will be called when all of the userspace file handles call
close(), and not before.
hope this helps,
greg k-h
prev parent reply other threads:[~2011-07-05 13:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-04 12:43 read / write / close sync for device files Amit Nagal
2011-07-04 16:10 ` Greg KH
2011-07-05 7:07 ` Amit Nagal
2011-07-05 13:34 ` Greg KH [this message]
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