From: "Chris Worley" <worleys@gmail.com>
To: linux-fsdevel@vger.kernel.org, dwmw2@infradead.org
Subject: What's the "prepare_discard_fn" supposed to do?
Date: Thu, 2 Oct 2008 07:45:21 -0600 [thread overview]
Message-ID: <f3177b9e0810020645x66fdc70aicd44cdeb69b2fb77@mail.gmail.com> (raw)
In perusing the "discard-2.6" kernel at infradead.org (great job... I
have a device I'm testing it on, and it's working), I'm unclear on
what I'm supposed to do in the prepare_discard_fn function.
It looks like, if it exists, the the discard bio gets passed to the
normal handler. Otherwise, it seems to have no duties. I'm guessing
it's for whatever initialization is needed for the device... but
checking to be sure.
Thanks,
Chris
next reply other threads:[~2008-10-02 13:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-02 13:45 Chris Worley [this message]
2008-10-02 13:52 ` What's the "prepare_discard_fn" supposed to do? David Woodhouse
2008-10-03 6:48 ` Artem Bityutskiy
2008-10-03 6:53 ` David Woodhouse
2008-10-10 12:58 ` Matthew Wilcox
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