From: "Stephen C. Tweedie" <sct@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: Stephen Tweedie <sct@redhat.com>, Robert Read <rread@datarithm.net>
Subject: Re: [patch] set kiobuf io_count once, instead of increment
Date: Fri, 2 Mar 2001 18:43:08 +0000 [thread overview]
Message-ID: <20010302184308.Z28854@redhat.com> (raw)
In-Reply-To: <20010227162222.A6389@tenchi.datarithm.net>
In-Reply-To: <20010227162222.A6389@tenchi.datarithm.net>; from rread@datarithm.net on Tue, Feb 27, 2001 at 04:22:22PM -0800
On Tue, Feb 27, 2001 at 04:22:22PM -0800, Robert Read wrote:
> Currently in brw_kiovec, iobuf->io_count is being incremented as each
> bh is submitted, and decremented in the bh->b_end_io(). This means
> io_count can go to zero before all the bhs have been submitted,
> especially during a large request. This causes the end_kio_request()
> to be called before all of the io is complete.
brw_kiovec is currently entirely synchronous, so end_kio_request()
calling is probably not a big deal right now. It would be much more
important for an async version.
--Stephen
prev parent reply other threads:[~2001-03-02 18:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-02-28 0:22 [patch] set kiobuf io_count once, instead of increment Robert Read
2001-02-28 1:50 ` Marcelo Tosatti
2001-02-28 17:18 ` Robert Read
2001-03-02 18:46 ` Stephen C. Tweedie
2001-03-02 18:43 ` Stephen C. Tweedie [this message]
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