From: Russell King <rmk@arm.linux.org.uk>
To: Remco Treffkorn <remco@rvt.com>
Cc: "David S. Miller" <davem@redhat.com>,
dan@embeddededge.com, benh@kernel.crashing.org,
trini@kernel.crashing.org, linux-kernel@vger.kernel.org,
linuxppc-dev@lists.linuxppc.org
Subject: Re: 3 Serial issues up for discussion
Date: Tue, 30 Jul 2002 19:51:16 +0100 [thread overview]
Message-ID: <20020730195116.E7677@flint.arm.linux.org.uk> (raw)
In-Reply-To: <200207301123.48322.remco@rvt.com>; from remco@rvt.com on Tue, Jul 30, 2002 at 11:23:47AM -0700
On Tue, Jul 30, 2002 at 11:23:47AM -0700, Remco Treffkorn wrote:
> The given solution presents almost zero overhead, but has the mentioned
> problem. There is a way to allocate and free minor numbers, but that requires
> storage. It could be handled like the fd_set's select uses. Just a bit field.
> Bit cleared == minor available, bit set == in use.
core.c already knows which "slots" are in use and which aren't, so
allocation and freeing of minor numbers isn't that much of a problem.
The sole purpose behind this is to solicit is peoples opinions and
ideas on those three points I've raised.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
next prev parent reply other threads:[~2002-07-30 18:47 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-29 4:08 Serial core problems on embedded PPC David Gibson
2002-07-29 9:00 ` Russell King
2002-07-29 14:44 ` Tom Rini
2002-07-29 17:17 ` 3 Serial issues up for discussion (was: Re: Serial core problems on embedded PPC) Russell King
2002-07-29 17:43 ` Tom Rini
2002-07-29 18:13 ` Benjamin Herrenschmidt
2002-07-29 19:07 ` Tom Rini
2002-07-29 19:09 ` 3 Serial issues up for discussion (was: " Dan Malek
2002-07-29 19:46 ` Remco Treffkorn
2002-07-29 20:18 ` Russell King
2002-07-30 2:54 ` 3 Serial issues up for discussion David S. Miller
2002-07-30 18:23 ` Remco Treffkorn
2002-07-30 18:47 ` Nicolas Pitre
2002-07-30 18:51 ` Russell King [this message]
2002-07-30 18:44 ` Nicolas Pitre
2002-07-29 18:15 ` 3 Serial issues up for discussion (was: Re: Serial core problems on embedded PPC) Matt Porter
2002-07-29 17:47 ` [parisc-linux] " Christoph Plattner
2002-07-29 22:19 ` Matthew Wilcox
2002-07-30 14:36 ` Stuart MacDonald
2002-07-30 15:19 ` Matthew Wilcox
2002-07-30 15:43 ` Stuart MacDonald
2002-07-30 15:53 ` Russell King
2002-07-30 15:59 ` Greg KH
2002-07-30 16:06 ` Stuart MacDonald
2002-08-02 1:57 ` Jeff Randall
2002-07-30 2:51 ` 3 Serial issues up for discussion David S. Miller
2002-07-30 1:12 ` Serial core problems on embedded PPC David Gibson
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