From owner-freebsd-current Sun Aug 27 1:25: 3 2000
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(envelope-from phk@critter.freebsd.dk)
To: Boris Popov <bp@butya.kz>
Cc: current@freebsd.org
Subject: Re: PATCH: devfs mkIII test & review please.
In-Reply-To: Your message of "Sun, 27 Aug 2000 07:12:25 +0700."
<Pine.BSF.4.10.10008270708410.608-100000@lion.butya.kz>
Date: Sun, 27 Aug 2000 10:24:54 +0200
Message-ID: <1226.967364694@critter>
From: Poul-Henning Kamp <phk@critter.freebsd.dk>
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In message <Pine.BSF.4.10.10008270708410.608-100000@lion.butya.kz>, Boris Popov
writes:
>On Fri, 18 Aug 2000, Poul-Henning Kamp wrote:
>
>> Missing:
>> Rename
>> Subdirs.
>> Close some race conditions using guaranteed atomic operations.
>> Mountoption (ro ?) to prevent new devices from appearing in an instance.
>> All uses of cdevsw_add() needs to be use devfs_clone() instead.
>
> How should 3rd party KLDs implement cloning function ? For now it
>seems to be impossible to use a single binary for DEVFS and non-DEVFS
>case.
Once the code has been shaken out, the cloning stuff will be standard.
Right now I prefer to keep as much as possible under #ifdef DEVFS.
See kern/vfs_conf.c for another good reason (besides KLD) to make
the cloning stuff standard.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD coreteam member | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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