Date: Wed, 15 Dec 2004 11:56:57 +0100 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Ruslan Ermilov <ru@FreeBSD.org> Cc: current@FreeBSD.org Subject: Re: Background fsck is broken Message-ID: <43754.1103108217@critter.freebsd.dk> In-Reply-To: Your message of "Wed, 15 Dec 2004 12:53:27 %2B0200." <20041215105326.GO25967@ip.net.ua>
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In message <20041215105326.GO25967@ip.net.ua>, Ruslan Ermilov writes: >Are you saying it's not possible to downgrade the open to >(r=1, w=0, e=0) when a file system is downgraded from R/W to R/O? Yes: that would make a read-only mounted filesystem vulnerable to overwriting through the /dev entry and we don't want that. The problem is that we do not in the kernel know if we are in single user mode or not. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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