linux-kernel - Re: [PATCH 17/17] RCU'd vfsmounts

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Date:	Fri, 4 Oct 2013 10:37:29 +0200
From:	Christoph Hellwig <hch@....de>
To:	Al Viro <viro@...IV.linux.org.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-fsdevel <linux-fsdevel@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Christoph Hellwig <hch@....de>
Subject: Re: [PATCH 17/17] RCU'd vfsmounts

On Fri, Oct 04, 2013 at 03:53:51AM +0100, Al Viro wrote:
> Speaking of those two - I really want to see file_table.c one killed.
> Christoph, do you have anything along the lines of getting rid of the
> mark_files_ro() nonsense?  After all, a combination of r/w vfsmount
> and a superblock with MS_RDONLY in flags should do about the right thing
> these days...  I can probably knock something together tomorrow, but
> you've brought that thing up quite a few times, so if you happen to have
> a patch more or less ready...

I used to have a patch for it that was also sent to the list long ago,
but it got rid of the sysrq emergency remount r/o, which people didn't like.
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