From mboxrd@z Thu Jan  1 00:00:00 1970
From: Artem Bityutskiy <dedekind1@gmail.com>
Subject: Re: [PATCH] Syscalls: reboot: Add options to the reboot syscall to
 remount filesystems ro
Date: Fri, 04 Mar 2011 08:55:23 +0200
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Cc: Mark Lord <kernel@teksavvy.com>,
	Ken Sumrall <ksumrall@android.com>,
	linux-kernel@vger.kernel.org,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Christoph Hellwig <hch@lst.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Jan Kara <jack@suse.cz>, Jens Axboe <axboe@kernel.dk>,
	Matthew Wilcox <matthew@wil.cx>,
	Eric Paris <eparis@redhat.com>,
	Dave Young <hidave.darkstar@gmail.com>,
	Jiri Slaby <jslaby@suse.cz>, James Morris <jmorris@namei.org>,
	linux-fsdevel@vger.kernel.org
To: Linus Torvalds <torvalds@linux-foundation.org>
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On Thu, 2011-03-03 at 15:36 -0800, Linus Torvalds wrote:
> But you're certainly right that it takes less code to open
> /proc/sysrq-trigger and writing a single byte to it than it does to d=
o
> the straightforward "let's just do the normal mount thing".

/proc/sysrq-trigger is sometimes simply disabled for "security reasons"=
=2E
I'm not sure about Android, but some systems I know do disable it. So I
think /proc/mounts is a cleaner approach.

--=20
Best Regards,
Artem Bityutskiy (=D0=90=D1=80=D1=82=D1=91=D0=BC =D0=91=D0=B8=D1=82=D1=8E=
=D1=86=D0=BA=D0=B8=D0=B9)