From: Artem Bityutskiy <dedekind1@gmail.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
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
Subject: Re: [PATCH] Syscalls: reboot: Add options to the reboot syscall to remount filesystems ro
Date: Fri, 04 Mar 2011 08:55:23 +0200 [thread overview]
Message-ID: <1299221723.2735.6.camel@localhost> (raw)
In-Reply-To: <AANLkTimXhGRsuL3Z51msS_YEtsa4UZuN9XW8Xb+hu_KN@mail.gmail.com>
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 do
> the straightforward "let's just do the normal mount thing".
/proc/sysrq-trigger is sometimes simply disabled for "security reasons".
I'm not sure about Android, but some systems I know do disable it. So I
think /proc/mounts is a cleaner approach.
--
Best Regards,
Artem Bityutskiy (Артём Битюцкий)
prev parent reply other threads:[~2011-03-04 6:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-03 7:31 [PATCH] Syscalls: reboot: Add options to the reboot syscall to remount filesystems ro Ken Sumrall
2011-03-03 8:18 ` Ingo Molnar
2011-03-03 8:46 ` Dave Young
2011-03-03 8:49 ` Dave Young
2011-03-03 14:00 ` Christoph Hellwig
2011-03-03 17:45 ` Linus Torvalds
2011-03-03 18:17 ` Linus Torvalds
2011-03-03 18:29 ` Mark Lord
2011-03-03 23:23 ` Ken Sumrall
2011-03-07 11:00 ` Dimitris Papastamos
2011-03-03 18:28 ` Mark Lord
2011-03-03 23:36 ` Linus Torvalds
2011-03-04 2:00 ` Ken Sumrall
2011-03-04 2:33 ` Linus Torvalds
2011-03-04 2:48 ` Mark Lord
2011-03-04 2:55 ` Scott James Remnant
2011-03-05 2:45 ` Mark Lord
2011-03-04 6:55 ` Artem Bityutskiy [this message]
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