linux-kernel - Re: [PATCH 1/1] sys_sysfs: Add CONFIG_SYSFS

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Message-ID: <20140213223141.GA1232@redhat.com>
Date:	Thu, 13 Feb 2014 17:31:41 -0500
From:	Dave Jones <davej@...hat.com>
To:	Fabian Frederick <fabf@...net.be>
Cc:	linux-kernel@...r.kernel.org, akpm <akpm@...ux-foundation.org>,
	rdunlap <rdunlap@...radead.org>, gregkh@...uxfoundation.org
Subject: Re: [PATCH 1/1] sys_sysfs: Add CONFIG_SYSFS_SYSCALL

On Thu, Feb 13, 2014 at 10:09:42PM +0800, Fabian Frederick wrote:
 > sys_sysfs is an obsolete system call no longer supported by libc ...
 > -This patch adds a default CONFIG_SYSFS_SYSCALL=y
 > -Option can be turned off in expert mode.
 > -cond_syscall added to kernel/sys_ni.c
 > 
 > Signed-off-by: Fabian Frederick <fabf@...net.be>
 > ---
 >  fs/filesystems.c |  2 ++
 >  init/Kconfig     | 10 ++++++++++
 >  kernel/sys_ni.c  |  1 +
 >  3 files changed, 13 insertions(+)

did anyone ever ship userspace that actually used that syscall ?
Some ancient version of udev that probably doesn't work on a modern kernel anyway maybe ?

I wonder if it's something we can make -ENOSYS unconditionally at some point,
and remove all that code entirely.

	Dave

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