From: Al Viro <viro@ZenIV.linux.org.uk>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mathias Krause <minipli@googlemail.com>,
linux-kernel@vger.kernel.org, stable@kernel.org,
Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: [PATCH] init: use KERNEL_DS when trying to start init process
Date: Wed, 8 Jun 2011 11:47:27 +0100 [thread overview]
Message-ID: <20110608104727.GT11521@ZenIV.linux.org.uk> (raw)
In-Reply-To: <BANLkTinwMyVsR-pvimeVkcqQrCuNDK4zKw@mail.gmail.com>
On Tue, Jun 07, 2011 at 07:00:24PM -0700, Linus Torvalds wrote:
> That said, that commit (it's commit ID 4095b99c09e3d in tglx's tree)
> predates the "real" BK history too: it's part of the (limited) 2.4.x
> history that was imported from the release patches into BK at the
> beginning of the use of BK. So at that point we didn't do indivual
> commits, it's just the import of the v2.4.3.7 -> v2.4.3.8 patch.
>
> But yeah, it's old and crufty. And I agree that usually the correct
> fix is to remove the set_fs() calls entirely.
I think these days its job is done by start_thread(), which is where we
switch to USER_DS; it's called by ->load_binary() when it decides it's past
the point of no return. However, it would be a good idea to verify that
all architectures do it there properly and we are not exposing a hole by
removal of this set_fs()...
next prev parent reply other threads:[~2011-06-08 10:47 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-30 16:17 [PATCH] init: use KERNEL_DS when trying to start init process Mathias Krause
2011-06-06 23:12 ` Andrew Morton
2011-06-07 6:49 ` Mathias Krause
2011-06-08 2:00 ` Linus Torvalds
2011-06-08 8:23 ` Mathias Krause
2011-06-08 10:47 ` Al Viro [this message]
2011-06-08 12:14 ` Mathias Krause
2011-06-08 14:03 ` Al Viro
2011-06-08 20:20 ` Chris Metcalf
2011-06-09 8:14 ` Mathias Krause
2011-06-09 10:40 ` Al Viro
2011-06-09 12:06 ` Mathias Krause
2011-06-09 15:56 ` Linus Torvalds
2011-06-09 16:40 ` Mathias Krause
2011-06-09 17:03 ` Linus Torvalds
2011-06-09 18:05 ` Mathias Krause
2011-06-09 22:56 ` [PATCH] init: use KERNEL_DS when trying to start init process Andrew Morton
2011-06-10 8:11 ` Mathias Krause
2011-06-10 13:08 ` [PATCH] alpha, exec: remove redundant set_fs(USER_DS) Mathias Krause
2011-06-10 13:08 ` [PATCH] arm, " Mathias Krause
2011-06-10 13:48 ` Russell King - ARM Linux
2011-06-10 13:53 ` Mathias Krause
2011-06-27 4:29 ` Mathias Krause
2011-06-10 13:09 ` [PATCH] avr32, " Mathias Krause
2011-06-14 11:28 ` Hans-Christian Egtvedt
2011-06-10 13:09 ` [PATCH] blackfin, " Mathias Krause
2011-06-10 14:17 ` Mike Frysinger
2011-06-10 13:09 ` [PATCH] cris, " Mathias Krause
2011-06-10 13:09 ` [PATCH] frv, " Mathias Krause
2011-06-10 13:09 ` [PATCH] h8300, " Mathias Krause
2011-06-10 13:09 ` [PATCH] ia64, " Mathias Krause
2011-06-10 13:09 ` [PATCH] m32r, " Mathias Krause
2011-06-10 13:09 ` [PATCH] m68k, " Mathias Krause
2011-06-15 14:40 ` Geert Uytterhoeven
2011-06-15 15:49 ` Mathias Krause
2011-06-10 13:09 ` [PATCH] microblaze, " Mathias Krause
2011-07-05 11:45 ` Michal Simek
2011-06-10 13:10 ` [PATCH] mips, exec: remove redundant addr_limit assignment Mathias Krause
2011-06-10 13:10 ` [PATCH] mn10300, exec: remove redundant set_fs(USER_DS) Mathias Krause
2011-06-10 13:10 ` [PATCH] parisc, " Mathias Krause
2011-06-10 13:10 ` [PATCH] ppc, " Mathias Krause
2011-06-10 13:10 ` [PATCH] s390, " Mathias Krause
2011-06-10 13:10 ` [PATCH] sh, " Mathias Krause
2011-06-14 6:33 ` Paul Mundt
2011-06-10 13:10 ` [PATCH] sparc, exec: remove redundant addr_limit assignment Mathias Krause
2011-06-11 23:08 ` David Miller
2011-06-11 23:44 ` Al Viro
2011-06-12 0:58 ` David Miller
2011-06-12 1:01 ` Linus Torvalds
2011-06-12 1:04 ` David Miller
2011-06-13 20:28 ` Mathias Krause
2011-06-17 18:45 ` Mathias Krause
2011-06-10 13:10 ` [PATCH] um, exec: remove redundant set_fs(USER_DS) Mathias Krause
2011-06-10 20:00 ` Richard Weinberger
2011-06-10 13:11 ` [PATCH] unicore32, " Mathias Krause
2011-06-13 9:19 ` Guan Xuetao
2011-06-13 16:02 ` Mathias Krause
2011-06-14 7:03 ` Guan Xuetao
2011-06-10 15:52 ` [PATCH] init: use KERNEL_DS when trying to start init process Randy Dunlap
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