From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Linus Torvalds <torvalds@transmeta.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Development <linux-kernel@vger.kernel.org>,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH] M68k ret_from_fork
Date: Sat, 26 Jul 2003 16:51:59 +0200 [thread overview]
Message-ID: <200307261451.h6QEpxKM002478@callisto.of.borg> (raw)
M68k: Revert to 2.4 behavior in ret_from_fork (always call schedule_tail,
regardless of CONFIG_SMP), as suggested by Andreas Schwab.
This removes the warnings from sched.c (from Sam Creasey).
--- linux-2.6.x/arch/m68k/kernel/entry.S Tue May 27 19:02:32 2003
+++ linux-m68k-2.6.x/arch/m68k/kernel/entry.S Fri Jul 18 16:23:57 2003
@@ -68,11 +68,13 @@
addql #4,%sp
jra ret_from_exception
- | schedule_tail is only used with CONFIG_SMP
+ | After a fork we jump here directly from resume,
+ | so that %d1 contains the previous task
+ | schedule_tail now used regardless of CONFIG_SMP
ENTRY(ret_from_fork)
-#ifdef CONFIG_SMP
+ movel %d1,%sp@-
jsr schedule_tail
-#endif
+ addql #4,%sp
jra ret_from_exception
badsys:
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
reply other threads:[~2003-07-26 14:41 UTC|newest]
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