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Message-Id: <1188604887.26038.110.camel@dhcp193.mvista.com>
Date: Fri, 31 Aug 2007 17:01:26 -0700
From: Daniel Walker <dwalker@...sta.com>
To: Thomas Gleixner <tglx@...utronix.de>
Cc: LKML <linux-kernel@...r.kernel.org>,
RT-Users <linux-rt-users@...r.kernel.org>,
Ingo Molnar <mingo@...e.hu>
Subject: Re: v2.6.23-rc4-rt1 / new project URL
On Fri, 2007-08-31 at 22:59 +0200, Thomas Gleixner wrote:
> We're pleased to announce the release of the v2.6.23-rc4-rt1 kernel,
> which can be downloaded from a new place:
>
> http://www.kernel.org/pub/linux/kernel/projects/rt/
>
> The move to kernel.org is experimental for now, we'll keep it if it
> works out fine.
>
> Changes since 2.6.23-rc2-rt2:
>
> - update to -rc4
> - update to 2.6.23-rc4-hrt1
>
> - UP compile fixes back merged (Kevin Hilman / Steven Rostedt)
> - various latency tracer fixes (Steven Rostedt)
I'm not sure which latency tracing fixes these are, but Steven's
get_monotonic_cycles() changes are racy .. It might be a little
premature to include them .. It at least fouls latency tracing on my
test machine.
> - simple_irq change (Kevin Hilman): needs more thought
> - RCU updates (Paul McKenney): needs proper integration
> - latency tracer changes (Daniel Walker): needs review
> - PICK_OP changes (Daniel Walker): needs review
The PICK_OP changes got reviewed by Ingo , as of,
http://marc.info/?l=linux-rt-users&m=118638506125380&w=2
They do need one small fix tho .. Below ..
Signed-off-by: Daniel Walker <dwalker@...sta.com>
Index: linux-2.6.22/include/linux/spinlock.h
===================================================================
--- linux-2.6.22.orig/include/linux/spinlock.h 2007-09-01 00:08:04.000000000 +0000
+++ linux-2.6.22/include/linux/spinlock.h 2007-09-01 00:07:48.000000000 +0000
@@ -501,7 +501,7 @@ do { \
#define spin_trylock_irq(lock) \
__cond_lock(lock, PICK_SPIN_OP_RET(__spin_trylock_irq, \
- __spin_trylock_irq, lock))
+ _spin_trylock_irq, lock))
#define spin_trylock_irqsave(lock, flags) \
__cond_lock(lock, PICK_SPIN_OP_RET(__spin_trylock_irqsave, \
-
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