linux-toradex.git/arch/um/kernel/smp.c, branch v3.17

um: get rid of pointless include "..." where include <...> will do

2012-10-09T20:28:45+00:00

Signed-off-by: Al Viro 
Signed-off-by: Richard Weinberger

smp: Add task_struct argument to __cpu_up()

2012-04-26T10:06:09+00:00

Preparatory patch to make the idle thread allocation for secondary
cpus generic.

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: Rusty Russell 
Cc: Paul E. McKenney 
Cc: Srivatsa S. Bhat 
Cc: Matt Turner 
Cc: Russell King 
Cc: Mike Frysinger 
Cc: Jesper Nilsson 
Cc: Richard Kuo 
Cc: Tony Luck 
Cc: Hirokazu Takata 
Cc: Ralf Baechle 
Cc: David Howells 
Cc: James E.J. Bottomley 
Cc: Benjamin Herrenschmidt 
Cc: Martin Schwidefsky 
Cc: Paul Mundt 
Cc: David S. Miller 
Cc: Chris Metcalf 
Cc: Richard Weinberger 
Cc: x86@kernel.org
Link: http://lkml.kernel.org/r/20120420124556.964170564@linutronix.de

remove references to cpu_*_map in arch/

2012-03-29T05:08:30+00:00

This has been obsolescent for a while; time for the final push.

In adjacent context, replaced old cpus_* with cpumask_*.

Signed-off-by: Rusty Russell 
Acked-by: David S. Miller  (arch/sparc)
Acked-by: Chris Metcalf  (arch/tile)
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: Russell King 
Cc: linux-arm-kernel@lists.infradead.org
Cc: Richard Kuo 
Cc: linux-hexagon@vger.kernel.org
Cc: Ralf Baechle 
Cc: linux-mips@linux-mips.org
Cc: Kyle McMartin 
Cc: Helge Deller 
Cc: sparclinux@vger.kernel.org

mm: now that all old mmu_gather code is gone, remove the storage

2011-05-25T15:39:16+00:00

Fold all the mmu_gather rework patches into one for submission

Signed-off-by: Peter Zijlstra 
Reported-by: Hugh Dickins 
Cc: Benjamin Herrenschmidt 
Cc: David Miller 
Cc: Martin Schwidefsky 
Cc: Russell King 
Cc: Paul Mundt 
Cc: Jeff Dike 
Cc: Richard Weinberger 
Cc: Tony Luck 
Cc: KAMEZAWA Hiroyuki 
Cc: Mel Gorman 
Cc: KOSAKI Motohiro 
Cc: Nick Piggin 
Cc: Namhyung Kim 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sched: Provide scheduler_ipi() callback in response to smp_send_reschedule()

2011-04-14T06:52:32+00:00

For future rework of try_to_wake_up() we'd like to push part of that
function onto the CPU the task is actually going to run on.

In order to do so we need a generic callback from the existing scheduler IPI.

This patch introduces such a generic callback: scheduler_ipi() and
implements it as a NOP.

BenH notes: PowerPC might use this IPI on offline CPUs under rare conditions!

Acked-by: Russell King 
Acked-by: Martin Schwidefsky 
Acked-by: Chris Metcalf 
Acked-by: Jesper Nilsson 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Ralf Baechle 
Reviewed-by: Frank Rowand 
Cc: Mike Galbraith 
Cc: Nick Piggin 
Cc: Linus Torvalds 
Cc: Andrew Morton 
Signed-off-by: Ingo Molnar 
Signed-off-by: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20110405152728.744338123@chello.nl

cpumask: Use accessors for cpu_*_mask: um

2009-09-24T00:04:49+00:00

Use the accessors rather than frobbing bits directly (the new versions
are const).

Signed-off-by: Rusty Russell 
Signed-off-by: Mike Travis

cpumask: centralize cpu_online_map and cpu_possible_map

2008-12-13T10:49:41+00:00

Impact: cleanup

Each SMP arch defines these themselves.  Move them to a central
location.

Twists:
1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
   CONFIG_INIT_ALL_POSSIBLE for this rather than break them.

2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
   Those archs simply have phys_cpu_present_map replaced everywhere.

3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
   so I just manipulate them both in sync.

4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
   declarations.

Signed-off-by: Rusty Russell 
Reviewed-by: Grant Grundler 
Tested-by: Tony Luck 
Acked-by: Ingo Molnar 
Cc: Mike Travis 
Cc: ink@jurassic.park.msu.ru
Cc: rmk@arm.linux.org.uk
Cc: starvik@axis.com
Cc: tony.luck@intel.com
Cc: takata@linux-m32r.org
Cc: ralf@linux-mips.org
Cc: grundler@parisc-linux.org
Cc: paulus@samba.org
Cc: schwidefsky@de.ibm.com
Cc: lethal@linux-sh.org
Cc: wli@holomorphy.com
Cc: davem@davemloft.net
Cc: jdike@addtoit.com
Cc: mingo@redhat.com

kernel/cpu.c: create a CPU_STARTING cpu_chain notifier

2008-09-08T17:25:24+00:00

Right now, there is no notifier that is called on a new cpu, before the new
cpu begins processing interrupts/softirqs.
Various kernel function would need that notification, e.g. kvm works around
by calling smp_call_function_single(), rcu polls cpu_online_map.

The patch adds a CPU_STARTING notification. It also adds a helper function
that sends the message to all cpu_chain handlers.

Tested on x86-64.
All other archs are untested. Especially on sparc, I'm not sure if I got
it right.

Signed-off-by: Manfred Spraul 
Signed-off-by: Ingo Molnar

smp_call_function: get rid of the unused nonatomic/retry argument

2008-06-26T09:24:35+00:00

It's never used and the comments refer to nonatomic and retry
interchangably. So get rid of it.

Acked-by: Jeremy Fitzhardinge 
Signed-off-by: Jens Axboe

uml: style fixes in arch/um/kernel

2008-02-05T17:44:30+00:00

Joe Perches noticed some printks in smp.c that needed fixing.

While I was in there, I did the usual tidying in arch/um/kernel, which
should be fairly style-clean at this point:
	copyright updates
	emacs formatting comments removal
	include tidying
	style fixes

Cc: Joe Perches 
Signed-off-by: Jeff Dike 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds