linux-toradex.git/arch/m32r/kernel/smpboot.c, branch v2.6.35-rc3

cpumask: Use accessors for cpu_*_mask: m32r

2009-09-24T00:04:47+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

m32r: remove redundant tests on unsigned

2009-09-22T14:17:43+00:00

`off' and `max_cpus' are unsigned.  When negative they are wrapped and
caught by the other test.

Signed-off-by: Roel Kluin 
Cc: Hirokazu Takata 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

percpu: fix percpu accessors to potentially !cpu_possible() cpus: m32r

2008-12-31T23:42:14+00:00

Impact: CPU iterator bugfixes

Percpu areas are only allocated for possible cpus.  In general, you
shouldn't access random cpu's percpu areas.

Signed-off-by: Rusty Russell 
Signed-off-by: Mike Travis 
Acked-by: Ingo Molnar 
Acked-by: Hirokazu Takata

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

m32r: fix build due to notify_cpu_starting() change

2008-10-16T17:00:57+00:00

fix:

arch/m32r/kernel/smpboot.c:501: err
or: implicit declaration of function 'notify_cpu_starting'
make[2]: *** [arch/m32r/kernel/smpboot.o] Error 1
make[2]: *** Waiting for unfinished jobs....

Signed-off-by: Ingo Molnar

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

m32r: build fix of arch/m32r/kernel/smpboot.c

2008-02-07T16:42:32+00:00

This patch is for Mathieu Desnoyers's include/asm-m32r/local.h.
Applying the new include/asm-m32r/local.h, inclusion of linux/sched.h
is needed to fix a build error of arch/m32r/kernel/smpboot.c.

<--  snip  -->
  ...
  CC      arch/m32r/kernel/smpboot.o
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'do_boot_cpu':
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: error: implicit declaration of function 'fork_idle'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:279: warning: assignment makes pointer from integer without a cast
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:283: error: dereferencing pointer to incomplete type
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:289: error: dereferencing pointer to incomplete type
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: implicit declaration of function 'task_thread_info'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:290: error: invalid type argument of '->'
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c: In function 'start_secondary':
/project/m32r-linux/kernel/work/linux-2.6_dev.git/arch/m32r/kernel/smpboot.c:429: error: implicit declaration of function 'cpu_init'
make[2]: *** [arch/m32r/kernel/smpboot.o] Error 1
<--  snip  -->

Signed-off-by: Hirokazu Takata 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

spelling fixes: arch/m32r/

2007-10-19T23:14:39+00:00

Spelling fixes in arch/m32r/.

Signed-off-by: Simon Arlott 
Signed-off-by: Adrian Bunk

m32r: build fix for removing fs.h from mm.h

2007-07-30T17:52:10+00:00

This patch fixes the m32r build after the commit "Remove fs.h from mm.h"
was merged (commit 4e950f6f0189f65f8bf069cf2272649ef418f5e4).

Signed-off-by: Hirokazu Takata 
Signed-off-by: Linus Torvalds

header cleaning: don't include smp_lock.h when not used

2007-05-08T18:15:07+00:00

Remove includes of  where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds