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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 19:43:57 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 19:43:57 -0700 |
commit | bf67f3a5c456a18f2e8d062f7e88506ef2cd9837 (patch) | |
tree | 2a2324b2572162059307db82f9238eeb25673a77 /arch/arm/kernel/smp.c | |
parent | 226da0dbc84ed97f448523e2a4cb91c27fa68ed9 (diff) | |
parent | 203dacbdca977bedaba61ad2fca75d934060a5d5 (diff) | |
download | op-kernel-dev-bf67f3a5c456a18f2e8d062f7e88506ef2cd9837.zip op-kernel-dev-bf67f3a5c456a18f2e8d062f7e88506ef2cd9837.tar.gz |
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull smp hotplug cleanups from Thomas Gleixner:
"This series is merily a cleanup of code copied around in arch/* and
not changing any of the real cpu hotplug horrors yet. I wish I'd had
something more substantial for 3.5, but I underestimated the lurking
horror..."
Fix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and
arch/sparc/include/asm/thread_info_32.h
* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)
um: Remove leftover declaration of alloc_task_struct_node()
task_allocator: Use config switches instead of magic defines
sparc: Use common threadinfo allocator
score: Use common threadinfo allocator
sh-use-common-threadinfo-allocator
mn10300: Use common threadinfo allocator
powerpc: Use common threadinfo allocator
mips: Use common threadinfo allocator
hexagon: Use common threadinfo allocator
m32r: Use common threadinfo allocator
frv: Use common threadinfo allocator
cris: Use common threadinfo allocator
x86: Use common threadinfo allocator
c6x: Use common threadinfo allocator
fork: Provide kmemcache based thread_info allocator
tile: Use common threadinfo allocator
fork: Provide weak arch_release_[task_struct|thread_info] functions
fork: Move thread info gfp flags to header
fork: Remove the weak insanity
sh: Remove cpu_idle_wait()
...
Diffstat (limited to 'arch/arm/kernel/smp.c')
-rw-r--r-- | arch/arm/kernel/smp.c | 26 |
1 files changed, 1 insertions, 25 deletions
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index cf58558..b735521 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -60,32 +60,11 @@ enum ipi_msg_type { static DECLARE_COMPLETION(cpu_running); -int __cpuinit __cpu_up(unsigned int cpu) +int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle) { - struct cpuinfo_arm *ci = &per_cpu(cpu_data, cpu); - struct task_struct *idle = ci->idle; int ret; /* - * Spawn a new process manually, if not already done. - * Grab a pointer to its task struct so we can mess with it - */ - if (!idle) { - idle = fork_idle(cpu); - if (IS_ERR(idle)) { - printk(KERN_ERR "CPU%u: fork() failed\n", cpu); - return PTR_ERR(idle); - } - ci->idle = idle; - } else { - /* - * Since this idle thread is being re-used, call - * init_idle() to reinitialize the thread structure. - */ - init_idle(idle, cpu); - } - - /* * We need to tell the secondary core where to find * its stack and the page tables. */ @@ -318,9 +297,6 @@ void __init smp_cpus_done(unsigned int max_cpus) void __init smp_prepare_boot_cpu(void) { - unsigned int cpu = smp_processor_id(); - - per_cpu(cpu_data, cpu).idle = current; } void __init smp_prepare_cpus(unsigned int max_cpus) |