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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-21 15:40:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-21 15:40:24 -0700 |
| commit | ec965350bb98bd291eb34f6ecddfdcfc36da1e6e (patch) | |
| tree | 983bcaf33ed00b48a86f7f8790cc460cf15dd252 /init/main.c | |
| parent | 5f033bb9bc5cb3bb37a79e3ef131f50ecdcb72b0 (diff) | |
| parent | 486fdae21458bd9f4e125099bb3c38a4064e450e (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel: (62 commits)
sched: build fix
sched: better rt-group documentation
sched: features fix
sched: /debug/sched_features
sched: add SCHED_FEAT_DEADLINE
sched: debug: show a weight tree
sched: fair: weight calculations
sched: fair-group: de-couple load-balancing from the rb-trees
sched: fair-group scheduling vs latency
sched: rt-group: optimize dequeue_rt_stack
sched: debug: add some debug code to handle the full hierarchy
sched: fair-group: SMP-nice for group scheduling
sched, cpuset: customize sched domains, core
sched, cpuset: customize sched domains, docs
sched: prepatory code movement
sched: rt: multi level group constraints
sched: task_group hierarchy
sched: fix the task_group hierarchy for UID grouping
sched: allow the group scheduler to have multiple levels
sched: mix tasks and groups
...
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/init/main.c b/init/main.c index 99ce94930b0..833a67df1f7 100644 --- a/init/main.c +++ b/init/main.c @@ -359,10 +359,31 @@ static void __init smp_init(void) #endif static inline void setup_per_cpu_areas(void) { } +static inline void setup_nr_cpu_ids(void) { } static inline void smp_prepare_cpus(unsigned int maxcpus) { } #else +#if NR_CPUS > BITS_PER_LONG +cpumask_t cpu_mask_all __read_mostly = CPU_MASK_ALL; +EXPORT_SYMBOL(cpu_mask_all); +#endif + +/* Setup number of possible processor ids */ +int nr_cpu_ids __read_mostly = NR_CPUS; +EXPORT_SYMBOL(nr_cpu_ids); + +/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */ +static void __init setup_nr_cpu_ids(void) +{ + int cpu, highest_cpu = 0; + + for_each_possible_cpu(cpu) + highest_cpu = cpu; + + nr_cpu_ids = highest_cpu + 1; +} + #ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA unsigned long __per_cpu_offset[NR_CPUS] __read_mostly; @@ -537,6 +558,7 @@ asmlinkage void __init start_kernel(void) setup_command_line(command_line); unwind_setup(); setup_per_cpu_areas(); + setup_nr_cpu_ids(); smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */ /* @@ -811,7 +833,7 @@ static int __init kernel_init(void * unused) /* * init can run on any cpu. */ - set_cpus_allowed(current, CPU_MASK_ALL); + set_cpus_allowed_ptr(current, CPU_MASK_ALL_PTR); /* * Tell the world that we're going to be the grim * reaper of innocent orphaned children. |