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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-23 19:36:53 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-23 19:36:53 -0700 |
commit | 7f9dce38378f0a4a298e885553d6bb7121376376 (patch) | |
tree | 5bfd688c9f356f7216bbc3cef3b4c10153de334b /include/linux | |
parent | 26dcce0fabbef75ae426461edf21b5030bad60f3 (diff) | |
parent | ba42059fbd0aa1ac91b582412b5fedb1258f241f (diff) | |
download | op-kernel-dev-7f9dce38378f0a4a298e885553d6bb7121376376.zip op-kernel-dev-7f9dce38378f0a4a298e885553d6bb7121376376.tar.gz |
Merge branch 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: hrtick_enabled() should use cpu_active()
sched, x86: clean up hrtick implementation
sched: fix build error, provide partition_sched_domains() unconditionally
sched: fix warning in inc_rt_tasks() to not declare variable 'rq' if it's not needed
cpu hotplug: Make cpu_active_map synchronization dependency clear
cpu hotplug, sched: Introduce cpu_active_map and redo sched domain managment (take 2)
sched: rework of "prioritize non-migratable tasks over migratable ones"
sched: reduce stack size in isolated_cpu_setup()
Revert parts of "ftrace: do not trace scheduler functions"
Fixed up conflicts in include/asm-x86/thread_info.h (due to the
TIF_SINGLESTEP unification vs TIF_HRTICK_RESCHED removal) and
kernel/sched_fair.c (due to cpu_active_map vs for_each_cpu_mask_nr()
introduction).
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/cpumask.h | 6 | ||||
-rw-r--r-- | include/linux/cpuset.h | 7 | ||||
-rw-r--r-- | include/linux/sched.h | 11 |
3 files changed, 22 insertions, 2 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 30d59d1..1b5c98e 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -458,13 +458,14 @@ int __next_cpu_nr(int n, const cpumask_t *srcp); /* * The following particular system cpumasks and operations manage - * possible, present and online cpus. Each of them is a fixed size + * possible, present, active and online cpus. Each of them is a fixed size * bitmap of size NR_CPUS. * * #ifdef CONFIG_HOTPLUG_CPU * cpu_possible_map - has bit 'cpu' set iff cpu is populatable * cpu_present_map - has bit 'cpu' set iff cpu is populated * cpu_online_map - has bit 'cpu' set iff cpu available to scheduler + * cpu_active_map - has bit 'cpu' set iff cpu available to migration * #else * cpu_possible_map - has bit 'cpu' set iff cpu is populated * cpu_present_map - copy of cpu_possible_map @@ -515,6 +516,7 @@ int __next_cpu_nr(int n, const cpumask_t *srcp); extern cpumask_t cpu_possible_map; extern cpumask_t cpu_online_map; extern cpumask_t cpu_present_map; +extern cpumask_t cpu_active_map; #if NR_CPUS > 1 #define num_online_cpus() cpus_weight_nr(cpu_online_map) @@ -523,6 +525,7 @@ extern cpumask_t cpu_present_map; #define cpu_online(cpu) cpu_isset((cpu), cpu_online_map) #define cpu_possible(cpu) cpu_isset((cpu), cpu_possible_map) #define cpu_present(cpu) cpu_isset((cpu), cpu_present_map) +#define cpu_active(cpu) cpu_isset((cpu), cpu_active_map) #else #define num_online_cpus() 1 #define num_possible_cpus() 1 @@ -530,6 +533,7 @@ extern cpumask_t cpu_present_map; #define cpu_online(cpu) ((cpu) == 0) #define cpu_possible(cpu) ((cpu) == 0) #define cpu_present(cpu) ((cpu) == 0) +#define cpu_active(cpu) ((cpu) == 0) #endif #define cpu_is_offline(cpu) unlikely(!cpu_online(cpu)) diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h index 0385783..e8f450c 100644 --- a/include/linux/cpuset.h +++ b/include/linux/cpuset.h @@ -78,6 +78,8 @@ extern void cpuset_track_online_nodes(void); extern int current_cpuset_is_being_rebound(void); +extern void rebuild_sched_domains(void); + #else /* !CONFIG_CPUSETS */ static inline int cpuset_init_early(void) { return 0; } @@ -156,6 +158,11 @@ static inline int current_cpuset_is_being_rebound(void) return 0; } +static inline void rebuild_sched_domains(void) +{ + partition_sched_domains(0, NULL, NULL); +} + #endif /* !CONFIG_CPUSETS */ #endif /* _LINUX_CPUSET_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index af443a0..dc7e592 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -825,7 +825,16 @@ extern void partition_sched_domains(int ndoms_new, cpumask_t *doms_new, struct sched_domain_attr *dattr_new); extern int arch_reinit_sched_domains(void); -#endif /* CONFIG_SMP */ +#else /* CONFIG_SMP */ + +struct sched_domain_attr; + +static inline void +partition_sched_domains(int ndoms_new, cpumask_t *doms_new, + struct sched_domain_attr *dattr_new) +{ +} +#endif /* !CONFIG_SMP */ struct io_context; /* See blkdev.h */ #define NGROUPS_SMALL 32 |