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| author | jeff <jeff@FreeBSD.org> | 2007-06-05 00:00:57 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2007-06-05 00:00:57 +0000 |
| commit | 91d150179059555ef497f4b5b5a560fdb24e472f (patch) | |
| tree | 6727b982fa0d93b8aafab313bdc797aee9e314d2 /sys/kern/kern_cpu.c | |
| parent | 8297f778b9d0a595a99ca58d332ab4111b636019 (diff) | |
| download | FreeBSD-src-91d150179059555ef497f4b5b5a560fdb24e472f.zip FreeBSD-src-91d150179059555ef497f4b5b5a560fdb24e472f.tar.gz | |
Commit 14/14 of sched_lock decomposition.
- Use thread_lock() rather than sched_lock for per-thread scheduling
sychronization.
- Use the per-process spinlock rather than the sched_lock for per-process
scheduling synchronization.
Tested by: kris, current@
Tested on: i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc.
Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)
Diffstat (limited to 'sys/kern/kern_cpu.c')
| -rw-r--r-- | sys/kern/kern_cpu.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/sys/kern/kern_cpu.c b/sys/kern/kern_cpu.c index 3d2adfd..6a72b9c 100644 --- a/sys/kern/kern_cpu.c +++ b/sys/kern/kern_cpu.c @@ -298,17 +298,17 @@ cf_set_method(device_t dev, const struct cf_level *level, int priority) cpu_id = PCPU_GET(cpuid); pc = cpu_get_pcpu(set->dev); if (cpu_id != pc->pc_cpuid) { - mtx_lock_spin(&sched_lock); + thread_lock(curthread); sched_bind(curthread, pc->pc_cpuid); - mtx_unlock_spin(&sched_lock); + thread_unlock(curthread); } CF_DEBUG("setting abs freq %d on %s (cpu %d)\n", set->freq, device_get_nameunit(set->dev), PCPU_GET(cpuid)); error = CPUFREQ_DRV_SET(set->dev, set); if (cpu_id != pc->pc_cpuid) { - mtx_lock_spin(&sched_lock); + thread_lock(curthread); sched_unbind(curthread); - mtx_unlock_spin(&sched_lock); + thread_unlock(curthread); } if (error) { goto out; @@ -327,17 +327,17 @@ cf_set_method(device_t dev, const struct cf_level *level, int priority) cpu_id = PCPU_GET(cpuid); pc = cpu_get_pcpu(set->dev); if (cpu_id != pc->pc_cpuid) { - mtx_lock_spin(&sched_lock); + thread_lock(curthread); sched_bind(curthread, pc->pc_cpuid); - mtx_unlock_spin(&sched_lock); + thread_unlock(curthread); } CF_DEBUG("setting rel freq %d on %s (cpu %d)\n", set->freq, device_get_nameunit(set->dev), PCPU_GET(cpuid)); error = CPUFREQ_DRV_SET(set->dev, set); if (cpu_id != pc->pc_cpuid) { - mtx_lock_spin(&sched_lock); + thread_lock(curthread); sched_unbind(curthread); - mtx_unlock_spin(&sched_lock); + thread_unlock(curthread); } if (error) { /* XXX Back out any successful setting? */ |
