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| author | Ingo Molnar <mingo@elte.hu> | 2007-08-25 18:41:53 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-08-25 18:41:53 +0200 |
| commit | 172ac3dbb7d3e528ac53d08a34df88d1ac53c534 (patch) | |
| tree | f17de2a4a7a562792fd85a14bb1c278bb8c40804 | |
| parent | 218050855ece4e923106ab614ac65afa0f618df3 (diff) | |
| download | lwn-172ac3dbb7d3e528ac53d08a34df88d1ac53c534.tar.gz lwn-172ac3dbb7d3e528ac53d08a34df88d1ac53c534.zip | |
sched: cleanup, sched_granularity -> sched_min_granularity
due to adaptive granularity scheduling the role of sched_granularity
has changed to "minimum granularity", so rename the variable (and the
tunable) accordingly.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
| -rw-r--r-- | include/linux/sched.h | 2 | ||||
| -rw-r--r-- | kernel/sched.c | 6 | ||||
| -rw-r--r-- | kernel/sched_fair.c | 4 | ||||
| -rw-r--r-- | kernel/sysctl.c | 4 |
4 files changed, 8 insertions, 8 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 322764e04052..bd6a0320a770 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1400,7 +1400,7 @@ static inline void idle_task_exit(void) {} extern void sched_idle_next(void); extern unsigned int sysctl_sched_latency; -extern unsigned int sysctl_sched_granularity; +extern unsigned int sysctl_sched_min_granularity; extern unsigned int sysctl_sched_wakeup_granularity; extern unsigned int sysctl_sched_batch_wakeup_granularity; extern unsigned int sysctl_sched_stat_granularity; diff --git a/kernel/sched.c b/kernel/sched.c index da26f46d50d7..a40ab657ad19 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -4913,9 +4913,9 @@ static inline void sched_init_granularity(void) unsigned int factor = 1 + ilog2(num_online_cpus()); const unsigned long limit = 100000000; - sysctl_sched_granularity *= factor; - if (sysctl_sched_granularity > limit) - sysctl_sched_granularity = limit; + sysctl_sched_min_granularity *= factor; + if (sysctl_sched_min_granularity > limit) + sysctl_sched_min_granularity = limit; sysctl_sched_latency *= factor; if (sysctl_sched_latency > limit) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 0ba1e60f08d0..ee3771850aaf 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -40,7 +40,7 @@ unsigned int sysctl_sched_latency __read_mostly = 20000000ULL; * Minimal preemption granularity for CPU-bound tasks: * (default: 2 msec, units: nanoseconds) */ -unsigned int sysctl_sched_granularity __read_mostly = 2000000ULL; +unsigned int sysctl_sched_min_granularity __read_mostly = 2000000ULL; /* * SCHED_BATCH wake-up granularity. @@ -258,7 +258,7 @@ sched_granularity(struct cfs_rq *cfs_rq) if (nr > 1) { gran = gran/nr - gran/nr/nr; - gran = max(gran, sysctl_sched_granularity); + gran = max(gran, sysctl_sched_min_granularity); } return gran; diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 9e3d2960faf5..6ace893c17c9 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -222,8 +222,8 @@ static ctl_table kern_table[] = { #ifdef CONFIG_SCHED_DEBUG { .ctl_name = CTL_UNNUMBERED, - .procname = "sched_granularity_ns", - .data = &sysctl_sched_granularity, + .procname = "sched_min_granularity_ns", + .data = &sysctl_sched_min_granularity, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = &proc_dointvec_minmax, |