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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-02 12:52:58 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-07-02 12:52:58 -0400 |
commit | 123f94f22e3d283dfe68742b269c245b0501ad82 (patch) | |
tree | 1d40043b0909f309cf77204ea87be9e61f143e79 /kernel/time/tick-sched.c | |
parent | 4b78c119f0ba715b4e29b190bf4d7bce810ea0d6 (diff) | |
parent | 8c215bd3890c347dfb6a2db4779755f8b9c298a9 (diff) |
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
sched: Cure nr_iowait_cpu() users
init: Fix comment
init, sched: Fix race between init and kthreadd
Diffstat (limited to 'kernel/time/tick-sched.c')
-rw-r--r-- | kernel/time/tick-sched.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 783fbadf2202..813993b5fb61 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c | |||
@@ -154,14 +154,14 @@ static void tick_nohz_update_jiffies(ktime_t now) | |||
154 | * Updates the per cpu time idle statistics counters | 154 | * Updates the per cpu time idle statistics counters |
155 | */ | 155 | */ |
156 | static void | 156 | static void |
157 | update_ts_time_stats(struct tick_sched *ts, ktime_t now, u64 *last_update_time) | 157 | update_ts_time_stats(int cpu, struct tick_sched *ts, ktime_t now, u64 *last_update_time) |
158 | { | 158 | { |
159 | ktime_t delta; | 159 | ktime_t delta; |
160 | 160 | ||
161 | if (ts->idle_active) { | 161 | if (ts->idle_active) { |
162 | delta = ktime_sub(now, ts->idle_entrytime); | 162 | delta = ktime_sub(now, ts->idle_entrytime); |
163 | ts->idle_sleeptime = ktime_add(ts->idle_sleeptime, delta); | 163 | ts->idle_sleeptime = ktime_add(ts->idle_sleeptime, delta); |
164 | if (nr_iowait_cpu() > 0) | 164 | if (nr_iowait_cpu(cpu) > 0) |
165 | ts->iowait_sleeptime = ktime_add(ts->iowait_sleeptime, delta); | 165 | ts->iowait_sleeptime = ktime_add(ts->iowait_sleeptime, delta); |
166 | ts->idle_entrytime = now; | 166 | ts->idle_entrytime = now; |
167 | } | 167 | } |
@@ -175,19 +175,19 @@ static void tick_nohz_stop_idle(int cpu, ktime_t now) | |||
175 | { | 175 | { |
176 | struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu); | 176 | struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu); |
177 | 177 | ||
178 | update_ts_time_stats(ts, now, NULL); | 178 | update_ts_time_stats(cpu, ts, now, NULL); |
179 | ts->idle_active = 0; | 179 | ts->idle_active = 0; |
180 | 180 | ||
181 | sched_clock_idle_wakeup_event(0); | 181 | sched_clock_idle_wakeup_event(0); |
182 | } | 182 | } |
183 | 183 | ||
184 | static ktime_t tick_nohz_start_idle(struct tick_sched *ts) | 184 | static ktime_t tick_nohz_start_idle(int cpu, struct tick_sched *ts) |
185 | { | 185 | { |
186 | ktime_t now; | 186 | ktime_t now; |
187 | 187 | ||
188 | now = ktime_get(); | 188 | now = ktime_get(); |
189 | 189 | ||
190 | update_ts_time_stats(ts, now, NULL); | 190 | update_ts_time_stats(cpu, ts, now, NULL); |
191 | 191 | ||
192 | ts->idle_entrytime = now; | 192 | ts->idle_entrytime = now; |
193 | ts->idle_active = 1; | 193 | ts->idle_active = 1; |
@@ -216,7 +216,7 @@ u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time) | |||
216 | if (!tick_nohz_enabled) | 216 | if (!tick_nohz_enabled) |
217 | return -1; | 217 | return -1; |
218 | 218 | ||
219 | update_ts_time_stats(ts, ktime_get(), last_update_time); | 219 | update_ts_time_stats(cpu, ts, ktime_get(), last_update_time); |
220 | 220 | ||
221 | return ktime_to_us(ts->idle_sleeptime); | 221 | return ktime_to_us(ts->idle_sleeptime); |
222 | } | 222 | } |
@@ -242,7 +242,7 @@ u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time) | |||
242 | if (!tick_nohz_enabled) | 242 | if (!tick_nohz_enabled) |
243 | return -1; | 243 | return -1; |
244 | 244 | ||
245 | update_ts_time_stats(ts, ktime_get(), last_update_time); | 245 | update_ts_time_stats(cpu, ts, ktime_get(), last_update_time); |
246 | 246 | ||
247 | return ktime_to_us(ts->iowait_sleeptime); | 247 | return ktime_to_us(ts->iowait_sleeptime); |
248 | } | 248 | } |
@@ -284,7 +284,7 @@ void tick_nohz_stop_sched_tick(int inidle) | |||
284 | */ | 284 | */ |
285 | ts->inidle = 1; | 285 | ts->inidle = 1; |
286 | 286 | ||
287 | now = tick_nohz_start_idle(ts); | 287 | now = tick_nohz_start_idle(cpu, ts); |
288 | 288 | ||
289 | /* | 289 | /* |
290 | * If this cpu is offline and it is the one which updates | 290 | * If this cpu is offline and it is the one which updates |