Eric Lee / linux-smarc-t335x-v3.2

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Commit 8bdec955b0da2ffbd10eb9b200651dd1f9e366f2

Authored by Thomas Gleixner
Committed by Ingo Molnar
1 parent fe0bdec68b
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

hrtimer: splitout peek ahead functionality 

Impact: cleanup

Provide a peek ahead function that assumes irqs disabled, allows for micro
optimizations.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Showing 1 changed file with 17 additions and 7 deletions Side-by-side Diff

... ... @@ -1243,6 +1243,22 @@
1243 1243 }
1244 1244 }
1245 1245  
  1246 +/*
  1247 + * local version of hrtimer_peek_ahead_timers() called with interrupts
  1248 + * disabled.
  1249 + */
  1250 +static void __hrtimer_peek_ahead_timers(void)
  1251 +{
  1252 + struct tick_device *td;
  1253 +
  1254 + if (!hrtimer_hres_active())
  1255 + return;
  1256 +
  1257 + td = &__get_cpu_var(tick_cpu_device);
  1258 + if (td && td->evtdev)
  1259 + hrtimer_interrupt(td->evtdev);
  1260 +}
  1261 +
1246 1262 /**
1247 1263 * hrtimer_peek_ahead_timers -- run soft-expired timers now
1248 1264 *
1249 1265  
1250 1266  
... ... @@ -1254,16 +1270,10 @@
1254 1270 */
1255 1271 void hrtimer_peek_ahead_timers(void)
1256 1272 {
1257   - struct tick_device *td;
1258 1273 unsigned long flags;
1259 1274  
1260   - if (!hrtimer_hres_active())
1261   - return;
1262   -
1263 1275 local_irq_save(flags);
1264   - td = &__get_cpu_var(tick_cpu_device);
1265   - if (td && td->evtdev)
1266   - hrtimer_interrupt(td->evtdev);
  1276 + __hrtimer_peek_ahead_timers();
1267 1277 local_irq_restore(flags);
1268 1278 }
1269 1279