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be more fair

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git-svn-id: svn://kolibrios.org@3617 a494cfbc-eb01-0410-851d-a64ba20cac60
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CleverMouse 2013-06-07 17:05:31 +00:00
parent ac0e0430a0
commit bf4022be57
1 changed files with 10 additions and 0 deletions
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10
kernel/trunk/core/sched.inc
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@ -392,6 +392,16 @@ proc find_next_task
mov [edi+TASKDATA.state], 0
.task_found:
mov [scheduler_current+ecx*4], ebx
; If we have selected a thread with higher priority
; AND rescheduling is due to IRQ,
; turn the current scheduler list one entry back,
; so the current thread will be next after high-priority thread is done.
mov ecx, [esp]
cmp ecx, NR_SCHED_QUEUES
jz .unlock_found
mov eax, [current_slot]
mov eax, [eax+APPDATA.in_schedule.prev]
mov [scheduler_current+ecx*4], eax
.unlock_found:
pop ecx
spin_unlock_irqrestore SchedulerLock