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Add comment for non-preempt kernel

This commit is contained in:
Mathieu Maret 2020-05-03 23:14:40 +02:00
parent 319f197fcd
commit 70930ecf50
1 changed files with 3 additions and 1 deletions
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4
drivers/pit.c
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@ -1,9 +1,9 @@
#include "pit.h" #include "pit.h"
#include "io.h" #include "io.h"
#include "irq.h" #include "irq.h"
#include "klibc.h"
#include "kthread.h" #include "kthread.h"
#include "time.h" #include "time.h"
#include "klibc.h"
int pitSetup(unsigned int freq) int pitSetup(unsigned int freq)
{ {
@ -21,5 +21,7 @@ struct cpu_state *pitIrqHandler(struct cpu_state *prevCpu)
{ {
__atomic_add_fetch(&jiffies, 1, __ATOMIC_RELAXED); __atomic_add_fetch(&jiffies, 1, __ATOMIC_RELAXED);
kthreadOnJieffiesTick(); kthreadOnJieffiesTick();
// Uncomment for non-preemptible kernel
// return prevCpu;
return kthreadSwitch(prevCpu); return kthreadSwitch(prevCpu);
} }