If TIF_NEED_RESCHED is a flag which specifies if we need to reschedule or not then why we use need_resched process specific variable of task_struct.
What's the difference between TIF_NEED_RESCHED and need_ressched?
Gaurav.
hi,
Someone said earlier TIF_NEED_RESCHED replaces nothing.
But, I saw in source that there is no need_resched on a task structure (2.6).
It has been replaced by TIF_NEED_RESCHED flag in thread_info structure.
struct thread_info {
...
unsigned long flags; /* low level flags */
...
};
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */Now the work of task->need_sched = 1 is done by set_tsk_need_resched(p);
(At least on i386)
regards manish
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