Karsten Wiese wrote:
John Sigler wrote:
Is there some form of priority inheritance? Does the IRQ handler get a
priority boost if a high priority task is waiting for it?
No. But that would be "nice to have".
No to the first question? to the second question? or to both? :-)
In kernel/futex.c does "PI" stand for Priority Inheritance?
e.g.
/*
* Priority Inheritance state:
*/
struct futex_pi_state {
/*
* list of 'owned' pi_state instances - these have to be
* cleaned up in do_exit() if the task exits prematurely:
*/
struct list_head list;
/*
* The PI object:
*/
struct rt_mutex pi_mutex;
struct task_struct *owner;
atomic_t refcount;
union futex_key key;
};
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