mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 06:55:07 +07:00
88d19cf379
In cases where a timerqueue_node or some structure that utilizes a timerqueue_node is allocated on the stack, gcc would give warnings caused by the timerqueue_init()'s calling RB_CLEAR_NODE, which self-references the nodes uninitialized data. The solution is to create an rb_init_node() function that zeros the rb_node structure out and then calls RB_CLEAR_NODE(), and then call the new init function from timerqueue_init(). CC: Thomas Gleixner <tglx@linutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
#ifndef _LINUX_TIMERQUEUE_H
|
|
#define _LINUX_TIMERQUEUE_H
|
|
|
|
#include <linux/rbtree.h>
|
|
#include <linux/ktime.h>
|
|
|
|
|
|
struct timerqueue_node {
|
|
struct rb_node node;
|
|
ktime_t expires;
|
|
};
|
|
|
|
struct timerqueue_head {
|
|
struct rb_root head;
|
|
struct timerqueue_node *next;
|
|
};
|
|
|
|
|
|
extern void timerqueue_add(struct timerqueue_head *head,
|
|
struct timerqueue_node *node);
|
|
extern void timerqueue_del(struct timerqueue_head *head,
|
|
struct timerqueue_node *node);
|
|
extern struct timerqueue_node *timerqueue_iterate_next(
|
|
struct timerqueue_node *node);
|
|
|
|
/**
|
|
* timerqueue_getnext - Returns the timer with the earliest expiration time
|
|
*
|
|
* @head: head of timerqueue
|
|
*
|
|
* Returns a pointer to the timer node that has the
|
|
* earliest expiration time.
|
|
*/
|
|
static inline
|
|
struct timerqueue_node *timerqueue_getnext(struct timerqueue_head *head)
|
|
{
|
|
return head->next;
|
|
}
|
|
|
|
static inline void timerqueue_init(struct timerqueue_node *node)
|
|
{
|
|
rb_init_node(&node->node);
|
|
}
|
|
|
|
static inline void timerqueue_init_head(struct timerqueue_head *head)
|
|
{
|
|
head->head = RB_ROOT;
|
|
head->next = NULL;
|
|
}
|
|
#endif /* _LINUX_TIMERQUEUE_H */
|