Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Peter Zijlstra |
67 |
69.07% |
4 |
30.77% |
| Paul E. McKenney |
10 |
10.31% |
1 |
7.69% |
| Patrick Bellasi |
4 |
4.12% |
1 |
7.69% |
| Jens Axboe |
4 |
4.12% |
2 |
15.38% |
| Christoph Hellwig |
4 |
4.12% |
1 |
7.69% |
| Huang Ying |
3 |
3.09% |
1 |
7.69% |
| Steven Rostedt |
2 |
2.06% |
1 |
7.69% |
| Linus Torvalds (pre-git) |
2 |
2.06% |
1 |
7.69% |
| Greg Kroah-Hartman |
1 |
1.03% |
1 |
7.69% |
| Total |
97 |
|
13 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_SMP_TYPES_H
#define __LINUX_SMP_TYPES_H
#include <linux/llist.h>
enum {
CSD_FLAG_LOCK = 0x01,
IRQ_WORK_PENDING = 0x01,
IRQ_WORK_BUSY = 0x02,
IRQ_WORK_LAZY = 0x04, /* No IPI, wait for tick */
IRQ_WORK_HARD_IRQ = 0x08, /* IRQ context on PREEMPT_RT */
IRQ_WORK_CLAIMED = (IRQ_WORK_PENDING | IRQ_WORK_BUSY),
CSD_TYPE_ASYNC = 0x00,
CSD_TYPE_SYNC = 0x10,
CSD_TYPE_IRQ_WORK = 0x20,
CSD_TYPE_TTWU = 0x30,
CSD_FLAG_TYPE_MASK = 0xF0,
};
/*
* struct __call_single_node is the primary type on
* smp.c:call_single_queue.
*
* flush_smp_call_function_queue() only reads the type from
* __call_single_node::u_flags as a regular load, the above
* (anonymous) enum defines all the bits of this word.
*
* Other bits are not modified until the type is known.
*
* CSD_TYPE_SYNC/ASYNC:
* struct {
* struct llist_node node;
* unsigned int flags;
* smp_call_func_t func;
* void *info;
* };
*
* CSD_TYPE_IRQ_WORK:
* struct {
* struct llist_node node;
* atomic_t flags;
* void (*func)(struct irq_work *);
* };
*
* CSD_TYPE_TTWU:
* struct {
* struct llist_node node;
* unsigned int flags;
* };
*
*/
struct __call_single_node {
struct llist_node llist;
union {
unsigned int u_flags;
atomic_t a_flags;
};
#ifdef CONFIG_64BIT
u16 src, dst;
#endif
};
#endif /* __LINUX_SMP_TYPES_H */