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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970/* 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 */