Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\sched\membarrier.c Create Date:2022-07-28 09:45:32
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:membarrier_register_global_expedited

Proto:static int membarrier_register_global_expedited(void)

Type:int

Parameter:Nothing

261  p = current process
262  mm = mm
265  If atomic_read( & membarrier_state) & MEMBARRIER_STATE_GLOBAL_EXPEDITED_READY Then Return 0
268  atomic_or(MEMBARRIER_STATE_GLOBAL_EXPEDITED, & membarrier_state)
269  ret = sync_runqueues_membarrier_state(mm)
270  If ret Then Return ret
272  atomic_or(MEMBARRIER_STATE_GLOBAL_EXPEDITED_READY, & membarrier_state)
275  Return 0
Caller
NameDescribe
SYSCALL_DEFINE2sys_membarrier - issue memory barriers on a set of threads*@cmd: Takes command values defined in enum membarrier_cmd