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Server : LiteSpeed System : Linux srv104790275 5.15.0-161-generic #171-Ubuntu SMP Sat Oct 11 08:17:01 UTC 2025 x86_64 User : dewac4139 ( 1077) PHP Version : 8.0.30 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory : /usr/src/linux-headers-5.15.0-126/arch/powerpc/include/asm/ |
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#ifndef _ASM_POWERPC_MEMBARRIER_H
#define _ASM_POWERPC_MEMBARRIER_H
static inline void membarrier_arch_switch_mm(struct mm_struct *prev,
struct mm_struct *next,
struct task_struct *tsk)
{
/*
* Only need the full barrier when switching between processes.
* Barrier when switching from kernel to userspace is not
* required here, given that it is implied by mmdrop(). Barrier
* when switching from userspace to kernel is not needed after
* store to rq->curr.
*/
if (IS_ENABLED(CONFIG_SMP) &&
likely(!(atomic_read(&next->membarrier_state) &
(MEMBARRIER_STATE_PRIVATE_EXPEDITED |
MEMBARRIER_STATE_GLOBAL_EXPEDITED)) || !prev))
return;
/*
* The membarrier system call requires a full memory barrier
* after storing to rq->curr, before going back to user-space.
*/
smp_mb();
}
#endif /* _ASM_POWERPC_MEMBARRIER_H */