[Linux kernel] [Linux interrupts]--other

1, how to disable all interrupts on the current CPU

Local_irq_save () and Local_irq_restore () functions,

[CPP] view plaincopy

1. void Local_irq_save (unsigned long flags);
2. void local_irq_disable (void);

2, there is no way to prohibit the interruption of the entire system

3, if the current process is determined to be in an interrupted context,

A: By using the In_interrupt () function, In_interrupt () determines whether the current process is in the interrupt context, which includes the bottom half and the hardware interrupt processing,

4, how to prohibit the local processor soft interrupt and tasklet processing

Answer: void local_bh_disable () and void local_bh_enable () functions

[Linux kernel] [Linux interrupts]--other