|
Server : Apache/2.4.18 (Ubuntu) System : Linux canvaswebdesign 3.13.0-71-generic #114-Ubuntu SMP Tue Dec 1 02:34:22 UTC 2015 x86_64 User : oppastar ( 1041) PHP Version : 7.0.33-0ubuntu0.16.04.15 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_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Directory : /usr/src/linux-headers-4.4.0-72-generic/arch/microblaze/include/asm/ |
Upload File : |
#ifndef _ASM_MICROBLAZE_ATOMIC_H
#define _ASM_MICROBLAZE_ATOMIC_H
#include <asm/cmpxchg.h>
#include <asm-generic/atomic.h>
#include <asm-generic/atomic64.h>
/*
* Atomically test *v and decrement if it is greater than 0.
* The function returns the old value of *v minus 1.
*/
static inline int atomic_dec_if_positive(atomic_t *v)
{
unsigned long flags;
int res;
local_irq_save(flags);
res = v->counter - 1;
if (res >= 0)
v->counter = res;
local_irq_restore(flags);
return res;
}
#define atomic_dec_if_positive atomic_dec_if_positive
#endif /* _ASM_MICROBLAZE_ATOMIC_H */