mirror of
https://github.com/FEX-Emu/linux.git
synced 2025-02-03 17:44:54 +00:00
2ab516575f
The update of the vdso data happens under xtime_lock, so adding a nested lock is pointless. Just use a seqcount to sync the readers. Reviewed-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
28 lines
561 B
C
28 lines
561 B
C
#ifndef _ASM_X86_VGTOD_H
|
|
#define _ASM_X86_VGTOD_H
|
|
|
|
#include <asm/vsyscall.h>
|
|
#include <linux/clocksource.h>
|
|
|
|
struct vsyscall_gtod_data {
|
|
seqcount_t seq;
|
|
|
|
/* open coded 'struct timespec' */
|
|
time_t wall_time_sec;
|
|
u32 wall_time_nsec;
|
|
|
|
struct timezone sys_tz;
|
|
struct { /* extract of a clocksource struct */
|
|
int vclock_mode;
|
|
cycle_t cycle_last;
|
|
cycle_t mask;
|
|
u32 mult;
|
|
u32 shift;
|
|
} clock;
|
|
struct timespec wall_to_monotonic;
|
|
struct timespec wall_time_coarse;
|
|
};
|
|
extern struct vsyscall_gtod_data vsyscall_gtod_data;
|
|
|
|
#endif /* _ASM_X86_VGTOD_H */
|