diff options
Diffstat (limited to 'arch/x86/vdso/vclock_gettime.c')
| -rw-r--r-- | arch/x86/vdso/vclock_gettime.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c index bbc80657050f..fd074dd19a4a 100644 --- a/arch/x86/vdso/vclock_gettime.c +++ b/arch/x86/vdso/vclock_gettime.c @@ -209,7 +209,7 @@ notrace static int do_monotonic(struct timespec *ts) return mode; } -notrace static int do_realtime_coarse(struct timespec *ts) +notrace static void do_realtime_coarse(struct timespec *ts) { unsigned long seq; do { @@ -217,10 +217,9 @@ notrace static int do_realtime_coarse(struct timespec *ts) ts->tv_sec = gtod->wall_time_coarse.tv_sec; ts->tv_nsec = gtod->wall_time_coarse.tv_nsec; } while (unlikely(read_seqcount_retry(>od->seq, seq))); - return 0; } -notrace static int do_monotonic_coarse(struct timespec *ts) +notrace static void do_monotonic_coarse(struct timespec *ts) { unsigned long seq; do { @@ -228,30 +227,32 @@ notrace static int do_monotonic_coarse(struct timespec *ts) ts->tv_sec = gtod->monotonic_time_coarse.tv_sec; ts->tv_nsec = gtod->monotonic_time_coarse.tv_nsec; } while (unlikely(read_seqcount_retry(>od->seq, seq))); - - return 0; } notrace int __vdso_clock_gettime(clockid_t clock, struct timespec *ts) { - int ret = VCLOCK_NONE; - switch (clock) { case CLOCK_REALTIME: - ret = do_realtime(ts); + if (do_realtime(ts) == VCLOCK_NONE) + goto fallback; break; case CLOCK_MONOTONIC: - ret = do_monotonic(ts); + if (do_monotonic(ts) == VCLOCK_NONE) + goto fallback; break; case CLOCK_REALTIME_COARSE: - return do_realtime_coarse(ts); + do_realtime_coarse(ts); + break; case CLOCK_MONOTONIC_COARSE: - return do_monotonic_coarse(ts); + do_monotonic_coarse(ts); + break; + default: + goto fallback; } - if (ret == VCLOCK_NONE) - return vdso_fallback_gettime(clock, ts); return 0; +fallback: + return vdso_fallback_gettime(clock, ts); } int clock_gettime(clockid_t, struct timespec *) __attribute__((weak, alias("__vdso_clock_gettime"))); |