search for: vgtod_hres

...ck_gettime.c +++ b/arch/x86/entry/vdso/vclock_gettime.c @@ -140,7 +140,7 @@ notrace static inline u64 vgetcyc(int mo notrace static int do_hres(clockid_t clk, struct timespec *ts) { - struct vgtod_ts *base = &gtod->basetime[clk]; + struct vgtod_ts *base = &gtod->basetime[clk & VGTOD_HRES_MASK]; u64 cycles, last, ns; unsigned int seq; --- a/arch/x86/entry/vsyscall/vsyscall_gtod.c +++ b/arch/x86/entry/vsyscall/vsyscall_gtod.c @@ -51,6 +51,10 @@ void update_vsyscall(struct timekeeper * base->sec = tk->xtime_sec; base->nsec = tk->tkr_mono.xtime_nsec; + base = &a...

.../vdso/vclock_gettime.c > @@ -140,7 +140,7 @@ notrace static inline u64 vgetcyc(int mo > > notrace static int do_hres(clockid_t clk, struct timespec *ts) > { > - struct vgtod_ts *base = &gtod->basetime[clk]; > + struct vgtod_ts *base = &gtod->basetime[clk & VGTOD_HRES_MASK]; > u64 cycles, last, ns; > unsigned int seq; > > --- a/arch/x86/entry/vsyscall/vsyscall_gtod.c > +++ b/arch/x86/entry/vsyscall/vsyscall_gtod.c > @@ -51,6 +51,10 @@ void update_vsyscall(struct timekeeper * > base->sec = tk->xtime_sec; > base->nsec...

.../vdso/vclock_gettime.c > @@ -140,7 +140,7 @@ notrace static inline u64 vgetcyc(int mo > > notrace static int do_hres(clockid_t clk, struct timespec *ts) > { > - struct vgtod_ts *base = &gtod->basetime[clk]; > + struct vgtod_ts *base = &gtod->basetime[clk & VGTOD_HRES_MASK]; > u64 cycles, last, ns; > unsigned int seq; > > --- a/arch/x86/entry/vsyscall/vsyscall_gtod.c > +++ b/arch/x86/entry/vsyscall/vsyscall_gtod.c > @@ -51,6 +51,10 @@ void update_vsyscall(struct timekeeper * > base->sec = tk->xtime_sec; > base->nsec...

Matt attempted to add CLOCK_TAI support to the VDSO clock_gettime() implementation, which extended the clockid switch case and added yet another slightly different copy of the same code. Especially the extended switch case is problematic as the compiler tends to generate a jump table which then requires to use retpolines. If jump tables are disabled it adds yet another conditional to the existing

Matt attempted to add CLOCK_TAI support to the VDSO clock_gettime() implementation, which extended the clockid switch case and added yet another slightly different copy of the same code. Especially the extended switch case is problematic as the compiler tends to generate a jump table which then requires to use retpolines. If jump tables are disabled it adds yet another conditional to the existing

Matt attempted to add CLOCK_TAI support to the VDSO clock_gettime() implementation, which extended the clockid switch case and added yet another slightly different copy of the same code. Especially the extended switch case is problematic as the compiler tends to generate a jump table which then requires to use retpolines. If jump tables are disabled it adds yet another conditional to the existing

...t;tv_sec += __iter_div_u64_rem(ns, NSEC_PER_SEC, &ns); ts->tv_nsec = ns; - return mode; + return 0; } notrace static void do_coarse(clockid_t clk, struct timespec *ts) @@ -251,8 +214,7 @@ notrace int __vdso_clock_gettime(clockid */ msk = 1U << clock; if (likely(msk & VGTOD_HRES)) { - if (do_hres(clock, ts) != VCLOCK_NONE) - return 0; + return do_hres(clock, ts); } else if (msk & VGTOD_COARSE) { do_coarse(clock, ts); return 0; @@ -268,8 +230,7 @@ notrace int __vdso_gettimeofday(struct t if (likely(tv != NULL)) { struct timespec *ts = (struct timespec *...