Displaying 5 results from an estimated 5 matches for "vgtod_hres_mask".
2018 Sep 14
0
[patch 11/11] x66/vdso: Add CLOCK_TAI support
...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 = >od->basetime[clk];
+ struct vgtod_ts *base = >od->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 = &vd...
2018 Sep 14
2
[patch 11/11] x66/vdso: Add CLOCK_TAI support
.../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 = >od->basetime[clk];
> + struct vgtod_ts *base = >od->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-...
2018 Sep 14
2
[patch 11/11] x66/vdso: Add CLOCK_TAI support
.../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 = >od->basetime[clk];
> + struct vgtod_ts *base = >od->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-...
2018 Sep 14
24
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
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
2018 Sep 14
24
[patch 00/11] x86/vdso: Cleanups, simmplifications and CLOCK_TAI support
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