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- Ensure that the CLOCK_AUX base calculations are properly scaled against
the base timekeeper. The update function failed to take the fractional
nanosecond part into account, which results in a rounding error.
- Cleanup and consolidate the vsyscall headers to get rid of pointless
copies all over the architectures.
- Replace a runtime conditional in the time getter function for namespaced
clocks by simple pointer arithmetic which speeds up the read function.
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Merge tag 'timers-vdso-2026-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO updates from Thomas Gleixner:
"Updates for the VDSO subsystem:
- Ensure that the CLOCK_AUX base calculations are properly scaled
against the base timekeeper. The update function failed to take the
fractional nanosecond part into account, which results in a
rounding error.
- Cleanup and consolidate the vsyscall headers to get rid of
pointless copies all over the architectures.
- Replace a runtime conditional in the time getter function for
namespaced clocks by simple pointer arithmetic which speeds up the
read function"
* tag 'timers-vdso-2026-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
vdso/vsyscall: Keep the CLOCK_AUX base scaled
vdso/math64: Add and use __iter_div64_u64_rem()
vdso/math64: Use OPTIMIZER_HIDE_VAR() in __iter_div_u64_rem()
vdso/gettimeofday: Avoid runtime conditional in do_hres_timens()
vdso: Remove __ASSEMBLER__ guards from vsyscall.h
vdso: Add asm-generic/vdso/vsyscall.h
vdso: Remove unnecessary vdso/vsyscall.h includes
riscv/hwprobe: Include vdso/datapage.h
arm64/vdso: Delete asm/vdso/vsyscall.h inclusions
x86/vdso: Delete asm/vdso/vsyscall.h inclusions
sparc/vdso: Delete asm/vdso/vsyscall.h inclusion
s390/vdso: Delete asm/vdso/vsyscall.h inclusions
sparc/vdso: Move __VDSO_PAGES to asm/vdso.h
x86/vdso: Move vDSO page definitions to asm/vdso.h
vdso: Delete asm-generic/vdso/vsyscall.h
vdso/vsyscall: Define fallback time synchronization functions in vsyscall.c
vdso/getrandom: Define fallback __arch_get_vdso_u_rng_data() in getrandom.c
vdso/gettimeofday: Define fallback __arch_get_vdso_u_time_data() in gettimeofday.c
vdso: Move the kernel-side time update helpers to a new header
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|---|---|---|
| .. | ||
| align.h | ||
| auxclock.h | ||
| bits.h | ||
| cache.h | ||
| clocksource.h | ||
| const.h | ||
| datapage.h | ||
| futex.h | ||
| getrandom.h | ||
| gettime.h | ||
| helpers.h | ||
| jiffies.h | ||
| ktime.h | ||
| limits.h | ||
| math64.h | ||
| page.h | ||
| processor.h | ||
| time.h | ||
| time32.h | ||
| time64.h | ||
| unaligned.h | ||
| vsyscall.h | ||