Le 11/01/2021 à 16:18, Andreas Schwab a écrit :
The second argument of __kernel_clock_gettime64 points to a struct
__kernel_timespec, with 64-bit time_t, so use the clock_gettime64 syscall
in the fallback function for the 32-bit vdso. Similarily,
clock_getres_fallback should use the clock_getres_time64 syscall, though
it isn't yet called from the 32-bit vdso.
Signed-off-by: Andreas Schwab <sch...@linux-m68k.org>
Fixes: d0e3fc69d00d ("powerpc/vdso: Provide __kernel_clock_gettime64() on
vdso32")
---
arch/powerpc/include/asm/vdso/gettimeofday.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/include/asm/vdso/gettimeofday.h
b/arch/powerpc/include/asm/vdso/gettimeofday.h
index 81671aa365b3..a26c12df2c9a 100644
--- a/arch/powerpc/include/asm/vdso/gettimeofday.h
+++ b/arch/powerpc/include/asm/vdso/gettimeofday.h
@@ -106,13 +106,21 @@ int gettimeofday_fallback(struct __kernel_old_timeval
*_tv, struct timezone *_tz
static __always_inline
int clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
{
+#ifndef __powerpc64__
I think we should do like x86, create a second version of clock_gettime_fallback() inside the #ifdef
CONFIG_VDSO32, and move that one in a matching (non existing yet) #else
+ return do_syscall_2(__NR_clock_gettime64, _clkid, (unsigned long)_ts);
+#else
return do_syscall_2(__NR_clock_gettime, _clkid, (unsigned long)_ts);
+#endif
}
static __always_inline
int clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
{
+#ifndef __powerpc64__
Same.
+ return do_syscall_2(__NR_clock_getres_time64, _clkid, (unsigned
long)_ts);
+#else
return do_syscall_2(__NR_clock_getres, _clkid, (unsigned long)_ts);
+#endif
}
#ifdef CONFIG_VDSO32
Christophe
