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Subject[PATCH 05/23] y2038: vdso: change time_t to __kernel_old_time_t
Date
Only x86 uses the 'time' syscall in vdso, so change that to
__kernel_old_time_t as a preparation for removing 'time_t' and
'__kernel_time_t' later.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/x86/entry/vdso/vclock_gettime.c | 6 +++---
arch/x86/entry/vsyscall/vsyscall_64.c | 2 +-
arch/x86/um/vdso/um_vdso.c | 4 ++--
lib/vdso/gettimeofday.c | 4 ++--
4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
index d9ff616bb0f6..7d70935b6758 100644
--- a/arch/x86/entry/vdso/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -15,7 +15,7 @@
#include "../../../../lib/vdso/gettimeofday.c"

extern int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz);
-extern time_t __vdso_time(time_t *t);
+extern __kernel_old_time_t __vdso_time(__kernel_old_time_t *t);

int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
{
@@ -25,12 +25,12 @@ int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
__attribute__((weak, alias("__vdso_gettimeofday")));

-time_t __vdso_time(time_t *t)
+__kernel_old_time_t __vdso_time(__kernel_old_time_t *t)
{
return __cvdso_time(t);
}

-time_t time(time_t *t) __attribute__((weak, alias("__vdso_time")));
+__kernel_old_time_t time(__kernel_old_time_t *t) __attribute__((weak, alias("__vdso_time")));


#if defined(CONFIG_X86_64) && !defined(BUILD_VDSO32_64)
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index 76e62bcb8d87..bba5bfdb2a56 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -194,7 +194,7 @@ bool emulate_vsyscall(unsigned long error_code,
break;

case 1:
- if (!write_ok_or_segv(regs->di, sizeof(time_t))) {
+ if (!write_ok_or_segv(regs->di, sizeof(__kernel_old_time_t))) {
ret = -EFAULT;
goto check_fault;
}
diff --git a/arch/x86/um/vdso/um_vdso.c b/arch/x86/um/vdso/um_vdso.c
index 371724cf70da..2112b8d14668 100644
--- a/arch/x86/um/vdso/um_vdso.c
+++ b/arch/x86/um/vdso/um_vdso.c
@@ -37,7 +37,7 @@ int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
__attribute__((weak, alias("__vdso_gettimeofday")));

-time_t __vdso_time(time_t *t)
+__kernel_old_time_t __vdso_time(__kernel_old_time_t *t)
{
long secs;

@@ -47,7 +47,7 @@ time_t __vdso_time(time_t *t)

return secs;
}
-time_t time(time_t *t) __attribute__((weak, alias("__vdso_time")));
+__kernel_old_time_t time(__kernel_old_time_t *t) __attribute__((weak, alias("__vdso_time")));

long
__vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index 45f57fd2db64..9ecfd3b547ba 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -164,10 +164,10 @@ __cvdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
}

#ifdef VDSO_HAS_TIME
-static __maybe_unused time_t __cvdso_time(time_t *time)
+static __maybe_unused __kernel_old_time_t __cvdso_time(__kernel_old_time_t *time)
{
const struct vdso_data *vd = __arch_get_vdso_data();
- time_t t = READ_ONCE(vd[CS_HRES_COARSE].basetime[CLOCK_REALTIME].sec);
+ __kernel_old_time_t t = READ_ONCE(vd[CS_HRES_COARSE].basetime[CLOCK_REALTIME].sec);

if (time)
*time = t;
--
2.20.0
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