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Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/vsyscall.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/x86_64/kernel/vsyscall.c b/arch/x86_64/kernel/vsyscall.c
index 902783bc4d5..ac48c3857dd 100644
--- a/arch/x86_64/kernel/vsyscall.c
+++ b/arch/x86_64/kernel/vsyscall.c
@@ -77,7 +77,8 @@ static __always_inline void do_vgettimeofday(struct timeval * tv)
__vxtime.tsc_quot) >> 32;
/* See comment in x86_64 do_gettimeofday. */
} else {
- usec += ((readl((void *)fix_to_virt(VSYSCALL_HPET) + 0xf0) -
+ usec += ((readl((void __iomem *)
+ fix_to_virt(VSYSCALL_HPET) + 0xf0) -
__vxtime.last) * __vxtime.quot) >> 32;
}
} while (read_seqretry(&__xtime_lock, sequence));
@@ -191,7 +192,8 @@ static int vsyscall_sysctl_change(ctl_table *ctl, int write, struct file * filp,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
extern u16 vsysc1, vsysc2;
- u16 *map1, *map2;
+ u16 __iomem *map1;
+ u16 __iomem *map2;
int ret = proc_dointvec(ctl, write, filp, buffer, lenp, ppos);
if (!write)
return ret;
@@ -206,11 +208,11 @@ static int vsyscall_sysctl_change(ctl_table *ctl, int write, struct file * filp,
goto out;
}
if (!sysctl_vsyscall) {
- *map1 = SYSCALL;
- *map2 = SYSCALL;
+ writew(SYSCALL, map1);
+ writew(SYSCALL, map2);
} else {
- *map1 = NOP2;
- *map2 = NOP2;
+ writew(NOP2, map1);
+ writew(NOP2, map2);
}
iounmap(map2);
out: