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authorIngo Molnar <mingo@elte.hu>2010-08-31 09:45:21 +0200
committerIngo Molnar <mingo@elte.hu>2010-08-31 09:45:46 +0200
commitdaab7fc734a53fdeaf844b7c03053118ad1769da (patch)
tree575deb3cdcc6dda562acaed6f7c29bc81ae01cf2 /arch/x86/kernel/vsyscall_64.c
parent774ea0bcb27f57b6fd521b3b6c43237782fed4b9 (diff)
parent2bfc96a127bc1cc94d26bfaa40159966064f9c8c (diff)
downloadblackbird-op-linux-daab7fc734a53fdeaf844b7c03053118ad1769da.tar.gz
blackbird-op-linux-daab7fc734a53fdeaf844b7c03053118ad1769da.zip
Merge commit 'v2.6.36-rc3' into x86/memblock
Conflicts: arch/x86/kernel/trampoline.c mm/memblock.c Merge reason: Resolve the conflicts, update to latest upstream. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/vsyscall_64.c')
-rw-r--r--arch/x86/kernel/vsyscall_64.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/x86/kernel/vsyscall_64.c b/arch/x86/kernel/vsyscall_64.c
index 1c0c6ab9c60f..dcbb28c4b694 100644
--- a/arch/x86/kernel/vsyscall_64.c
+++ b/arch/x86/kernel/vsyscall_64.c
@@ -73,8 +73,8 @@ void update_vsyscall_tz(void)
write_sequnlock_irqrestore(&vsyscall_gtod_data.lock, flags);
}
-void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
- u32 mult)
+void update_vsyscall(struct timespec *wall_time, struct timespec *wtm,
+ struct clocksource *clock, u32 mult)
{
unsigned long flags;
@@ -87,7 +87,7 @@ void update_vsyscall(struct timespec *wall_time, struct clocksource *clock,
vsyscall_gtod_data.clock.shift = clock->shift;
vsyscall_gtod_data.wall_time_sec = wall_time->tv_sec;
vsyscall_gtod_data.wall_time_nsec = wall_time->tv_nsec;
- vsyscall_gtod_data.wall_to_monotonic = wall_to_monotonic;
+ vsyscall_gtod_data.wall_to_monotonic = *wtm;
vsyscall_gtod_data.wall_time_coarse = __current_kernel_time();
write_sequnlock_irqrestore(&vsyscall_gtod_data.lock, flags);
}
@@ -169,13 +169,18 @@ int __vsyscall(0) vgettimeofday(struct timeval * tv, struct timezone * tz)
* unlikely */
time_t __vsyscall(1) vtime(time_t *t)
{
- struct timeval tv;
+ unsigned seq;
time_t result;
if (unlikely(!__vsyscall_gtod_data.sysctl_enabled))
return time_syscall(t);
- vgettimeofday(&tv, NULL);
- result = tv.tv_sec;
+ do {
+ seq = read_seqbegin(&__vsyscall_gtod_data.lock);
+
+ result = __vsyscall_gtod_data.wall_time_sec;
+
+ } while (read_seqretry(&__vsyscall_gtod_data.lock, seq));
+
if (t)
*t = result;
return result;
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