diff options
| author | Andi Kleen <andi@firstfloor.org> | 2008-05-14 16:10:42 -0700 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2008-05-23 14:08:06 +0200 |
| commit | a1289643adb6272c04db9399653ae195072c482a (patch) | |
| tree | 3453581e5c948119acdf8db2fc4e087b7e30e014 | |
| parent | 2ddfd20e7c55421435cbf95a5ed3dd6e423cf934 (diff) | |
| download | op-kernel-dev-a1289643adb6272c04db9399653ae195072c482a.zip op-kernel-dev-a1289643adb6272c04db9399653ae195072c482a.tar.gz | |
x86: use explicit copy in vdso_gettimeofday()
Jeremy's gcc 3.4 seems to be unable to inline a 8 byte memcpy. But the
vdso doesn't support external references. Copy the structure members
of struct timezone explicitely instead.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | arch/x86/vdso/vclock_gettime.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c index 23476c2..efa2ba7 100644 --- a/arch/x86/vdso/vclock_gettime.c +++ b/arch/x86/vdso/vclock_gettime.c @@ -106,9 +106,9 @@ int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz) do_realtime((struct timespec *)tv); tv->tv_usec /= 1000; if (unlikely(tz != NULL)) { - /* This relies on gcc inlining the memcpy. We'll notice - if it ever fails to do so. */ - memcpy(tz, >od->sys_tz, sizeof(struct timezone)); + /* Avoid memcpy. Some old compilers fail to inline it */ + tz->tz_minuteswest = gtod->sys_tz.tz_minuteswest; + tz->tz_dsttime = gtod->sys_tz.tz_dsttime; } return 0; } |
