diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2012-02-28 20:46:04 +0100 |
|---|---|---|
| committer | John Stultz <john.stultz@linaro.org> | 2012-03-16 02:17:58 +0100 |
| commit | 2ab516575f2f273b19d95140d02c54612201e80a (patch) | |
| tree | 26db92249e65754d99759af21fd207507a81cec8 /arch/x86/include/asm/vgtod.h | |
| parent | x86: vdso: Remove bogus locking in update_vsyscall_tz() (diff) | |
| download | linux-2ab516575f2f273b19d95140d02c54612201e80a.tar.xz linux-2ab516575f2f273b19d95140d02c54612201e80a.zip | |
x86: vdso: Use seqcount instead of seqlock
The update of the vdso data happens under xtime_lock, so adding a
nested lock is pointless. Just use a seqcount to sync the readers.
Reviewed-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'arch/x86/include/asm/vgtod.h')
| -rw-r--r-- | arch/x86/include/asm/vgtod.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h index 815285bcaceb..1f007178c813 100644 --- a/arch/x86/include/asm/vgtod.h +++ b/arch/x86/include/asm/vgtod.h @@ -5,7 +5,7 @@ #include <linux/clocksource.h> struct vsyscall_gtod_data { - seqlock_t lock; + seqcount_t seq; /* open coded 'struct timespec' */ time_t wall_time_sec; |