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authorThomas Gleixner <tglx@linutronix.de>2012-02-28 23:46:04 +0400
committerJohn Stultz <john.stultz@linaro.org>2012-03-16 05:17:58 +0400
commit2ab516575f2f273b19d95140d02c54612201e80a (patch)
tree26db92249e65754d99759af21fd207507a81cec8 /arch/x86/include
parent6c260d586343f7f78239d90aa9e2cfed02f74ff3 (diff)
downloadlinux-2ab516575f2f273b19d95140d02c54612201e80a.tar.xz
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')
-rw-r--r--arch/x86/include/asm/vgtod.h2
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;