[PATCH] Define vsyscall cache as blob to make clearer that user space shouldn't use it

2006-09-29T23:47:55Z

Signed-off-by: Andi Kleen

[PATCH] Add the vgetcpu vsyscall

2006-09-26T08:52:28Z

This patch adds a vgetcpu vsyscall, which depending on the CPU RDTSCP capability uses either the RDTSCP or CPUID to obtain a CPU and node numbers and pass them to the program. AK: Lots of changes over Vojtech's original code: Better prototype for vgetcpu() It's better to pass the cpu / node numbers as separate arguments to avoid mistakes when going from SMP to NUMA. Also add a fast time stamp based cache using a user supplied argument to speed things more up. Use fast method from Chuck Ebbert to retrieve node/cpu from GDT limit instead of CPUID Made sure RDTSCP init is always executed after node is known. Drop printk Signed-off-by: Vojtech Pavlik Signed-off-by: Andi Kleen

kernel/include/linux/getcpu.h, branch linux-2.6.31.y

[PATCH] Define vsyscall cache as blob to make clearer that user space shouldn't use it

[PATCH] Add the vgetcpu vsyscall