> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Zhang, Yanmin
> Sent: Monday, April 19, 2010 1:33 PM
> To: Avi Kivity
> Cc: Ingo Molnar; Peter Zijlstra; Avi Kivity; Sheng Yang;
> [email protected]; [email protected]; Marcelo
> Tosatti; oerg Roedel; Jes Sorensen; Gleb Natapov; Zachary
> Amsden; [email protected]; [email protected];
> Arnaldo Carvalho de Melo
> Subject: [PATCH V5 1/3] perf & kvm: Enhance perf to collect
> KVM guest os statistics from host side
>
> Below patch introduces perf_guest_info_callbacks and related
> register/unregister
> functions. Add more PERF_RECORD_MISC_XXX bits meaning guest
> kernel and guest user
> space.
>
> Signed-off-by: Zhang Yanmin <[email protected]>
>
> ---
> diff -Nraup --exclude-from=exclude.diff
> linux-2.6_tip0417/include/linux/perf_event.h
> linux-2.6_tip0417_perfkvm/include/linux/perf_event.h
> --- linux-2.6_tip0417/include/linux/perf_event.h
> 2010-04-19 09:51:59.544791000 +0800
> +++ linux-2.6_tip0417_perfkvm/include/linux/perf_event.h
> 2010-04-19 09:53:59.691378953 +0800
> @@ -932,6 +940,12 @@ static inline void perf_event_mmap(struc
> __perf_event_mmap(vma);
> }
>
> +extern struct perf_guest_info_callbacks *perf_guest_cbs;
> +extern int perf_register_guest_info_callbacks(
> + struct perf_guest_info_callbacks *);
> +extern int perf_unregister_guest_info_callbacks(
> + struct perf_guest_info_callbacks *);
> +
> extern void perf_event_comm(struct task_struct *tsk);
> extern void perf_event_fork(struct task_struct *tsk);
>
> @@ -1001,6 +1015,11 @@ perf_sw_event(u32 event_id, u64 nr, int
> static inline void
> perf_bp_event(struct perf_event *event, void *data)
> { }
>
> +static inline int perf_register_guest_info_callbacks
> +(struct perf_guest_info_callbacks *) {return 0; }
> +static inline int perf_unregister_guest_info_callbacks
> +(struct perf_guest_info_callbacks *) {return 0; }
> +
> static inline void perf_event_mmap(struct vm_area_struct
> *vma) { }
> static inline void perf_event_comm(struct task_struct *tsk)
> { }
> static inline void perf_event_fork(struct task_struct *tsk)
> { }
Hi,
I met this error when built kernel. Anything wrong?
CC init/main.o
In file included from include/linux/ftrace_event.h:8,
from include/trace/syscall.h:6,
from include/linux/syscalls.h:75,
from init/main.c:16:
include/linux/perf_event.h: In function 'perf_register_guest_info_callbacks':
include/linux/perf_event.h:1019: error: parameter name omitted
include/linux/perf_event.h: In function 'perf_unregister_guest_info_callbacks':
include/linux/perf_event.h:1021: error: parameter name omitted
make[1]: *** [init/main.o] Error 1
make: *** [init] Error 2
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