On Sat, 3 Nov 2012, Shan Wei wrote:
> return (char *)this_cpu_ptr(_buffer->buffer);
Makes sense since buffer is the actual start of the bytes and not a
pointer to a buffer like what I thought.
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On Sat, 3 Nov 2012, Shan Wei wrote:
return (char *)this_cpu_ptr(percpu_buffer-buffer);
Makes sense since buffer is the actual start of the bytes and not a
pointer to a buffer like what I thought.
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Christoph Lameter said, at 2012/11/3 1:53:
>
> hmm what is actually returned is a pointer to char right? And buffer
> is char[1024] so I guess then you need to pass a pointer to char to
> this_cpu_read.
>
> return this_cpu_read(&(percpu_buffer->buffer))
still error
On Fri, 2 Nov 2012, Shan Wei wrote:
> Christoph Lameter said, at 2012/11/1 1:50:
> >>
> >> - buffer = per_cpu_ptr(percpu_buffer, smp_processor_id());
> >> + buffer = this_cpu_ptr(percpu_buffer);
> >>
> >>return buffer->buffer;
> >
> >
> > Just do a
> >
> > return
Christoph Lameter said, at 2012/11/1 1:50:
>>
>> -buffer = per_cpu_ptr(percpu_buffer, smp_processor_id());
>> +buffer = this_cpu_ptr(percpu_buffer);
>>
>> return buffer->buffer;
>
>
> Just do a
>
> return this_cpu_read(percpu_buffer->buffer);
>
> and get rid of the
Christoph Lameter said, at 2012/11/1 1:50:
-buffer = per_cpu_ptr(percpu_buffer, smp_processor_id());
+buffer = this_cpu_ptr(percpu_buffer);
return buffer-buffer;
Just do a
return this_cpu_read(percpu_buffer-buffer);
and get rid of the this_cpu_ptr op
can not do
On Fri, 2 Nov 2012, Shan Wei wrote:
Christoph Lameter said, at 2012/11/1 1:50:
- buffer = per_cpu_ptr(percpu_buffer, smp_processor_id());
+ buffer = this_cpu_ptr(percpu_buffer);
return buffer-buffer;
Just do a
return this_cpu_read(percpu_buffer-buffer);
and get
Christoph Lameter said, at 2012/11/3 1:53:
hmm what is actually returned is a pointer to char right? And buffer
is char[1024] so I guess then you need to pass a pointer to char to
this_cpu_read.
return this_cpu_read((percpu_buffer-buffer))
still error
kernel/trace/trace.c: In
On Wed, 31 Oct 2012, Shan Wei wrote:
> From: Shan Wei
>
>
> Signed-off-by: Shan Wei
> ---
> kernel/trace/blktrace.c |2 +-
> kernel/trace/trace.c|2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
> index
From: Shan Wei
Signed-off-by: Shan Wei
---
kernel/trace/blktrace.c |2 +-
kernel/trace/trace.c|2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index c0bd030..71259e2 100644
--- a/kernel/trace/blktrace.c
+++
From: Shan Wei davids...@tencent.com
Signed-off-by: Shan Wei davids...@tencent.com
---
kernel/trace/blktrace.c |2 +-
kernel/trace/trace.c|2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index c0bd030..71259e2
On Wed, 31 Oct 2012, Shan Wei wrote:
From: Shan Wei davids...@tencent.com
Signed-off-by: Shan Wei davids...@tencent.com
---
kernel/trace/blktrace.c |2 +-
kernel/trace/trace.c|2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/trace/blktrace.c
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