Re: [PATCH] trace_output: change struct trace_seq's size to PAGE_SIZE

[Frederic Weisbecker <fweisbec@gmail.com>]

On Sat, Nov 28, 2009 at 04:40:16PM +0800, Lai Jiangshan wrote:
> 
> It's not very good that we allocate pages with page_order > 1.
> So we change struct trace_seq's size to PAGE_SIZE.
> 
> Where we allocate a struct trace_seq:
> 
> kernel/trace/trace.c:3720:      s = kmalloc(sizeof(*s), GFP_KERNEL);
> kernel/trace/trace_events.c:539:        s = kmalloc(sizeof(*s), GFP_KERNEL);
> kernel/trace/trace_events.c:580:        s = kmalloc(sizeof(*s), GFP_KERNEL);
> kernel/trace/trace_events.c:604:        s = kmalloc(sizeof(*s), GFP_KERNEL);
> kernel/trace/trace_events.c:660:        s = kmalloc(sizeof(*s), GFP_KERNEL);
> kernel/trace/trace_events.c:715:        s = kmalloc(sizeof(*s), GFP_KERNEL);
> kernel/trace/trace_ksym.c:230:  s = kmalloc(sizeof(*s), GFP_KERNEL);
> 
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>



Looks good to me.

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>

Steve, any objection?