linux-kernel - Re: [PATCH -tip] fix compilation error

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Date:	Wed, 31 Dec 2008 15:12:50 +0100
From:	Frederic Weisbecker <fweisbec@...il.com>
To:	Jaswinder Singh Rajput <jaswinder@...radead.org>
Cc:	Ingo Molnar <mingo@...e.hu>,
	Jaswinder Singh Rajput <jaswinderlinux@...il.com>,
	"H. Peter Anvin" <hpa@...nel.org>,
	x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH -tip] fix compilation error

On Wed, Dec 31, 2008 at 03:15:02PM +0530, Jaswinder Singh Rajput wrote:
> On Wed, 2008-12-31 at 09:44 +0100, Ingo Molnar wrote:
> > * Jaswinder Singh Rajput <jaswinderlinux@...il.com> wrote:
> > 
> > > Hello Ingo,
> > > 
> > > On Wed, Dec 31, 2008 at 1:44 PM, Ingo Molnar <mingo@...e.hu> wrote:
> > > >
> > > > Could you check whether latest tip/master is still OK? I had these
> > > > problems resolved locally (but forgot to push them out), and now i also
> > > > had to do a few conflict resolutions with latest -git, hopefully i have
> > > > not lost hpa's fixes ...
> > > >
> > > 
> > > With latest/tip, I am still getting error on X86_32 machines :
> > > 
> > >   CC      mm/slab.o
> > > mm/slab.c:105:31: error: tracing/kmemtrace.h: No such file or directory
> > > make[1]: *** [mm/slab.o] Error 1
> > > make: *** [mm] Error 2
> > 
> > ok, pushed out a new one - does it build fine now?
> > 
> 
> Yes, Now it looks better, thanks :-)
> 
> I think it will be better to move trace/XXX below to linux/XXX to aviod
> confusion and some minor cleanup in trace folder, do you thinks this is
> useful :


I'm not sure. The tracer's headers are small files that are only included in very few
c files. They should be rarely included for general uses.
 
> 
> ---
>  include/trace/boot.h      |    6 +++---
>  include/trace/kmemtrace.h |    6 +++---
>  mm/slab.c                 |    2 +-
>  3 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/include/trace/boot.h b/include/trace/boot.h
> index 088ea08..21dcce3 100644
> --- a/include/trace/boot.h
> +++ b/include/trace/boot.h
> @@ -1,5 +1,5 @@
> -#ifndef _LINUX_TRACE_BOOT_H
> -#define _LINUX_TRACE_BOOT_H
> +#ifndef _TRACE_BOOT_H
> +#define _TRACE_BOOT_H
>  
>  #include <linux/module.h>
>  #include <linux/kallsyms.h>
> @@ -57,4 +57,4 @@ static inline void enable_boot_trace(void) { }
>  static inline void disable_boot_trace(void) { }
>  #endif /* CONFIG_BOOT_TRACER */
>  
> -#endif /* __LINUX_TRACE_BOOT_H */
> +#endif /* _TRACE_BOOT_H */
> diff --git a/include/trace/kmemtrace.h b/include/trace/kmemtrace.h
> index ad8b785..4ea5300 100644
> --- a/include/trace/kmemtrace.h
> +++ b/include/trace/kmemtrace.h
> @@ -4,8 +4,8 @@
>   * This file is released under GPL version 2.
>   */
>  
> -#ifndef _LINUX_KMEMTRACE_H
> -#define _LINUX_KMEMTRACE_H
> +#ifndef _TRACE_KMEMTRACE_H
> +#define _TRACE_KMEMTRACE_H
>  
>  #ifdef __KERNEL__
>  
> @@ -71,5 +71,5 @@ static inline void kmemtrace_mark_alloc(enum kmemtrace_type_id type_id,
>  
>  #endif /* __KERNEL__ */
>  
> -#endif /* _LINUX_KMEMTRACE_H */
> +#endif /* _TRACE_KMEMTRACE_H */
>  
> diff --git a/mm/slab.c b/mm/slab.c
> index ae76de2..0913e88 100644
> --- a/mm/slab.c
> +++ b/mm/slab.c
> @@ -102,7 +102,6 @@
>  #include	<linux/cpu.h>
>  #include	<linux/sysctl.h>
>  #include	<linux/module.h>
> -#include	<trace/kmemtrace.h>
>  #include	<linux/rcupdate.h>
>  #include	<linux/string.h>
>  #include	<linux/uaccess.h>
> @@ -114,6 +113,7 @@
>  #include	<linux/reciprocal_div.h>
>  #include	<linux/debugobjects.h>
>  #include	<linux/kmemcheck.h>
> +#include	<trace/kmemtrace.h>
>  
>  #include	<asm/cacheflush.h>
>  #include	<asm/tlbflush.h>
> -- 
> 1.5.5.1
> 
> 
> 

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