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Commit c8538a7a authored by Matt Mackall's avatar Matt Mackall Committed by Linus Torvalds
Browse files

[PATCH] remove all kernel BUGs 



This patch eliminates all kernel BUGs, trims about 35k off the typical
kernel, and makes the system slightly faster.

Signed-off-by: default avatarMatt Mackall <mpm@selenic.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent e43379f1

include/asm-alpha/bug.h

+3 −0
Original line number Diff line number Diff line 
#ifndef _ALPHA_BUG_H

#define _ALPHA_BUG_H



#ifdef CONFIG_BUG

#include <asm/pal.h>



/* ??? Would be nice to use .gprel32 here, but we can't be sure that the
@@ -10,6 +11,8 @@ 
		       : : "i" (PAL_bugchk), "i"(__LINE__), "i"(__FILE__))



#define HAVE_ARCH_BUG

#endif



#include <asm-generic/bug.h>



#endif

include/asm-arm/bug.h

+3 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 


#include <linux/config.h>



#ifdef CONFIG_BUG

#ifdef CONFIG_DEBUG_BUGVERBOSE

extern volatile void __bug(const char *file, int line, void *data);
@@ -17,6 +18,8 @@ extern volatile void __bug(const char *file, int line, void *data); 
#endif



#define HAVE_ARCH_BUG

#endif



#include <asm-generic/bug.h>



#endif

include/asm-arm26/bug.h

+3 −0
Original line number Diff line number Diff line
@@ -3,6 +3,7 @@ 


#include <linux/config.h>



#ifdef CONFIG_BUG

#ifdef CONFIG_DEBUG_BUGVERBOSE

extern volatile void __bug(const char *file, int line, void *data);

/* give file/line information */
@@ -12,6 +13,8 @@ extern volatile void __bug(const char *file, int line, void *data); 
#endif



#define HAVE_ARCH_BUG

#endif



#include <asm-generic/bug.h>



#endif

include/asm-frv/bug.h

+2 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 


#include <linux/config.h>



#ifdef CONFIG_BUG

/*

 * Tell the user there is some problem.

 */
@@ -45,6 +46,7 @@ do { \ 
#define HAVE_ARCH_KGDB_BAD_PAGE

#define kgdb_bad_page(page) do { kgdb_raise(SIGABRT); } while(0)

#endif

#endif



#include <asm-generic/bug.h>

include/asm-generic/bug.h

+19 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ 
#include <linux/compiler.h>

#include <linux/config.h>



#ifdef CONFIG_BUG

#ifndef HAVE_ARCH_BUG

#define BUG() do { \

	printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
@@ -31,4 +32,22 @@ 
} while (0)

#endif



#else /* !CONFIG_BUG */

#ifndef HAVE_ARCH_BUG

#define BUG()

#endif



#ifndef HAVE_ARCH_PAGE_BUG

#define PAGE_BUG(page) do { if (page) ; } while (0)

#endif



#ifndef HAVE_ARCH_BUG_ON

#define BUG_ON(condition) do { if (condition) ; } while(0)

#endif



#ifndef HAVE_ARCH_WARN_ON

#define WARN_ON(condition) do { if (condition) ; } while(0)

#endif

#endif



#endif