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authorChristoph Hellwig <hch@lst.de>2007-10-16 04:24:07 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 12:42:50 -0400
commit74a0b5762713a26496db72eac34fbbed46f20fce (patch)
tree4a14df7c07ebc16283454f33713519a0e10b5c43 /include/asm-sparc64/kdebug.h
parentd5a7430ddcdb598261d70f7eb1bf450b5be52085 (diff)
x86: optimize page faults like all other achitectures and kill notifier cruft
x86(-64) are the last architectures still using the page fault notifier cruft for the kprobes page fault hook. This patch converts them to the proper direct calls, and removes the now unused pagefault notifier bits aswell as the cruft in kprobes.c that was related to this mess. I know Andi didn't really like this, but all other architecture maintainers agreed the direct calls are much better and besides the obvious cruft removal a common way of dealing with kprobes across architectures is important aswell. [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc64] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Andi Kleen <ak@suse.de> Cc: <linux-arch@vger.kernel.org> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-sparc64/kdebug.h')
-rw-r--r--include/asm-sparc64/kdebug.h18
1 files changed, 0 insertions, 18 deletions
diff --git a/include/asm-sparc64/kdebug.h b/include/asm-sparc64/kdebug.h
index 9974c7b0aebc..f905b773235a 100644
--- a/include/asm-sparc64/kdebug.h
+++ b/include/asm-sparc64/kdebug.h
@@ -1,26 +1,8 @@
1#ifndef _SPARC64_KDEBUG_H 1#ifndef _SPARC64_KDEBUG_H
2#define _SPARC64_KDEBUG_H 2#define _SPARC64_KDEBUG_H
3 3
4/* Nearly identical to x86_64/i386 code. */
5
6#include <linux/notifier.h>
7
8struct pt_regs; 4struct pt_regs;
9 5
10/*
11 * These are only here because kprobes.c wants them to implement a
12 * blatant layering violation. Will hopefully go away soon once all
13 * architectures are updated.
14 */
15static inline int register_page_fault_notifier(struct notifier_block *nb)
16{
17 return 0;
18}
19static inline int unregister_page_fault_notifier(struct notifier_block *nb)
20{
21 return 0;
22}
23
24extern void bad_trap(struct pt_regs *, long); 6extern void bad_trap(struct pt_regs *, long);
25 7
26/* Grossly misnamed. */ 8/* Grossly misnamed. */