diff options
| author |   Christoph Hellwig <hch@lst.de> | 2007-10-16 01:24:07 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:42:50 -0700 |
| commit | 74a0b5762713a26496db72eac34fbbed46f20fce (patch) | |
| tree | 4a14df7c07ebc16283454f33713519a0e10b5c43 /include/asm-ia64 | |
| parent | Convert cpu_sibling_map to be a per cpu variable (diff) | |
| download | linux-dev-74a0b5762713a26496db72eac34fbbed46f20fce.tar.xz linux-dev-74a0b5762713a26496db72eac34fbbed46f20fce.zip | |
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-ia64')
| -rw-r--r-- | include/asm-ia64/kdebug.h | 15 | ||||
| -rw-r--r-- | include/asm-ia64/kprobes.h | 1 |
2 files changed, 0 insertions, 16 deletions
diff --git a/include/asm-ia64/kdebug.h b/include/asm-ia64/kdebug.h index 320cd8e754ea..35e49407d06c 100644 --- a/include/asm-ia64/kdebug.h +++ b/include/asm-ia64/kdebug.h @@ -26,21 +26,6 @@ * 2005-Oct Keith Owens <kaos@sgi.com>. Expand notify_die to cover more * events. */ -#include <linux/notifier.h> - -/* - * These are only here because kprobes.c wants them to implement a - * blatant layering violation. Will hopefully go away soon once all - * architectures are updated. - */ -static inline int register_page_fault_notifier(struct notifier_block *nb) -{ - return 0; -} -static inline int unregister_page_fault_notifier(struct notifier_block *nb) -{ - return 0; -} enum die_val { DIE_BREAK = 1, diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h index 067d9dea68f9..6c79edf24d73 100644 --- a/include/asm-ia64/kprobes.h +++ b/include/asm-ia64/kprobes.h @@ -83,7 +83,6 @@ struct kprobe_ctlblk { }; #define ARCH_SUPPORTS_KRETPROBES -#define ARCH_INACTIVE_KPROBE_COUNT 1 #define SLOT0_OPCODE_SHIFT (37) #define SLOT1_p1_OPCODE_SHIFT (37 - (64-46)) |