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authorAnil S Keshavamurthy <anil.s.keshavamurthy@intel.com>2006-06-26 03:25:29 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 12:58:22 -0400
commite6f47f978bcd5413fff610613b18e9e0eab9bc1b (patch)
treebf9e698cb76a0e958a8c9157fba74fb6d8255298 /include/asm-powerpc
parent3d5631e0631a11633c649bc995a6537ec21b67b4 (diff)
[PATCH] Notify page fault call chain
With this patch Kprobes now registers for page fault notifications only when their is an active probe registered. Once all the active probes are unregistered their is no need to be notified of page faults and kprobes unregisters itself from the page fault notifications. Hence we will have ZERO side effects when no probes are active. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/kprobes.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-powerpc/kprobes.h b/include/asm-powerpc/kprobes.h
index f466bc804f41..2d0af52c823d 100644
--- a/include/asm-powerpc/kprobes.h
+++ b/include/asm-powerpc/kprobes.h
@@ -50,6 +50,8 @@ typedef unsigned int kprobe_opcode_t;
50 IS_TWI(instr) || IS_TDI(instr)) 50 IS_TWI(instr) || IS_TDI(instr))
51 51
52#define ARCH_SUPPORTS_KRETPROBES 52#define ARCH_SUPPORTS_KRETPROBES
53#define ARCH_INACTIVE_KPROBE_COUNT 1
54
53void kretprobe_trampoline(void); 55void kretprobe_trampoline(void);
54extern void arch_remove_kprobe(struct kprobe *p); 56extern void arch_remove_kprobe(struct kprobe *p);
55 57