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authorAnil S Keshavamurthy <anil.s.keshavamurthy@intel.com>2006-06-26 00:25:29 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-26 09:58:22 -0700
commite6f47f978bcd5413fff610613b18e9e0eab9bc1b (patch)
treebf9e698cb76a0e958a8c9157fba74fb6d8255298 /include/asm-ia64
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-ia64')
-rw-r--r--include/asm-ia64/kprobes.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h
index 8c0fc227f0f..2418a787c40 100644
--- a/include/asm-ia64/kprobes.h
+++ b/include/asm-ia64/kprobes.h
@@ -82,6 +82,7 @@ struct kprobe_ctlblk {
#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry
#define ARCH_SUPPORTS_KRETPROBES
+#define ARCH_INACTIVE_KPROBE_COUNT 1
#define SLOT0_OPCODE_SHIFT (37)
#define SLOT1_p1_OPCODE_SHIFT (37 - (64-46))