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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-sparc64
parent3d5631e0631a11633c649bc995a6537ec21b67b4 (diff)
downloadblackbird-op-linux-e6f47f978bcd5413fff610613b18e9e0eab9bc1b.tar.gz
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[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-sparc64')
-rw-r--r--include/asm-sparc64/kprobes.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/asm-sparc64/kprobes.h b/include/asm-sparc64/kprobes.h
index e9bb26f770ed..15065af566c2 100644
--- a/include/asm-sparc64/kprobes.h
+++ b/include/asm-sparc64/kprobes.h
@@ -12,6 +12,7 @@ typedef u32 kprobe_opcode_t;
#define JPROBE_ENTRY(pentry) (kprobe_opcode_t *)pentry
#define arch_remove_kprobe(p) do {} while (0)
+#define ARCH_INACTIVE_KPROBE_COUNT 0
/* Architecture specific copy of original instruction*/
struct arch_specific_insn {
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