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authorAnil S Keshavamurthy <anil.s.keshavamurthy@intel.com>2006-01-09 23:52:43 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 11:01:40 -0500
commit49a2a1b83ba6fa40c41968d6a28ba16e7ed0c3f7 (patch)
treef257b535d0f09f9ac2531d40feb732349993665c /include/asm-ia64
parent41dead49ccb4d7f0a34d56478f487342a3c3ab2b (diff)
[PATCH] kprobes: changed from using spinlock to mutex
Since Kprobes runtime exception handlers is now lock free as this code path is now using RCU to walk through the list, there is no need for the register/unregister{_kprobe} to use spin_{lock/unlock}_isr{save/restore}. The serialization during registration/unregistration is now possible using just a mutex. In the above process, this patch also fixes a minor memory leak for x86_64 and powerpc. 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.h5
1 files changed, 0 insertions, 5 deletions
diff --git a/include/asm-ia64/kprobes.h b/include/asm-ia64/kprobes.h
index 5b26462674a7..12a0b93020da 100644
--- a/include/asm-ia64/kprobes.h
+++ b/include/asm-ia64/kprobes.h
@@ -110,11 +110,6 @@ struct arch_specific_insn {
110 unsigned short target_br_reg; 110 unsigned short target_br_reg;
111}; 111};
112 112
113/* ia64 does not need this */
114static inline void arch_copy_kprobe(struct kprobe *p)
115{
116}
117
118extern int kprobe_exceptions_notify(struct notifier_block *self, 113extern int kprobe_exceptions_notify(struct notifier_block *self,
119 unsigned long val, void *data); 114 unsigned long val, void *data);
120 115