From e597c2984c64609c6e1e1ac803f00f7550705860 Mon Sep 17 00:00:00 2001 From: Anil S Keshavamurthy Date: Mon, 9 Jan 2006 20:52:45 -0800 Subject: [PATCH] kprobes: arch_remove_kprobe Currently arch_remove_kprobes() is only implemented/required for x86_64 and powerpc. All other architecture like IA64, i386 and sparc64 implementes a dummy function which is being called from arch independent kprobes.c file. This patch removes the dummy functions and replaces it with #define arch_remove_kprobe(p, s) do { } while(0) Signed-off-by: Anil S Keshavamurthy Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/i386/kernel/kprobes.c | 4 ---- arch/ia64/kernel/kprobes.c | 4 ---- arch/powerpc/kernel/kprobes.c | 4 +++- arch/sparc64/kernel/kprobes.c | 4 ---- arch/x86_64/kernel/kprobes.c | 4 +++- 5 files changed, 6 insertions(+), 14 deletions(-) (limited to 'arch') diff --git a/arch/i386/kernel/kprobes.c b/arch/i386/kernel/kprobes.c index 68fe10250486..2f372dbd34fd 100644 --- a/arch/i386/kernel/kprobes.c +++ b/arch/i386/kernel/kprobes.c @@ -77,10 +77,6 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) (unsigned long) p->addr + sizeof(kprobe_opcode_t)); } -void __kprobes arch_remove_kprobe(struct kprobe *p) -{ -} - static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb) { kcb->prev_kprobe.kp = kprobe_running(); diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index 89a70400c4f6..4de7f6759093 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -467,10 +467,6 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) flush_icache_range(arm_addr, arm_addr + sizeof(bundle_t)); } -void __kprobes arch_remove_kprobe(struct kprobe *p) -{ -} - /* * We are resuming execution after a single step fault, so the pt_regs * structure reflects the register state after we executed the instruction diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 2cd32dd6898b..93444e32fccd 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -80,9 +80,11 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) (unsigned long) p->addr + sizeof(kprobe_opcode_t)); } -void __kprobes arch_remove_kprobe(struct kprobe *p) +void __kprobes arch_remove_kprobe(struct kprobe *p, struct semaphore *s) { + down(s); free_insn_slot(p->ainsn.insn); + up(s); } static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs) diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c index bbd5aa6818ea..ff5e9d5cad50 100644 --- a/arch/sparc64/kernel/kprobes.c +++ b/arch/sparc64/kernel/kprobes.c @@ -61,10 +61,6 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) flushi(p->addr); } -void __kprobes arch_remove_kprobe(struct kprobe *p) -{ -} - static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb) { kcb->prev_kprobe.kp = kprobe_running(); diff --git a/arch/x86_64/kernel/kprobes.c b/arch/x86_64/kernel/kprobes.c index 128e18190f99..61a6a9369cbd 100644 --- a/arch/x86_64/kernel/kprobes.c +++ b/arch/x86_64/kernel/kprobes.c @@ -220,9 +220,11 @@ void __kprobes arch_disarm_kprobe(struct kprobe *p) (unsigned long) p->addr + sizeof(kprobe_opcode_t)); } -void __kprobes arch_remove_kprobe(struct kprobe *p) +void __kprobes arch_remove_kprobe(struct kprobe *p, struct semaphore *s) { + down(s); free_insn_slot(p->ainsn.insn); + up(s); } static inline void save_previous_kprobe(struct kprobe_ctlblk *kcb) -- cgit v1.2.2