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author | James Morris <jmorris@namei.org> | 2009-06-30 09:10:35 +1000 |
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committer | James Morris <jmorris@namei.org> | 2009-06-30 09:10:35 +1000 |
commit | ac7242142b03421c96b0a2f8d99f146d075614c2 (patch) | |
tree | b0b2ead65858c7a343d38affed86fe815e37e7e9 /arch/s390/kernel/kprobes.c | |
parent | 89c86576ecde504da1eeb4f4882b2189ac2f9c4a (diff) | |
parent | 2bfdd79eaa0043346e773ba5f6cfd811ea31b73d (diff) | |
download | op-kernel-dev-ac7242142b03421c96b0a2f8d99f146d075614c2.zip op-kernel-dev-ac7242142b03421c96b0a2f8d99f146d075614c2.tar.gz |
Merge branch 'master' into next
Diffstat (limited to 'arch/s390/kernel/kprobes.c')
-rw-r--r-- | arch/s390/kernel/kprobes.c | 18 |
1 files changed, 7 insertions, 11 deletions
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c index 9bb2f62..86783ef 100644 --- a/arch/s390/kernel/kprobes.c +++ b/arch/s390/kernel/kprobes.c @@ -154,39 +154,35 @@ void __kprobes get_instruction_type(struct arch_specific_insn *ainsn) static int __kprobes swap_instruction(void *aref) { + struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); + unsigned long status = kcb->kprobe_status; struct ins_replace_args *args = aref; + int rc; - return probe_kernel_write(args->ptr, &args->new, sizeof(args->new)); + kcb->kprobe_status = KPROBE_SWAP_INST; + rc = probe_kernel_write(args->ptr, &args->new, sizeof(args->new)); + kcb->kprobe_status = status; + return rc; } void __kprobes arch_arm_kprobe(struct kprobe *p) { - struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - unsigned long status = kcb->kprobe_status; struct ins_replace_args args; args.ptr = p->addr; args.old = p->opcode; args.new = BREAKPOINT_INSTRUCTION; - - kcb->kprobe_status = KPROBE_SWAP_INST; stop_machine(swap_instruction, &args, NULL); - kcb->kprobe_status = status; } void __kprobes arch_disarm_kprobe(struct kprobe *p) { - struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); - unsigned long status = kcb->kprobe_status; struct ins_replace_args args; args.ptr = p->addr; args.old = BREAKPOINT_INSTRUCTION; args.new = p->opcode; - - kcb->kprobe_status = KPROBE_SWAP_INST; stop_machine(swap_instruction, &args, NULL); - kcb->kprobe_status = status; } void __kprobes arch_remove_kprobe(struct kprobe *p) |