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authorTejun Heo <tj@kernel.org>2009-07-03 22:13:18 (GMT)
committerTejun Heo <tj@kernel.org>2009-07-03 22:13:18 (GMT)
commitc43768cbb7655ea5ff782ae250f6e2ef4297cf98 (patch)
tree3982e41dde3eecaa3739a5d1a8ed18d04bd74f01 /arch/s390/kernel/kprobes.c
parent1a8dd307cc0a2119be4e578c517795464e6dabba (diff)
parent746a99a5af60ee676afa2ba469ccd1373493c7e7 (diff)
downloadlinux-fsl-qoriq-c43768cbb7655ea5ff782ae250f6e2ef4297cf98.tar.xz
Merge branch 'master' into for-next
Pull linus#master to merge PER_CPU_DEF_ATTRIBUTES and alpha build fix changes. As alpha in percpu tree uses 'weak' attribute instead of inline assembly, there's no need for __used attribute. Conflicts: arch/alpha/include/asm/percpu.h arch/mn10300/kernel/vmlinux.lds.S include/linux/percpu-defs.h
Diffstat (limited to 'arch/s390/kernel/kprobes.c')
-rw-r--r--arch/s390/kernel/kprobes.c18
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)