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Diffstat (limited to 'kernel/trace/fprobe.c')
-rw-r--r--kernel/trace/fprobe.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/kernel/trace/fprobe.c b/kernel/trace/fprobe.c
index 38073632bfe4..8b2dd5b9dcd1 100644
--- a/kernel/trace/fprobe.c
+++ b/kernel/trace/fprobe.c
@@ -56,6 +56,20 @@ out:
}
NOKPROBE_SYMBOL(fprobe_handler);
+static void fprobe_kprobe_handler(unsigned long ip, unsigned long parent_ip,
+ struct ftrace_ops *ops, struct ftrace_regs *fregs)
+{
+ struct fprobe *fp = container_of(ops, struct fprobe, ops);
+
+ if (unlikely(kprobe_running())) {
+ fp->nmissed++;
+ return;
+ }
+ kprobe_busy_begin();
+ fprobe_handler(ip, parent_ip, ops, fregs);
+ kprobe_busy_end();
+}
+
static void fprobe_exit_handler(struct rethook_node *rh, void *data,
struct pt_regs *regs)
{
@@ -110,7 +124,10 @@ error:
static void fprobe_init(struct fprobe *fp)
{
fp->nmissed = 0;
- fp->ops.func = fprobe_handler;
+ if (fprobe_shared_with_kprobes(fp))
+ fp->ops.func = fprobe_kprobe_handler;
+ else
+ fp->ops.func = fprobe_handler;
fp->ops.flags |= FTRACE_OPS_FL_SAVE_REGS;
}