From: Masami Hiramatsu <mhiramat@kernel.org>
Date: Thu, 21 Feb 2019 16:16:43 +0000 (+0900)
Subject: tracing/kprobes: Use probe_kernel_read instead of probe_mem_read
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=49ef5f45701c3dedc6aa6efee5d03756fea0f99d;p=linux.git

tracing/kprobes: Use probe_kernel_read instead of probe_mem_read

Use probe_kernel_read() instead of probe_mem_read() because
probe_mem_read() is a kind of wrapper for switching memory
read function between uprobes and kprobes.

Link: http://lkml.kernel.org/r/20190222011643.3e19ade84a3db3e83518648f@kernel.org

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
---

diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 9eaf07f99212f..99592c27465e1 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -865,7 +865,7 @@ fetch_store_strlen(unsigned long addr)
 	u8 c;
 
 	do {
-		ret = probe_mem_read(&c, (u8 *)addr + len, 1);
+		ret = probe_kernel_read(&c, (u8 *)addr + len, 1);
 		len++;
 	} while (c && ret == 0 && len < MAX_STRING_SIZE);