Commit 49ef5f45 authored Feb 22, 2019 by Masami Hiramatsu Committed by Steven Rostedt (VMware) Mar 01, 2019

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>

parent 6a072128

kernel/trace/trace_kprobe.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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);

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