Messages in this thread Patch in this message | | | Date | Mon, 04 Mar 2019 17:06:17 -0500 | From | Steven Rostedt <> | Subject | [PATCH 2/2] tracing/kprobes: Use probe_kernel_read instead of probe_mem_read |
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From: Masami Hiramatsu <mhiramat@kernel.org>
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> --- kernel/trace/trace_kprobe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 9eaf07f99212..99592c27465e 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); -- 2.20.1
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