Commits
Wang Long committed 52e68924dfa
Documentation: Fix the wrong command `echo -1 > set_ftrace_pid` for cleaning the filter. The command `echo > set_ftrace_pid` should be used to clean the filter quietly. because the command `echo -1 > set_ftrace_pid` will output the following: "bash: echo: write error: Invalid argument". so update the file Documentation/trace/ftrace.txt. Signed-off-by: Wang Long <long.wanglong@huawei.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>