On Thu 2019-06-27 21:18:19, Steven Rostedt wrote: > > From: "Steven Rostedt (VMware)" <rostedt@xxxxxxxxxxx> > > Taking the text_mutex in ftrace_arch_code_modify_prepare() is to fix a > race against module loading and live kernel patching that might try to > change the text permissions while ftrace has it as read/write. This > really needs to be documented in the code. Add a comment that does such. > > Suggested-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> > Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> Reviewed-by: Petr Mladek <pmladek@xxxxxxxx> Best Regards, Petr
