On Fri, 31 Oct 2014 14:19:03 +0900 Masami Hiramatsu <[email protected]> wrote:
> > + /* Load the contents of ptr into the callback parameter */ > > + offset = (unsigned long)ptr; > > + offset -= (unsigned long)trampoline + op_offset + OP_REF_SIZE; > > + > > + op_ptr.offset = offset; > > + > > + /* put in the new offset to the ftrace_ops */ > > + memcpy(trampoline + op_offset, &op_ptr, OP_REF_SIZE); > > Would we better call flush_icache_range here? Do we need to? We just allocated memory to execute. It shouldn't be in any CPU cache on the machine. -- Steve > > Thank you, > > > + > > + /* ALLOC_TRAMP flags lets us know we created it */ > > + ops->flags |= FTRACE_OPS_FL_ALLOC_TRAMP; > > + > > + return (unsigned long)trampoline; > > +} > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
