Re: [PATCH bpf-next v2 04/18] ftrace: add reset_ftrace_direct_ips

On Fri, 4 Jul 2025 09:54:52 +0800
Menglong Dong [off-list ref] wrote:

quoted

What exactly do you mean by "reset"?  

It means to reset the filter hash of the ftrace_ops to ips. In
the origin logic, the filter hash of a direct ftrace_ops will not
be changed. However, in the tracing-multi case, there are
multi functions in the filter hash and can change. This function
is used to change the filter hash of a direct ftrace_ops.

The above still doesn't make sense to me.

Can you explain more what exactly you are doing at a higher level? To
me "reset" means to set back to what it originally was (which usually
is zero or nothing).

-- Steve