On Sat, Mar 18, 2023 at 09:33:49AM +0100, Jiri Olsa wrote: > On Thu, Mar 16, 2023 at 05:34:41PM +0000, Matthew Wilcox wrote: > > On Thu, Mar 16, 2023 at 06:01:40PM +0100, Jiri Olsa wrote: > > > hi, > > > this patchset adds build id object pointer to struct file object. > > > > > > We have several use cases for build id to be used in BPF programs > > > [2][3]. > > > > Yes, you have use cases, but you never answered the question I asked: > > > > Is this going to be enabled by every distro kernel, or is it for special > > use-cases where only people doing a very specialised thing who are > > willing to build their own kernels will use it? > > I hope so, but I guess only time tell.. given the response by Ian and Andrii > there are 3 big users already So the whole "There's a config option to turn it off" shtick is just a fig-leaf. I won't ever see it turned off. You're imposing the cost of this on EVERYONE who runs a distro kernel. And almost nobody will see any benefits from it. Thanks for admitting that.