Linus removed #bcachefs from mainline, it thus will be gone as of #Linux 6.18:
https://git.kernel.org/torvalds/c/f2c61db29f277b9c80de92102fc532cc247495cd
""bcachefs was marked 'externally maintained' in 6.17 but the code remained to make the transition smoother.
It's now a DKMS module, making the in-kernel code stale, so remove it to avoid any version confusion.""
284 files changed, 0 insertions, 117483 deletions
You hear that Mr. Kernighan? ... That is the
sound of inevitability... It is the sound
of improvement...
It's time, Mr. Kernighan....
Step 1: While debugging a kernel issue, you want the return value of a function at startup.
Step 2: Instead of just adding a printk()
and recompiling, you try tracing like the cool kids.
Step 3: Since 2023, the function graph tracer can show return values. You add to the kernel command line and reboot: ftrace=function_graph ftrace_filter=interesting_fn trace_options=funcgraph-retval
Step 4: The trace shows no return value. You find that ARM return value capture exists only for AArch64, not ARM32.
Step 5: You add a printk()
and rebuild.
Yes, to all of it.
https://lore.kernel.org/all/20250809192156.GA1411279@fedora/