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ebpf refresh - Coggle Diagram
ebpf refresh
kptrs
one kfunc acquire, another release
define one ublk buffer by kptrs
share between ublk and io_uring
hello world?
capability
root only?
use cases
hid-bpf story
old io_uring patch
fuse-ebpf
kfuncs
how to use it in ebpf prog
can all kfunc be used by prog?
no, kfunc is registered for prog type
map
userspace
use syscall to access it
arena?
kernel
use bpf helper to access it
ebpf vs. wasm
ebpf verifier
write C prog with libebpf