> Make btf_parse_module() take the vmlinux BTF as an argument instead of > fetching it with bpf_get_btf_vmlinux(), and add a data_owned flag: when > set, the passed .BTF data is an already kvmalloc()ed copy that the new > btf takes ownership of on success (on failure the caller keeps it). > > Factor the sysfs file creation out of the module notifier into > btf_module_sysfs_add() and the teardown into btf_module_free(), and set > btf_mod->module right after the allocation rather than under the mutex. > > No functional change. This prepares for CONFIG_DEBUG_INFO_BTF=m, where a > module can be loaded before the vmlinux BTF is available: its .BTF is > then copied and exposed in sysfs first and parsed later, at which point > the parser must take the copy as is so that the sysfs file keeps > pointing at valid data. > > Signed-off-by: Jay Wang <[email protected]>
Sashiko has reviewed this patch and found no issues. It looks great! -- Sashiko AI review ยท https://sashiko.dev/#/patchset/[email protected]?part=1
