filename_lookup.part.64 vs filename_lookup
by ktalinki from LinuxQuestions.org on (#4RC31)
We have a kernel module using filename_lookup call which is not exported anymore in RHEL8 Kernel 4.18. But found another system call exported in /proc/kallsyms, which is filename_lookup.part.64
What is filename_lookup.part.64 ? Can I call it in our code using the address exported in /proc/kallsyms?
I am not able to find any documentation on filename_lookup.part.64.
Is it safe to use this kind of undocumented APIs?
struct filename filename = { .name = name };
struct nameidata nd;
filename_lookup(AT_FDCWD, &filename, LOOKUP_PARENT, &nd);
I am looking to find the calls that can be used to replace the above in the absence of filename_lookup()
What is filename_lookup.part.64 ? Can I call it in our code using the address exported in /proc/kallsyms?
I am not able to find any documentation on filename_lookup.part.64.
Is it safe to use this kind of undocumented APIs?
struct filename filename = { .name = name };
struct nameidata nd;
filename_lookup(AT_FDCWD, &filename, LOOKUP_PARENT, &nd);
I am looking to find the calls that can be used to replace the above in the absence of filename_lookup()