hugetlbfs: support tracepoint

Add basic tracepoints for {alloc, evict, free}_inode, setattr and
fallocate. These can help users to debug hugetlbfs more conveniently.

Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Link: https://lore.kernel.org/r/20240829064110.67884-2-lihongbo22@huawei.com


Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>