mark_eb_hdr_free
ebh->ops->mark_eb_hdr_free = mark_eb_hdr_free;
ebh->ops->mark_eb_hdr_free = mark_eb_hdr_free;
int mark_eb_hdr_free(struct chfs_ebh *ebh, int pebnr, int ec);
err = ebh->ops->mark_eb_hdr_free(ebh,
err = ebh->ops->mark_eb_hdr_free(ebh,
int (*mark_eb_hdr_free)(struct chfs_ebh *ebh, int pebnr, int ec);