On 28.04.25 17:28, Lorenzo Stoakes wrote:
This is a key step in our being able to abstract and isolate VMA allocation and destruction logic. This function is the last one where vm_area_free() and vm_area_dup() are directly referenced outside of mmap, so having this in mm allows us to isolate these. We do the same for the nommu version which is substantially simpler. We place the declaration for dup_mmap() in mm/internal.h and have kernel/fork.c import this in order to prevent improper use of this functionality elsewhere in the kernel. While we're here, we remove the useless #ifdef CONFIG_MMU check around mmap_read_lock_maybe_expand() in mmap.c, mmap.c is compiled only if CONFIG_MMU is set. Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@xxxxxxxxxx> Suggested-by: Pedro Falcato <pfalcato@xxxxxxx> Reviewed-by: Pedro Falcato <pfalcato@xxxxxxx> ---
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx> -- Cheers, David / dhildenb
