> From: Nicolin Chen <[email protected]> > Sent: Saturday, June 14, 2025 3:15 PM > + > + offset = > + cmd->nesting_parent_iova - PAGE_ALIGN(cmd- > >nesting_parent_iova); > + max_npages = DIV_ROUND_UP(offset + cmd->length, PAGE_SIZE); > + > + /* > + * FIXME allocation may fail when sizeof(*pages) * max_npages is > + * larger than PAGE_SIZE. This might need a new API returning a > + * bio_vec or something more efficient. > + */ > + pages = kcalloc(max_npages, sizeof(*pages), GFP_KERNEL); > + if (!pages) > + return ERR_PTR(-ENOMEM); > +
any allocation may fail... can you elaborate more here? How does PAGE_SIZE become a boundary?
