> static inline struct iomap_page *to_iomap_page(struct page *page)
> {
> + VM_BUG_ON_PGFLAGS(PageTail(page), page);
> if (page_has_private(page))
> return (struct iomap_page *)page_private(page);
> return NULL;
Nit: can you add an empty line after the VM_BUG_ON_PGFLAGS assert to
keep the function readable? Maybe also add a comment on the assert,
as it isn't totally obvious.
Otherwise looks good:
Reviewed-by: Christoph Hellwig <h...@lst.de>
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