mm/memory-failure: convert hwpoison_user_mappings to take a folio

mm/memory-failure: convert hwpoison_user_mappings to take a folio

Pass the folio from the callers, and use it throughout instead of hpage.
Saves dozens of calls to compound_head().

Link: https://lkml.kernel.org/r/20240412193510.2356957-9-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Jane Chu <jane.chu@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>