mm/memory-failure: correct comment in me_swapcache_dirty

Dirty swap cache page could live both in page table (not page cache) and
swap cache when freshly swapped in.  Correct comment.

Link: https://lkml.kernel.org/r/20240612071835.157004-14-linmiaohe@huawei.comSigned-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

mm/memory-failure.c

@@ -1126,7 +1126,7 @@ static int me_pagecache_dirty(struct page_state *ps, struct page *p)
  * Clean and dirty swap cache.
  *
  * Dirty swap cache page is tricky to handle. The page could live both in page
- * cache and swap cache(ie. page is freshly swapped in). So it could be
+ * table and swap cache(ie. page is freshly swapped in). So it could be
  * referenced concurrently by 2 types of PTEs:
  * normal PTEs and swap PTEs. We try to handle them consistently by calling
  * try_to_unmap(!TTU_HWPOISON) to convert the normal PTEs to swap PTEs,