Commit 28eab7d4 authored by Miaohe Lin's avatar Miaohe Lin Committed by Andrew Morton
Browse files

mm/memory-failure: remove obsolete comment in unpoison_memory() 

Since commit 130d4df5 ("mm/sl[au]b: rearrange struct slab fields to
allow larger rcu_head"), folio->_mapcount is not overloaded with SLAB. 
Update corresponding comment.

Link: https://lkml.kernel.org/r/20240612071835.157004-10-linmiaohe@huawei.com


Signed-off-by: default avatarMiaohe Lin <linmiaohe@huawei.com>
Reviewed-by: default avatarDavid Hildenbrand <david@redhat.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: kernel test robot <lkp@intel.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 96e13a4e

mm/memory-failure.c

+0 −4
Original line number Diff line number Diff line
@@ -2584,10 +2584,6 @@ int unpoison_memory(unsigned long pfn) 
	    folio_test_reserved(folio) || folio_test_offline(folio))

		goto unlock_mutex;



	/*

	 * Note that folio->_mapcount is overloaded in SLAB, so the simple test

	 * in folio_mapped() has to be done after folio_test_slab() is checked.

	 */

	if (folio_mapped(folio)) {

		unpoison_pr_info("Unpoison: Someone maps the hwpoison page %#lx\n",

				 pfn, &unpoison_rs);