The patch titled
Subject: mm/memory-failure: remove obsolete comment in unpoison_memory()
has been added to the -mm mm-unstable branch. Its filename is
mm-memory-failure-remove-obsolete-comment-in-unpoison_memory.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memory-failure-remove-obsolete-comment-in-unpoison_memory.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/memory-failure: remove obsolete comment in unpoison_memory()
Date: Wed, 12 Jun 2024 15:18:31 +0800
Since commit 130d4df57390 ("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@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Cc: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Cc: kernel test robot <lkp@xxxxxxxxx>
Cc: Naoya Horiguchi <nao.horiguchi@xxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory-failure.c | 4 ----
1 file changed, 4 deletions(-)
--- a/mm/memory-failure.c~mm-memory-failure-remove-obsolete-comment-in-unpoison_memory
+++ a/mm/memory-failure.c
@@ -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);
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
mm-memory-failure-simplify-put_ref_page.patch
mm-memory-failure-remove-mf_msg_slab.patch
mm-memory-failure-add-macro-get_page_max_retry_num.patch
mm-memory-failure-save-some-page_folio-calls.patch
mm-memory-failure-remove-unneeded-empty-string.patch
mm-memory-failure-remove-confusing-initialization-to-count.patch
mm-memory-failure-dont-export-hwpoison_filter-when-config_hwpoison_inject.patch
mm-memory-failure-use-helper-macro-task_pid_nr.patch
mm-memory-failure-remove-obsolete-comment-in-unpoison_memory.patch
mm-memory-failure-move-some-function-declarations-into-internalh.patch
mm-memory-failure-fix-comment-of-get_hwpoison_page.patch
mm-memory-failure-remove-obsolete-comment-in-kill_proc.patch
mm-memory-failure-correct-comment-in-me_swapcache_dirty.patch
