The patch titled
Subject: mm/memory-failure: simplify put_ref_page()
has been added to the -mm mm-unstable branch. Its filename is
mm-memory-failure-simplify-put_ref_page.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-simplify-put_ref_page.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: simplify put_ref_page()
Date: Wed, 12 Jun 2024 15:18:23 +0800
Patch series "Some cleanups for memory-failure", v3.
This series contains a few cleanup patches to avoid exporting unused
function, add helper macro, fix some obsolete comments and so on. More
details can be found in the respective changelogs.
This patch (of 13):
Remove unneeded page != NULL check. pfn_to_page() won't return NULL. No
functional change intended.
Link: https://lkml.kernel.org/r/20240612071835.157004-1-linmiaohe@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20240612071835.157004-2-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Cc: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Cc: Naoya Horiguchi <nao.horiguchi@xxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memory-failure.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
--- a/mm/memory-failure.c~mm-memory-failure-simplify-put_ref_page
+++ a/mm/memory-failure.c
@@ -2120,14 +2120,10 @@ static inline unsigned long folio_free_r
/* Drop the extra refcount in case we come from madvise() */
static void put_ref_page(unsigned long pfn, int flags)
{
- struct page *page;
-
if (!(flags & MF_COUNT_INCREASED))
return;
- page = pfn_to_page(pfn);
- if (page)
- put_page(page);
+ put_page(pfn_to_page(pfn));
}
static int memory_failure_dev_pagemap(unsigned long pfn, int flags,
_
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
