From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org, willy@infradead.org,
gregory.price@memverge.com, david@redhat.com,
wangkefeng.wang@huawei.com, akpm@linux-foundation.org
Subject: + mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch added to mm-unstable branch
Date: Fri, 10 Nov 2023 09:25:48 -0800 [thread overview]
Message-ID: <20231110172548.E71A9C433C7@smtp.kernel.org> (raw)
The patch titled
Subject: mm: huge_memory: use more folio api in __split_huge_page_tail()
has been added to the -mm mm-unstable branch. Its filename is
mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.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: Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: mm: huge_memory: use more folio api in __split_huge_page_tail()
Date: Fri, 10 Nov 2023 11:33:21 +0800
Use more folio APIs to save six compound_head() calls in
__split_huge_page_tail().
Link: https://lkml.kernel.org/r/20231110033324.2455523-5-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Gregory Price <gregory.price@memverge.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/huge_memory.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/mm/huge_memory.c~mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail
+++ a/mm/huge_memory.c
@@ -2509,13 +2509,13 @@ static void __split_huge_page_tail(struc
clear_compound_head(page_tail);
/* Finally unfreeze refcount. Additional reference from page cache. */
- page_ref_unfreeze(page_tail, 1 + (!PageAnon(head) ||
- PageSwapCache(head)));
+ page_ref_unfreeze(page_tail, 1 + (!folio_test_anon(folio) ||
+ folio_test_swapcache(folio)));
- if (page_is_young(head))
- set_page_young(page_tail);
- if (page_is_idle(head))
- set_page_idle(page_tail);
+ if (folio_test_young(folio))
+ folio_set_young(new_folio);
+ if (folio_test_idle(folio))
+ folio_set_idle(new_folio);
folio_xchg_last_cpupid(new_folio, folio_last_cpupid(folio));
_
Patches currently in -mm which might be from wangkefeng.wang@huawei.com are
fs-proc-page-remove-unneeded-pagetail-pageslab-check.patch
fs-proc-page-use-a-folio-in-stable_page_flags.patch
fs-proc-page-respect-folio-head-page-flag-placement.patch
mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch
mm-task_mmu-use-a-folio-in-smaps_account.patch
mm-task_mmu-use-a-folio-in-clear_refs_pte_range.patch
page_idle-kill-page-idle-and-young-wrapper.patch
next reply other threads:[~2023-11-10 17:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-10 17:25 Andrew Morton [this message]
2023-12-04 19:15 + mm-huge_memory-use-more-folio-api-in-__split_huge_page_tail.patch added to mm-unstable branch Andrew Morton
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