The patch titled
Subject: mm: remove redundant condition for THP folio
has been added to the -mm mm-unstable branch. Its filename is
mm-remove-redundant-condition-for-thp-folio.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-redundant-condition-for-thp-folio.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Dev Jain <dev.jain@xxxxxxx>
Subject: mm: remove redundant condition for THP folio
Date: Fri, 18 Oct 2024 15:11:51 +0530
folio_test_pmd_mappable() implies folio_test_large(), therefore, simplify
the expression for is_thp.
Link: https://lkml.kernel.org/r/20241018094151.3458-1-dev.jain@xxxxxxx
Signed-off-by: Dev Jain <dev.jain@xxxxxxx>
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>
Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/migrate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/migrate.c~mm-remove-redundant-condition-for-thp-folio
+++ a/mm/migrate.c
@@ -1732,7 +1732,7 @@ static int migrate_pages_batch(struct li
list_for_each_entry_safe(folio, folio2, from, lru) {
is_large = folio_test_large(folio);
- is_thp = is_large && folio_test_pmd_mappable(folio);
+ is_thp = folio_test_pmd_mappable(folio);
nr_pages = folio_nr_pages(folio);
cond_resched();
_
Patches currently in -mm which might be from dev.jain@xxxxxxx are
mm-abstract-thp-allocation.patch
mm-allocate-thp-on-hugezeropage-wp-fault.patch
mm-remove-redundant-condition-for-thp-folio.patch
