The patch titled
Subject: mm: remove PageActive
has been added to the -mm mm-unstable branch. Its filename is
mm-remove-pageactive.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-pageactive.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: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm: remove PageActive
Date: Wed, 21 Aug 2024 20:34:34 +0100
Patch series "Simplify the page flags a little".
In the course of our folio conversions, we have made many page flags only
used on folios, so we can now remove the page-based accessors. This
should cut down compile time a little, and prevent new users from cropping
up.
There is more that could be done in this area, but it would produce merge
conflicts, so I'll sit on those patches until next merge window. We now
have line of sight to removing PG_private_2 and PG_private.
This patch (of 10):
This flag is now only used on folios, so we can remove all the page
accessors.
Link: https://lkml.kernel.org/r/20240821193445.2294269-1-willy@xxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20240821193445.2294269-2-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/page-flags.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/include/linux/page-flags.h~mm-remove-pageactive
+++ a/include/linux/page-flags.h
@@ -510,8 +510,9 @@ PAGEFLAG(Dirty, dirty, PF_HEAD) TESTSCFL
__CLEARPAGEFLAG(Dirty, dirty, PF_HEAD)
PAGEFLAG(LRU, lru, PF_HEAD) __CLEARPAGEFLAG(LRU, lru, PF_HEAD)
TESTCLEARFLAG(LRU, lru, PF_HEAD)
-PAGEFLAG(Active, active, PF_HEAD) __CLEARPAGEFLAG(Active, active, PF_HEAD)
- TESTCLEARFLAG(Active, active, PF_HEAD)
+FOLIO_FLAG(active, FOLIO_HEAD_PAGE)
+ __FOLIO_CLEAR_FLAG(active, FOLIO_HEAD_PAGE)
+ FOLIO_TEST_CLEAR_FLAG(active, FOLIO_HEAD_PAGE)
PAGEFLAG(Workingset, workingset, PF_HEAD)
TESTCLEARFLAG(Workingset, workingset, PF_HEAD)
PAGEFLAG(Checked, checked, PF_NO_COMPOUND) /* Used by some filesystems */
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
fs-remove-calls-to-set-and-clear-the-folio-error-flag.patch
mm-remove-pg_error.patch
mm-return-the-folio-from-swapin_readahead.patch
printf-remove-%pgt-support.patch
mm-introduce-page_mapcount_is_type.patch
mm-support-only-one-page_type-per-page.patch
zsmalloc-use-all-available-24-bits-of-page_type.patch
mm-remove-pageactive.patch
mm-remove-pageswapbacked.patch
mm-remove-pagereadahead.patch
mm-remove-pageswapcache.patch
mm-remove-pageunevictable.patch
mm-remove-pagemlocked.patch
mm-remove-pageownerpriv1.patch
mm-remove-page_has_private.patch
mm-rename-pg_mappedtodisk-to-pg_owner_2.patch
x86-remove-pg_uncached.patch
