+ mm-remove-pagereadahead.patch added to mm-unstable branch

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The patch titled
     Subject: mm: remove PageReadahead
has been added to the -mm mm-unstable branch.  Its filename is
     mm-remove-pagereadahead.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-remove-pagereadahead.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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*** 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: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm: remove PageReadahead
Date: Wed, 21 Aug 2024 20:34:36 +0100

This flag is now only used on folios, so we can remove all the page
accessors.

Link: https://lkml.kernel.org/r/20240821193445.2294269-4-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 include/linux/page-flags.h |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/include/linux/page-flags.h~mm-remove-pagereadahead
+++ a/include/linux/page-flags.h
@@ -553,8 +553,8 @@ PAGEFLAG(MappedToDisk, mappedtodisk, PF_
 /* PG_readahead is only used for reads; PG_reclaim is only for writes */
 PAGEFLAG(Reclaim, reclaim, PF_NO_TAIL)
 	TESTCLEARFLAG(Reclaim, reclaim, PF_NO_TAIL)
-PAGEFLAG(Readahead, readahead, PF_NO_COMPOUND)
-	TESTCLEARFLAG(Readahead, readahead, PF_NO_COMPOUND)
+FOLIO_FLAG(readahead, FOLIO_HEAD_PAGE)
+	FOLIO_TEST_CLEAR_FLAG(readahead, FOLIO_HEAD_PAGE)
 
 #ifdef CONFIG_HIGHMEM
 /*
_

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





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