[folded-merged] mm-idle_page_tracking-make-pg_idle-reusable-fix.patch removed from -mm tree

[akpm@linux-foundation.org]

The patch titled
     Subject: mm/PAGE_IDLE_FLAG: Set PAGE_EXTENSION for none-64BIT
has been removed from the -mm tree.  Its filename was
     mm-idle_page_tracking-make-pg_idle-reusable-fix.patch

This patch was dropped because it was folded into mm-idle_page_tracking-make-pg_idle-reusable.patch

------------------------------------------------------
From: SeongJae Park <sjpark@amazon.de>
Subject: mm/PAGE_IDLE_FLAG: Set PAGE_EXTENSION for none-64BIT

Commit 128fd80c4c07 ("mm/idle_page_tracking: Make PG_idle reusable") of
linux-mm[1] allows PAGE_IDLE_FLAG to be set without PAGE_EXTENSION while
64BIT is not set.  This makes 'enum page_ext_flags' undefined, so build
fails as below for the config (!64BIT, !PAGE_EXTENSION, and
IDLE_PAGE_FLAG).

    $ make ARCH=i386 allnoconfig
    $ echo 'CONFIG_PAGE_IDLE_FLAG=y' >> .config
    $ make olddefconfig
    $ make ARCH=i386
    [...]
    ../include/linux/page_idle.h: In function `folio_test_young':
    ../include/linux/page_idle.h:25:18: error: `PAGE_EXT_YOUNG' undeclared (first use in this function); did you mean `PAGEOUTRUN'?
       return test_bit(PAGE_EXT_YOUNG, &page_ext->flags);
    [...]

This commit fixes this issue by making PAGE_EXTENSION to be set when 64BIT
is not set and PAGE_IDLE_FLAG is set.

[1] https://github.com/hnaz/linux-mm/commit/128fd80c4c07

Link: https://lkml.kernel.org/r/20210806095153.6444-1-sj38.park@gmail.com
Fixes: 128fd80c4c07 ("mm/idle_page_tracking: Make PG_idle reusable")
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/Kconfig~mm-idle_page_tracking-make-pg_idle-reusable-fix
+++ a/mm/Kconfig
@@ -741,6 +741,7 @@ config DEFERRED_STRUCT_PAGE_INIT
 
 config PAGE_IDLE_FLAG
 	bool "Add PG_idle and PG_young flags"
+	select PAGE_EXTENSION if !64BIT
 	help
 	  This feature adds PG_idle and PG_young flags in 'struct page'.  PTE
 	  Accessed bit writers can set the state of the bit in the flags to let
@@ -749,7 +750,6 @@ config PAGE_IDLE_FLAG
 config IDLE_PAGE_TRACKING
 	bool "Enable idle page tracking"
 	depends on SYSFS && MMU
-	select PAGE_EXTENSION if !64BIT
 	select PAGE_IDLE_FLAG
 	help
 	  This feature allows to estimate the amount of user pages that have
_

Patches currently in -mm which might be from sjpark@amazon.de are

mm-introduce-data-access-monitor-damon.patch
mm-damon-core-implement-region-based-sampling.patch
mm-damon-adaptively-adjust-regions.patch
mm-idle_page_tracking-make-pg_idle-reusable.patch
mm-idle_page_tracking-make-pg_idle-reusable-fix-2.patch
mm-damon-implement-primitives-for-the-virtual-memory-address-spaces.patch
mm-damon-implement-primitives-for-the-virtual-memory-address-spaces-fix-2.patch
mm-damon-implement-primitives-for-the-virtual-memory-address-spaces-fix-3.patch
mm-damon-add-a-tracepoint.patch
mm-damon-implement-a-debugfs-based-user-space-interface.patch
mm-damon-dbgfs-export-kdamond-pid-to-the-user-space.patch
mm-damon-dbgfs-support-multiple-contexts.patch
documentation-add-documents-for-damon.patch
mm-damon-add-kunit-tests.patch
mm-damon-add-user-space-selftests.patch
maintainers-update-for-damon.patch