+ mm-mm_initc-move-build-check-on-max_zonelists-out-of-ifdef.patch added to mm-unstable branch

+ mm-mm_initc-move-build-check-on-max_zonelists-out-of-ifdef.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/mm_init.c: move build check on MAX_ZONELISTS out of ifdef
has been added to the -mm mm-unstable branch.  Its filename is
     mm-mm_initc-move-build-check-on-max_zonelists-out-of-ifdef.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-mm_initc-move-build-check-on-max_zonelists-out-of-ifdef.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: Wei Yang <richard.weiyang@gmail.com>
Subject: mm/mm_init.c: move build check on MAX_ZONELISTS out of ifdef
Date: Wed, 19 Jun 2024 01:06:10 +0000

Current check on MAX_ZONELISTS is wrapped in CONFIG_DEBUG_MEMORY_INIT,
which may not be triggered all the time.

Let's move it out to a more general place.

Link: https://lkml.kernel.org/r/20240619010612.20740-2-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/mm_init.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/mm_init.c~mm-mm_initc-move-build-check-on-max_zonelists-out-of-ifdef
+++ a/mm/mm_init.c
@@ -54,7 +54,6 @@ void __init mminit_verify_zonelist(void)
 		struct zonelist *zonelist;
 		int i, listid, zoneid;
 
-		BUILD_BUG_ON(MAX_ZONELISTS > 2);
 		for (i = 0; i < MAX_ZONELISTS * MAX_NR_ZONES; i++) {
 
 			/* Identify the zone and nodelist */
@@ -2657,6 +2656,7 @@ static void __init mem_init_print_info(v
 void __init mm_core_init(void)
 {
 	/* Initializations relying on SMP setup */
+	BUILD_BUG_ON(MAX_ZONELISTS > 2);
 	build_all_zonelists(NULL);
 	page_alloc_init_cpuhp();
 
_

Patches currently in -mm which might be from richard.weiyang@gmail.com are

mm-mm_initc-print-mem_init-info-after-defer_init-is-done.patch
mm-mm_initc-simplify-logic-of-deferred__pages.patch
mm-mm_initc-simplify-logic-of-deferred__pages-v2.patch
mm-sparse-nr_pages-wont-be-0.patch
mm-mm_initc-move-build-check-on-max_zonelists-out-of-ifdef.patch
mm-page_alloc-fix-a-typo-in-comment-about-gfp-flag.patch
mm-page_alloc-reword-the-comment-of-buddy_merge_likely.patch