+ liveupdate-luo_file-use-private-list.patch added to mm-nonmm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: liveupdate: luo_file: use private list
has been added to the -mm mm-nonmm-unstable branch.  Its filename is
     liveupdate-luo_file-use-private-list.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/liveupdate-luo_file-use-private-list.patch

This patch will later appear in the mm-nonmm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Pasha Tatashin <pasha.tatashin@soleen.com>
Subject: liveupdate: luo_file: use private list
Date: Wed, 26 Nov 2025 13:57:25 -0500

Switch LUO to use the private list iterators.

Link: https://lkml.kernel.org/r/20251126185725.4164769-4-pasha.tatashin@soleen.com
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Dan Carpenter <dan.carpenter@linaro.org>
Cc: Alexander Graf <graf@amazon.com>
Cc: David Gow <davidgow@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <kees@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/liveupdate/luo_file.c     |    7 ++++---
 kernel/liveupdate/luo_internal.h |    7 -------
 2 files changed, 4 insertions(+), 10 deletions(-)

--- a/kernel/liveupdate/luo_file.c~liveupdate-luo_file-use-private-list
+++ a/kernel/liveupdate/luo_file.c
@@ -104,6 +104,7 @@
 #include <linux/io.h>
 #include <linux/kexec_handover.h>
 #include <linux/kho/abi/luo.h>
+#include <linux/list_private.h>
 #include <linux/liveupdate.h>
 #include <linux/module.h>
 #include <linux/sizes.h>
@@ -273,7 +274,7 @@ int luo_preserve_file(struct luo_file_se
 		goto  err_fput;
 
 	err = -ENOENT;
-	luo_list_for_each_private(fh, &luo_file_handler_list, list) {
+	list_private_for_each_entry(fh, &luo_file_handler_list, list) {
 		if (fh->ops->can_preserve(fh, file)) {
 			err = 0;
 			break;
@@ -768,7 +769,7 @@ int luo_file_deserialize(struct luo_file
 		bool handler_found = false;
 		struct luo_file *luo_file;
 
-		luo_list_for_each_private(fh, &luo_file_handler_list, list) {
+		list_private_for_each_entry(fh, &luo_file_handler_list, list) {
 			if (!strcmp(fh->compatible, file_ser[i].compatible)) {
 				handler_found = true;
 				break;
@@ -843,7 +844,7 @@ int liveupdate_register_file_handler(str
 		return -EBUSY;
 
 	/* Check for duplicate compatible strings */
-	luo_list_for_each_private(fh_iter, &luo_file_handler_list, list) {
+	list_private_for_each_entry(fh_iter, &luo_file_handler_list, list) {
 		if (!strcmp(fh_iter->compatible, fh->compatible)) {
 			pr_err("File handler registration failed: Compatible string '%s' already registered.\n",
 			       fh->compatible);
--- a/kernel/liveupdate/luo_internal.h~liveupdate-luo_file-use-private-list
+++ a/kernel/liveupdate/luo_internal.h
@@ -40,13 +40,6 @@ static inline int luo_ucmd_respond(struc
  */
 #define luo_restore_fail(__fmt, ...) panic(__fmt, ##__VA_ARGS__)
 
-/* Mimics list_for_each_entry() but for private list head entries */
-#define luo_list_for_each_private(pos, head, member)				\
-	for (struct list_head *__iter = (head)->next;				\
-	     __iter != (head) &&						\
-	     ({ pos = container_of(__iter, typeof(*(pos)), member); 1; });	\
-	     __iter = __iter->next)
-
 /**
  * struct luo_file_set - A set of files that belong to the same sessions.
  * @files_list: An ordered list of files associated with this session, it is
_

Patches currently in -mm which might be from pasha.tatashin@soleen.com are

liveupdate-luo_flb-introduce-file-lifecycle-bound-global-state.patch
tests-liveupdate-add-in-kernel-liveupdate-test.patch
list-add-primitives-for-private-list-manipulations.patch
list-add-kunit-test-for-private-list-primitives.patch
liveupdate-luo_file-use-private-list.patch