Merge tag 'mm-nonmm-stable-2025-10-10-15-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more updates from Andrew Morton:
 "Just one series here - Mike Rappoport has taught KEXEC handover to
  preserve vmalloc allocations across handover"

* tag 'mm-nonmm-stable-2025-10-10-15-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  lib/test_kho: use kho_preserve_vmalloc instead of storing addresses in fdt
  kho: add support for preserving vmalloc allocations
  kho: replace kho_preserve_phys() with kho_preserve_pages()
  kho: check if kho is finalized in __kho_preserve_order()
  MAINTAINERS, .mailmap: update Umang's email address

Author: torvalds

.mailmap

@@ -803,6 +803,7 @@ Tvrtko Ursulin <tursulin@ursulin.net> <tvrtko.ursulin@onelan.co.uk>
 Tvrtko Ursulin <tursulin@ursulin.net> <tvrtko@ursulin.net>
 Tycho Andersen <tycho@tycho.pizza> <tycho@tycho.ws>
 Tzung-Bi Shih <tzungbi@kernel.org> <tzungbi@google.com>
+Umang Jain <uajain@igalia.com> <umang.jain@ideasonboard.com>
 Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
 Uwe Kleine-König <u.kleine-koenig@baylibre.com> <ukleinek@baylibre.com>
 Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

MAINTAINERS

@@ -23911,7 +23911,7 @@ F:	drivers/media/i2c/imx274.c
 
 SONY IMX283 SENSOR DRIVER
 M:	Kieran Bingham <kieran.bingham@ideasonboard.com>
-M:	Umang Jain <umang.jain@ideasonboard.com>
+R:	Umang Jain <uajain@igalia.com>
 L:	linux-media@vger.kernel.org
 S:	Maintained
 T:	git git://linuxtv.org/media.git

include/linux/kexec_handover.h

@@ -18,6 +18,7 @@ enum kho_event {
 
 struct folio;
 struct notifier_block;
+struct page;
 
 #define DECLARE_KHOSER_PTR(name, type) \
 	union {                        \
@@ -38,13 +39,24 @@ struct notifier_block;
 
 struct kho_serialization;
 
+struct kho_vmalloc_chunk;
+struct kho_vmalloc {
+	DECLARE_KHOSER_PTR(first, struct kho_vmalloc_chunk *);
+	unsigned int total_pages;
+	unsigned short flags;
+	unsigned short order;
+};
+
 #ifdef CONFIG_KEXEC_HANDOVER
 bool kho_is_enabled(void);
 bool is_kho_boot(void);
 
 int kho_preserve_folio(struct folio *folio);
-int kho_preserve_phys(phys_addr_t phys, size_t size);
+int kho_preserve_pages(struct page *page, unsigned int nr_pages);
+int kho_preserve_vmalloc(void *ptr, struct kho_vmalloc *preservation);
 struct folio *kho_restore_folio(phys_addr_t phys);
+struct page *kho_restore_pages(phys_addr_t phys, unsigned int nr_pages);
+void *kho_restore_vmalloc(const struct kho_vmalloc *preservation);
 int kho_add_subtree(struct kho_serialization *ser, const char *name, void *fdt);
 int kho_retrieve_subtree(const char *name, phys_addr_t *phys);
 
@@ -71,7 +83,13 @@ static inline int kho_preserve_folio(struct folio *folio)
 	return -EOPNOTSUPP;
 }
 
-static inline int kho_preserve_phys(phys_addr_t phys, size_t size)
+static inline int kho_preserve_pages(struct page *page, unsigned int nr_pages)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int kho_preserve_vmalloc(void *ptr,
+				       struct kho_vmalloc *preservation)
 {
 	return -EOPNOTSUPP;
 }
@@ -81,6 +99,17 @@ static inline struct folio *kho_restore_folio(phys_addr_t phys)
 	return NULL;
 }
 
+static inline struct page *kho_restore_pages(phys_addr_t phys,
+					     unsigned int nr_pages)
+{
+	return NULL;
+}
+
+static inline void *kho_restore_vmalloc(const struct kho_vmalloc *preservation)
+{
+	return NULL;
+}
+
 static inline int kho_add_subtree(struct kho_serialization *ser,
 				  const char *name, void *fdt)
 {